/* ═══════════════════════════════════════════════════════════════
   EISHAAN KHATRI — PORTFOLIO STYLESHEET v2
   "The Shapeshifter" — Brave-compatible, dramatically elevated
   ═══════════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #e2e8f0;
  background: #050810;
  overflow-x: hidden;
  line-height: 1.7;
}

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── SECTION BASE ──────────────────────────────────────────── */
.section {
  min-height: 100vh;
  position: relative;
  padding: 8rem 0;
  overflow: hidden;
}

.section__bg-pattern {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.section > .container {
  position: relative;
  z-index: 1;
}

/* ── SECTION TITLES ────────────────────────────────────────── */
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  margin-bottom: 4rem;
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, currentColor 0%, transparent 100%);
  opacity: 0.15;
  margin-left: 1rem;
}

.section-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  opacity: 0.35;
  font-weight: 400;
}

/* ── ANIMATIONS ────────────────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate="fade-right"] { transform: translateX(-50px); }
[data-animate="fade-left"] { transform: translateX(50px); }
[data-animate="zoom-in"] { transform: scale(0.85); opacity: 0; }

[data-animate].visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* ── TAGS ──────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s ease;
}

.tag:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

/* ═══════════════════════════════════════════════════════════════
   SIDE NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.side-nav {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.nav-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.25);
  transition: all 0.4s ease;
  position: relative;
  cursor: pointer;
}

.nav-dot::after {
  content: attr(data-label);
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  /* Brave-safe: no backdrop-filter, solid bg instead */
  background: rgba(10,12,25,0.95);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  transform: translateY(-50%) translateX(5px);
}

.nav-dot:hover::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

.nav-dot.active {
  background: #7c3aed;
  border-color: #7c3aed;
  transform: scale(1.4);
  box-shadow: 0 0 12px rgba(124,58,237,0.6);
}

/* Theme-specific active colors */
[data-active-theme="neural"] .nav-dot.active { background: #059669; border-color: #059669; box-shadow: 0 0 12px rgba(5,150,105,0.6);}
[data-active-theme="cyberpunk"] .nav-dot.active { background: #ec4899; border-color: #ec4899; box-shadow: 0 0 12px rgba(236,72,153,0.6);}
[data-active-theme="library"] .nav-dot.active { background: #d97706; border-color: #d97706; box-shadow: 0 0 12px rgba(217,119,6,0.6);}
[data-active-theme="lab"] .nav-dot.active { background: #3b82f6; border-color: #3b82f6; box-shadow: 0 0 12px rgba(59,130,246,0.6);}
[data-active-theme="fluid"] .nav-dot.active { background: #06b6d4; border-color: #06b6d4; box-shadow: 0 0 12px rgba(6,182,212,0.6);}
[data-active-theme="trophy"] .nav-dot.active { background: #fbbf24; border-color: #fbbf24; box-shadow: 0 0 12px rgba(251,191,36,0.6);}
[data-active-theme="garden"] .nav-dot.active { background: #84cc16; border-color: #84cc16; box-shadow: 0 0 12px rgba(132,204,22,0.6);}
[data-active-theme="crystal"] .nav-dot.active { background: #c084fc; border-color: #c084fc; box-shadow: 0 0 12px rgba(192,132,252,0.6);}

/* ── MOBILE HEADER ─────────────────────────────────────────── */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1001;
  padding: 1rem 1.5rem;
  /* Brave-safe: solid bg fallback, no backdrop-filter reliance */
  background: rgba(5,8,16,0.92);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mobile-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  background: linear-gradient(135deg, #7c3aed, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: #e2e8f0;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5,8,16,0.97);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.mobile-menu.open { display: flex; }

.mobile-link {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 500;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.mobile-link:hover { opacity: 1; }

@media (max-width: 768px) {
  .mobile-header { display: flex; }
  .side-nav { display: none; }
  .section { padding: 6rem 0 4rem; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 1: HERO — COSMOS THEME (ELEVATED)
   ═══════════════════════════════════════════════════════════════ */
.section--hero {
  background: #050810;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-direction: column;
  min-height: 100vh;
  padding: 0;
}

