/* TermFlow Lite site.
   Kimlik: ikondaki grafit pencere + yumuşak beyaz maskot. Sayfa soğuk porselen,
   ürün penceresi grafit bir nesne. Renk yalnızca bir şey ifade ettiğinde:
   yeşil geçti, kırmızı kaldı, amber bekliyor. */

:root {
  --porcelain: #e9ecf0;
  --paper: #f6f7f9;
  --graphite: #232428;
  --slate: #5b606a;
  --hair: #c8cdd5;
  --pass: #23915f;
  --fail: #cf3d35;
  --wait: #c98a1c;

  --display: 'Unbounded', 'Segoe UI', sans-serif;
  --body: 'Atkinson Hyperlegible Next', 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Mono', Consolas, monospace;

  --wrap: 1180px;
  --gutter: clamp(20px, 4vw, 48px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--porcelain);
  color: var(--graphite);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--graphite); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--graphite); color: var(--paper); padding: 8px 12px; border-radius: 6px; }
.skip:focus { left: 8px; z-index: 10; }

kbd {
  display: inline-block;
  min-width: 1.7em;
  padding: 0 0.4em;
  font-family: var(--body);
  font-size: 0.82em;
  line-height: 1.6;
  text-align: center;
  background: var(--paper);
  border: 1px solid var(--hair);
  border-bottom-width: 2px;
  border-radius: 6px;
}

code { font-family: var(--mono); font-size: 0.88em; background: var(--paper); padding: 0.05em 0.35em; border-radius: 4px; }

/* ---------- Nav ---------- */
.nav {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.brand img { border-radius: 8px; }
.nav nav { display: flex; gap: 26px; font-size: 15px; }
.nav nav a { text-decoration: none; color: var(--slate); }
.nav nav a:hover { color: var(--graphite); }
.nav-gh .stars { margin-left: 6px; color: var(--graphite); font-weight: 700; }

/* ---------- Hero ---------- */
.hero { max-width: var(--wrap); margin: 0 auto; padding: clamp(24px, 6vw, 72px) var(--gutter) 0; }

.hero-text { display: flex; flex-direction: column; gap: clamp(22px, 3vw, 36px); }
.hero-side {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px 48px;
}
.hero-cta { display: flex; flex-direction: column; align-items: flex-start; }

h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.2rem, 5.2vw, 4.7rem);
  line-height: 1.02;
  max-width: 17ch;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.lede { margin: 0; color: var(--slate); font-size: 19px; max-width: 44ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  transition: transform 140ms ease, background 140ms ease;
}
.btn-primary { background: var(--graphite); color: var(--paper); box-shadow: 0 1px 0 #000, 0 10px 24px -12px rgba(35, 36, 40, 0.7); }
.btn-primary:hover { transform: translateY(-1px); background: #34363b; }
.btn-quiet { border: 1.5px solid var(--hair); color: var(--graphite); }
.btn-quiet:hover { border-color: var(--graphite); }
.meta { margin: 14px 0 0; font-size: 14px; color: var(--slate); }

/* ---------- Stage: interactive app ---------- */
.stage { position: relative; margin-top: clamp(72px, 8vw, 96px); }

.mascot {
  position: absolute;
  right: clamp(24px, 9%, 120px);
  top: -78px;
  width: 120px;
  height: 92px;
  z-index: 0;
  transition: transform 420ms cubic-bezier(0.34, 1.5, 0.64, 1);
}
.mascot-body { fill: var(--paper); stroke: var(--hair); stroke-width: 1.5; }
.mascot-eyes { fill: var(--graphite); transition: transform 180ms ease-out; }
.mascot.is-happy { transform: translateY(-10px); }
.mascot.is-sad { transform: translateY(26px); }
.mascot.is-sad .mascot-eyes rect { height: 10px; y: 48px; }

.app {
  --t-bg: #1f1f1f;
  --t-fg: #cccccc;
  --t-dim: #8b8b8b;
  --t-chrome: #181818;
  --t-tab: #1f1f1f;
  --t-line: #2b2b2b;
  --t-status: #181818;
  --t-accent: #0078d4;
  --t-grn: #4ec98e;
  --t-red: #f1655c;
  --t-yel: #e5c07b;
  --t-mag: #d68ce8;
  --t-cyan: #4fc1d9;
  --t-blue: #4d9df5;
  --t-cursor: #e8e8e8;

  position: relative;
  z-index: 1;
  overflow: hidden;
  border-radius: 14px;
  background: var(--t-bg);
  color: var(--t-fg);
  box-shadow: 0 0 0 1px rgba(35, 36, 40, 0.9), 0 40px 80px -40px rgba(35, 36, 40, 0.55), 0 18px 30px -24px rgba(35, 36, 40, 0.5);
  transition: background 260ms ease;
}

