/* ===== Design Tokens ===== */
:root {
  --cream: #f7f5f0;
  --cream-dark: #edeae3;
  --white: #ffffff;
  --navy: #1a2744;
  --navy-light: #2c3e5a;
  --copper: #b87333;
  --copper-light: #d4976a;
  --copper-dim: rgba(184, 115, 51, 0.1);
  --text: #2d3436;
  --text-light: #636e72;
  --text-lighter: #9ca3af;
  --border: #e0ddd6;
  --border-light: #ece9e2;
  --font-serif: 'Merriweather', Georgia, serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-h: 72px;
  --max-w: 1120px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== Hero Particles Canvas ===== */
.hero__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ===== Horizontal Marquee ===== */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
  background: var(--navy);
  border-top: 1px solid rgba(184, 115, 51, 0.2);
  border-bottom: 1px solid rgba(184, 115, 51, 0.2);
  z-index: 2;
}

.marquee__track {
  display: flex;
  align-items: center;
  gap: 32px;
  white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}

.marquee__track span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(247, 245, 240, 0.5);
  flex-shrink: 0;
}

.marquee__dot {
  width: 4px !important;
  height: 4px;
  border-radius: 50%;
  background: var(--copper) !important;
  display: inline-block;
  flex-shrink: 0;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.marquee::before,
.marquee::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}

.marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--navy), transparent);
}

.marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--navy), transparent);
}

/* ===== Animated Gradient Border (Project Cards) ===== */
.project::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 16px;
  padding: 1.5px;
  background: linear-gradient(
    var(--gradient-angle, 0deg),
    transparent 0%,
    var(--copper) 25%,
    var(--copper-light) 50%,
    var(--copper) 75%,
    transparent 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 0;
}

.project:hover::after {
  opacity: 1;
  animation: rotateBorder 3s linear infinite;
}

@keyframes rotateBorder {
  0% { --gradient-angle: 0deg; }
  100% { --gradient-angle: 360deg; }
}

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

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--copper), var(--copper-light));
  z-index: 9999;
  transition: width 0.05s linear;
  box-shadow: 0 0 8px rgba(184, 115, 51, 0.4);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection {
  background: var(--copper);
  color: var(--white);
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
strong { font-weight: 600; color: var(--navy); }
em { font-family: var(--font-serif); font-style: italic; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Loader ===== */
.loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--cream);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader__bar {
  width: 48px;
  height: 2px;
  background: var(--copper);
  animation: loaderPulse 1s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { transform: scaleX(1); opacity: 1; }
  50% { transform: scaleX(2); opacity: 0.5; }
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.nav--scrolled {
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--navy);
  letter-spacing: -0.01em;
  transition: transform 0.3s var(--ease);
}

.nav__logo:hover {
  transform: scale(1.05);
}

.nav__logo-dot {
  color: var(--copper);
  display: inline-block;
  transition: transform 0.3s var(--ease);
}

.nav__logo:hover .nav__logo-dot {
  transform: scale(1.4);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-light);
  position: relative;
  transition: color 0.3s ease;
}

.nav__links a:not(.nav__cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--copper);
  transition: width 0.3s var(--ease);
}

.nav__links a:hover { color: var(--navy); }
.nav__links a:hover::after { width: 100%; }
.nav__links a.active { color: var(--navy); }
.nav__links a.active::after { width: 100%; }

.nav__cta {
  padding: 8px 20px;
  border: 1.5px solid var(--navy);
  border-radius: 6px;
  color: var(--navy) !important;
  transition: all 0.3s ease !important;
}

.nav__cta:hover {
  background: var(--navy) !important;
  color: var(--white) !important;
}

.nav__cta::after { display: none !important; }

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 7px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
}

.nav__toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--navy);
  transition: all 0.35s var(--ease);
  transform-origin: center;
}

.nav__toggle.active span:first-child { transform: rotate(45deg) translate(3px, 3px); }
.nav__toggle.active span:last-child { transform: rotate(-45deg) translate(3px, -3px); }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 39, 68, 0.3);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  backdrop-filter: blur(4px);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

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

.hero__grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 70%);
}

/* Subtle noise grain overlay */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero__container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 24px;
}

