/* omotech — "Gece Atölyesi" (sinematik karanlık)
   Layout: tam genişlik sahneler; her sahnede tek odak, tek ışık rengi (kor/amber). Ayrıntı: DESIGN.md */
:root {
  --night: #06080F;
  --deep: #0C111D;
  --deep-2: #111829;
  --line: #1C2436;
  --fog: #8B93A7;
  --paper: #ECEEF4;
  --ember: #F2A541;
  --ember-glow: rgba(242, 165, 65, .16);
  --ok: #4FD1A5;

  --lang-cs: #9B7BFF;
  --lang-py: #4E8FE6;
  --lang-cpp: #F06A8B;
  --lang-ts: #3FC1C9;
  --lang-other: #5A6378;

  --f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body: "Manrope", "Segoe UI", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --ease: cubic-bezier(.16, 1, .3, 1);
  --wrap: 1200px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { background: var(--night); scroll-behavior: smooth; }
body {
  margin: 0; background: var(--night); color: var(--paper);
  font-family: var(--f-body); font-size: 16px; line-height: 1.6;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: var(--ember); color: var(--night); }
:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap {
  max-width: var(--wrap); margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
@media (min-width: 720px) {
  .wrap { padding-left: max(32px, env(safe-area-inset-left, 0px)); padding-right: max(32px, env(safe-area-inset-right, 0px)); }
}

h1, h2, h3, h4 { font-family: var(--f-display); margin: 0; letter-spacing: -.02em; text-wrap: balance; }
h2 { font-size: clamp(36px, 5.2vw, 64px); line-height: 1; font-weight: 700; }
p { margin: 0; }
.lede { color: var(--fog); font-size: clamp(16px, 1.5vw, 19px); max-width: 60ch; }
.eyebrow {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ember); display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; }
kbd {
  font-family: var(--f-mono); font-size: 12px; padding: 2px 7px; border-radius: 6px;
  border: 1px solid var(--line); border-bottom-width: 2px; background: var(--deep-2); color: var(--paper);
}

/* ---------- scroll progress ---------- */
.progress { position: fixed; inset: 0 0 auto; height: 2px; z-index: 100; background: var(--ember); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 20px; border-radius: 999px;
  font: 600 15px/1 var(--f-body); text-decoration: none; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--paper);
  transition: transform .4s var(--ease), border-color .3s, box-shadow .4s, background .3s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--fog); }
.btn-ember { background: var(--ember); border-color: var(--ember); color: var(--night); }
.btn-ember:hover { border-color: var(--ember); box-shadow: 0 12px 40px -8px var(--ember); }
.btn-sm { padding: 9px 14px; font-size: 13.5px; }
.btn .arr { transition: transform .4s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }
.btn small { font-weight: 500; opacity: .7; font-size: 12px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in srgb, var(--night) 72%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.logo { display: flex; align-items: center; gap: 2px; font: 800 22px/1 var(--f-display); letter-spacing: -.03em; text-decoration: none; }
.logo .br { color: var(--ember); font-family: var(--f-mono); font-weight: 500; font-size: .85em; }
.logo .cur { width: .5em; height: 2px; background: var(--ember); align-self: flex-end; margin: 0 0 4px 3px; animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--fog); }
.nav-links a { text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--paper); }
@media (max-width: 780px) { .nav-links { display: none; } }
.nav-right { display: flex; align-items: center; gap: 10px; }
.lang-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 999px; background: var(--deep); }
.lang-switch button {
  font: 500 12px/1 var(--f-mono); letter-spacing: .06em; padding: 7px 10px; border-radius: 999px;
  border: 0; background: transparent; color: var(--fog); cursor: pointer; transition: background .3s, color .3s;
}
.lang-switch button:hover { color: var(--paper); }
.lang-switch button[aria-pressed="true"] { background: var(--ember); color: var(--night); }
@media (max-width: 420px) { .gh-label { display: none; } }

