*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --surface-2: #1c1c1c;
  --border: #252525;
  --accent: #e8522a;
  --accent-glow: rgba(232, 82, 42, 0.12);
  --text: #f0ede8;
  --text-2: #8a8a8a;
  --text-3: #4a4a4a;
  --font-display: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --max-w: 1200px;
  --nav-h: 64px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--accent); color: var(--bg);
  padding: 8px 16px; z-index: 1000; transition: top 0.2s;
}
.skip-link:focus { top: 0; }

body::before {
  content: ''; position: fixed; inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(255,255,255,0.018) 40px, rgba(255,255,255,0.018) 41px),
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(255,255,255,0.018) 40px, rgba(255,255,255,0.018) 41px);
  pointer-events: none; z-index: 0;
}
body::after {
  content: ''; position: fixed; inset: 0; opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
}

.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); z-index: 100;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent; transition: border-color 0.3s;
}
nav.scrolled { border-color: 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-display); font-size: 1.1rem; font-weight: 700; }
.accent-dot { color: var(--accent); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 0.9rem; font-weight: 500; position: relative; padding-bottom: 4px; }
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px; background: var(--accent); transition: width 0.3s var(--ease);
}
.nav-links a:hover::after { width: 100%; }

.burger {
  display: none; background: none; border: none; cursor: pointer;
  width: 44px; height: 44px;
  flex-direction: column; justify-content: center; align-items: center; gap: 6px;
}
.burger-line {
  display: block; width: 24px; height: 2px;
  background: var(--text); transition: transform 0.3s ease, opacity 0.3s ease;
}
.burger.open .burger-line:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.open .burger-line:nth-child(2) { opacity: 0; }
.burger.open .burger-line:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

#hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  padding: calc(var(--nav-h) + 40px) 24px 80px;
  overflow: hidden; z-index: 1;
  background: transparent;
}
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  animation: heroZoom 25s ease-in-out infinite alternate;
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}
@keyframes heroZoom { from { transform: scale(1); } to { transform: scale(1.08); } }

.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(10,10,10,0.6) 0%, rgba(10,10,10,0.3) 40%, transparent 70%, transparent 100%);
}

.hero-content { display: flex; flex-direction: column; gap: 16px; max-width: var(--max-w); width: 100%; margin: 0 auto; }
.hero-label {
  font-family: var(--font-display); font-size: 0.72rem;
  color: var(--accent); letter-spacing: 0.2em;
  animation: fadeUp 0.6s var(--ease) 0.1s both;
}
.hero-title {
  font-size: clamp(3rem, 9vw, 7.5rem);
  letter-spacing: -0.04em; line-height: 0.92;
  animation: fadeUp 0.6s var(--ease) 0.2s both;
}
.hero-sub {
  font-weight: 300; font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-2); animation: fadeUp 0.6s var(--ease) 0.3s both;
}
.hero-line {
  width: 60px; height: 1px; background: var(--accent);
  animation: fadeUp 0.6s var(--ease) 0.35s both;
}
.hero-tools {
  font-family: var(--font-display); font-size: 0.68rem;
  color: var(--text-3); letter-spacing: 0.05em;
  animation: fadeUp 0.6s var(--ease) 0.4s both;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-size: 0.85rem;
  padding: 12px 28px; border: 1px solid var(--accent); color: var(--accent);
  width: fit-content;
  transition: background 0.3s, color 0.3s, transform 0.3s;
  animation: fadeUp 0.6s var(--ease) 0.5s both;
}
.hero-cta:hover { background: var(--accent); color: var(--bg); transform: translateY(-2px); }
.hero-cta .arrow { display: inline-block; transition: transform 0.3s; }
.hero-cta:hover .arrow { transform: translateY(3px); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.scroll-hint {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  animation: fadeUp 0.6s var(--ease) 0.8s both;
}
.scroll-hint span {
  font-family: var(--font-display); font-size: 0.58rem;
  color: var(--text-3); letter-spacing: 0.15em; text-transform: uppercase;
}
.scroll-hint::after {
  content: ''; width: 1px; height: 28px; background: var(--text-3);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}

#portfolio {
  padding: 100px 24px; max-width: var(--max-w);
  margin: 0 auto; position: relative; z-index: 1;
}
.section-head { display: flex; align-items: center; gap: 16px; margin-bottom: 48px; }
.section-head .bar { width: 40px; height: 2px; background: var(--accent); flex-shrink: 0; }
.section-head h2 { font-size: 1.2rem; letter-spacing: 0.06em; }

