:root {
  --ink: #ffffff;
  --ink-soft: #b4a8a1;
  --ink-faint: #786d67;
  --paper: #1a1512;
  --mist: #241d1a;
  --mist-2: #2e2622;
  --line: rgba(255, 255, 255, 0.15);
  --line-soft: rgba(255, 255, 255, 0.08);
  --accent: #f9a467;
  --accent-hover: #ffb782;
  --night: #100b08;
  --night-raised: #1a1512;
  --night-text: #ffffff;
  --night-text-soft: #b4a8a1;
  --night-line: rgba(255, 255, 255, 0.15);

  --container: 1120px;
  --radius-s: 12px;
  --radius-m: 20px;
  --radius-l: 32px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  transition: box-shadow 0.3s var(--ease);
}

.navbar::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transition: background 0.3s var(--ease);
}

.navbar.scrolled {
  box-shadow: 0 1px 0 var(--night-line);
}

.navbar.scrolled::before {
  background: rgba(0, 0, 0, 0.72);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--night-text);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.nav-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  color: var(--night-text-soft);
  font-size: 0.82rem;
  font-weight: 400;
  transition: color 0.2s var(--ease);
}

.nav-link:hover { color: var(--night-text); }

.language-selector { display: flex; gap: 6px; }

.lang-btn {
  background: none;
  border: none;
  padding: 5px;
  border-radius: 8px;
  opacity: 0.45;
  transition: opacity 0.2s var(--ease), background 0.2s var(--ease);
  line-height: 0;
}

.lang-btn.active,
.lang-btn:hover { opacity: 1; background: rgba(255, 255, 255, 0.08); }

.flag-icon { width: 18px; height: 18px; border-radius: 50%; object-fit: cover; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 8px;
}

.hamburger .bar {
  width: 20px;
  height: 1.5px;
  background: var(--night-text);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.hamburger.active .bar:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(120% 90% at 50% 0%, #2a1f18 0%, #100b08 62%);
  color: var(--night-text);
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 32px;
  text-align: center;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin-bottom: 28px;
}

.hello-line {
  display: block;
  font-size: 0.34em;
  font-weight: 400;
  color: var(--night-text-soft);
  margin-bottom: 6px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.7s var(--ease) 0.1s, transform 0.7s var(--ease) 0.1s;
}

.name-emphasis {
  display: block;
  background: linear-gradient(180deg, #fff 0%, #f9a467 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s var(--ease) 0.25s, transform 0.8s var(--ease) 0.25s;
}

.hero.in .hello-line,
.hero.in .name-emphasis { opacity: 1; transform: translateY(0); }

.hero-role {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--night-text);
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease) 0.4s, transform 0.7s var(--ease) 0.4s;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--night-text-soft);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.6;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease) 0.5s, transform 0.7s var(--ease) 0.5s;
}

.hero.in .hero-role,
.hero.in .hero-description,
.hero.in .hero-badges,
.hero.in .hero-buttons { opacity: 1; transform: translateY(0); }

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease) 0.6s, transform 0.7s var(--ease) 0.6s;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--night-line);
  font-size: 0.82rem;
  color: var(--night-text-soft);
}

.hero-badge i { color: var(--accent); font-size: 0.78rem; }

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease) 0.7s, transform 0.7s var(--ease) 0.7s;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), opacity 0.2s var(--ease);
}

.btn-primary { background: var(--accent); color: #1a1512; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--night-text);
  border: 1px solid var(--night-line);
}
.btn-secondary:hover { background: rgba(255, 255, 255, 0.14); transform: translateY(-1px); }

.hero-image { display: none; }

section:not(.hero) {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
section.revealed { opacity: 1; transform: translateY(0); }

.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }

.section-title {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle { color: var(--ink-soft); font-size: 1.05rem; }

.skills {
  background: var(--paper);
  padding: 120px 0;
}

.tabs {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.tab {
  background: var(--mist);
  border: 1px solid transparent;
  color: var(--ink-soft);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.tab:hover { color: var(--ink); }

.tab.active {
  background: var(--ink);
  color: var(--paper);
}

.skill-panel { display: none; }
.skill-panel.active {
  display: block;
  animation: fade-in 0.35s var(--ease);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 820px;
  margin: 0 auto;
}

.skill-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

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

.skill-chip i { color: var(--accent); font-size: 0.95rem; }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.projects { background: var(--mist); padding: 120px 0; }

.project-filters {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.2s var(--ease);
}

.filter-btn:hover { border-color: var(--ink-faint); color: var(--ink); }

.filter-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.project-card, .feature-card {
  background: var(--paper);
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.25);
}

