/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.coursework-list {
  list-style: none;
  margin: 8px 0 0 0;
  padding-left: 0;
}

.coursework-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 6px;
}

.coursework-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: #f59e0b; /* laranja */
  font-size: 12px;
}

:root {
  --orange-rgb:  255, 153, 0;
  --orange:      #FF9900;
  --orange-dim:  #cc7a00;
  --orange-glow: rgba(255, 153, 0, 0.15);
  --orange-glow2:rgba(255, 153, 0, 0.06);
  --orange-solid:rgba(255, 153, 0, 0.92);
  --orange-strong:rgba(255, 153, 0, 0.9);
  --orange-mid:  rgba(255, 153, 0, 0.3);
  --orange-faint:rgba(255, 153, 0, 0.08);
  --bg:          #0a0a0b;
  --bg-card:     #111114;
  --bg-card2:    #18181d;
  --card-bg:     #111114;
  --border:      rgba(255, 153, 0, 0.18);
  --text:        #e8e8ef;
  --text-muted:  #a8a8bc;
  --mono:        'JetBrains Mono', monospace;
  --sans:        'Inter', sans-serif;
}

body.light {
  --bg:          #f4f4f6;
  --bg-card:     #ffffff;
  --bg-card2:    #eaeaef;
  --card-bg:     #ffffff;
  --border:      rgba(0, 0, 0, 0.1);
  --text:        #111118;
  --text-muted:  #666677;
  --orange-glow: rgba(255, 153, 0, 0.1);
  --orange-glow2:rgba(255, 153, 0, 0.04);
}

body.blue {
  --orange-rgb:   125, 211, 252;
  --orange:       #7dd3fc;
  --orange-dim:   #38bdf8;
  --orange-glow:  rgba(125, 211, 252, 0.15);
  --orange-glow2: rgba(125, 211, 252, 0.06);
  --orange-solid: rgba(125, 211, 252, 0.92);
  --orange-strong:rgba(125, 211, 252, 0.9);
  --orange-mid:   rgba(125, 211, 252, 0.3);
  --orange-faint: rgba(125, 211, 252, 0.08);
  --border:       rgba(125, 211, 252, 0.18);
}

body.light .bg-grid { opacity: 0.03; }
body.light .bg-glow { opacity: 0.15; }
body.light .navbar  { background: rgba(244,244,246,0.92) !important; border-bottom-color: rgba(0,0,0,0.08); }
body.light .nav-logo, body.light .nav-links a { color: #111; }
body.light .nav-social-btn { color: #444; }
body.light .nav-social-btn:hover { color: var(--orange); }
body.light .section-tag { background: rgba(var(--orange-rgb),0.12); color: var(--orange-dim); }
body.light .exp-hcard, body.light .edu-htl-card { box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
body.light .hero-marquee { background: rgba(0,0,0,0.04); border-color: rgba(0,0,0,0.08); }
body.light .tab-btn { background: rgba(0,0,0,0.05); color: #555; }
body.light .tab-btn.active { background: var(--orange); color: #fff; }
body.light .image-frame { box-shadow: 0 8px 40px rgba(0,0,0,0.15); }

/* Light mode text fixes */
body.light .hero-title { color: #111; }
body.light .section-title { color: #111; }
body.light .exp-title, body.light .exp-company { color: #111; }
body.light .exp-period { color: #666; }
body.light .card-val { color: #111; }
body.light .card-sub { color: #555; }
body.light .float-card { background: rgba(255,255,255,0.95); border-color: rgba(0,0,0,0.1); }
body.light .float-card .card-icon { color: var(--orange); }
body.light .hero-skill-icon { color: #333 !important; filter: none; }
body.light .hero-skill-img { filter: none; opacity: 0.8; }
body.light .timeline-label { color: #444; border-color: rgba(0,0,0,0.15); background: rgba(0,0,0,0.05); }
body.light .talk-item { background: #fff; border-left-color: var(--orange); }
body.light .talk-title { color: #111; }
body.light .talk-venue { color: var(--orange-dim); }
body.light .pub-card { background: #fff; border-color: rgba(0,0,0,0.1); }
body.light .pub-info-overlay { background: rgba(255,255,255,0.93); }
body.light .pub-info { background-image: none !important; background: #f8f8fa !important; }
body.light .pub-venue { color: var(--orange); }
body.light .pub-location-text { color: #555; }
body.light .pub-paper { color: #111; }
body.light .pub-type { color: var(--orange); border-color: rgba(var(--orange-rgb),0.4); background: var(--orange-faint); }
body.light .pub-kw { color: #555; background: rgba(0,0,0,0.05); border-color: rgba(0,0,0,0.12); }
body.light .pub-ieee-logo { mix-blend-mode: multiply; }
body.light .beyond-card { background: #fff; border-color: rgba(0,0,0,0.1); }
body.light .beyond-title { color: #111; }
body.light .contact-card { background: #fff; border-color: rgba(0,0,0,0.1); }
body.light .contact-value { color: #111; }
body.light .cert-card-title { color: #111; }
body.light .modal-box { background: #fff; color: #111; }
body.light .modal-title { color: #111; }
body.light .modal-company { color: #444; }
body.light .modal-desc li { color: #333; }
body.light .modal-meta { color: #666; }
body.light .mono { color: #555; }
body.light .edu-specialisation { color: #111; }
body.light .edu-htl-card .exp-title { color: #111; }
body.light .pub-title { color: #111; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ===== ANIMATED GRID BACKGROUND ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(var(--orange-rgb),0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--orange-rgb),0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, var(--orange-faint) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 4rem;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.05em;
}

.nav-logo .mono { opacity: 0.6; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--orange); }

.nav-socials {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: transparent;
  color: var(--orange);
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}

.nav-social-btn:hover {
  background: var(--orange-glow);
  transform: translateY(-1px);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.theme-toggle:hover {
  background: var(--orange-glow);
  color: var(--orange);
  border-color: var(--orange);
  transform: translateY(-1px);
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun  { display: none; }
body.light .theme-toggle .icon-moon { display: none; }
body.light .theme-toggle .icon-sun  { display: block; }

.btn-nav {
  text-decoration: none;
  background: var(--orange);
  color: #000;
  padding: 0.5rem 1.4rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: background 0.2s, transform 0.15s;
}

.btn-nav:hover {
  background: #ffad33;
  transform: translateY(-1px);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  z-index: 1;
  min-height: min(100vh, 960px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: 6.5rem 6rem 9rem;
  max-width: 1400px;
  margin: 0 auto;
  gap: 2.5rem;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6rem;
}

/* ===== HERO LEFT ===== */
.hero-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: 580px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--orange-faint);
  border: 1px solid rgba(var(--orange-rgb),0.25);
  border-radius: 50px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--orange);
  width: fit-content;
  letter-spacing: 0.03em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(74,222,128,0.95); }
  60%  { box-shadow: 0 0 0 10px rgba(74,222,128,0); }
  100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}

.hero-title {
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #fff;
}

.name-highlight {
  color: var(--orange);
  position: relative;
  display: inline-block;
  white-space: nowrap;
}

.name-highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
  border-radius: 2px;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text-muted);
  margin: 0;
}