.app[data-theme='light'] {
  --t-bg: #ffffff; --t-fg: #3b3b3b; --t-dim: #8a8a8a; --t-chrome: #f3f3f3; --t-tab: #ffffff; --t-line: #e5e5e5;
  --t-status: #f3f3f3; --t-accent: #005fb8; --t-grn: #16825d; --t-red: #cd3131; --t-yel: #a06800; --t-mag: #a33fbf;
  --t-cyan: #0f7f8f; --t-blue: #0451a5; --t-cursor: #222;
  box-shadow: 0 0 0 1px var(--hair), 0 40px 80px -40px rgba(35, 36, 40, 0.35);
}
.app[data-theme='matrix'] {
  --t-bg: #020a03; --t-fg: #33ff66; --t-dim: #1d6b2a; --t-chrome: #031005; --t-tab: #020a03; --t-line: #0b2a12;
  --t-status: #031005; --t-accent: #33ff66; --t-grn: #b4ffc8; --t-red: #b4ffc8; --t-yel: #b4ffc8; --t-mag: #33ff66;
  --t-cyan: #33ff66; --t-blue: #1d6b2a; --t-cursor: #b4ffc8;
}
.app[data-theme='amber'] {
  --t-bg: #0d0700; --t-fg: #ffb000; --t-dim: #7a4a00; --t-chrome: #120a00; --t-tab: #0d0700; --t-line: #2a1a00;
  --t-status: #120a00; --t-accent: #ffb000; --t-grn: #ffd68a; --t-red: #ffd68a; --t-yel: #ffd68a; --t-mag: #ffb000;
  --t-cyan: #ffb000; --t-blue: #7a4a00; --t-cursor: #ffd68a;
}

.app-tabs { display: flex; align-items: stretch; height: 40px; background: var(--t-chrome); border-bottom: 1px solid var(--t-line); }
.app-tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  padding: 0 16px;
  font: 500 13px var(--body);
  color: var(--t-dim);
  background: transparent;
  border: 0;
  border-right: 1px solid var(--t-line);
  cursor: pointer;
  overflow: hidden;
}
.app-tab.is-active { background: var(--t-tab); color: var(--t-fg); box-shadow: inset 0 2px 0 var(--t-accent); }
.app-tab:focus-visible { outline-offset: -3px; }
.tab-ico { width: 14px; height: 14px; border-radius: 3px; flex: none; }
.ico-ps { background: var(--t-blue); }
.ico-ai { background: var(--t-mag); border-radius: 50%; }
.ico-git { background: var(--t-red); transform: rotate(45deg) scale(0.8); }
.tab-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--t-accent); flex: none; }
.tab-dot.is-running { animation: dot-pulse 1.4s ease-in-out infinite; }
.dot-wait { background: var(--t-yel); animation: dot-pulse 1.1s ease-in-out infinite; }
.dot-done { background: var(--t-dim); opacity: 0.6; }
@keyframes dot-pulse { 50% { opacity: 0.35; transform: scale(0.7); } }
.tab-flash { position: absolute; inset: 0; opacity: 0; pointer-events: none; }
.tab-flash.is-pass { animation: tab-flash 1.4s ease-out; background: linear-gradient(to top, color-mix(in srgb, var(--t-grn) 35%, transparent), transparent 70%); }
.tab-flash.is-fail { animation: tab-flash 1.4s ease-out; background: linear-gradient(to top, color-mix(in srgb, var(--t-red) 40%, transparent), transparent 70%); }
@keyframes tab-flash { 15% { opacity: 1; } }
.app-tabs-fill { flex: 1; }
.win-btns { display: flex; align-items: center; gap: 18px; padding: 0 18px; }
.win-btns i { width: 10px; height: 10px; border: 1.5px solid var(--t-dim); border-radius: 2px; opacity: 0.7; }
.win-btns i:first-child { height: 0; border-width: 0 0 1.5px; border-radius: 0; }