/* Layered cosmic background — no canvas dependency */
.section--hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 60%, rgba(124,58,237,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 85% 30%, rgba(236,72,153,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 80%, rgba(6,182,212,0.08) 0%, transparent 50%);
  z-index: 0;
}

/* Floating orbs for depth */
.section--hero::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  top: 10%;
  right: -10%;
  animation: floatOrb 20s ease-in-out infinite;
  z-index: 0;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.1); }
  66% { transform: translate(20px, -20px) scale(0.95); }
}

#particleCanvas {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 0 2rem;
}

/* — Avatar — */
.hero__avatar { margin-bottom: 2.5rem; }

.avatar-ring {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: conic-gradient(from 0deg, #7c3aed, #ec4899, #06b6d4, #7c3aed);
  padding: 3px;
  animation: avatarSpin 10s linear infinite, avatarPulse 4s ease-in-out infinite;
}

.avatar-monogram {
  width: 124px;
  height: 124px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  background: #0a0d18;
  color: #e2e8f0;
  letter-spacing: 0.05em;
}

@keyframes avatarSpin {
  to { background: conic-gradient(from 360deg, #7c3aed, #ec4899, #06b6d4, #7c3aed); }
}

@keyframes avatarPulse {
  0%, 100% { box-shadow: 0 0 25px rgba(124,58,237,0.4), 0 0 70px rgba(124,58,237,0.15); }
  50% { box-shadow: 0 0 35px rgba(236,72,153,0.5), 0 0 90px rgba(236,72,153,0.2); }
}

/* — Name — */
.hero__name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(3.5rem, 9vw, 8rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.name-line {
  display: block;
  opacity: 0;
  animation: nameReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.name-line:nth-child(2) { animation-delay: 0.3s; }

.name-line--accent {
  background: linear-gradient(90deg, #7c3aed, #a855f7, #ec4899, #f472b6, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: #ec4899; /* Brave fallback color */
  background-size: 300% auto;
  animation: nameReveal 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards,
             gradientShift 8s ease-in-out infinite;
}

@keyframes nameReveal {
  from { opacity: 0; transform: translateY(40px) rotateX(10deg); }
  to { opacity: 1; transform: translateY(0) rotateX(0deg); }
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* — Subtitle — */
.hero__subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.5);
  min-height: 1.8rem;
  margin-bottom: 2rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: -0.01em;
}

.hero__subtitle .cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: #a855f7;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes blink { 50% { opacity: 0; } }

/* — Badges — */
.hero__badges {
  display: flex;
  gap: 0.7rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeIn 1s 1.5s forwards;
}

.hero-badge {
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  /* Brave-safe: solid background, no backdrop-filter */
  background: rgba(124,58,237,0.12);
  border: 1px solid rgba(124,58,237,0.25);
  color: rgba(255,255,255,0.85);
}

/* — CTA Buttons — */
.hero__cta {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeIn 1s 1.8s forwards;
}

.btn {
  padding: 0.85rem 2.2rem;
  border-radius: 100px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, #7c3aed, #ec4899);
  color: white;
  box-shadow: 0 4px 25px rgba(124,58,237,0.35);
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #a855f7, #f472b6);
  opacity: 0;
  transition: opacity 0.35s;
}

.btn--primary:hover::before { opacity: 1; }

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 40px rgba(124,58,237,0.5);
}

.btn span, .btn--primary span { position: relative; z-index: 1; }

.btn--ghost {
  background: rgba(255,255,255,0.04);
  color: #e2e8f0;
  border: 1px solid rgba(255,255,255,0.15);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.35);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(25px); }
  to { opacity: 1; transform: translateY(0); }
}

/* — Scroll Indicator — */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeIn 1s 2.5s forwards;
  z-index: 2;
}

.scroll-text {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.3;
  font-weight: 500;
}

.scroll-arrow {
  width: 22px;
  height: 34px;
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  position: relative;
}

.scroll-arrow::after {
  content: '';
  width: 4px;
  height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  position: absolute;
  left: 50%;
  top: 6px;
  transform: translateX(-50%);
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%, 100% { top: 6px; opacity: 1; }
  50% { top: 16px; opacity: 0.2; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 2: ABOUT — NEURAL THEME
   ═══════════════════════════════════════════════════════════════ */
.section--about {
  background: #050810;
  position: relative;
}