.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }

.card {
  position: relative; overflow: hidden; border-radius: 8px;
  border: 1px solid var(--border);
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.card:hover { border-color: var(--accent); box-shadow: 0 0 40px var(--accent-glow); }

.card--featured { grid-column: span 6; }
.card--large { grid-column: span 3; grid-row: span 2; }
.card--medium { grid-column: span 3; }
.card--small { grid-column: span 2; }

.card__img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform 0.6s var(--ease);
}
.card--featured .card__img { aspect-ratio: 21/9; }
.card--medium .card__img { aspect-ratio: 16/10; }
.card--small .card__img { aspect-ratio: 4/3; }
.card:hover .card__img { transform: scale(1.05); }

.card__info {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.4) 35%, transparent 55%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem;
}
.card__cat {
  font-family: var(--font-display); font-size: 0.58rem;
  color: var(--accent); letter-spacing: 0.1em; margin-bottom: 6px;
}
.card__title { font-size: 1.2rem; margin-bottom: 4px; }
.card--featured .card__title { font-size: 2rem; }
.card--large .card__title { font-size: 1.5rem; }

.card__desc {
  font-size: 0.82rem; color: var(--text-2);
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.card--featured .card__desc,
.card--large .card__desc { -webkit-line-clamp: 3; }

.card__num {
  position: absolute; top: 1rem; right: 1.25rem;
  font-family: var(--font-display); font-size: 3rem;
  color: var(--text); opacity: 0.06; line-height: 1; pointer-events: none;
}
.card--featured .card__num { font-size: 5rem; top: 1.5rem; right: 2rem; }

.card__link { position: absolute; inset: 0; z-index: 2; }

.card__placeholder {
  width: 100%; height: 100%; min-height: 220px;
  transition: transform 0.6s var(--ease);
}
.card:hover .card__placeholder { transform: scale(1.05); }
.card__placeholder--warm { background: linear-gradient(135deg, #1a0808 0%, #0d0505 50%, #0a0a0a 100%); }
.card__placeholder--cool { background: linear-gradient(135deg, #0a0818 0%, #08050d 50%, #0a0a0a 100%); }

.card__tools {
  font-family: var(--font-display);
  font-size: 0.62rem;
  color: var(--text-3);
  letter-spacing: 0.05em;
  margin-top: 8px;
}

.card__badge {
  position: absolute;
  top: 1rem;
  left: 1.25rem;
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: 3px;
  z-index: 3;
}

.card__badge--wip {
  background: rgba(232, 82, 42, 0.15);
  color: var(--accent);
  border: 1px solid rgba(232, 82, 42, 0.3);
}

.card__badge--coming {
  background: rgba(138, 138, 138, 0.12);
  color: var(--text-2);
  border: 1px solid rgba(138, 138, 138, 0.25);
}

.card--dimmed {
  opacity: 0.6;
}
.card--dimmed:hover {
  opacity: 1;
}

#about {
  padding: 100px 24px; max-width: var(--max-w);
  margin: 0 auto; position: relative; z-index: 1;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 280px;
  gap: 60px; align-items: start;
}
.about-text { display: flex; flex-direction: column; gap: 20px; }
.about-text .label {
  font-family: var(--font-display); font-size: 0.7rem;
  color: var(--accent); letter-spacing: 0.15em;
}
.about-text h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
.about-text > p { color: var(--text-2); line-height: 1.75; }

.skill-group { margin-top: 4px; }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 20px; }
.skill-group h4 {
  font-family: var(--font-display); font-size: 0.68rem;
  color: var(--accent); letter-spacing: 0.1em;
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.skill-tags span {
  font-family: var(--font-display); font-size: 0.68rem;
  padding: 5px 12px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 4px;
  color: var(--text-2); transition: border-color 0.3s, color 0.3s;
}
.skill-tags span:hover { border-color: var(--accent); color: var(--text); }

.about-photo { display: flex; flex-direction: column; gap: 12px; }
.about-photo img {
  width: 100%; aspect-ratio: 3/4; object-fit: cover;
  border-radius: 8px; border: 1px solid var(--border);
}
.about-photo .edu {
  font-family: var(--font-display); font-size: 0.6rem;
  color: var(--text-3); text-align: right;
}

#blog {
  padding: 100px 24px; max-width: var(--max-w);
  margin: 0 auto; position: relative; z-index: 1;
}
.blog-intro { color: var(--text-2); max-width: 600px; margin-bottom: 40px; line-height: 1.7; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.blog-card {
  border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.blog-card:hover { border-color: var(--accent); transform: translateY(-4px); }

