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

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --text: #f5f5f3;
  --text-secondary: #a1a1a1;
  --text-muted: #555555;
  --accent: #c8ff00;
  --accent-dim: rgba(200, 255, 0, 0.08);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Instrument Serif', Georgia, serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --radius: 16px;
}

/* --- Light Mode --- */
[data-theme="light"] {
  --bg: #fafaf9;
  --bg-elevated: #f0f0ee;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --text-muted: #999999;
  --accent: #2563eb;
  --accent-dim: rgba(37, 99, 235, 0.06);
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .grain { opacity: 0.02; }
[data-theme="light"] .cursor { background: var(--accent); mix-blend-mode: normal; }
[data-theme="light"] .cursor.hovering { background: var(--text); }
[data-theme="light"] .cursor-follower { border-color: rgba(37, 99, 235, 0.3); }
[data-theme="light"] .nav.scrolled { background: rgba(250, 250, 249, 0.85); }
[data-theme="light"] .hero-portrait-img { filter: grayscale(10%); }
[data-theme="light"] .loader { background: var(--bg); }
[data-theme="light"] .loader-text { color: var(--accent); }

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }


::selection {
  background: var(--accent);
  color: var(--bg);
}

/* --- Skip Link (accessibility) --- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 100000;
  background: var(--accent);
  color: var(--bg);
  padding: 12px 24px;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

/* --- Loading Screen --- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

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

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.loader-text {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--accent);
  letter-spacing: -0.03em;
  animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.loader-bar {
  width: 120px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  animation: loaderFill 0.6s var(--ease) forwards;
}

@keyframes loaderFill {
  to { width: 100%; }
}

/* --- Cursor --- */
.cursor, .cursor-follower {
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.cursor {
  width: 8px;
  height: 8px;
  background: var(--accent);
  z-index: 9999;
  transition: width 0.3s var(--ease), height 0.3s var(--ease), background 0.3s;
  mix-blend-mode: difference;
}

.cursor.hovering {
  width: 48px;
  height: 48px;
  background: var(--text);
}

.cursor-follower {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(200, 255, 0, 0.3);
  z-index: 9998;
  transition: width 0.4s var(--ease), height 0.4s var(--ease), border-color 0.3s;
}

.cursor-follower.hovering {
  width: 64px;
  height: 64px;
  border-color: transparent;
}

/* --- Grain --- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 128px;
}

/* --- Progress Bar --- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  z-index: 10001;
  transform-origin: left;
  transform: scaleX(0);
}

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 48px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, backdrop-filter 0.4s;
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.nav-logo {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-logo span {
  color: var(--text-muted);
  margin-left: 4px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-links a {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: color 0.3s;
  position: relative;
  letter-spacing: 0.02em;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s var(--ease);
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--accent); }
.nav-links a.active::after { width: 100%; background: var(--accent); }

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-icon-moon { display: none; }
[data-theme="light"] .theme-icon-sun { display: none; }
[data-theme="light"] .theme-icon-moon { display: block; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text);
  position: absolute;
  left: 4px;
  transition: all 0.4s var(--ease);
}

.nav-toggle span:first-child { top: 11px; }
.nav-toggle span:last-child { top: 19px; }
.nav-toggle.active span:first-child { transform: rotate(45deg); top: 15px; }
.nav-toggle.active span:last-child { transform: rotate(-45deg); top: 15px; }

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}

.mobile-menu.open { opacity: 1; pointer-events: all; }
.mobile-menu ul { text-align: center; }
.mobile-menu li { overflow: hidden; }

.mobile-menu a {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 4rem);
  padding: 8px 0;
  transform: translateY(100%);
  transition: transform 0.6s var(--ease), color 0.3s;
}

.mobile-menu.open a { transform: translateY(0); }
.mobile-menu a:hover { color: var(--accent); }

.mobile-menu li:nth-child(1) a { transition-delay: 0.05s; }
.mobile-menu li:nth-child(2) a { transition-delay: 0.1s; }
.mobile-menu li:nth-child(3) a { transition-delay: 0.15s; }
.mobile-menu li:nth-child(4) a { transition-delay: 0.2s; }
.mobile-menu li:nth-child(5) a { transition-delay: 0.25s; }

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 48px 80px;
  position: relative;
}

.hero-grid {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-label-line {
  width: 48px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.8s var(--ease);
}