.hero-tagline-highlight {
  color: var(--orange);
  font-weight: 600;
}

/* ===== CAROUSEL ===== */
.carousel-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  height: 2.2rem;
  overflow: hidden;
}

.carousel-prefix { white-space: nowrap; }

.carousel-track-container {
  overflow: hidden;
  height: 2.2rem;
  flex: 1;
}

.carousel-track {
  display: flex;
  flex-direction: column;
  transition: transform 0.55s cubic-bezier(0.65, 0, 0.35, 1);
}

.carousel-track span {
  height: 2.2rem;
  line-height: 2.2rem;
  color: var(--orange);
  font-weight: 700;
  font-size: 1.05rem;
  white-space: nowrap;
  font-family: var(--mono);
}

/* ===== BIO ===== */
.hero-bio {
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 500px;
  margin-top: -0.5rem;
}

/* ===== CTA BUTTONS ===== */
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-skills {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  margin-top: 0.5rem;
}

.hero-skill-icon {
  font-size: 1.9rem;
  opacity: 0.75;
  color: #fff !important;
  transition: opacity 0.2s, transform 0.2s;
}

.hero-skill-icon:hover {
  opacity: 1;
  transform: translateY(-3px);
}

.hero-skill-img {
  height: 2.5rem;
  width: auto;
  filter: brightness(0) invert(1);
}

.btn-primary {
  text-decoration: none;
  background: var(--orange);
  color: #000;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 0 0 0 rgba(var(--orange-rgb),0);
}

.btn-primary:hover {
  background: #ffad33;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--orange-mid);
}

.btn-secondary {
  text-decoration: none;
  background: transparent;
  color: var(--orange);
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.btn-secondary:hover {
  border-color: var(--orange);
  background: var(--orange-glow);
  transform: translateY(-2px);
}

.btn-icon {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--orange);
  background: transparent;
  border: 1px solid var(--border);
  padding: 0.8rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-icon:hover {
  border-color: var(--orange);
  background: var(--orange-glow);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(var(--orange-rgb),0.15);
}

/* ===== TECH PILLS ===== */
.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-pills span {
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  transition: border-color 0.2s, color 0.2s;
  gap: 0.4rem;
  display: inline-flex;
  align-items: center;
}

.tech-pills span:hover {
  border-color: var(--orange);
  color: var(--orange);
}

/* ===== HERO RIGHT ===== */
.hero-right {
  position: relative;
  flex-shrink: 0;
  width: 380px;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-wrapper {
  position: relative;
  width: 300px;
  height: 360px;
  z-index: 2;
}

.image-frame {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  overflow: hidden;
}

.profile-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 20px;
  display: block;
}

.image-glow-ring {
  position: absolute;
  inset: -3px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--orange) 0%, transparent 50%, var(--orange) 100%);
  z-index: -1;
  animation: ringRotate 4s linear infinite;
}

@keyframes ringRotate {
  from { filter: hue-rotate(0deg); opacity: 0.8; }
  50%  { opacity: 1; }
  to   { filter: hue-rotate(20deg); opacity: 0.8; }
}

.profile-placeholder {
  width: 300px;
  height: 360px;
  background: var(--bg-card);
  border-radius: 20px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.profile-placeholder svg {
  width: 110px;
  height: 110px;
  opacity: 0.8;
}

.placeholder-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  border: 1px dashed var(--orange-mid);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
}

/* ===== FLOATING CARDS ===== */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(17, 17, 20, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  z-index: 10;
  white-space: nowrap;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

a.float-card:hover {
  border-color: var(--orange);
  box-shadow: 0 0 12px rgba(var(--orange-rgb),0.2);
}

.card-icon {
  font-size: 0.75rem;
  color: var(--orange);
}

.card-val {
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.card-sub {
  font-size: 0.6rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.card-1 {
  top: 20px;
  right: -50px;
  animation: floatA 4s ease-in-out infinite;
}

.card-2 {
  bottom: 60px;
  right: -60px;
  animation: floatB 4.5s ease-in-out infinite;
}

.card-3 {
  bottom: 10px;
  left: -60px;
  animation: floatA 5s ease-in-out infinite reverse;
}

@keyframes floatA {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

@keyframes floatB {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(10px); }
}

/* ===== ORBIT ===== */
.orbit-ring {
  position: absolute;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  border: 1px dashed rgba(var(--orange-rgb),0.12);
  animation: orbitSpin 20s linear infinite;
  z-index: 0;
}

.orbit-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--orange);
  top: 50%;
  left: 50%;
  transform-origin: 0 0;
  animation: orbitDot 20s linear infinite;
  z-index: 0;
}

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes orbitDot {
  from { transform: rotate(0deg) translateX(220px) translateY(-5px); }
  to   { transform: rotate(360deg) translateX(220px) translateY(-5px); }
}

/* ===== HERO MARQUEE (contained) ===== */
.hero-marquee {
  position: absolute;
  bottom: 4rem;
  left: 6rem;
  right: 6rem;
  overflow: hidden;
  background: rgba(var(--orange-rgb),0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0;
  /* fade edges */
  mask-image: linear-gradient(90deg, transparent 0%, black 6%, black 94%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 6%, black 94%, transparent 100%);
}

.hero-marquee-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  white-space: nowrap;
  animation: marquee 28s linear infinite;
  width: max-content;
}

.hero-marquee:hover .hero-marquee-inner {
  animation-play-state: paused;
}

.hero-marquee-inner span {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-marquee-inner .sep {
  color: var(--orange);
  font-size: 0.6rem;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.scroll-hint {
  position: absolute;
  bottom: 1.8rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.3);
  animation: scrollBounce 1.6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.3; }
  50%       { transform: translateX(-50%) translateY(6px); opacity: 0.8; }
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
  position: relative;
  z-index: 1;
  padding: 3rem 0 6rem;
  scroll-margin-top: 80px;
  border-top: 1px solid var(--border);
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 10rem;
}

.section-header {
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.section-tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  font-weight: 600;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-top: 0.4rem;
}

.section-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Tab Switcher */
.tab-switcher-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4rem;
}

.tab-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.tab-switcher {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.5);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1.2rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn:not(.tab-active):hover {
  background: rgba(var(--orange-rgb),0.15);
  border-color: var(--orange);
}

.tab-btn.tab-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #000;
  font-weight: 700;
}

.tab-panel { display: block; }
.tab-panel-hidden { display: none; }

/* Coursework Marquee */
.cw-marquee-wrap {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2.4rem;
  overflow: hidden;
}

.cw-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  white-space: nowrap;
  flex-shrink: 0;
  padding: 2px;
}

.cw-marquee {
  flex: 1;
  overflow: hidden;
  mask-image: linear-gradient(to right, black 0%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, black 0%, black 92%, transparent 100%);
}

.cw-marquee-inner {
  display: flex;
  align-items: center;
  width: max-content;
  padding-left: 10rem;
  animation: cw-scroll 60s linear infinite;
}

.cw-marquee-inner span {
  font-size: 0.78rem;
  font-family: var(--mono);
  color: var(--text-muted);
  white-space: nowrap;
  padding: 0 1.1rem;
}

.cw-marquee-inner .cw-sep {
  color: var(--orange);
  opacity: 0.75;
  font-size: 1rem;
  padding: 0;
}