/* ---------- hero ---------- */
.hero { position: relative; isolation: isolate; overflow: hidden; padding-block: clamp(72px, 11vw, 140px) clamp(56px, 8vw, 96px); }
#sky { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 45%; z-index: -1; background: linear-gradient(transparent, var(--night)); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
.hero h1 { font-size: clamp(46px, 8vw, 108px); line-height: .93; font-weight: 800; letter-spacing: -.045em; margin-block: 22px 26px; }
.hero h1 .thin { font-weight: 300; color: var(--fog); }
.hero h1 .glow { color: var(--ember); text-shadow: 0 0 40px rgba(242, 165, 65, .35); }
.w { display: inline-block; animation: rise 1.1s var(--ease) both; animation-delay: calc(var(--i) * 85ms + 120ms); }
@keyframes rise { from { opacity: 0; transform: translateY(.45em) rotate(2deg); filter: blur(10px); } }
.fade { animation: fadeUp 1s var(--ease) both; animation-delay: var(--d, 0ms); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-top: 64px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.stats > div { background: color-mix(in srgb, var(--night) 88%, transparent); padding: 18px 20px; display: grid; gap: 4px; }
.stats b { font: 800 30px/1 var(--f-display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stats span { color: var(--fog); font-size: 13px; }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* terminal */
.term {
  border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  background: color-mix(in srgb, var(--deep) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 40px 90px -30px #000, inset 0 1px 0 rgba(255, 255, 255, .04);
  font: 13px/1.75 var(--f-mono);
  transform: perspective(1000px) rotateY(var(--ry, -7deg)) rotateX(var(--rx, 3deg));
  transition: transform .9s var(--ease);
}
.term-bar { display: flex; align-items: center; gap: 8px; padding: 11px 14px; border-bottom: 1px solid var(--line); color: var(--fog); font-size: 12px; }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.term-bar span { margin-left: 8px; }
.term-body { padding: 18px; min-height: 290px; white-space: pre-wrap; word-break: break-all; color: var(--fog); }
.term-body .pr { color: var(--ember); }
.term-body .cmd { color: var(--paper); }
.term-body .ok { color: var(--ok); }
.caret { display: inline-block; width: .6em; height: 1.1em; vertical-align: -.2em; background: var(--ember); animation: blink 1s steps(2) infinite; }

/* ---------- section shell ---------- */
.section { padding-block: clamp(90px, 11vw, 150px); }
.head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 56px; }
.head > div { display: grid; gap: 16px; }

/* ---------- featured scenes ---------- */
.scene { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.scene + .scene { margin-top: clamp(110px, 14vw, 180px); }
.scene.flip { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); }
.scene.flip .scene-media { order: 2; }
@media (max-width: 960px) { .scene, .scene.flip { grid-template-columns: minmax(0, 1fr); } .scene.flip .scene-media { order: 0; } }
.scene-copy { display: grid; gap: 18px; min-width: 0; }
.scene-copy h3 { font-size: clamp(38px, 5vw, 66px); font-weight: 800; letter-spacing: -.04em; line-height: .95; }
.scene-copy .tag { font-family: var(--f-mono); color: var(--fog); font-size: 13px; }
.scene-copy blockquote { margin: 0; padding-left: 16px; border-left: 2px solid var(--ember); font-family: var(--f-display); font-size: 20px; font-weight: 300; font-style: italic; color: var(--paper); }
.facts { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 10px; }
.facts li { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 16px; padding-top: 10px; border-top: 1px dashed var(--line); font-size: 15px; }
.facts li b { font-family: var(--f-mono); font-weight: 400; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--fog); padding-top: 3px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }

/* gallery */
.gallery { position: relative; border-radius: 20px; overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16 / 9; max-width: 100%; background: var(--deep); box-shadow: 0 50px 100px -40px #000; }
.gallery img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.06); transition: opacity 1.1s var(--ease), transform 6s linear; }
.gallery img.on { opacity: 1; transform: scale(1); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 18px 14px;
  background: linear-gradient(transparent, rgba(6, 8, 15, .9)); font-size: 14px; color: var(--paper);
}
.gallery figcaption b { color: var(--ember); font-weight: 600; }
.thumbs { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.thumbs button { padding: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; cursor: pointer; background: none; aspect-ratio: 16 / 9; opacity: .5; transition: opacity .3s, border-color .3s; }
.thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.thumbs button[aria-pressed="true"], .thumbs button:hover { opacity: 1; border-color: var(--ember); }

/* train logo scene */
.poster { position: relative; display: grid; place-items: center; aspect-ratio: 1; max-width: 520px; width: 100%; margin-inline: auto; }
.poster::before { content: ""; position: absolute; inset: 8%; border-radius: 50%; background: radial-gradient(circle, var(--ember-glow), transparent 65%); filter: blur(20px); }
.poster img { position: relative; width: 82%; border-radius: 22%; animation: float 7s ease-in-out infinite; filter: drop-shadow(0 40px 60px rgba(0, 0, 0, .6)); }
@keyframes float { 50% { transform: translateY(-14px) rotate(-1.5deg); } }
.snow { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.keys { display: flex; flex-wrap: wrap; gap: 8px 16px; color: var(--fog); font-size: 13.5px; }
.keys span { display: inline-flex; align-items: center; gap: 6px; }

/* YamanAI duo */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 760px) { .duo { grid-template-columns: minmax(0, 1fr); } }
.chat {
  border: 1px solid var(--line); border-radius: 20px; background: var(--deep); padding: 22px;
  display: grid; gap: 12px; font-size: 14.5px; min-height: 260px; align-content: start;
}
.bubble { max-width: 88%; padding: 10px 14px; border-radius: 14px; }
.bubble.me { justify-self: end; background: var(--deep-2); border: 1px solid var(--line); }
.bubble.ai { background: var(--ember-glow); border: 1px solid color-mix(in srgb, var(--ember) 30%, transparent); }
.chat-label { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--fog); display: flex; justify-content: space-between; }