.hero-label-line.visible { transform: scaleX(1); }

.hero-label-text {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.7s var(--ease) 0.15s, transform 0.7s var(--ease) 0.15s;
}

.hero-label-text.visible { opacity: 1; transform: translateX(0); }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
}

.hero-line { display: block; overflow: hidden; padding-bottom: 4px; }

.hero-word {
  display: inline-block;
  transform: translateY(105%);
  transition: transform 1s var(--ease);
}

.hero-word.visible { transform: translateY(0); }

.hero-description {
  max-width: 440px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.hero-description.visible { opacity: 1; transform: translateY(0); }

.hero-cta {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}

.hero-cta.visible { opacity: 1; transform: translateY(0); }

/* --- Portrait --- */
.hero-portrait {
  position: relative;
  flex-shrink: 0;
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}

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

.hero-portrait-frame {
  width: 340px;
  height: 420px;
  border-radius: 200px 200px var(--radius) var(--radius);
  overflow: hidden;
  position: relative;
  z-index: 2;
  border: 2px solid var(--border-hover);
}

.hero-portrait-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(20%);
  transition: filter 0.6s var(--ease), transform 0.6s var(--ease);
}

.hero-portrait:hover .hero-portrait-img {
  filter: grayscale(0%);
  transform: scale(1.04);
}

.hero-portrait-accent {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 100%;
  height: 100%;
  border-radius: 200px 200px var(--radius) var(--radius);
  border: 1px solid var(--accent);
  opacity: 0.25;
  z-index: 1;
  transition: all 0.5s var(--ease);
}

.hero-portrait:hover .hero-portrait-accent {
  top: 12px;
  left: 12px;
  opacity: 0.5;
}

/* --- Portrait Floating Cards --- */
.portrait-card {
  position: absolute;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255,255,255,0.08) inset;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.portrait-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.portrait-card-role.visible {
  animation: cardBob 4s ease-in-out 0.7s infinite;
}

.portrait-card-exp.visible {
  animation: cardBobAlt 5s ease-in-out 0.7s infinite;
}

.portrait-card .pc-label { color: #888; }
.portrait-card .pc-value { color: #1a1a1a; }
.portrait-card .pc-sub { color: #666; }
.portrait-card .pc-number { color: #1a1a1a; }

[data-theme="light"] .portrait-card {
  background: rgba(20, 20, 20, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255,255,255,0.04) inset;
}

[data-theme="light"] .portrait-card .pc-label { color: #aaa; }
[data-theme="light"] .portrait-card .pc-value { color: #f5f5f3; }
[data-theme="light"] .portrait-card .pc-sub { color: #999; }
[data-theme="light"] .portrait-card .pc-number { color: #f5f5f3; }

.portrait-card-role {
  top: 32px;
  right: -56px;
}

.portrait-card-exp {
  bottom: 72px;
  left: -44px;
}

/* Dot indicator */
.pc-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
  flex-shrink: 0;
}

/* Number block */
.pc-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1;
  color: var(--text);
  flex-shrink: 0;
}

.pc-number span {
  font-size: 1rem;
  opacity: 0.5;
}

.pc-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.pc-label {
  font-size: 0.5625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.pc-value {
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--text);
  line-height: 1.2;
}

.pc-sub {
  font-size: 0.6875rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

@keyframes cardBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes cardBobAlt {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

.hero-scroll-hint {
  position: absolute;
  bottom: 48px;
  left: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity 1s var(--ease);
}

.hero-scroll-hint.visible { opacity: 1; }

.scroll-line {
  width: 48px;
  height: 1px;
  background: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  inset: 0;
  left: -100%;
  background: var(--accent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { left: -100%; }
  50% { left: 0; }
  100% { left: 100%; }
}

/* --- Magnetic Button --- */
.btn-magnetic {
  display: inline-flex;
  position: relative;
  background: none;
  border: 1px solid var(--border-hover);
  padding: 20px 40px;
  border-radius: 100px;
  overflow: hidden;
  transition: border-color 0.4s;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text);
}

.btn-magnetic::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  border-radius: inherit;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.5s var(--ease);
}

.btn-magnetic:hover::before { transform: scaleY(1); }
.btn-magnetic:hover { border-color: var(--accent); }
.btn-magnetic:hover .btn-magnetic-inner { color: var(--bg); }
.btn-magnetic:hover .btn-arrow { transform: translate(3px, -3px); }

.btn-magnetic-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1;
  transition: color 0.4s;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.btn-arrow {
  font-size: 1.25rem;
  transition: transform 0.4s var(--ease);
}