.hero__label-line {
  display: inline-block;
  width: 32px;
  height: 1.5px;
  background: var(--copper);
  animation: lineExpand 0.8s var(--ease) 0.5s both;
}

@keyframes lineExpand {
  from { width: 0; }
  to { width: 32px; }
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero__title span {
  display: block;
}

.hero__desc {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 520px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.5s ease, color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
  cursor: pointer;
  border: 1.5px solid transparent;
}

.btn--filled {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn--filled:hover {
  background: var(--copper);
  border-color: var(--copper);
  box-shadow: 0 8px 24px rgba(184, 115, 51, 0.15);
}

.btn--ghost {
  color: var(--navy);
  border-color: var(--border);
  background: var(--white);
}

.btn--ghost:hover {
  border-color: var(--navy);
}

.btn--text {
  color: var(--copper);
  padding: 14px 16px;
  border: none;
  font-weight: 500;
  gap: 8px;
}

.btn--text:hover {
  color: var(--navy);
}

.btn--text:hover .btn__arrow {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.btn__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 1.5px solid var(--copper);
  color: var(--copper);
  font-size: 0.75rem;
  line-height: 1;
  transition: background 0.5s ease, border-color 0.5s ease, color 0.5s ease;
}

/* Hero Card */
.hero__card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s ease, border-color 0.4s ease;
}

.hero__card:hover {
  border-color: rgba(184, 115, 51, 0.25);
  box-shadow: 0 12px 40px rgba(0,0,0,0.07), 0 4px 12px rgba(184, 115, 51, 0.06);
}

.hero__card-row { margin-bottom: 12px; }

.hero__card-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-lighter);
}

.hero__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.hero__card-tags span {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--copper-dim);
  color: var(--copper);
  border: 1px solid rgba(184, 115, 51, 0.15);
}

.hero__card-tags--small {
  margin-bottom: 0;
}

.hero__card-tags--small span {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(26, 39, 68, 0.06);
  color: var(--navy-light);
  border-color: rgba(26, 39, 68, 0.1);
}

.hero__card-divider {
  height: 1px;
  background: var(--border-light);
  margin: 16px 0;
}

.hero__card-text {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 4px;
}

/* Hero to section transition */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--white));
  pointer-events: none;
}

/* ===== Sections ===== */
.section {
  padding: 100px 0;
}

.section:nth-child(odd) {
  background: var(--white);
}

.section__header {
  margin-bottom: 56px;
}

.section__number {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--copper);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  color: var(--navy);
  line-height: 1.2;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--copper);
  transition: width 0.8s var(--ease);
}

.section__title.visible::after {
  width: 40px;
}

.section__subheader {
  margin-bottom: 24px;
}

.section__subheader h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--navy);
}

/* ===== About ===== */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: start;
}

.about__text p {
  margin-bottom: 16px;
  color: var(--text-light);
  font-size: 1rem;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.stat {
  padding: 28px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  background: var(--cream);
  transition: all 0.4s var(--ease);
}

.stat:hover {
  border-color: var(--copper);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(184, 115, 51, 0.08);
}

.stat__number {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.75rem;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--text-lighter);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Experience ===== */
.exp__timeline {
  position: relative;
}

/* Animated vertical timeline line */
.exp__timeline::before {
  content: '';
  position: absolute;
  left: 180px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--copper), var(--border) 30%, var(--border) 70%, transparent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 1.2s var(--ease);
}

.exp__timeline.timeline-visible::before {
  transform: scaleY(1);
}

/* Timeline dots on each item */
.exp__item::before {
  content: '';
  position: absolute;
  left: 176px;
  top: 44px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--copper);
  background: var(--cream);
  z-index: 2;
  opacity: 0;
  transform: scale(0);
  transition: all 0.4s var(--ease);
}

.exp__item.visible::before {
  opacity: 1;
  transform: scale(1);
}

.exp__list {
  border-top: 1px solid var(--border);
}

.exp__item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

.exp__item:hover {
  background: linear-gradient(90deg, var(--copper-dim), transparent);
  border-radius: 8px;
}

.exp__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-lighter);
  padding-top: 4px;
}

.exp__content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

.exp__content h4 {
  font-size: 0.9rem;
  color: var(--copper);
  font-weight: 500;
  margin-bottom: 12px;
}

