:root {
  --blue: #4b7bff;
  --blue-600: #3565ff;
  --ink: #0f172a;
  --text: #334155;
  --muted: #6b7280;
  --border: #e5e7eb;
  --bg: #f6f7fb;
  --bg-soft: #eef2ff;
  --bg-ghost: #f8fafc;
  --shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.18);
  --radius: 12px;
  --radius-lg: 16px;
}

* {
  box-sizing: border-box;
}

html, body {
  padding: 0;
  margin: 0;
  height: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-soft), var(--bg-ghost) 25%, var(--bg) 60%);
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 90px 0;
  position: relative;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
}

.section-title h2 {
  font-size: clamp(28px, 3.2vw, 40px);
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

.section-title .sub {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 10px 20px rgba(75, 123, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: var(--blue-600);
}

.btn-ghost {
  background: transparent;
  border: 1px solid #d9e2ff;
  color: var(--blue);
}

.btn-ghost:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(75, 123, 255, 0.12);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.6);
  border-bottom: 1px solid rgba(229, 231, 235, 0.7);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.nav-links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a.active {
  color: var(--ink);
  font-weight: 600;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-layer {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  transform: translate3d(0, 0, 0);
  transition: transform 0.2s ease-out;
}

.hero-layer.layer-back {
  background-image: radial-gradient(circle at 20% 20%, rgba(75, 123, 255, 0.16), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(75, 123, 255, 0.12), transparent 35%),
    linear-gradient(135deg, #f8fafc, #eef2ff);
}

.hero-layer.layer-mid {
  background-image: radial-gradient(circle at 70% 70%, rgba(15, 23, 42, 0.08), transparent 45%);
  mix-blend-mode: multiply;
}

.hero-layer.layer-front {
  background-image: linear-gradient(120deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0));
}

.hero-grain {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 24px;
  max-width: 640px;
}

.hero-content h1 {
  font-size: clamp(36px, 6vw, 64px);
  margin: 0;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero-content p {
  font-size: 18px;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

.hero-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #d9e2ff;
  font-size: 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.7);
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.2em;
  display: flex;
  align-items: center;
  gap: 12px;
}

.scroll-hint .dot {
  width: 4px;
  height: 16px;
  border-radius: 999px;
  background: var(--blue);
  animation: scrollPulse 1.4s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(6px); opacity: 1; }
  100% { transform: translateY(0); opacity: 0.4; }
}

.work-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 320px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

.work-cover {
  flex: 1;
  background: linear-gradient(120deg, rgba(75, 123, 255, 0.2), rgba(15, 23, 42, 0.05));
  display: flex;
  align-items: flex-end;
  padding: 16px;
  position: relative;
  overflow: hidden;
}

.cover-shift {
  position: absolute;
  inset: -20% -10%;
  background: radial-gradient(circle at 20% 20%, rgba(75, 123, 255, 0.22), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(15, 23, 42, 0.08), transparent 45%);
  transform: translateY(0);
  transition: transform 0.2s ease-out;
  z-index: 0;
}

.media-frame {
  align-items: center;
  justify-content: center;
}

.work-cover .badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.9);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
}

.detail-cover-img {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  margin-top: 16px;
  display: none;
  border-radius: 10px;
  background: #0f172a;
}

.cover-content {
  position: relative;
  z-index: 1;
}

.work-info {
  padding: 16px;
  display: grid;
  gap: 6px;
}

.work-info h3 {
  margin: 0;
  font-size: 18px;
  color: var(--ink);
}

.work-info p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.platform-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.platform-pill {
  border: 1px solid #e2e8f0;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  color: var(--muted);
}

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 68px;
  z-index: 6;
  padding: 12px 0;
  background: linear-gradient(180deg, rgba(246, 247, 251, 0.98), rgba(246, 247, 251, 0.85));
  backdrop-filter: blur(8px);
}

.filter-sentinel {
  height: 1px;
}

.filter-btn {
  height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid #d9e2ff;
  background: #fff;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.filters.is-stuck {
  padding: 12px 12px;
  border-radius: 999px;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.9);
}

.filter-label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.year-group {
  margin-top: 28px;
}

.year-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 16px;
}

.year-title span {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

.year-empty {
  background: #fff;
  border: 1px dashed #e2e8f0;
  border-radius: 12px;
  padding: 20px;
  color: var(--muted);
  font-size: 14px;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-item span {
  font-size: 13px;
  color: var(--muted);
}

.timeline-item h4 {
  margin: 0 0 6px;
  color: var(--ink);
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.skill-card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  border: 1px solid #eef2ff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skill-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
}

.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.contact-lines {
  margin: 0 0 20px;
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid #d9e2ff;
  background: #fff;
  font-size: 12px;
  color: var(--muted);
}

.stills-grid {
  margin-top: 24px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stills-grid-single {
  grid-template-columns: 1fr;
}

.still-card {
  background: linear-gradient(120deg, rgba(75, 123, 255, 0.18), rgba(15, 23, 42, 0.04));
  border-radius: 12px;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: rgba(15, 23, 42, 0.5);
}

.still-card img {
  width: 50%;
  height: auto;
  object-fit: contain;
}

.stills-grid-single .still-card img {
  width: 50%;
}

.social-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.social-pill {
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid #d9e2ff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--muted);
  background: #fff;
}

.service-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  border: 1px solid #eef2ff;
  min-height: 160px;
  display: grid;
  gap: 10px;
  box-shadow: var(--shadow);
}

.service-card span {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.service-card h3 {
  margin: 0;
  color: var(--ink);
}

.service-card p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.float-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 16px 32px rgba(75, 123, 255, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease;
}

.float-contact:hover {
  transform: translateY(-2px);
  background: var(--blue-600);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.5);
  z-index: 50;
  backdrop-filter: blur(6px);
}

.modal.active {
  display: flex;
}

.modal-card {
  width: min(1000px, 92vw);
  height: min(70vh, 720px);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  overflow: hidden;
}

.modal-media {
  background: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 16px;
}

.media-placeholder {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  text-align: center;
  padding: 0 20px;
}

.detail-media-img {
  width: 50%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
  display: none;
  background: #0f172a;
}

.modal-cover-img {
  max-width: 90%;
  max-height: 90%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: none;
  background: #0f172a;
}

.modal-media iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.modal-info {
  padding: 28px;
  display: grid;
  gap: 12px;
  align-content: start;
  overflow: auto;
}

.modal-info h3 {
  margin: 0;
  font-size: 22px;
  color: var(--ink);
}

.modal-info p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.modal-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid #d9e2ff;
  background: #fff;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active,
.tab-btn:hover {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.modal-panel {
  display: none;
  gap: 12px;
}

.modal-panel.active {
  display: grid;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  font-size: 18px;
}

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal {
  opacity: 0;
  transform: translateY(20px);
}

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

.footer {
  padding: 40px 0;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .contact-grid { grid-template-columns: 1fr; }
  .modal-card { grid-template-columns: 1fr; height: 80vh; }
  .stills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .nav-inner { flex-direction: column; gap: 12px; }
  .nav-links { flex-wrap: wrap; justify-content: center; }
  .hero-content { text-align: center; margin: 0 auto; }
  .hero-cta { justify-content: center; }
  .timeline-item { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; }
  .modal-card { height: 88vh; }
  .stills-grid { grid-template-columns: 1fr; }
}