.btn-submit { align-self: flex-start; }

/* --- Marquee (shared) --- */
.marquee, .skills-strip {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.marquee { padding: 32px 0; }

.marquee-track, .skills-strip-track {
  display: flex;
  align-items: center;
  gap: 40px;
  white-space: nowrap;
  width: max-content;
  animation: marquee 30s linear infinite;
}

.skills-strip-track {
  gap: 48px;
  animation-duration: 40s;
}

.marquee-track span {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}

.marquee-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.skills-strip-track span {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding: 4px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  white-space: nowrap;
}

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

/* --- Sections --- */
.section {
  padding: 160px 0;
  position: relative;
}

.section-dark { background: var(--bg-elevated); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 80px;
}

.section-number {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.03em;
}

/* --- About --- */
.about-intro { margin-bottom: 64px; }

.about-intro h3 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 400;
  line-height: 1.4;
  max-width: 800px;
}

.about-intro em,
.phil-card em,
.contact-headline em,
.hero-title em {
  color: var(--accent);
  font-style: italic;
}

.about-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 80px;
}

.about-col p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 0.9375rem;
  line-height: 1.8;
}

.about-numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.number-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: all 0.5s var(--ease);
  position: relative;
  overflow: hidden;
}

.number-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-dim);
  opacity: 0;
  transition: opacity 0.5s;
}

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

.number-card:hover {
  border-color: rgba(200, 255, 0, 0.2);
  transform: translateY(-4px);
}

[data-theme="light"] .number-card:hover {
  border-color: rgba(37, 99, 235, 0.2);
}

.number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  line-height: 1;
  color: var(--accent);
}

.number-suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
}

.number-icon {
  font-size: 3rem;
  line-height: 1;
  display: block;
}

.number-card p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 12px;
  letter-spacing: 0.02em;
}

/* --- Experience --- */
.exp-item {
  display: grid;
  grid-template-columns: 160px 1fr 1.5fr;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  transition: all 0.4s var(--ease);
  position: relative;
}

.exp-item:last-child { border-bottom: 1px solid var(--border); }

.exp-item::before {
  content: '';
  position: absolute;
  left: -48px;
  right: -48px;
  top: 0;
  bottom: 0;
  background: var(--accent-dim);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.exp-item:hover::before { opacity: 1; }

.exp-date {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.exp-center h3 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 4px;
  transition: color 0.3s;
}

.exp-item:hover .exp-center h3 { color: var(--accent); }

.exp-company {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.exp-badge {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid rgba(200, 255, 0, 0.15);
}

[data-theme="light"] .exp-badge {
  border-color: rgba(37, 99, 235, 0.15);
}

.exp-right p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Cases --- */
.cases {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.case-reverse { direction: rtl; }
.case-reverse > * { direction: ltr; }

.case-image {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.case-image-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.8s var(--ease);
}

.case:hover .case-image-inner { transform: scale(1.05); }

.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-tag {
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  margin-bottom: 16px;
  display: block;
}

.case-content h3 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 400;
  margin-bottom: 16px;
  line-height: 1.2;
}

.case-content > p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

.case-metrics {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
}

.metric { display: flex; flex-direction: column; }

.metric-value {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-tags span {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-secondary);
  transition: all 0.3s;
}

.case-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
  transition: gap 0.3s var(--ease);
}

.case-link:hover {
  gap: 12px;
}

.case-link .btn-arrow {
  font-size: 1rem;
}

/* --- Philosophy --- */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.phil-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
  transition: all 0.5s var(--ease);
  position: relative;
  overflow: hidden;
}

.phil-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease);
}

.phil-card:hover::after { transform: scaleX(1); }

.phil-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.phil-number {
  font-size: 0.6875rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 24px;
}

.phil-card h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  margin-bottom: 16px;
  line-height: 1.3;
}

.phil-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* --- Contact --- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.4;
  margin-bottom: 48px;
}

.contact-channel {
  display: flex;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  gap: 24px;
  transition: all 0.3s;
}

.contact-channel:last-child { border-bottom: 1px solid var(--border); }

.channel-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  width: 80px;
  flex-shrink: 0;
}

.channel-value {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  flex-grow: 1;
  transition: color 0.3s;
}

.contact-channel:hover .channel-value { color: var(--accent); }

.channel-arrow {
  font-size: 1.25rem;
  color: var(--text-muted);
  transition: all 0.4s var(--ease);
}