.exp__content ul {
  padding-left: 0;
}

.exp__content li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

.exp__content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 1.5px;
  background: var(--copper);
}

/* Education */
.edu__row {
  margin-top: 56px;
}

.edu__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.edu__card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--cream);
  transition: all 0.4s var(--ease);
}

.edu__card:hover {
  border-color: var(--copper);
  transform: translateY(-3px);
}

.edu__degree {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--navy);
  margin-bottom: 4px;
}

.edu__field {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.edu__school {
  display: block;
  font-size: 0.85rem;
  color: var(--copper);
  margin-bottom: 4px;
}

.edu__year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-lighter);
}

/* ===== Projects ===== */
.projects__category {
  margin-bottom: 24px;
}

.projects__category-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.projects__category-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--copper-dim);
  color: var(--copper);
}

.projects__category-label h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--navy);
}

.projects__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.project {
  position: relative;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--white);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}

/* Cursor-following glow */
.project__glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 115, 51, 0.08), transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  transform: translate(-50%, -50%);
  z-index: 0;
}

.project:hover .project__glow {
  opacity: 1;
}

.project__content, .project__num, .project__link {
  position: relative;
  z-index: 1;
}

.project::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--copper);
  transition: height 0.4s var(--ease);
  border-radius: 0 0 2px 2px;
  z-index: 1;
}

.project:hover {
  border-color: rgba(184, 115, 51, 0.3);
  box-shadow: 0 16px 48px rgba(0,0,0,0.06), 0 0 40px rgba(184, 115, 51, 0.06);
}

.project:hover::before {
  height: 100%;
}

.project__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-lighter);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.project__content h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 12px;
}

.project__content p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.project__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project__tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 10px;
  background: var(--cream);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  color: var(--text-light);
}

.project__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--copper);
  transition: gap 0.3s ease;
}

.project__link:hover {
  color: var(--navy);
}

/* ===== Skills ===== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-col {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--cream);
  transition: all 0.4s var(--ease);
}

.skill-col:hover {
  border-color: var(--copper);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(184, 115, 51, 0.08);
}

.skill-col__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--copper-dim);
  color: var(--copper);
  margin-bottom: 16px;
}

.skill-col h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--navy);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1.5px solid var(--copper);
  display: inline-block;
}

.skill-col li {
  position: relative;
  padding: 8px 0 8px 16px;
  font-size: 0.9rem;
  color: var(--text-light);
  border-bottom: 1px solid var(--border-light);
}

.skill-col li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--copper);
  transition: transform 0.3s var(--ease);
}

.skill-col li:hover {
  color: var(--navy);
}

.skill-col li:hover::before {
  transform: translateY(-50%) scale(1.6);
}

.skill-col li:last-child { border-bottom: none; }

/* ===== Publications ===== */
.pub {
  display: flex;
  gap: 32px;
  padding: 32px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--copper);
  border-radius: 16px;
  background: var(--cream);
  transition: all 0.35s var(--ease);
}

.pub:hover {
  border-color: var(--copper);
  border-left-color: var(--copper);
  box-shadow: 0 8px 24px rgba(184, 115, 51, 0.08);
  transform: translateY(-3px);
}

.pub__year {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--navy);
  line-height: 1;
  flex-shrink: 0;
}

.pub__body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.5;
  margin-bottom: 8px;
}

.pub__body p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.pub__body a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--copper);
  transition: color 0.3s;
}

.pub__body a:hover { color: var(--navy); }

.pub__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(46, 125, 50, 0.1);
  color: #2e7d32;
  margin-bottom: 10px;
}

.pub__note {
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--text-lighter);
  font-style: italic;
  padding-left: 24px;
  border-left: 2px solid var(--border);
}

/* ===== Contact ===== */
.contact__intro {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.contact__cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.contact__links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.contact__item {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  transition: all 0.35s var(--ease);
}

.contact__item:hover {
  border-color: var(--copper);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(184, 115, 51, 0.08);
}

.contact__item-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-lighter);
  margin-bottom: 8px;
}

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

/* ===== Footer ===== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-lighter);
}