.app-body { position: relative; height: clamp(300px, 36vw, 430px); }
.term { position: absolute; inset: 0; padding: 14px 18px; overflow: hidden; }
.term-lines { font: 400 clamp(11px, 1.15vw, 14px) / 1.6 var(--mono); white-space: pre; }
.term-fx { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }

.ln { position: relative; min-height: 1.6em; }
.ln.dim, .c-dim { color: var(--t-dim); }
.c-grn { color: var(--t-grn); }
.c-red { color: var(--t-red); }
.c-yel { color: var(--t-yel); }
.c-mag { color: var(--t-mag); }
.c-cyan { color: var(--t-cyan); }
.c-blue { color: var(--t-blue); }
.c-ghost { color: var(--t-dim); opacity: 0.75; }

/* Komut bloğu çizgisi: uygulamadaki gutter'ın aynısı. */
.gut::before { content: ''; position: absolute; left: -10px; top: 0; bottom: 0; width: 3px; border-radius: 2px; }
.gut-run::before { background: var(--t-accent); animation: dot-pulse 1.2s ease-in-out infinite; }
.gut-pass::before { background: var(--t-grn); opacity: 0.55; }
.gut-fail::before { background: var(--t-red); }
.badge { position: absolute; right: 4px; top: 0; font: 500 11px/1.6rem var(--body); line-height: inherit; animation: badge-in 260ms ease-out; }
.badge-pass { color: var(--t-grn); }
.badge-fail { color: var(--t-red); }
@keyframes badge-in { from { opacity: 0; transform: translateX(8px); } }

.cursor { display: inline-block; width: 0.6em; height: 1.15em; vertical-align: -0.2em; background: var(--t-cursor); animation: blink 1.05s steps(1) infinite; }
.typing .cursor { animation: none; }
@keyframes blink { 50% { opacity: 0; } }
.key-hint { display: inline-block; margin-left: 10px; padding: 0 6px; font: 600 10px/1.6 var(--body); color: var(--t-bg); background: var(--t-dim); border-radius: 4px; vertical-align: 0.1em; }

/* Retro katman */
.app[data-theme='matrix'] .app-body::after,
.app[data-theme='amber'] .app-body::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, transparent 58%, rgba(0, 0, 0, 0.45) 100%),
    repeating-linear-gradient(to bottom, transparent 0, transparent 2px, rgba(0, 0, 0, 0.22) 3px);
}
.app[data-theme='matrix'] .term-lines,
.app[data-theme='amber'] .term-lines { text-shadow: 0 0 6px color-mix(in srgb, var(--t-fg) 60%, transparent); }

.app-status {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 26px;
  padding: 0 12px;
  font: 500 11px var(--body);
  color: var(--t-dim);
  background: var(--t-status);
  border-top: 1px solid var(--t-line);
  white-space: nowrap;
  overflow: hidden;
}
.st-fill { flex: 1; }
.st-proj, .st-branch { color: var(--t-cyan); }
.st-mode { color: var(--t-yel); }
.st-pulse polyline { fill: none; stroke: currentColor; stroke-width: 1.2; stroke-linejoin: round; }

.stage-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 18px;
  font-size: 14px;
}
.seg { display: inline-flex; align-items: center; gap: 2px; padding: 3px; background: var(--paper); border: 1px solid var(--hair); border-radius: 999px; }
.seg-label { padding: 0 8px 0 10px; color: var(--slate); }
.seg button, .replay {
  min-height: 32px;
  padding: 0 12px;
  font: 500 14px var(--body);
  color: var(--slate);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
}
.seg button[aria-pressed='true'] { background: var(--graphite); color: var(--paper); }
.seg button:hover { color: var(--graphite); }
.seg button[aria-pressed='true']:hover { color: var(--paper); }
.replay { margin-left: auto; border: 1px solid var(--hair); background: var(--paper); color: var(--graphite); }
.replay:hover { border-color: var(--graphite); }

/* ---------- Proof ---------- */
.proof {
  width: min(calc(100% - 2 * var(--gutter)), calc(var(--wrap) - 2 * var(--gutter)));
  margin: clamp(56px, 8vw, 96px) auto 0;
  padding: 26px 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.proof div { display: flex; flex-direction: column; gap: 2px; }
.proof strong { font-family: var(--display); font-weight: 600; font-size: 20px; letter-spacing: -0.02em; }
.proof span { color: var(--slate); font-size: 15px; }