.contact-channel:hover .channel-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* --- Form --- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.form-group { position: relative; }

.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 20px 0 12px;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--text);
  outline: none;
  transition: border-color 0.3s;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group label {
  position: absolute;
  top: 20px;
  left: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: all 0.3s var(--ease);
  pointer-events: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
  top: 0;
  font-size: 0.6875rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.form-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  transform: scaleX(1);
}

/* --- Footer --- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-inner p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-note { font-style: italic; }

/* --- Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.split-text.visible .char {
  opacity: 1;
  transform: translateY(0);
}

/* --- Focus styles (accessibility) --- */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.nav-links a:focus-visible::after,
.btn-magnetic:focus-visible::before {
  width: 100%;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .section { padding: 120px 0; }
  .container { padding: 0 36px; }
  .section-header { margin-bottom: 56px; }

  .nav { padding: 0 36px; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }

  .hero { padding: 120px 36px 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-portrait { justify-self: center; }
  .hero-portrait-frame { width: 280px; height: 350px; }
  .portrait-card-role { right: -28px; top: 28px; }
  .portrait-card-exp { left: -20px; bottom: 56px; }
  .hero-title { font-size: clamp(2.5rem, 7vw, 4.5rem); }

  .about-body { grid-template-columns: 1fr; gap: 0; margin-bottom: 56px; }
  .about-numbers { grid-template-columns: 1fr 1fr; }

  .exp-item { grid-template-columns: 1fr; gap: 8px; }
  .exp-item::before { left: -24px; right: -24px; }

  .case { grid-template-columns: 1fr; gap: 40px; }
  .case-reverse { direction: ltr; }
  .cases { gap: 80px; padding: 0 36px; }

  .philosophy-grid { grid-template-columns: 1fr; }

  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {

  /* --- Mobile Nav --- */
  .nav { padding: 0 28px; height: 56px; }
  .theme-toggle { width: 40px; height: 40px; }

  /* --- Mobile Hero: portrait-first, centered --- */
  .hero {
    padding: 80px 28px 40px;
    min-height: auto;
  }
  .hero-grid {
    gap: 0;
    text-align: center;
  }
  .hero-content { order: 2; }
  .hero-portrait {
    order: 1;
    justify-self: center;
    margin-bottom: 32px;
  }
  .hero-label {
    justify-content: center;
    margin-bottom: 20px;
    gap: 10px;
  }
  .hero-label-line { width: 24px; }
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
  }
  .hero-description {
    max-width: 100%;
    margin-bottom: 28px;
    font-size: 0.9375rem;
    line-height: 1.7;
  }
  .hero-cta .btn-magnetic {
    width: 100%;
    justify-content: center;
    padding: 18px 32px;
  }

  .hero-portrait-frame {
    width: 200px;
    height: 250px;
    border-radius: 120px 120px 14px 14px;
  }
  .hero-portrait-accent { top: 10px; left: 10px; }

  .portrait-card { display: none; }
  .hero-scroll-hint { display: none; }

  /* --- Mobile Marquee --- */
  .marquee { padding: 16px 0; }
  .marquee-track span { font-size: 0.75rem; letter-spacing: 0.1em; }

  /* --- Mobile Sections --- */
  .section { padding: 64px 0; }
  .container { padding: 0 28px; }
  .section-header {
    margin-bottom: 32px;
    gap: 8px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .section-title { font-size: 2rem; }

  /* --- Mobile About --- */
  .about-intro { margin-bottom: 28px; }
  .about-intro h3 { font-size: 1.25rem; line-height: 1.5; }
  .about-body { grid-template-columns: 1fr; gap: 0; margin-bottom: 40px; }
  .about-col p { font-size: 0.875rem; line-height: 1.75; margin-bottom: 16px; }
  .about-numbers { grid-template-columns: 1fr 1fr; gap: 12px; }
  .number-card {
    padding: 24px 16px;
    border-radius: 12px;
  }
  .number { font-size: 2.5rem; }
  .number-suffix { font-size: 1.25rem; }
  .number-icon { font-size: 2rem; }
  .number-card p { font-size: 0.75rem; margin-top: 8px; }