/* ---------- project grid ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: 500 13px/1 var(--f-mono); padding: 9px 14px; border-radius: 999px; border: 1px solid var(--line);
  background: transparent; color: var(--fog); cursor: pointer; transition: all .3s;
}
.chip:hover { color: var(--paper); border-color: var(--fog); }
.chip[aria-pressed="true"] { background: var(--ember); border-color: var(--ember); color: var(--night); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 980px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid { grid-template-columns: minmax(0, 1fr); } }
.card {
  --mx: 50%; --my: 50%;
  position: relative; display: flex; flex-direction: column; gap: 14px; padding: 24px; border-radius: 20px;
  border: 1px solid var(--line); overflow: hidden; min-width: 0;
  background: radial-gradient(380px circle at var(--mx) var(--my), var(--ember-glow), transparent 60%), var(--deep);
  transition: border-color .4s, opacity .45s var(--ease), transform .45s var(--ease);
}
.card:hover { border-color: color-mix(in srgb, var(--ember) 40%, var(--line)); }
.card.hide { display: none; }
.card-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; font: 12px var(--f-mono); color: var(--fog); }
.card-top .cat { text-transform: uppercase; letter-spacing: .1em; color: var(--ember); }
.card h3 { font-size: 24px; font-weight: 700; letter-spacing: -.02em; overflow-wrap: anywhere; }
.card p { color: var(--fog); font-size: 14.5px; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line); font: 12px var(--f-mono); color: var(--fog); }
.meta .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: 0; }
.card .actions { margin-top: 0; }
.card.soon { border-style: dashed; }
.badge { font: 500 11px/1 var(--f-mono); padding: 4px 8px; border-radius: 999px; background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); }
.badge.wait { background: var(--deep-2); color: var(--fog); }

/* ---------- language map ---------- */
.langs { border-block: 1px solid var(--line); background: radial-gradient(60% 120% at 50% 100%, var(--ember-glow), transparent 70%); }
.bar { display: flex; height: 18px; border-radius: 999px; overflow: hidden; background: var(--deep-2); margin-top: 8px; }
.bar i { display: block; height: 100%; width: 0; transition: width 1.6s var(--ease); }
.bar.go i { width: var(--w); }
.legend { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 20px; margin-top: 32px; }
@media (max-width: 800px) { .legend { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.legend div { display: grid; gap: 4px; }
.legend b { font: 800 clamp(30px, 4vw, 44px)/1 var(--f-display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.legend span { color: var(--fog); font-size: 13.5px; }
.legend span::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--c); margin-right: 8px; }

/* ---------- contribute ---------- */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; counter-reset: s; }
@media (max-width: 900px) { .steps { grid-template-columns: minmax(0, 1fr); } }
.step { border: 1px solid var(--line); border-radius: 20px; padding: 24px; display: grid; gap: 12px; align-content: start; background: var(--deep); min-width: 0; }
.step::before { counter-increment: s; content: "0" counter(s); font: 500 13px var(--f-mono); color: var(--ember); }
.step h3 { font-size: 22px; }
.step p { color: var(--fog); font-size: 14.5px; }
.code { display: flex; align-items: center; gap: 10px; background: var(--night); border: 1px solid var(--line); border-radius: 12px; padding: 10px 10px 10px 14px; font: 12.5px var(--f-mono); color: var(--paper); min-width: 0; }
.code code { flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap; }
.copy { flex: none; font: 500 11px var(--f-mono); border: 1px solid var(--line); background: var(--deep-2); color: var(--fog); border-radius: 8px; padding: 6px 9px; cursor: pointer; }
.copy:hover { color: var(--paper); }
.copy.done { color: var(--ok); border-color: var(--ok); }

/* ---------- final ---------- */
.final { position: relative; overflow: hidden; text-align: center; isolation: isolate; padding-block: clamp(110px, 14vw, 190px); }
.final::before {
  content: ""; position: absolute; left: 50%; top: 100%; width: 260vmax; height: 260vmax; translate: -50% -50%; z-index: -1;
  background: conic-gradient(from 0deg, transparent 0deg, var(--ember-glow) 8deg, rgba(242, 165, 65, .3) 12deg, var(--ember-glow) 16deg, transparent 24deg, transparent 360deg);
  animation: sweep 10s linear infinite; filter: blur(6px);
}
@keyframes sweep { to { rotate: 360deg; } }
.final h2 { font-size: clamp(44px, 7.5vw, 104px); font-weight: 800; letter-spacing: -.045em; line-height: .95; }
.final .lede { margin: 22px auto 34px; }
.final .actions { justify-content: center; }

footer { border-top: 1px solid var(--line); padding-block: 36px; color: var(--fog); font-size: 13px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--paper); }

/* ---------- scroll reveal ---------- */
@supports (animation-timeline: view()) {
  .reveal { animation: fadeUp linear both; animation-timeline: view(); animation-range: entry 0% entry 40%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; animation-delay: 0ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}