.footer__links {
  display: flex;
  gap: 20px;
}

.footer__links a {
  color: var(--text-lighter);
  transition: color 0.3s ease, transform 0.3s ease;
  display: flex;
}

.footer__links a:hover {
  color: var(--copper);
  transform: translateY(-2px);
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.35s var(--ease);
  z-index: 50;
  box-shadow: 0 4px 16px rgba(26, 39, 68, 0.2);
}

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

.back-to-top:hover {
  background: var(--copper);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(184, 115, 51, 0.25);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* ===== Animations ===== */

/* Hero title lines */
.anim-clip {
  display: block;
}

/* Hero fade up reveal */
.anim-reveal {
  opacity: 1;
  transform: none;
}

/* Button ripple effect */
.btn {
  position: relative;
  overflow: hidden;
}

.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: rippleEffect 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes rippleEffect {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Project link animated arrow */
.project__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project__link::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.35s var(--ease);
  transform-origin: left;
}

.project__link:hover::after {
  transform: scaleX(1.8);
}

/* Card tilt 3D effect */
.tilt-card {
  transition: transform 0.15s ease-out, box-shadow 0.3s ease;
  transform-style: preserve-3d;
  will-change: transform;
}

/* Tag float-in animation */
.hero__card-tags span {
  opacity: 0;
  transform: translateY(8px);
  animation: tagFloat 0.4s var(--ease) forwards;
}

.hero__card-tags span:nth-child(1) { animation-delay: 1.0s; }
.hero__card-tags span:nth-child(2) { animation-delay: 1.1s; }
.hero__card-tags span:nth-child(3) { animation-delay: 1.2s; }
.hero__card-tags span:nth-child(4) { animation-delay: 1.3s; }
.hero__card-tags span:nth-child(5) { animation-delay: 1.4s; }
.hero__card-tags span:nth-child(6) { animation-delay: 1.5s; }

@keyframes tagFloat {
  to { opacity: 1; transform: translateY(0); }
}

/* Stagger reveal for project tags on hover */
.project:hover .project__tags span {
  animation: tagPop 0.3s var(--ease) forwards;
}

.project:hover .project__tags span:nth-child(1) { animation-delay: 0s; }
.project:hover .project__tags span:nth-child(2) { animation-delay: 0.04s; }
.project:hover .project__tags span:nth-child(3) { animation-delay: 0.08s; }
.project:hover .project__tags span:nth-child(4) { animation-delay: 0.12s; }

@keyframes tagPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); background: var(--copper-dim); color: var(--copper); border-color: rgba(184, 115, 51, 0.2); }
}

/* Stat card number pulse on hover */
.stat:hover .stat__number {
  animation: numberPulse 0.5s var(--ease);
}

@keyframes numberPulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

/* Contact card arrow animation */
.contact__item::after {
  content: '\2197';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 1rem;
  color: var(--text-lighter);
  opacity: 0;
  transform: translate(-4px, 4px);
  transition: all 0.35s var(--ease);
}

.contact__item {
  position: relative;
}

.contact__item:hover::after {
  opacity: 1;
  transform: translate(0, 0);
  color: var(--copper);
}

/* Nav link active indicator dot */
.nav__links a.active::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--copper);
}

.nav__links a:not(.nav__cta) {
  position: relative;
}

/* Experience item slide-in line */
.exp__item::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--copper);
  transition: width 0.5s var(--ease);
}

.exp__item {
  position: relative;
}

.exp__item:hover::after {
  width: 100%;
}

/* Scroll-triggered reveals */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  transition-delay: calc(var(--d, 0) * 0.1s);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Text Scramble Effect ===== */
.section__number {
  font-variant-numeric: tabular-nums;
}

/* ===== Parallax Depth Layers ===== */
.parallax-layer {
  will-change: transform;
  transition: transform 0.1s linear;
}

/* ===== Card Scale-In Entrance ===== */
.scale-reveal {
  opacity: 0;
  transform: scale(0.92) translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: calc(var(--d, 0) * 0.1s);
}

.scale-reveal.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* ===== Word-by-Word Title Reveal ===== */
.word-reveal {
  overflow: hidden;
  display: inline-block;
}

.word-reveal .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%) rotateX(-80deg);
  transform-origin: bottom center;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.word-reveal.visible .word {
  opacity: 1;
  transform: translateY(0) rotateX(0deg);
}