  /* --- Mobile Experience: card layout --- */
  .experience-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .exp-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 14px;
    border-top: 1px solid var(--border);
    background: var(--bg);
  }
  .exp-item:last-child { border-bottom: 1px solid var(--border); }
  .exp-item::before { display: none; }
  .exp-date {
    font-size: 0.6875rem;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }
  .exp-center h3 { font-size: 1.0625rem; margin-bottom: 2px; }
  .exp-company { font-size: 0.8125rem; }
  .exp-badge { margin-top: 6px; font-size: 0.625rem; padding: 3px 10px; }
  .exp-right p {
    font-size: 0.8125rem;
    line-height: 1.65;
    color: var(--text-secondary);
    padding-top: 4px;
    border-top: 1px solid var(--border);
  }

  /* --- Mobile Cases: full-width cards --- */
  .cases { gap: 40px; padding: 0; }
  .case {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0 28px;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--bg-elevated);
  }
  .case-reverse { direction: ltr; }
  .case-image {
    border-radius: 0;
    aspect-ratio: 16/10;
  }
  .case-content {
    padding: 24px;
  }
  .case-tag { margin-bottom: 10px; font-size: 0.6875rem; }
  .case-content h3 { font-size: 1.25rem; margin-bottom: 12px; }
  .case-content > p { font-size: 0.8125rem; line-height: 1.7; margin-bottom: 20px; }
  .case-metrics {
    flex-direction: row;
    gap: 24px;
    margin-bottom: 16px;
    padding: 16px;
    background: var(--bg);
    border-radius: 10px;
    border: 1px solid var(--border);
  }
  .metric-value { font-size: 1.375rem; }
  .metric-label { font-size: 0.6875rem; }
  .case-tags { gap: 6px; }
  .case-tags span { font-size: 0.625rem; padding: 5px 12px; }
  .case-link { margin-top: 16px; font-size: 0.8125rem; }

  /* --- Mobile Philosophy --- */
  .philosophy-grid { gap: 12px; }
  .phil-card {
    padding: 24px 20px;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
  }
  .phil-number { margin-bottom: 12px; }
  .phil-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
  .phil-card p { font-size: 0.8125rem; line-height: 1.7; }

  /* --- Mobile Contact --- */
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .contact-headline {
    font-size: 1.5rem;
    margin-bottom: 24px;
    text-align: center;
  }
  .contact-headline br { display: none; }
  .contact-channels {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .contact-channel {
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: 12px;
    border-top: 1px solid var(--border);
    gap: 12px;
    background: var(--bg-elevated);
    min-height: 56px;
  }
  .contact-channel:last-child { border-bottom: 1px solid var(--border); }
  .channel-label { width: auto; font-size: 0.6875rem; }
  .channel-value { font-size: 0.8125rem; }
  .channel-arrow { font-size: 1rem; }

  .contact-form { gap: 20px; }
  .btn-magnetic { padding: 18px 32px; font-size: 0.875rem; }
  .btn-submit {
    width: 100%;
    justify-content: center;
    align-self: stretch;
  }

  /* --- Mobile Footer --- */
  .footer { padding: 28px 0; }
  .footer-inner {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  .footer-inner p { font-size: 0.6875rem; }

  /* --- Mobile Skills Strip --- */
  .skills-strip { padding: 16px 0; }
  .skills-strip-track span { font-size: 0.6875rem; padding: 3px 12px; }

  .form-group input,
  .form-group textarea { font-size: 16px; }
}

@media (max-width: 480px) {
  .hero { padding: 72px 24px 32px; }
  .hero-title { font-size: 2.125rem; }
  .hero-description { font-size: 0.875rem; }
  .hero-portrait-frame { width: 160px; height: 200px; }

  .section { padding: 48px 0; }
  .container { padding: 0 24px; }
  .section-header { margin-bottom: 24px; }
  .section-title { font-size: 1.75rem; }

  .case { margin: 0 24px; }
  .case-content { padding: 20px; }
  .case-metrics { flex-direction: column; gap: 12px; padding: 12px; }

  .nav { padding: 0 20px; }

  .about-intro h3 { font-size: 1.125rem; }
  .contact-headline { font-size: 1.25rem; }

  .exp-item { padding: 16px; }
  .exp-center h3 { font-size: 1rem; }

  .phil-card { padding: 20px 16px; }
  .phil-card h3 { font-size: 1.125rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal, .hero-word, .hero-description, .hero-cta,
  .hero-portrait, .portrait-card, .hero-label-text,
  .hero-scroll-hint, .split-text .char {
    opacity: 1 !important;
    transform: none !important;
  }
  .hero-label-line { transform: scaleX(1) !important; }
}