.cw-marquee:hover .cw-marquee-inner {
  animation-play-state: paused;
}

@keyframes cw-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Education Vertical Timeline */
.edu-vtl {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 0.5rem 0;
}

.edu-vtl-line {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange), var(--orange-glow));
}

.edu-vtl-item {
  display: flex;
  align-items: center;
  width: 100%;
}

/* Half containers — each exactly 50% minus half-dot */
.edu-half {
  width: calc(50% - 6px);
  display: flex;
  flex-shrink: 0;
}
.edu-half-left  { justify-content: flex-end;   padding-right: 1rem; }
.edu-half-right { justify-content: flex-start;  padding-left: 1rem; }

.edu-vtl-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  align-self: center;
}

.edu-year-right { text-align: right; }

.edu-vtl-dot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  border: 2px solid var(--bg);
  box-shadow: 0 0 8px rgba(var(--orange-rgb),0.5);
  z-index: 1;
}

/* Horizontal card: logo + text side by side */
.edu-htl-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.8rem;
  width: fit-content;
  flex-shrink: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.8rem 1rem;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s, transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.edu-htl-card::after {
  content: 'Click to view details';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--orange-solid);
  color: #111;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  padding: 5px 0;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.edu-htl-card:hover::after {
  opacity: 1;
  transform: translateY(0);
}

.edu-half-left .edu-htl-card:hover,
.edu-half-right .edu-htl-card:hover {
  border-color: var(--orange);
  background: var(--bg-card2);
  transform: scale(1.08);
  box-shadow: 0 20px 50px var(--orange-mid), 0 0 0 1px rgba(var(--orange-rgb),0.5);
  padding-bottom: 2.2rem;
}

.edu-htl-card .exp-company {
  margin-top: 0;
}

.edu-htl-card .exp-logo {
  width: 52px;
  height: 52px;
  min-width: 52px;
  object-fit: contain;
  border-radius: 8px;
}

.edu-htl-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.edu-specialisation {
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  margin-top: 0.4rem;
  margin-bottom: 0.4rem;
}

/* Horizontal Timeline */
.exp-htimeline {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 0 40px;
}

.exp-axis {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
  padding: 0 0.5rem;
}

.exp-axis-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.exp-axis-label-present {
  color: var(--orange);
}

.exp-axis-bar {
  flex: 1;
  height: 2px;
  background: linear-gradient(to right, var(--orange), rgba(120,120,130,0.4));
  border-radius: 2px;
  position: relative;
}

.exp-axis-bar::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 50%;
  transform: translateY(-50%);
  border-right: 7px solid var(--orange);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.exp-hline {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 5%, var(--orange) 95%, transparent 100%);
  transform: translateY(-50%);
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.exp-arrow {
  color: var(--orange);
  font-size: 1.4rem;
  line-height: 1;
  margin-right: -4px;
  filter: drop-shadow(0 0 6px rgba(var(--orange-rgb),0.8));
}

.exp-hitem {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  cursor: pointer;
  z-index: 1;
}

/* Top items: card → connector → dot (card is above line) */
.exp-top {
  flex-direction: column;
  justify-content: flex-end;
}

/* Bottom items: dot → connector → card (card is below line) */
.exp-bottom {
  flex-direction: column;
  justify-content: flex-start;
}

.exp-hdot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--orange);
  border: 3px solid var(--bg);
  box-shadow: 0 0 10px rgba(var(--orange-rgb),0.6);
  flex-shrink: 0;
  transition: transform 0.2s, box-shadow 0.2s;
  z-index: 2;
}

.exp-hitem:hover .exp-hdot {
  transform: scale(1.8);
  box-shadow: 0 0 30px rgba(var(--orange-rgb),1), 0 0 0 6px rgba(var(--orange-rgb),0.15);
}

.exp-hconnector {
  width: 1px;
  height: 48px;
  background: var(--border);
  flex-shrink: 0;
}

.exp-hcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  width: 160px;
  min-height: 100px;
  justify-content: center;
  text-align: center;
  transition: border-color 0.25s, background 0.25s, transform 0.3s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.25s, padding 0.25s;
}

.exp-hcard.exp-hcard-current {
  border-color: rgba(var(--orange-rgb),0.75);
  box-shadow: 0 0 28px rgba(var(--orange-rgb),0.35), 0 0 70px rgba(var(--orange-rgb),0.15), inset 0 0 24px var(--orange-faint);
  animation: cardPulse 3s ease-in-out infinite;
}

.exp-current-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #111;
  background: var(--orange);
  border-radius: 20px;
  padding: 2px 10px;
  margin-bottom: 0.6rem;
}

.exp-hitem:has(.exp-hcard-current) .exp-hdot {
  box-shadow: 0 0 18px rgba(var(--orange-rgb),1), 0 0 36px rgba(var(--orange-rgb),0.6);
  animation: dotPulse 3s ease-in-out infinite;
}

@keyframes cardPulse {
  0%, 100% { box-shadow: 0 0 28px rgba(var(--orange-rgb),0.35), 0 0 70px rgba(var(--orange-rgb),0.15); }
  50%       { box-shadow: 0 0 45px rgba(var(--orange-rgb),0.55), 0 0 100px rgba(var(--orange-rgb),0.28); }
}

@keyframes dotPulse {
  0%, 100% { box-shadow: 0 0 14px rgba(var(--orange-rgb),0.8); }
  50%       { box-shadow: 0 0 28px rgba(var(--orange-rgb),1), 0 0 50px rgba(var(--orange-rgb),0.65); }
}

.exp-hcard {
  position: relative;
  overflow: hidden;
}

.exp-hcard::after {
  content: 'Click to view details';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--orange-solid);
  color: #111;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  padding: 5px 0;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
}

.exp-hitem:hover .exp-hcard::after {
  opacity: 1;
  transform: translateY(0);
}

.exp-hitem:hover .exp-hcard {
  border-color: var(--orange);
  background: var(--bg-card2);
  transform: translateY(-8px) scale(1.08);
  box-shadow: 0 20px 50px var(--orange-mid), 0 0 0 1px rgba(var(--orange-rgb),0.5);
  padding: 1.3rem 1.4rem 2.2rem;
}

.exp-bottom:hover .exp-hcard {
  transform: translateY(8px) scale(1.08);
  box-shadow: 0 -20px 50px var(--orange-mid), 0 0 0 1px rgba(var(--orange-rgb),0.5);
  padding: 1.3rem 1.4rem 2.2rem;
}

.exp-hitem:hover .exp-hconnector {
  background: var(--orange);
  opacity: 0.6;
}

.exp-hitem:hover .exp-title {
  color: var(--orange);
}

.exp-hconnector {
  transition: background 0.25s, opacity 0.25s;
}

.exp-hcard-current {
  border-color: var(--orange);
  box-shadow: 0 0 20px rgba(var(--orange-rgb),0.15);
}

.exp-logo-init {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  margin: 0 auto 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--orange-rgb),0.1);
  border: 1px solid rgba(var(--orange-rgb),0.25);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.05em;
}

.exp-logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: 10px;
  margin: 0 auto 0.5rem;
  display: block;
}

.exp-hdot-current {
  background: var(--orange);
  box-shadow: 0 0 16px var(--orange-strong), 0 0 0 4px rgba(var(--orange-rgb),0.15);
  animation: pulse 1s infinite;
}