.neural-grid {
  background:
    radial-gradient(ellipse 60% 50% at 20% 30%, rgba(5,150,105,0.1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 70%, rgba(52,211,153,0.07) 0%, transparent 60%);
}

/* Decorative floating accent */
.section--about::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(5,150,105,0.08) 0%, transparent 70%);
  top: 20%;
  left: -10%;
  z-index: 0;
  animation: floatOrb 25s ease-in-out infinite reverse;
}

.section--about .section-title { color: #34d399; }
.section--about .section-number { color: rgba(5,150,105,0.4); }

.about__layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about__text p {
  margin-bottom: 1.2rem;
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
}

.about__intro {
  font-size: 1.25rem !important;
  color: rgba(255,255,255,0.9) !important;
  line-height: 1.8;
}

.about__highlight {
  padding: 1.2rem 1.5rem;
  border-left: 3px solid #059669;
  background: rgba(5,150,105,0.06);
  border-radius: 0 12px 12px 0;
}

.about__text strong { color: #34d399; }
.about__text em { color: #6ee7b7; font-style: normal; }

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: rgba(5,150,105,0.06);
  border: 1px solid rgba(5,150,105,0.15);
  border-radius: 16px;
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(5,150,105,0.3), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(5,150,105,0.15);
}

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

.stat-number {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #34d399;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.75rem;
  opacity: 0.5;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .about__layout { grid-template-columns: 1fr; gap: 2rem; }
  .about__stats { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 480px) {
  .about__stats { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 3: EXPERIENCE — CYBERPUNK THEME
   ═══════════════════════════════════════════════════════════════ */
.section--experience {
  background: #050810;
}

.cyber-lines {
  background:
    radial-gradient(ellipse 50% 60% at 5% 50%, rgba(236,72,153,0.08) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 95% 30%, rgba(6,182,212,0.06) 0%, transparent 50%),
    /* Subtle grid overlay for cyberpunk feel */
    linear-gradient(rgba(236,72,153,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236,72,153,0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
}

.section--experience .section-title { color: #f9a8d4; }
.section--experience .section-number { color: rgba(236,72,153,0.35); }

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, #ec4899, #8b5cf6, #06b6d4);
  box-shadow: 0 0 15px rgba(236,72,153,0.3), 0 0 5px rgba(236,72,153,0.5);
}

.timeline__item {
  position: relative;
  padding-left: 75px;
  margin-bottom: 3rem;
}

.timeline__marker {
  position: absolute;
  left: 22px;
  top: 1.5rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ec4899;
  border: 3px solid #0a0d18;
  box-shadow: 0 0 20px rgba(236,72,153,0.6), inset 0 0 4px rgba(255,255,255,0.3);
  z-index: 1;
  animation: markerGlow 3s ease-in-out infinite;
}

@keyframes markerGlow {
  0%, 100% { box-shadow: 0 0 15px rgba(236,72,153,0.5); }
  50% { box-shadow: 0 0 25px rgba(236,72,153,0.8), 0 0 50px rgba(236,72,153,0.3); }
}

.timeline__card {
  background: rgba(236,72,153,0.03);
  border: 1px solid rgba(236,72,153,0.12);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

/* Animated border gradient on hover */
.timeline__card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(236,72,153,0.4), rgba(6,182,212,0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.timeline__card:hover::before { opacity: 1; }

.timeline__card:hover {
  background: rgba(236,72,153,0.05);
  box-shadow: 0 0 40px rgba(236,72,153,0.08);
  transform: translateX(6px);
}

.timeline__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.timeline__role {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: #f9a8d4;
}

.timeline__company {
  font-size: 1rem;
  color: rgba(255,255,255,0.65);
  margin-top: 0.2rem;
}

.timeline__mentor {
  font-size: 0.85rem;
  color: rgba(6,182,212,0.8);
  font-style: italic;
}

.timeline__date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #ec4899;
  white-space: nowrap;
  padding: 0.3rem 0.9rem;
  border: 1px solid rgba(236,72,153,0.3);
  border-radius: 100px;
  background: rgba(236,72,153,0.06);
  letter-spacing: 0.02em;
}