.blog-card__thumb {
  aspect-ratio: 16/9; display: flex;
  align-items: center; justify-content: center;
}
.blog-card__thumb--1 { background: linear-gradient(135deg, #1a1008, #0a0a0a); }
.blog-card__thumb--2 { background: linear-gradient(135deg, #081a10, #0a0a0a); }
.blog-card__thumb--3 { background: linear-gradient(135deg, #08101a, #0a0a0a); }
.blog-card__thumb span {
  font-family: var(--font-display); font-size: 0.6rem;
  color: var(--text-3); letter-spacing: 0.1em;
}
.blog-card__body { padding: 1.25rem; }
.blog-card__tag {
  font-family: var(--font-display); font-size: 0.58rem;
  color: var(--accent); letter-spacing: 0.1em; margin-bottom: 8px;
}
.blog-card__title { font-size: 1rem; margin-bottom: 8px; }
.blog-card__desc { font-size: 0.82rem; color: var(--text-2); line-height: 1.5; }
.blog-card__status {
  font-family: var(--font-display); font-size: 0.6rem;
  color: var(--text-3); margin-top: 14px; letter-spacing: 0.08em;
}

#contact {
  padding: 120px 24px; max-width: var(--max-w);
  margin: 0 auto; text-align: center; position: relative; z-index: 1;
}
.contact-inner { display: flex; flex-direction: column; align-items: center; gap: 20px; }
.contact-inner .label {
  font-family: var(--font-display); font-size: 0.7rem;
  color: var(--accent); letter-spacing: 0.15em;
}
.contact-inner h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
.contact-inner .sub { color: var(--text-2); max-width: 500px; }

.email-btn {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: var(--accent); padding: 16px 36px;
  border: 1px solid var(--accent);
  transition: background 0.3s, color 0.3s, transform 0.3s; margin-top: 8px;
}
.email-btn:hover { background: var(--accent); color: var(--bg); transform: translateY(-2px); }

.socials {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px; margin-top: 16px;
}
.socials a {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-size: 0.78rem;
  padding: 10px 20px; border: 1px solid var(--border); border-radius: 4px;
  transition: background 0.3s, border-color 0.3s;
}
.socials a:hover { background: var(--surface); border-color: var(--accent); }
.socials svg { width: 16px; height: 16px; stroke: currentColor; }

footer {
  padding: 32px 24px; text-align: center;
  border-top: 1px solid var(--border); position: relative; z-index: 1;
}
footer p { font-family: var(--font-display); font-size: 0.68rem; color: var(--text-3); }

@media (max-width: 1024px) {
  .bento { grid-template-columns: repeat(4, 1fr); }
  .card--featured { grid-column: span 4; }
  .card--large { grid-column: span 2; grid-row: span 2; }
  .card--medium { grid-column: span 2; }
  .card--small { grid-column: span 2; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-photo { max-width: 300px; margin: 0 auto; }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid .blog-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    flex-direction: column; align-items: center;
    padding: 32px 0; gap: 24px;
    transform: translateY(-100%); opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .burger { display: flex; }
  #hero { padding: calc(var(--nav-h) + 40px) 20px 60px; min-height: 90svh; }
  .hero-title { font-size: 2.5rem; }
  .scroll-hint { display: none; }
  #portfolio, #about, #blog, #contact { padding: 60px 20px; }
  .bento { grid-template-columns: 1fr; }
  .card--featured, .card--large, .card--medium, .card--small {
    grid-column: span 1; grid-row: span 1;
  }
  .card--featured .card__img { aspect-ratio: 16/9; }
  .card--large .card__img { aspect-ratio: 3/4; min-height: 300px; }
  .card__title { font-size: 1.1rem; }
  .card--featured .card__title { font-size: 1.4rem; }
  .card--large .card__title { font-size: 1.2rem; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-grid .blog-card:last-child { grid-column: span 1; }
  .socials { flex-direction: column; align-items: center; }
  .socials a { width: 100%; max-width: 280px; justify-content: center; }
  .email-btn { font-size: 0.85rem; padding: 14px 28px; }
}

@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vtOut 0.2s ease forwards; }
::view-transition-new(root) { animation: vtIn 0.3s ease forwards; }
@keyframes vtOut { to { opacity: 0; } }
@keyframes vtIn { from { opacity: 0; } }