.exp-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  transition: color 0.25s;
}

.exp-company {
  font-size: 0.75rem;
  color: var(--orange);
  font-weight: 700;
  margin-top: 0.8rem;
}

.exp-date {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.exp-hyear {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  white-space: nowrap;
  padding: 0.15rem 0.45rem;
  background: rgba(var(--orange-rgb),0.06);
  border: 1px solid rgba(var(--orange-rgb),0.2);
  border-radius: 20px;
}

.exp-hyear-current {
  color: var(--orange);
  background: rgba(var(--orange-rgb),0.12);
  border-color: rgba(var(--orange-rgb),0.4);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.8rem;
  max-width: 640px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.25s;
}

.modal-overlay.open .modal-box {
  transform: translateY(0);
}

.modal-logo {
  position: absolute;
  top: 4.5rem;
  right: 1.8rem;
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 8px;
  opacity: 0.9;
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}

.modal-close:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.modal-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.modal-meta span {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.modal-meta .tag {
  background: rgba(var(--orange-rgb),0.1);
  color: var(--orange);
  border: 1px solid rgba(var(--orange-rgb),0.2);
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.modal-location {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.3rem;
}

.modal-company {
  font-size: 0.9rem;
  color: var(--orange);
  font-weight: 500;
  margin-bottom: 1rem;
  display: block;
}

.modal-desc {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.modal-desc li {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 1.2rem;
  position: relative;
}

.modal-desc li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-size: 0.7rem;
  top: 4px;
}

.modal-pub-link {
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--orange-glow); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--orange); }

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .hero {
    padding: 7rem 2rem 2rem;
    gap: 2rem;
  }

  .hero-content {
    flex-direction: column-reverse;
    gap: 3rem;
    text-align: center;
  }

  .hero-left { align-items: center; }
  .carousel-wrapper { justify-content: center; }
  .hero-cta { justify-content: center; }
  .tech-pills { justify-content: center; }

  .hero-right {
    width: 280px;
    height: 340px;
  }

  .image-frame { width: 220px; height: 270px; }
  .profile-placeholder { width: 220px; height: 270px; }

  .card-1 { right: -20px; top: 10px; }
  .card-2 { right: -20px; bottom: 20px; }
  .card-3 { left: -20px; bottom: 10px; display: none; }

  .orbit-ring { width: 320px; height: 320px; }

  .navbar { padding: 1rem 1.5rem; }
  .nav-links { display: none; }

  .section-container { padding: 0 2rem; }
  .experience { padding: 4rem 0; }
}

/* ===== PUBLICATIONS ===== */
.pub-block {
  margin-top: 6rem;
  text-align: center;
}

/* ===== TALKS & COMMUNITY ===== */
.talks-block {
  margin-top: 5rem;
  text-align: center;
}

.talks-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.talks-col {
  display: flex;
  flex-direction: column;
}

.talks-col-title {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.talk-item {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem 1.2rem;
  border-left: 2px solid var(--orange);
  background: var(--card-bg);
  border-radius: 0 12px 12px 0;
  text-align: left;
}

.talk-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  flex-shrink: 0;
  min-width: 90px;
}

.talk-type {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  background: rgba(var(--orange-rgb),0.1);
  border: 1px solid var(--orange-mid);
  padding: 2px 8px;
  border-radius: 4px;
}

.talk-date {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.talk-type-attendee {
  color: #aaa;
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.15);
}

.talk-type-workshop {
  color: #4fc3f7;
  background: rgba(79,195,247,0.1);
  border-color: rgba(79,195,247,0.3);
}

.talk-body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.talk-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}

.talk-venue {
  font-size: 0.75rem;
  color: var(--orange);
  font-weight: 600;
}

.talk-location-icon {
  font-size: 0.75rem;
  color: var(--text-muted);
  vertical-align: middle;
}

.talk-speakers {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.pub-title {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 2.5rem;
}

.pub-card {
  display: inline-flex;
  flex-direction: row;
  align-items: stretch;
  gap: 0;
  max-width: 920px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  text-align: left;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.25s ease;
}


.pub-card:hover {
  border-color: var(--orange);
  box-shadow: 0 0 0 2px var(--orange), 0 0 40px var(--orange-glow), 0 12px 40px rgba(0,0,0,0.5);
  transform: translateY(-4px) scale(1.08);
}

.pub-info-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,11,0.93);
  z-index: 0;
}

.pub-ieee-logo {
  position: absolute;
  bottom: 1rem;
  right: 1.7rem;
  height: 24px;
  width: auto;
  z-index: 1;
  mix-blend-mode: screen;
  opacity: 0.85;
}

.pub-info-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.pub-preview-col {
  width: 160px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: #1a1a1f;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.pub-preview-img {
  width: 160px;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.pub-link-hint {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--orange);
  opacity: 0.6;
  transition: opacity 0.2s;
  margin-top: 1.4rem;
}

.pub-card:hover .pub-link-hint {
  opacity: 1;
}

.pub-info {
  padding: 0.9rem 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pub-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.pub-venue {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--orange);
}

.pub-dot {
  color: var(--text-muted);
  font-size: 0.7rem;
}

.pub-location-text {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.pub-type {
  font-family: var(--mono);
  font-size: 0.63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--orange);
  background: rgba(var(--orange-rgb),0.1);
  border: 1px solid rgba(var(--orange-rgb),0.25);
  border-radius: 4px;
  padding: 0.15rem 0.6rem;
  margin-left: auto;
}

.pub-paper {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.pub-keywords {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.4rem;
  margin-top: 0.8rem;
}

.pub-kw {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.pub-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.2rem;
}

.pub-btn {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  text-decoration: none;
  background: var(--orange);
  color: #0a0a0b;
  transition: opacity 0.2s;
}

.pub-btn:hover { opacity: 0.85; }

.pub-btn-ghost {
  background: transparent;
  color: var(--orange);
  border: 1px solid rgba(var(--orange-rgb),0.4);
}

.pub-btn-ghost:hover {
  opacity: 1;
  border-color: var(--orange);
  background: rgba(var(--orange-rgb),0.07);
}

/* ===== CERT WIP BADGE ===== */
.cert-badge-wip-shell {
  position: relative;
  display: inline-block;
  cursor: pointer;
  animation: none !important;
}

.cert-wip-frame {
  position: relative;
  width: 185px;
  height: 185px;
}

.cert-badge-wip-img {
  width: 185px;
  height: 185px;
  object-fit: contain;
  filter: grayscale(0.7) brightness(0.35);
}

.cert-wip-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,10,11,0.35);
  border-radius: 4px;
}

.cert-wip-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(10,10,11,0.75);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
  padding: 9px 16px;
  white-space: nowrap;
}

.cert-wip-text {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #ccc;
}

.cert-wip-lines {
  display: block;
  width: 22px;
  height: 1px;
  background: rgba(255,255,255,0.3);
}

.cert-wip-badge {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(var(--orange-rgb),0.15);
  border: 1px solid rgba(var(--orange-rgb),0.5);
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
}

/* ===== PROJECTS ===== */
.projects-section {
  padding: 2rem 0 6rem;
  scroll-margin-top: 80px;
}