.timeline__details {
  margin-bottom: 1.2rem;
}

.timeline__details li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.6rem;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.65;
}

.timeline__details li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: #ec4899;
  font-weight: bold;
}

.timeline__details strong { color: #f9a8d4; font-weight: 600; }

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.section--experience .tag {
  background: rgba(236,72,153,0.08);
  border-color: rgba(236,72,153,0.2);
  color: #f9a8d4;
}

@media (max-width: 768px) {
  .timeline::before { left: 15px; }
  .timeline__item { padding-left: 50px; }
  .timeline__marker { left: 8px; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 4: PUBLICATIONS — LIBRARY THEME
   ═══════════════════════════════════════════════════════════════ */
.section--publications {
  background: #050810;
}

.paper-texture {
  background:
    radial-gradient(ellipse 60% 50% at 30% 20%, rgba(217,119,6,0.08) 0%, transparent 50%),
    radial-gradient(ellipse 50% 60% at 70% 80%, rgba(254,243,199,0.04) 0%, transparent 50%);
}

.section--publications .section-title {
  font-family: 'Playfair Display', serif;
  color: #fde68a;
}

.section--publications .section-number { color: rgba(217,119,6,0.35); }

.publications__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.pub-card {
  background: rgba(217,119,6,0.03);
  border: 1px solid rgba(217,119,6,0.12);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.pub-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #d97706, #fbbf24, #d97706);
  background-size: 200% auto;
  animation: gradientShift 4s ease-in-out infinite;
}

.pub-card:hover {
  transform: translateY(-8px);
  border-color: rgba(217,119,6,0.25);
  box-shadow: 0 16px 50px rgba(217,119,6,0.1), 0 0 0 1px rgba(217,119,6,0.1);
}

.pub-card__badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: rgba(217,119,6,0.12);
  border: 1px solid rgba(217,119,6,0.25);
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fbbf24;
  margin-bottom: 1.2rem;
}

.pub-card__title {
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: #fde68a;
  margin-bottom: 0.6rem;
  line-height: 1.4;
}

.pub-card__venue {
  font-size: 0.88rem;
  color: #d97706;
  font-style: italic;
  margin-bottom: 0.3rem;
}

.pub-card__authors {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1.2rem;
}

.pub-card__highlights {
  margin-bottom: 1.2rem;
}

.pub-card__highlights li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}

.pub-card__highlights li::before {
  content: '◈';
  position: absolute;
  left: 0;
  color: #d97706;
  font-size: 0.65rem;
  top: 0.3rem;
}

.pub-card__highlights strong { color: #fde68a; font-weight: 600; }

.pub-card__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.section--publications .tag {
  background: rgba(217,119,6,0.08);
  border-color: rgba(217,119,6,0.2);
  color: #fde68a;
}

@media (max-width: 768px) {
  .publications__grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 5: PROJECTS — LAB THEME
   ═══════════════════════════════════════════════════════════════ */
.section--projects {
  background: #050810;
}

.section--projects::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 50% 0%, rgba(59,130,246,0.06) 0%, transparent 60%);
  z-index: 0;
}

.section--projects .section-title { color: #93c5fd; }
.section--projects .section-number { color: rgba(59,130,246,0.35); }

/* — Filter Bar — */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
  justify-content: center;
}

.filter-btn {
  padding: 0.5rem 1.3rem;
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: 100px;
  background: transparent;
  color: rgba(255,255,255,0.5);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.35s ease;
}

.filter-btn:hover {
  border-color: rgba(59,130,246,0.35);
  color: rgba(255,255,255,0.85);
  background: rgba(59,130,246,0.05);
}

.filter-btn.active {
  background: rgba(59,130,246,0.12);
  border-color: rgba(59,130,246,0.4);
  color: #93c5fd;
  box-shadow: 0 0 15px rgba(59,130,246,0.1);
}

/* — Project Cards — */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: rgba(59,130,246,0.02);
  border: 1px solid rgba(59,130,246,0.08);
  border-radius: 16px;
  padding: 1.8rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card.hidden {
  display: none;
}

/* Gradient border on hover */
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59,130,246,0.4), rgba(139,92,246,0.3), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