/* ---------- Features ---------- */
.features { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.feature {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding: clamp(64px, 9vw, 120px) 0 0;
}
.feature:nth-child(even) { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }
.feature:nth-child(even) .feature-copy { order: 2; }

h2 {
  margin: 0 0 16px;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.6rem, 2.8vw, 2.35rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}
.feature-copy p { margin: 0 0 16px; color: var(--slate); max-width: 44ch; }
.feature-copy ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; max-width: 46ch; }
.feature-copy li { position: relative; padding-left: 22px; }
.feature-copy li::before { content: ''; position: absolute; left: 2px; top: 0.62em; width: 8px; height: 8px; border-radius: 2px; background: var(--graphite); }
.note { font-size: 15px; padding-left: 14px; border-left: 3px solid var(--pass); }

.shot { margin: 0; border-radius: 12px; overflow: hidden; box-shadow: 0 0 0 1px rgba(35, 36, 40, 0.9), 0 30px 60px -36px rgba(35, 36, 40, 0.6); background: #1f1f1f; }
.shot-zoom { background: #1f1f1f; }

/* ---------- More ---------- */
.more { max-width: var(--wrap); margin: 0 auto; padding: clamp(80px, 10vw, 140px) var(--gutter) 0; }
.more dl { margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 40px; }
.more dl div { padding-top: 16px; border-top: 1px solid var(--hair); }
.more dt { font-weight: 700; margin-bottom: 4px; }
.more dd { margin: 0; color: var(--slate); font-size: 15px; }

/* ---------- Download ---------- */
.download {
  width: min(calc(100% - 2 * var(--gutter)), calc(var(--wrap) - 2 * var(--gutter)));
  margin: clamp(80px, 10vw, 140px) auto 0;
  padding: clamp(36px, 5vw, 64px);
  background: var(--graphite);
  color: var(--paper);
  border-radius: 24px;
}
.download h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
.download-head p { margin: 0; color: #b5bac3; }
.dl-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 12px; margin-top: 32px; }
.dl {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border-radius: 14px;
  border: 1px solid #3c3e44;
  text-decoration: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.dl:hover { border-color: var(--paper); }
.dl-main { background: var(--paper); color: var(--graphite); border-color: var(--paper); }
.dl-main:hover { background: #ffffff; }
.dl-os { font-family: var(--display); font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
.dl-file { font-family: var(--mono); font-size: 12px; opacity: 0.75; overflow-wrap: anywhere; }
.dl-hint { font-size: 14px; opacity: 0.7; margin-top: auto; padding-top: 10px; }
.silent { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; color: #b5bac3; }
.silent p { margin: 0; }
.silent pre { margin: 0; }
.silent code { display: inline-block; padding: 6px 12px; color: var(--paper); background: #2f3136; border-radius: 8px; font-size: 13px; }
.release-link { margin: 22px 0 0; }
.release-link a { color: var(--paper); text-underline-offset: 3px; }

/* ---------- Footer ---------- */
.foot {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 48px var(--gutter) 56px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
  color: var(--slate);
  font-size: 15px;
}
.foot-brand { display: flex; align-items: center; gap: 10px; color: var(--graphite); font-family: var(--display); font-weight: 600; font-size: 14px; }
.foot-brand img { border-radius: 7px; }
.owner, .foot-links { margin: 0; display: flex; flex-wrap: wrap; gap: 14px; }
.foot-links { margin-left: auto; }
.foot a { color: var(--graphite); text-underline-offset: 3px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .feature, .feature:nth-child(even) { grid-template-columns: 1fr; }
  .feature:nth-child(even) .feature-copy { order: 0; }
  .proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .more dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dl-grid { grid-template-columns: 1fr 1fr; }
  .dl-main { grid-column: 1 / -1; }
  .foot-links { margin-left: 0; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .nav nav a:not(.nav-gh) { display: none; }
  .mascot { width: 84px; top: -56px; }
  .mascot svg { width: 84px; height: 64px; }
  .app-tab { padding: 0 10px; }
  .app-tab:nth-child(3) { display: none; }
  .win-btns, .app-status span:not(.st-branch):not(.st-fill) { display: none; }
  .more dl, .dl-grid { grid-template-columns: 1fr; }
  .replay { margin-left: 0; }
}

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