.projects-group {
  margin-bottom: 6rem;
}

.projects-group-title {
  font-size: 0.7rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 2.5rem;
  margin-top: 2.5rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  align-items: start;
}


.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.project-card--aws,
.project-card--azure,
.project-card--movierec,
.project-card--mlcourse {
  padding-top: 0;
  padding-bottom: 0.75rem;
}

.project-card-banner {
  width: calc(100% + 2rem);
  margin: 0 -1rem 0.75rem;
  height: 93px;
  background-image: url('assets/Amazon_web_services_main_image_2_84c24de2df.png');
  background-size: cover;
  background-position: center 35%;
  border-radius: 13px 13px 0 0;
  opacity: 0.75;
  flex-shrink: 0;
}

.project-card-banner--azure {
  background-image: url('assets/Azure_7ec77c356a.png') !important;
  background-position: 20% 19% !important;
}

/* University project banners — replace background-image with your photos */
.project-card--alzheimer,
.project-card--dental,
.project-card--eredes,
.project-card--giro,
.project-card--airroutes,
.project-card--chatbot,
.project-card--rollball,
.project-card--hotelreviews,
.project-card--autocar,
.project-card--scorbot,
.project-card--machinetranslation,
.project-card--poker,
.project-card--platformer,
.project-card--flushflow {
  padding-top: 0;
}

.project-card-banner--alzheimer,
.project-card-banner--dental,
.project-card-banner--eredes,
.project-card-banner--giro,
.project-card-banner--airroutes,
.project-card-banner--chatbot,
.project-card-banner--rollball,
.project-card-banner--hotelreviews,
.project-card-banner--autocar,
.project-card-banner--scorbot,
.project-card-banner--machinetranslation,
.project-card-banner--poker,
.project-card-banner--platformer,
.project-card-banner--mlcourse,
.project-card-banner--flushflow,
.project-card-banner--movierec {
  background-image: url('../assets/movie-poster-background-p5qblffj7cvswl5g.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.15);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-card-banner--alzheimer {
  background-image: url('assets/logos/paper-card.png');
  background-size: cover;
  background-position: center 50%;
}
.project-card-banner--alzheimer::after { content: ''; }
.project-card-banner--dental {
  background-image: url('assets/dentalclinic.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--dental::after { content: ''; }
.project-card-banner--eredes {
  background-image: url('assets/eredes.png');
  background-size: cover;
  background-position: center;
}
.project-card-banner--eredes::after { content: ''; }
.project-card-banner--giro {
  background-image: url('assets/giroditalia.png');
  background-size: 100% 100%;
  background-position: center;
}
.project-card-banner--giro::after { content: ''; }
.project-card-banner--airroutes {
  background-image: url('assets/airrotues.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--airroutes::after { content: ''; }
.project-card-banner--chatbot {
  background-image: url('assets/chatbor.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--chatbot::after { content: ''; }
.project-card-banner--rollball {
  background-image: url('assets/roll.png');
  background-size: cover;
  background-position: center;
}
.project-card-banner--rollball::after { content: ''; }
.project-card-banner--hotelreviews {
  background-image: url('assets/hotelreview.png');
  background-size: cover;
  background-position: center top;
}
.project-card-banner--hotelreviews::after { content: ''; }
.project-card-banner--autocar {
  background-image: url('assets/car.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--autocar::after { content: ''; }
.project-card-banner--scorbot {
  background-image: url('assets/logos/arm-draw-banner.png');
  background-size: cover;
  background-position: center 55%;
}
.project-card-banner--scorbot::after { content: ''; }
.project-card-banner--robotlocalization {
  background-image: url('assets/logos/maps.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--robotlocalization::after { content: ''; }
.project-card-banner--machinetranslation {
  background-image: url('assets/machinetranslation.png');
  background-size: cover;
  background-position: center 10%;
}
.project-card-banner--machinetranslation::after { content: ''; }
.project-card-banner--poker {
  background-image: url('assets/poker.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--poker::after { content: ''; }
.project-card-banner--platformer {
  background-image: url('assets/logos/lsatpage.png');
  background-size: cover;
  background-position: center;
}
.project-card-banner--platformer::after { content: ''; }
.project-card-banner--mlcourse {
  background-image: url('assets/ml.png');
  background-size: cover;
  background-position: center 0%;
}
.project-card-banner--mlcourse::after { content: ''; }
.project-card-banner--flushflow {
  background-image: url('assets/logos/flushflow.png');
  background-size: cover;
  background-position: center 46%;
}
.project-card-banner--flushflow::after { content: ''; }
.project-card-banner--movierec {
  background-image: url('assets/movie-poster-background-p5qblffj7cvswl5g.jpg');
  background-size: cover;
  background-position: center;
}
.project-card-banner--movierec::after { content: ''; }

.project-card-banner--mllegends {
  background-image: url('assets/logos/ml-esports.png');
  background-size: cover;
  background-position: center;
}
.project-card-banner--mllegends::after { content: ''; }

.flushflow-evaluator {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  padding: 10px 14px;
  border-left: 2px solid var(--accent);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 6px 6px 0;
}
.evaluator-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
}
.evaluator-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.evaluator-bio {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ===== PROJECT CAROUSEL ===== */
.proj-carousel {
  position: relative;
  overflow: hidden;
}

.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.proj-carousel-viewport {
  width: 100%;
}

.proj-carousel-track {
  display: flex;
  gap: 1.5rem;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.proj-carousel-track .project-card {
  flex: none;
  min-width: 0;
  opacity: 0.4;
  transform: scale(0.96);
  transition: opacity 0.35s, transform 0.35s, border-color 0.2s, box-shadow 0.2s;
}

.proj-carousel-track .project-card.carousel-active {
  opacity: 1;
  transform: scale(1);
}

.proj-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
  z-index: 10;
}

.proj-carousel-prev { left: 0.5rem; }
.proj-carousel-next { right: 0.5rem; }

.proj-carousel-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--orange-faint);
}

.proj-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1rem;
}

.proj-carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.2s, transform 0.2s;
  cursor: pointer;
}

.proj-carousel-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

.project-card:hover {
  border-color: rgba(var(--orange-rgb),0.6);
  box-shadow: 0 8px 32px rgba(var(--orange-rgb),0.18), 0 0 0 1px rgba(var(--orange-rgb),0.15);
  transform: translateY(-4px);
}

.project-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  min-height: 2.2rem;
}

/* ===== PROJECT MODAL ===== */
.modal-box--proj {
  max-width: 820px;
}

.proj-modal-header-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.proj-modal-status {
  display: inline-block;
  margin-bottom: 0;
}

.proj-modal-team {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.55;
}

.proj-modal-team svg { flex-shrink: 0; }

.proj-modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 1rem;
}


.proj-modal-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 1.25rem;
}

.proj-modal-screenshots {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  justify-content: center;
}

.proj-modal-screenshots .proj-modal-screenshot {
  margin: 0;
  width: 42%;
}

.proj-modal-screenshot {
  width: 28%;
  display: block;
  margin: 0 auto 1.25rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.proj-modal-paper-link {
  display: block;
  width: fit-content;
  margin: 1rem auto 0.5rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--orange);
  text-decoration: none;
  border: 1px solid rgba(var(--orange-rgb),0.4);
  border-radius: 8px;
  padding: 0.4rem 0.9rem;
  transition: background 0.2s, border-color 0.2s;
}