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

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 50px rgba(59,130,246,0.08);
  background: rgba(59,130,246,0.04);
}

.project-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  filter: saturate(0.9);
}

.project-card__status {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.7rem;
  border-radius: 100px;
}

.status--flagship {
  background: rgba(249,115,22,0.15);
  color: #fb923c;
  border: 1px solid rgba(249,115,22,0.25);
  box-shadow: 0 0 10px rgba(249,115,22,0.1);
}

.status--complete {
  background: rgba(34,197,94,0.1);
  color: #4ade80;
  border: 1px solid rgba(34,197,94,0.2);
}

.status--progress {
  background: rgba(59,130,246,0.1);
  color: #93c5fd;
  border: 1px solid rgba(59,130,246,0.2);
}

.project-card__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.7rem;
  line-height: 1.35;
}

.project-card__desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 1.2rem;
  flex-grow: 1;
  line-height: 1.65;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}

.section--projects .tag {
  background: rgba(59,130,246,0.07);
  border-color: rgba(59,130,246,0.15);
  color: #93c5fd;
}

.project-card__link {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: #3b82f6;
  transition: all 0.3s;
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.project-card__link:hover {
  color: #93c5fd;
  transform: translateX(3px);
}

@media (max-width: 768px) {
  .projects__grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 6: SKILLS — FLUID THEME
   ═══════════════════════════════════════════════════════════════ */
.section--skills {
  background: #050810;
}

.wave-bg {
  background:
    radial-gradient(ellipse 60% 50% at 25% 40%, rgba(6,182,212,0.08) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 75% 60%, rgba(109,40,217,0.07) 0%, transparent 55%);
}

.section--skills .section-title { color: #67e8f9; }
.section--skills .section-number { color: rgba(6,182,212,0.35); }

.skills__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.skills__grid > .skill-group:last-child {
  grid-column: 1 / -1;
}

.skill-group {
  background: rgba(6,182,212,0.03);
  border: 1px solid rgba(6,182,212,0.08);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.skill-group::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(6,182,212,0.25), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.skill-group:hover::before { opacity: 1; }

.skill-group:hover {
  box-shadow: 0 8px 35px rgba(6,182,212,0.08);
  transform: translateY(-4px);
}

.skill-group__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
  color: #67e8f9;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.skill-icon { font-size: 1.2rem; }

.skill-bubbles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-bubble {
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
}

.skill-bubble:hover {
  transform: translateY(-3px) scale(1.05);
}

.skill-bubble--expert {
  background: rgba(6,182,212,0.15);
  border: 1px solid rgba(6,182,212,0.35);
  color: #67e8f9;
  box-shadow: 0 0 8px rgba(6,182,212,0.1);
}

.skill-bubble--advanced {
  background: rgba(109,40,217,0.12);
  border: 1px solid rgba(109,40,217,0.25);
  color: #c4b5fd;
}

.skill-bubble--intermediate {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.6);
}

.skill-bubble--beginner {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.35);
}

.skills__legend {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot--expert { background: rgba(6,182,212,0.5); border: 1px solid #06b6d4; }
.legend-dot--advanced { background: rgba(109,40,217,0.4); border: 1px solid #6d28d9; }
.legend-dot--intermediate { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); }
.legend-dot--beginner { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); }

@media (max-width: 768px) {
  .skills__grid { grid-template-columns: 1fr; }
  .skills__grid > .skill-group:last-child { grid-column: auto; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 7: ACHIEVEMENTS — TROPHY THEME
   ═══════════════════════════════════════════════════════════════ */
.section--achievements {
  background: #050810;
}

.section--achievements::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 50% 30%, rgba(251,191,36,0.06) 0%, transparent 60%);
  z-index: 0;
}

.section--achievements .section-title { color: #fde68a; }
.section--achievements .section-number { color: rgba(251,191,36,0.35); }

.achievements__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

.trophy-card {
  background: rgba(251,191,36,0.03);
  border: 1px solid rgba(251,191,36,0.1);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

/* Gold shimmer sweep */
.trophy-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -100%;
  width: 60%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(251,191,36,0.06), transparent);
  transform: rotate(25deg);
  transition: left 0.8s ease;
  pointer-events: none;
}