.project-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--mist-2);
  overflow: hidden;
}

.project-media-img,
.project-media-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, hsl(var(--hue, 210) 60% 92%), hsl(calc(var(--hue, 210) + 40) 55% 82%));
}

.media-fallback span {
  font-size: 3rem;
  font-weight: 600;
  color: hsl(var(--hue, 210) 40% 30%);
  letter-spacing: -0.02em;
}

.media-fallback.media-gallery i { font-size: 2rem; color: var(--ink-faint); }

.project-content { padding: 24px 26px 26px; }

.project-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.project-content p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin-bottom: 14px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-row:empty { display: none; margin: 0; }

.tag {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--mist);
  color: var(--ink-soft);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--accent);
  border: none;
  background: none;
  padding: 0;
}

.project-link:hover { color: var(--accent-hover); }
.project-link i { font-size: 0.78rem; }

.feature-card {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
}

.feature-visual {
  background: linear-gradient(160deg, #1a1512, #241d1a);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}

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

.pipeline-stage {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--night-line);
  color: var(--night-text);
  font-size: 0.8rem;
  font-weight: 500;
}

.pipeline-stage i { color: var(--accent); }

.pipeline-label {
  color: var(--night-text-soft);
  font-size: 0.78rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pipeline-label i { color: var(--accent); }

.feature-content { padding: 40px; display: flex; flex-direction: column; justify-content: center; }
.feature-content h3 { font-size: 1.4rem; margin-bottom: 12px; }
.feature-content p { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.6; margin-bottom: 16px; }

@media (max-width: 860px) {
  .feature-card { grid-template-columns: 1fr; }
}

.posters {
  background: var(--night);
  color: var(--night-text);
  padding: 120px 0;
}

.posters .section-subtitle { color: var(--night-text-soft); }

.posters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.poster-card {
  position: relative;
  border-radius: var(--radius-s);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  cursor: pointer;
}

.poster-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.poster-card:hover img { transform: scale(1.05); }

.poster-card figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 32px 16px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.6) 50%, transparent 100%);
}

.poster-title { font-size: 1.05rem; font-weight: 600; color: #ffffff; text-shadow: 0 2px 4px rgba(0,0,0,0.8); }

.poster-card .tag { background: rgba(255, 255, 255, 0.25); color: #ffffff; font-weight: 600; text-shadow: 0 1px 2px rgba(0,0,0,0.8); box-shadow: 0 2px 6px rgba(0,0,0,0.4); }

.contact {
  background: var(--night-raised);
  color: var(--night-text);
  padding: 120px 0;
}

.contact-content {
  display: grid;
  gap: 14px;
  max-width: 560px;
  margin: 0 auto;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 24px;
  border-radius: var(--radius-s);
  border: 1px solid var(--night-line);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.contact-item:hover { background: rgba(255, 255, 255, 0.05); transform: translateX(4px); }

.contact-item i {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 113, 227, 0.15);
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item h3 { font-size: 0.78rem; font-weight: 500; color: var(--night-text-soft); margin-bottom: 2px; }
.contact-item p { font-size: 0.98rem; font-weight: 500; }

.footer {
  background: var(--night);
  color: var(--night-text-soft);
  text-align: center;
  padding: 28px 0;
  font-size: 0.8rem;
  border-top: 1px solid var(--night-line);
}

.no-scroll { overflow: hidden; }

.viewer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.viewer-overlay.in { opacity: 1; }

.viewer-stage { max-width: 92vw; max-height: 88vh; }

.viewer-image {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

.viewer-nav, .viewer-close {
  position: fixed;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  transition: background 0.2s ease, transform 0.2s ease;
}

.viewer-nav:hover, .viewer-close:hover { background: rgba(255, 255, 255, 0.22); }

.viewer-prev { left: 20px; top: 50%; transform: translateY(-50%); }
.viewer-next { right: 20px; top: 50%; transform: translateY(-50%); }
.viewer-close { top: 20px; right: 20px; }

@media (max-width: 860px) {
  .nav-menu {
    position: fixed;
    top: 52px;
    right: 0;
    bottom: 0;
    left: 0;
    background: var(--night);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s var(--ease);
  }
  .nav-menu.active { opacity: 1; visibility: visible; }
  .nav-menu .nav-item { width: 100%; text-align: center; }
  .nav-link { display: block; padding: 16px 0; font-size: 1.1rem; }
  .hamburger { display: flex; }

  .skills, .projects, .posters, .contact { padding: 88px 0; }
  .projects-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .container { padding: 0 20px; }
  .hero-container { padding: 0 20px; }
  .viewer-prev { left: 8px; }
  .viewer-next { right: 8px; }
}