.proj-modal-paper-link:hover {
  background: var(--orange-faint);
  border-color: var(--orange);
}

.proj-modal-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

/* Tech stack grid inside modal — compact flex */
#projModalContent .tech-stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: flex-start;
}

#projModalContent .project-tech {
  flex: 0 0 auto;
  min-width: 150px;
}

#projModalContent .tech-category {
  font-size: 0.65rem;
  opacity: 1;
}

#projModalContent .tech-full {
  flex: 0 0 100%;
}

.proj-modal-tech-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}

/* Hide details toggle on card — modal replaces it */
.tech-stack-details > summary,
.tech-stack-close {
  display: none;
}

.tech-stack-details {
  margin-top: 0;
}

/* Card clickable hint */
.project-card {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(var(--orange-rgb),0.04);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
  z-index: 0;
}

.project-card:hover::before {
  opacity: 1;
}

.project-card::after {
  content: 'Click to view tech stack';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(var(--orange-rgb),0.18) 0%, transparent 100%);
  color: var(--orange);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 1.5rem 1rem 0.65rem;
  text-align: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  z-index: 1;
}

.project-card:hover::after {
  opacity: 1;
  transform: translateY(0);
}

.project-icons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.4rem;
}

.project-tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.project-status {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 20px;
}

.project-status.production {
  background: rgba(var(--orange-rgb),0.12);
  color: var(--orange);
  border: 1px solid var(--orange-mid);
}

.project-status.thesis {
  background: rgba(139,92,246,0.12);
  color: #a78bfa;
  border: 1px solid rgba(139,92,246,0.3);
}

.project-status.academic {
  background: rgba(91,155,213,0.12);
  color: #5b9bd5;
  border: 1px solid rgba(91,155,213,0.3);
}

.project-status.in-progress {
  background: rgba(34,197,94,0.10);
  color: #4ade80;
  border: 1px solid rgba(34,197,94,0.28);
}

.project-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.project-desc {
  font-size: 0.795rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.project-paper-link {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--orange);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: opacity 0.2s;
}

.project-paper-link:hover { opacity: 0.7; }

.project-tech {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-top: 0.25rem;
}

.tech-category {
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--orange);
  opacity: 0.75;
}

.project-tech .tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tech-icon {
  width: 16px;
  height: 16px;
  object-fit: contain;
  vertical-align: middle;
  margin-right: 0.3rem;
  flex-shrink: 0;
}

/* Architecture characteristic tags */
.arch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.6rem;
  margin-bottom: 0.1rem;
}
.arch-tags span {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--orange);
  background: rgba(255, 160, 50, 0.08);
  border: 1px solid rgba(255, 160, 50, 0.25);
  border-radius: 4px;
  padding: 0.15rem 0.45rem;
  letter-spacing: 0.04em;
}

/* Tech stack collapsible */
.tech-stack-details {
  margin-top: 0.75rem;
}

.tech-stack-details summary {
  list-style: none;
}
.tech-stack-details summary::-webkit-details-marker {
  display: none;
}

.tech-stack-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--orange);
  opacity: 0.8;
  user-select: none;
  transition: opacity 0.2s;
}
.tech-stack-toggle:hover {
  opacity: 1;
}

.toggle-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}
.tech-stack-details[open] .toggle-arrow {
  transform: rotate(180deg);
}

.tech-stack-close {
  display: block;
  width: 100%;
  margin-top: 1.75rem;
  background: none;
  border: none;
  border-top: 1px solid var(--border);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--orange);
  opacity: 0.7;
  padding: 0.6rem 0 0 0;
  text-align: center;
  transition: opacity 0.2s;
}
.tech-stack-close:hover {
  opacity: 1;
}

.tech-stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem 1.25rem;
  margin-top: 0.6rem;
}

.tech-full {
  grid-column: span 2;
}

.tech-service {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  margin-top: 0.4rem;
}

.tech-service-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.75rem;
  transition: border-color 0.2s, color 0.2s;
}

.tech-service-name {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.tech-service-name:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.tech-pills-sub {
  padding-left: 0.5rem;
  flex-direction: column;
  gap: 0.15rem;
}

.tech-pills-sub span {
  background: none !important;
  border: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  font-size: 0.68rem;
  color: var(--text-muted);
  opacity: 0.85;
}

.tech-pills-sub span::before {
  content: "–\00a0";
  opacity: 0.5;
}

/* ===== CERTIFICATIONS ===== */
.certs-section {
  padding: 2rem 0 6rem;
  scroll-margin-top: 80px;
}

.certs-sub {
  font-size: 0.7rem;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 1.2rem;
  margin-top: 2.5rem;
}

/* Official cert card */
.certs-official {
  display: flex;
  gap: 7rem;
  align-items: flex-start;
  margin-top: 1.2rem;
}

.cert-badge-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
}

.cert-badge-hint {
  font-size: 0.68rem;
  font-family: var(--mono);
  color: var(--orange);
  opacity: 0.6;
  transition: opacity 0.2s;
}

.cert-badge-wrapper:hover .cert-badge-hint {
  opacity: 1;
}

.cert-wip-locked {
  color: var(--orange) !important;
  opacity: 0.7;
}

.cert-wip-unlocked {
  color: var(--text-muted) !important;
  font-size: 0.65rem !important;
  opacity: 0.5;
  margin-top: 0 !important;
}

.cert-badge-dates {
  font-size: 0.68rem;
  font-family: var(--mono);
  color: var(--text-muted);
  margin-top: 1.4rem;
}

@keyframes certHeartbeat {
  0%, 100% { transform: scale(1);    filter: drop-shadow(0 0 18px rgba(var(--orange-rgb),0.5)) brightness(1.15); }
  50%       { transform: scale(1.04); filter: drop-shadow(0 0 32px rgba(var(--orange-rgb),0.75)) brightness(1.25); }
}

.cert-badge-link {
  display: inline-block;
  height: 185px;
  animation: certHeartbeat 2.8s ease-in-out infinite;
}

.cert-badge-link:hover {
  animation-play-state: paused;
  filter: drop-shadow(0 0 36px rgba(var(--orange-rgb),0.6));
}

.cert-badge {
  width: 185x;
  height: 185px;
  object-fit: contain;
  display: block;
}

.cert-official-info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.cert-issuer {
  font-size: 0.7rem;
  font-family: var(--mono);
  color: var(--orange);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.cert-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin: 0;
}

.cert-dates {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--mono);
}

.cert-verify {
  font-size: 0.7rem;
  color: var(--orange);
  font-family: var(--mono);
  margin-top: 0.4rem;
  opacity: 0.8;
}

/* Course cards grid */

/* ===== CERTS SLIDER ===== */
.certs-slider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}

.certs-slider-viewport {
  flex: 1;
  overflow: hidden;
}

.certs-slider-track {
  display: flex;
  gap: 0;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.certs-slider-page {
  flex: 0 0 100%;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.9rem;
}

.certs-slider-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text-muted);
  font-size: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
  line-height: 1;
  padding: 0;
}