.trophy-card:hover::after {
  left: 150%;
}

.trophy-card:hover {
  transform: translateY(-8px);
  border-color: rgba(251,191,36,0.25);
  box-shadow: 0 16px 50px rgba(251,191,36,0.08);
}

.trophy-card__icon {
  font-size: 2.8rem;
  margin-bottom: 1rem;
  display: block;
}

.trophy-card__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fde68a;
  margin-bottom: 0.5rem;
}

.trophy-card__desc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 8: GITHUB — GARDEN THEME
   ═══════════════════════════════════════════════════════════════ */
.section--github {
  background: #050810;
}

.garden-bg {
  background:
    radial-gradient(ellipse 50% 50% at 30% 40%, rgba(132,204,22,0.06) 0%, transparent 50%),
    radial-gradient(ellipse 40% 50% at 70% 60%, rgba(22,101,52,0.06) 0%, transparent 50%);
}

.section--github .section-title { color: #bef264; }
.section--github .section-number { color: rgba(132,204,22,0.35); }

.github__layout {
  display: grid;
  gap: 3rem;
}

.github__profiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.github-profile-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: rgba(132,204,22,0.03);
  border: 1px solid rgba(132,204,22,0.1);
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.github-profile-card:hover {
  border-color: rgba(132,204,22,0.3);
  transform: translateY(-5px);
  box-shadow: 0 12px 35px rgba(132,204,22,0.08);
}

.github-profile__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #166534, #84cc16);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.github-profile__info h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
  color: #bef264;
}

.github-profile__info p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.2rem;
}

.github-profile__stat {
  font-size: 0.72rem;
  color: rgba(132,204,22,0.5);
}

.github-profile__arrow {
  margin-left: auto;
  font-size: 1.5rem;
  color: rgba(132,204,22,0.3);
  transition: all 0.3s;
}

.github-profile-card:hover .github-profile__arrow {
  transform: translateX(5px);
  color: #84cc16;
}

/* Learning Garden */
.learning-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  color: #bef264;
  margin-bottom: 0.8rem;
}

.learning-desc {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1.5rem;
  max-width: 800px;
  line-height: 1.7;
}

.learning-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.learning-tag {
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  background: rgba(132,204,22,0.06);
  border: 1px solid rgba(132,204,22,0.12);
  color: rgba(190,242,100,0.6);
  transition: all 0.3s ease;
}

.learning-tag:hover {
  background: rgba(132,204,22,0.12);
  color: #bef264;
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .github__profiles { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION 9: CONTACT — CRYSTAL THEME
   ═══════════════════════════════════════════════════════════════ */
.section--contact {
  background: #050810;
  text-align: center;
}

.aurora-bg {
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(192,132,252,0.1) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 80% 30%, rgba(96,165,250,0.07) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 50% 80%, rgba(236,72,153,0.06) 0%, transparent 50%);
}

.section--contact .section-title {
  justify-content: center;
  color: #e9d5ff;
}

.section--contact .section-title::after { display: none; }

.section--contact .section-number { color: rgba(192,132,252,0.35); }

.contact__intro {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 3.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.contact__intro strong { color: #c4b5fd; }

.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto 5rem;
}

.contact-card {
  /* Brave-safe: solid bg, no backdrop-filter */
  background: rgba(192,132,252,0.04);
  border: 1px solid rgba(192,132,252,0.1);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(192,132,252,0.3), rgba(96,165,250,0.2), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

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

.contact-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 50px rgba(192,132,252,0.1);
}

.contact-card__icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.contact-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #e9d5ff;
  margin-bottom: 0.4rem;
}

.contact-card p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
}

/* Footer */
.footer {
  padding-top: 4rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.3);
}

.footer strong { color: rgba(255,255,255,0.6); }

.footer__sub {
  font-size: 0.72rem;
  margin-top: 0.3rem;
  color: rgba(255,255,255,0.15);
}

@media (max-width: 768px) {
  .contact__grid { grid-template-columns: 1fr; max-width: 400px; }
  .resume-hub { padding: 1.3rem; }
  .resume-hub__grid { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION DIVIDERS — Soft glow transitions between sections
   ═══════════════════════════════════════════════════════════════ */
.section--about::before,
.section--experience::before,
.section--publications::before,
.section--skills::before,
.section--github::before,
.section--contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, rgba(255,255,255,0.04) 50%, transparent 95%);
  z-index: 1;
}