/* ===== Floating Glow Orbs (Section Backgrounds) ===== */
.section {
  position: relative;
  overflow: hidden;
}

.section::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 115, 51, 0.04) 0%, transparent 70%);
  pointer-events: none;
  top: -100px;
  right: -100px;
  animation: floatOrb 12s ease-in-out infinite;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 40px) scale(1.1); }
  66% { transform: translate(20px, -20px) scale(0.9); }
}

/* ===== Skill Column Hover Glow ===== */
.skill-col {
  position: relative;
  overflow: hidden;
}

.skill-col::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(184, 115, 51, 0.06) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.skill-col:hover::after {
  opacity: 1;
}

/* ===== Education Card Stagger ===== */
.edu__card {
  position: relative;
  overflow: hidden;
}

.edu__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--copper), transparent);
  transition: left 0.6s var(--ease);
}

.edu__card:hover::before {
  left: 100%;
}

/* ===== Publication Card Shine ===== */
.pub {
  position: relative;
  overflow: hidden;
}

.pub::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 40%,
    rgba(184, 115, 51, 0.03) 45%,
    rgba(184, 115, 51, 0.05) 50%,
    rgba(184, 115, 51, 0.03) 55%,
    transparent 60%
  );
  transform: translateX(-100%) translateY(-100%);
  transition: none;
  pointer-events: none;
}

.pub:hover::after {
  animation: cardShine 0.8s ease forwards;
}

@keyframes cardShine {
  0% { transform: translateX(-100%) translateY(-100%); }
  100% { transform: translateX(100%) translateY(100%); }
}

/* ===== Contact Item Stagger Border ===== */
.contact__item {
  overflow: hidden;
}

.contact__item::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--copper), var(--copper-light), var(--copper));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.contact__item:hover::before {
  transform: scaleX(1);
}

/* ===== Stat Card Counter Glow ===== */
.stat {
  position: relative;
  overflow: hidden;
}

.stat::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(184, 115, 51, 0.08) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.stat:hover::after {
  opacity: 1;
}

/* ===== Smooth Section Dividers ===== */
.section + .section {
  border-top: none;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__title {
    background: none;
    -webkit-text-fill-color: var(--navy);
  }
  .hero__card-tags span { opacity: 1; transform: none; }
  .scroll-progress { transition: none; }
  .section__title::after { width: 40px; }
  .exp__timeline::before { transform: scaleY(1); }
  .exp__item::before { opacity: 1; transform: scale(1); }
  .marquee__track { animation: none; }
  .scale-reveal { opacity: 1; transform: none; }
  .word-reveal .word { opacity: 1; transform: none; }
  .section::before { animation: none; }
  .hero__particles { display: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero__right { max-width: 500px; }
  .hero__desc { max-width: 100%; }
  .about__grid { grid-template-columns: 1fr; gap: 40px; }
  .about__stats { grid-template-columns: repeat(4, 1fr); }
  .skills__grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .contact__links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .exp__timeline::before { display: none; }
  .exp__item::before { display: none; }
  .nav__toggle { display: flex; }

  .nav__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 100px 32px 32px;
    gap: 20px;
    transition: right 0.4s var(--ease);
    box-shadow: -8px 0 32px rgba(0,0,0,0.08);
    z-index: 100;
  }

  .nav__links.open { right: 0; }
  .nav__links a { font-size: 1rem; }

  .section { padding: 72px 0; }

  .exp__item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .edu__cards { grid-template-columns: 1fr; }
  .projects__grid { grid-template-columns: 1fr; }
  .about__stats { grid-template-columns: 1fr 1fr; }
  .skills__grid { grid-template-columns: 1fr; }
  .contact__links { grid-template-columns: 1fr; }
  .contact__cta { flex-direction: column; }
  .contact__cta .btn { text-align: center; justify-content: center; }

  .pub {
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 768px) {
  .marquee__track { animation-duration: 20s; }
  .section::before { width: 200px; height: 200px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn:not(.btn--text) { width: 100%; justify-content: center; }
  .hero__actions .btn--text { align-self: center; }
  .about__stats { grid-template-columns: 1fr 1fr; }
}