.certs-slider-btn:hover {
  background: rgba(var(--orange-rgb),0.1);
  border-color: var(--orange);
  color: var(--orange);
}

.certs-slider-btn:disabled {
  opacity: 0.25;
  cursor: default;
  pointer-events: none;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.9rem;
}

.cert-card-link {
  text-decoration: none;
  cursor: pointer;
  position: relative;
}

.cert-link-arrow {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--orange);
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity 0.2s, transform 0.2s;
}

.cert-card-link:hover .cert-link-arrow {
  opacity: 1;
  transform: translate(2px, -2px);
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  transition: border-color 0.2s, transform 0.2s;
}

.cert-card:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.cert-icon {
  font-size: 2.4rem;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.cert-icon-lg {
  font-size: 2.8rem;
  flex-shrink: 0;
  width: 64px;
  text-align: center;
}

.cert-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.cert-card .exp-logo {
  margin: 0;
  flex-shrink: 0;
}

.cert-dual-logo {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
  width: 64px;
  align-items: center;
}

.cert-dual-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 6px;
}

.cert-text-icon {
  font-size: 0.6rem;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--orange);
  background: rgba(var(--orange-rgb),0.1);
  border: 1px solid rgba(var(--orange-rgb),0.2);
  border-radius: 6px;
  padding: 0.3rem 0.4rem;
  line-height: 1.2;
  text-align: center;
}

.cert-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.cert-card-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  margin: 0;
  line-height: 1.3;
}

.cert-card-issuer {
  font-size: 0.65rem;
  color: var(--orange);
  font-family: var(--mono);
  font-weight: 700;
}

.cert-card-date {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-family: var(--mono);
}

/* ===== TECH STACK ===== */
.techstack {
  padding: 6rem 0;
}

/* Marquee rows */
.ts-rows {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.ts-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  max-width: 600px;
}

.ts-row-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
  width: 140px;
  flex-shrink: 0;
  text-align: right;
}

.ts-marquee {
  width: 320px;
  flex-shrink: 0;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, black 15%, black 85%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 15%, black 85%, transparent 100%);
}

.ts-marquee:hover .ts-marquee-inner {
  animation-play-state: paused;
}

.ts-marquee-inner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: max-content;
  animation: ts-scroll 18s linear infinite;
}

.ts-marquee-rev .ts-marquee-inner {
  animation-name: ts-scroll-rev;
}

@keyframes ts-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes ts-scroll-rev {
  from { transform: translateX(-50%); }
  to   { transform: translateX(0); }
}

.ts-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  min-width: 70px;
  flex-shrink: 0;
  transition: border-color 0.2s, transform 0.2s;
  cursor: default;
}

.ts-chip:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.ts-chip i {
  font-size: 1.6rem;
  line-height: 1;
}

/* Pinecone SVG is black — invert in dark mode, remove in light mode */
img[src*="pinecone.svg"] { filter: invert(1); }
body.light img[src*="pinecone.svg"] { filter: none; }

.ts-chip span {
  font-size: 0.58rem;
  color: var(--text-muted);
  text-align: center;
  font-family: var(--mono);
  white-space: nowrap;
}

.ts-text-chip i {
  display: none;
}

.ts-text-chip span {
  font-size: 0.65rem;
  padding: 0.3rem 0;
}

/* ── Contact Section ── */
.contact-section {
  padding: 6rem 2rem;
  scroll-margin-top: 80px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.2rem 1.6rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.contact-card:hover {
  border-color: rgba(var(--orange-rgb),0.5);
  box-shadow: 0 0 24px rgba(var(--orange-rgb),0.1);
  transform: translateX(4px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(var(--orange-rgb),0.1);
  border: 1px solid rgba(var(--orange-rgb),0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--orange);
  flex-shrink: 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  flex: 1;
}

.contact-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.contact-arrow {
  font-size: 1.1rem;
  color: var(--orange);
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s;
}

.contact-card:hover .contact-arrow {
  opacity: 1;
  transform: translate(2px, -2px);
}

/* ── Beyond the Code ── */
.beyond-section {
  padding: 6rem 6rem;
  max-width: 1400px;
  margin: 0 auto;
}

.beyond-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 200px 200px;
  gap: 1.4rem;
  margin-top: 2.5rem;
}

/* Card positions */
.beyond-card-queen     { grid-column: 1; grid-row: 1 / 3; }
.beyond-card-basket    { grid-column: 2; grid-row: 1; }
.beyond-card-friends   { grid-column: 3; grid-row: 1; }
.beyond-card-games     { grid-column: 2 / 4; grid-row: 2; }

.beyond-card {
  position: relative;
  border-radius: 20px;
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  border: 1px solid transparent;
  background: var(--card-bg);
  transform-style: preserve-3d;
  will-change: transform;
  transition: box-shadow 0.3s;
}

/* Animated rotating gradient border via outline layer */
.beyond-card::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  z-index: -1;
  background: conic-gradient(from var(--angle, 0deg), transparent 60%, rgba(var(--orange-rgb),0.7) 80%, transparent 100%);
  animation: borderSpin 4s linear infinite;
  opacity: 0;
  transition: opacity 0.3s;
}

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

@keyframes borderSpin {
  to { --angle: 360deg; }
}

.beyond-card:hover::after {
  opacity: 1;
}

/* Spotlight glow that follows mouse (set via JS) */
.beyond-card .card-spotlight {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  background: radial-gradient(circle 120px at var(--mx, 50%) var(--my, 50%), rgba(var(--orange-rgb),0.12), transparent 70%);
}

.beyond-card:hover .card-spotlight {
  opacity: 1;
}

/* Watermark emoji */
.beyond-card::before {
  content: attr(data-emoji);
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 7rem;
  opacity: 0.1;
  line-height: 1;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}

.beyond-card:hover::before {
  opacity: 0.22;
  transform: scale(1.15) rotate(-8deg);
}

/* Per-card accent colours */
.beyond-card-queen   { border-color: rgba(var(--orange-rgb),0.25); background: linear-gradient(145deg, #1a1200 0%, var(--card-bg) 60%); }
.beyond-card-basket  { border-color: rgba(255,100,30,0.25); background: linear-gradient(145deg, #1a0a00 0%, var(--card-bg) 70%); }
.beyond-card-friends { border-color: rgba(100,200,100,0.2); background: linear-gradient(145deg, #001a08 0%, var(--card-bg) 70%); }
.beyond-card-games   { border-color: rgba(100,150,255,0.2); background: linear-gradient(145deg, #00081a 0%, var(--card-bg) 60%); flex-direction: row; align-items: center; gap: 2rem; justify-content: flex-start; }

.beyond-card-games .beyond-text {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.beyond-card-games::before {
  top: 50%;
  right: 2rem;
  transform: translateY(-50%);
  font-size: 8rem;
  opacity: 0.25;
  z-index: 0;
}

.beyond-card-games .beyond-text {
  position: relative;
  z-index: 1;
}

.beyond-emoji {
  font-size: 1.6rem;
  line-height: 1;
  flex-shrink: 0;
}

.beyond-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.beyond-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Fun Fact ── */
.funfact-wrap {
  margin-top: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.funfact-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: transparent;
  border: 1px dashed rgba(var(--orange-rgb),0.5);
  border-radius: 10px;
  padding: 0.65rem 1.1rem;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  width: 100%;
}