/* ═══════════════════════════════════════════════════════════════
   UTILITY & GLOBAL
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }
  .hero__name { font-size: 2.8rem; }
  .hero__badges { gap: 0.5rem; }
  .hero-badge { font-size: 0.72rem; padding: 0.4rem 0.7rem; }
  .section-title { font-size: 1.8rem; margin-bottom: 2.5rem; }
}

/* Selection color */
::selection {
  background: rgba(124,58,237,0.35);
  color: #f1f5f9;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: #050810; }
::-webkit-scrollbar-thumb { background: rgba(124,58,237,0.3); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: rgba(124,58,237,0.5); }

/* Firefox scrollbar */
html {
  scrollbar-width: thin;
  scrollbar-color: rgba(124,58,237,0.3) #050810;
}

/* ═══════════════════════════════════════════════════════════════
   LOADING SCREEN (#7)
   ═══════════════════════════════════════════════════════════════ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #050810;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__ring {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #7c3aed, #ec4899, #06b6d4, #7c3aed);
  padding: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: loaderSpin 1.5s linear infinite;
}

.loader__monogram {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: #050810;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #e2e8f0;
}

.loader__text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.1em;
}

@keyframes loaderSpin {
  to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════════
   RESUME BUTTON (#1)
   ═══════════════════════════════════════════════════════════════ */
.btn--resume {
  background: rgba(255,255,255,0.06);
  color: #e2e8f0;
  border: 1px solid rgba(124,58,237,0.3);
  position: relative;
  overflow: hidden;
}

.btn--resume::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.15), rgba(236,72,153,0.1));
  opacity: 0;
  transition: opacity 0.35s;
}

.btn--resume:hover::before { opacity: 1; }

.btn--resume:hover {
  border-color: rgba(124,58,237,0.6);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(124,58,237,0.2);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

.contact__resume {
  margin-top: 3rem;
  text-align: center;
}

.resume-hub {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 2rem;
  border: 1px solid rgba(192,132,252,0.12);
  border-radius: 18px;
  background: rgba(192,132,252,0.04);
}

.resume-hub__eyebrow {
  margin-bottom: 0.4rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #c084fc;
}

.resume-hub__title {
  margin-bottom: 1.4rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: #f3e8ff;
}

.resume-hub__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  text-align: left;
}

.resume-hub__card {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-height: 92px;
  padding: 1rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  background: rgba(255,255,255,0.035);
  transition: all 0.25s ease;
}

.resume-hub__card:hover {
  transform: translateY(-3px);
  border-color: rgba(192,132,252,0.32);
  background: rgba(192,132,252,0.08);
}

.resume-hub__label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
  color: #f3e8ff;
}

.resume-hub__meta {
  font-size: 0.78rem;
  line-height: 1.45;
  color: rgba(255,255,255,0.48);
}

.resume-hub__proof {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.resume-hub__proof a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: #c4b5fd;
  border-bottom: 1px solid rgba(196,181,253,0.28);
}

.resume-hub__proof a:hover {
  color: #f3e8ff;
  border-bottom-color: rgba(243,232,255,0.7);
}

/* ═══════════════════════════════════════════════════════════════
   EDUCATION SECTION — PRISM THEME (#5)
   ═══════════════════════════════════════════════════════════════ */
.section--education {
  background: #050810;
}

.prism-bg {
  background:
    radial-gradient(ellipse 50% 50% at 20% 40%, rgba(99,102,241,0.08) 0%, transparent 55%),
    radial-gradient(ellipse 40% 50% at 80% 60%, rgba(168,85,247,0.06) 0%, transparent 55%);
}

.section--education .section-title { color: #a5b4fc; }
.section--education .section-number { color: rgba(99,102,241,0.35); }

[data-active-theme="prism"] .nav-dot.active {
  background: #6366f1;
  border-color: #6366f1;
  box-shadow: 0 0 12px rgba(99,102,241,0.6);
}