.funfact-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(var(--orange-rgb),0.05);
}

.funfact-icon { font-size: 1rem; }

.funfact-label { flex: 1; text-align: left; }

.funfact-chevron {
  font-size: 1rem;
  transition: transform 0.3s;
  color: var(--orange);
}

.funfact-wrap.open .funfact-chevron {
  transform: rotate(180deg);
}

.funfact-reveal {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 0.5rem;
  background: rgba(var(--orange-rgb),0.06);
  border: 1px solid rgba(var(--orange-rgb),0.2);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  overflow: hidden;
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
}

.funfact-wrap.open .funfact-reveal {
  max-height: 120px;
  opacity: 1;
  padding: 0.9rem 1.1rem;
}

.funfact-tv-icon { flex-shrink: 0; margin-top: 2px; color: var(--orange); }

.funfact-reveal strong { color: var(--text); }

/* ── Light Mode Preview ── */
.light-preview-wrap {
  max-width: 800px;
  margin: 4rem auto 6rem;
  padding: 0 2rem;
}

.light-preview-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
  opacity: 0.6;
}

.light-preview {
  background: #f0f0f0;
  border-radius: 16px;
  padding: 1.5rem;
  border: 1px solid #ddd;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  font-family: var(--sans);
  box-shadow: 0 4px 40px rgba(0,0,0,0.15);
}

.lp-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-radius: 10px;
  padding: 0.7rem 1.2rem;
  box-shadow: 0 1px 8px rgba(0,0,0,0.08);
}

.lp-logo {
  font-weight: 900;
  font-size: 1rem;
  color: #111;
}

.lp-nav-links {
  display: flex;
  gap: 1.4rem;
  font-size: 0.8rem;
  color: #555;
}

.lp-hero {
  background: #fff;
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

.lp-tag {
  font-size: 0.72rem;
  color: #FF9900;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.lp-name {
  font-size: 1.4rem;
  font-weight: 900;
  color: #111;
  margin: 0 0 0.5rem;
}

.lp-bio {
  font-size: 0.78rem;
  color: #666;
  line-height: 1.5;
  margin: 0;
  max-width: 340px;
}

.lp-card {
  background: #111;
  border-radius: 10px;
  padding: 0.8rem 1.1rem;
  flex-shrink: 0;
}

.lp-card-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.lp-card-sub {
  font-size: 0.65rem;
  color: #FF9900;
}

.lp-section-cards {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.8rem;
}

.lp-scard {
  background: #fff;
  border-radius: 10px;
  padding: 1rem;
  border-left: 3px solid #FF9900;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

.lp-scard-tag {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #FF9900;
  margin-bottom: 0.3rem;
}

.lp-scard-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #111;
}

.lp-scard-sub {
  font-size: 0.7rem;
  color: #888;
  margin-top: 0.15rem;
}

/* ===== LANGUAGES ===== */
.lang-section {
  padding: 5rem 1.5rem;
}

.lang-grid {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  justify-content: center;
}

.lang-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.6rem 2rem;
  flex: 1;
  max-width: 200px;
  text-align: center;
}

.lang-flag {
  font-size: 1.7rem;
  border-radius: 3px;
  flex-shrink: 0;
}

.lang-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.lang-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.7rem;
  border-radius: 99px;
  background: rgba(var(--orange-rgb), 0.12);
  color: var(--orange);
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.lang-badge-learning {
  background: rgba(var(--orange-rgb), 0.07);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-name {
  font-weight: 600;
  color: var(--text);
}

.footer-sep {
  opacity: 0.4;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--orange);
}

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, box-shadow 0.2s;
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.scroll-top:hover {
  box-shadow: 0 0 16px rgba(var(--orange-rgb), 0.35);
  border-color: var(--orange);
}


/* ===== TECH STACK PANEL ===== */
.ts-btn-wrap {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

.ts-open-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2.2rem;
  background: var(--orange-faint);
  border: 1.5px solid var(--orange);
  border-radius: 8px;
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 0 18px rgba(var(--orange-rgb),0.15);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.ts-open-btn:hover {
  background: rgba(var(--orange-rgb),0.16);
  box-shadow: 0 0 28px rgba(var(--orange-rgb),0.35);
  transform: translateY(-1px);
}
.ts-btn-icon { font-size: 1rem; }

.ts-panel {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.0);
  z-index: 900;
  display: flex;
  flex-direction: column;
  pointer-events: none;
  transition: background 0.35s;
}
.ts-panel.open {
  background: rgba(0,0,0,0.85);
  pointer-events: all;
}
.ts-panel-inner {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  width: min(1100px, calc(100% - 12rem));
  height: 92vh;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 20px 20px 0 0;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.ts-panel.open .ts-panel-inner {
  transform: translateX(-50%) translateY(0);
}
.ts-panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 2rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ts-search-wrap {
  padding: 1rem 2.5rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ts-search-inner {
  position: relative;
  display: flex;
  align-items: center;
}
.ts-search-icon {
  position: absolute;
  left: 0.85rem;
  color: var(--text-muted);
  pointer-events: none;
  flex-shrink: 0;
}
.ts-search {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 1rem 0.6rem 2.4rem;
  color: #fff;
  font-size: 0.9rem;
  font-family: var(--mono);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.ts-search::placeholder { color: var(--text-muted); }
.ts-search:focus-visible {
  border-color: var(--orange);
  box-shadow: 0 0 10px rgba(var(--orange-rgb),0.2);
}

.ts-panel-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  margin: 0.3rem 0 0;
}
.ts-panel-close {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.2s, color 0.2s;
}
.ts-panel-close:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.ts-panel-body {
  overflow-y: auto;
  padding: 2rem 2.5rem 3rem;
  flex: 1;
}
.ts-agg-grid {
  position: relative;
}
.ts-agg-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ts-agg-block .tech-category {
  font-size: 0.71rem;
}

/* ===== OWL MASCOT ===== */
@keyframes owl-slide-in {
  from { transform: translateX(140px); opacity: 0; }
  to   { transform: translateX(0);     opacity: 1; }
}
@keyframes owl-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}
@keyframes owl-fade-out {
  to { opacity: 0; transform: translateY(10px); pointer-events: none; }
}
@keyframes bubble-pop {
  0%   { transform: scale(0.6); opacity: 0; }
  70%  { transform: scale(1.05); }
  100% { transform: scale(1);    opacity: 1; }
}

#owl-mascot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9998;
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 10px;
  opacity: 0;
  pointer-events: none;
}
#owl-svg {
  width: 100px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.5));
  cursor: pointer;
  flex-shrink: 0;
}
#owl-bubble {
  background: #1e1e24;
  border: 1px solid rgba(var(--orange-rgb),0.35);
  color: #e8e8ef;
  font-size: 0.7rem;
  font-family: 'Inter', sans-serif;
  padding: 8px 12px;
  border-radius: 10px;
  border-bottom-right-radius: 2px;
  max-width: 160px;
  text-align: left;
  line-height: 1.45;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  animation: bubble-pop 0.4s cubic-bezier(0.34,1.56,0.64,1) 0.5s both;
  margin-bottom: 16px;
  cursor: pointer;
}