.education__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
}

.edu-card {
  background: rgba(99,102,241,0.03);
  border: 1px solid rgba(99,102,241,0.1);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.edu-card--primary {
  grid-column: 1 / -1;
  background: rgba(99,102,241,0.04);
  border-color: rgba(99,102,241,0.15);
}

.edu-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(99,102,241,0.08);
  border-color: rgba(99,102,241,0.25);
}

.edu-card__badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: 100px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #a5b4fc;
  margin-bottom: 1rem;
}

.edu-card__degree {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: #c7d2fe;
  margin-bottom: 0.3rem;
}

.edu-card__school {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 0.2rem;
}

.edu-card__period {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: rgba(99,102,241,0.6);
}

.edu-card__stats {
  display: flex;
  gap: 2rem;
  margin: 1.5rem 0;
  padding: 1rem 0;
  border-top: 1px solid rgba(99,102,241,0.08);
  border-bottom: 1px solid rgba(99,102,241,0.08);
}

.edu-stat__value {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: #a5b4fc;
  line-height: 1;
}

.edu-stat__label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-top: 0.3rem;
  display: block;
}

.edu-card__details p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.edu-card__details strong {
  color: #a5b4fc;
}

@media (max-width: 768px) {
  .education__grid { grid-template-columns: 1fr; }
  .edu-card--primary { grid-column: auto; }
}

/* ═══════════════════════════════════════════════════════════════
   SECTION TRANSITIONS (#4) — Gradient bleed between sections
   ═══════════════════════════════════════════════════════════════ */
.section--about { background: linear-gradient(180deg, #050810 0%, #030d0a 40%, #030d0a 60%, #050810 100%); }
.section--experience { background: linear-gradient(180deg, #050810 0%, #0d0515 40%, #0d0515 60%, #050810 100%); }
.section--education { background: linear-gradient(180deg, #050810 0%, #080a18 40%, #080a18 60%, #050810 100%); }
.section--publications { background: linear-gradient(180deg, #050810 0%, #0d0a05 40%, #0d0a05 60%, #050810 100%); }
.section--projects { background: linear-gradient(180deg, #050810 0%, #050a14 40%, #050a14 60%, #050810 100%); }
.section--skills { background: linear-gradient(180deg, #050810 0%, #050d10 40%, #050d10 60%, #050810 100%); }
.section--achievements { background: linear-gradient(180deg, #050810 0%, #0d0a03 40%, #0d0a03 60%, #050810 100%); }
.section--github { background: linear-gradient(180deg, #050810 0%, #050d05 40%, #050d05 60%, #050810 100%); }
.section--contact { background: linear-gradient(180deg, #050810 0%, #0a0815 40%, #0a0815 60%, #050810 100%); }

/* ═══════════════════════════════════════════════════════════════
   GITHUB HEATMAP (#8)
   ═══════════════════════════════════════════════════════════════ */
.github__heatmap-section {
  margin-bottom: 2rem;
}

.heatmap-note {
  margin: -0.4rem 0 1rem;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.38);
}

.github-heatmap {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: 2px;
  margin-bottom: 0.8rem;
  max-width: 100%;
  overflow-x: auto;
}

.heatmap-week {
  display: grid;
  grid-template-rows: repeat(7, 1fr);
  gap: 2px;
}

.heatmap-cell {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: rgba(132,204,22,0.05);
  transition: all 0.2s;
}

.heatmap-cell:hover {
  transform: scale(1.5);
  box-shadow: 0 0 6px rgba(132,204,22,0.4);
}

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  justify-content: flex-end;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
}

.heatmap-legend .heatmap-cell {
  width: 10px;
  height: 10px;
}

.heatmap-legend__label {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.25);
  margin: 0 0.3rem;
}

@media (max-width: 768px) {
  .github-heatmap { grid-template-columns: repeat(26, 1fr); }
}

/* ═══════════════════════════════════════════════════════════════
   BACK TO TOP (#9)
   ═══════════════════════════════════════════════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(124,58,237,0.2);
  background: rgba(5,8,16,0.9);
  color: #a855f7;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: rgba(124,58,237,0.15);
  border-color: rgba(124,58,237,0.5);
  box-shadow: 0 0 20px rgba(124,58,237,0.2);
  transform: translateY(-3px);
}