/* TR: Booster tanıtım sitesi — tek stil dosyası, sıfır JS. Tasarım dili "studio rack / spec
       sheet": hairline panel kenarları, monospace spec etiketleri, tick-mark cetveller, asimetrik
       split hero, bento grid. Renk tokenları uygulamanın "Cinema Dark" paletiyle birebir
       (bg #0A0A0F, indigo #5E6AD2, sys mavi #5FA8E8, warn turuncu #EF7A55). Webfont yok:
       başlıklar system stack, etiketler monospace. Sayfalar: index, privacy, data-deletion,
       terms, support.
   EN: The Booster marketing site — a single stylesheet, zero JS. The design language is
       "studio rack / spec sheet": hairline panel borders, monospace spec labels, tick-mark
       rulers, an asymmetric split hero, a bento grid. Color tokens match the app's "Cinema
       Dark" palette exactly (bg #0A0A0F, indigo #5E6AD2, sys blue #5FA8E8, warn orange
       #EF7A55). No webfonts: headings use the system stack, labels use monospace. Pages:
       index, privacy, data-deletion, terms, support. */

:root {
  --bg: #0a0a0f;
  --panel: #101017;
  --panel-hi: #14141c;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #ededef;
  --body: #c6c8d2;
  --muted: #8a8f98;
  --faint: #5d5d66;
  --accent: #5e6ad2;
  --accent-hi: #8a94e8;
  --sys: #5fa8e8;
  --warn: #ef7a55;
  --ramp: linear-gradient(90deg, #5fa8e8, #5e6ad2 55%, #ef7a55);
  --mono: ui-monospace, 'Cascadia Mono', Consolas, 'Roboto Mono', monospace;
  --sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--text); font-weight: 800; letter-spacing: -0.025em; margin: 0; }
a { color: var(--accent-hi); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 3px; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 780px; }

/* TR: Monospace spec etiketi — cihaz panellerindeki serigrafi yazılar gibi.
   EN: The monospace spec label — like silk-screened text on hardware panels. */
.spec {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
}
.spec b { color: var(--accent-hi); font-weight: 500; }

/* TR: Tick-mark cetvel — bölüm ayracı olarak kullanılan ince çizgi ızgarası.
   EN: The tick-mark ruler — a fine line grid used as a section divider. */
.ruler {
  height: 12px;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 14px);
  border-bottom: 1px solid var(--line);
}

/* ---------------------------------------------------------------- header */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
header.site .bar { display: flex; align-items: center; gap: 12px; height: 64px; }
header.site img { width: 30px; height: 30px; border-radius: 8px; }
header.site .name { font-weight: 800; font-size: 17px; color: var(--text); letter-spacing: -0.02em; }
header.site .ver { margin-left: 10px; }
header.site nav { margin-left: auto; display: flex; gap: 4px; }
header.site nav a {
  color: var(--muted); font-size: 14px; padding: 10px 12px; border-radius: 8px;
  transition: color .15s ease, background .15s ease;
}
header.site nav a:hover { color: var(--text); background: var(--panel-hi); text-decoration: none; }

/* ------------------------------------------------------------------ hero */
.hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 48px; align-items: center; padding: 72px 0 64px; }
.hero h1 { font-size: clamp(40px, 5.2vw, 64px); line-height: 1.02; margin: 18px 0 0; }
.hero h1 em { font-style: normal; color: var(--accent-hi); }
.hero p.sub { color: var(--muted); font-size: 18.5px; max-width: 520px; margin: 22px 0 0; }

.btn {
  display: inline-block; margin-top: 32px;
  background: var(--accent); color: #ffffff; font-weight: 700; font-size: 15.5px;
  padding: 14px 26px; border-radius: 10px;
  transition: background .15s ease, transform .15s ease;
}
.btn:hover { background: #6d79dd; transform: translateY(-1px); text-decoration: none; }
.btn.line { background: transparent; color: var(--text); border: 1px solid var(--line-strong); }
.btn.line:hover { background: var(--panel-hi); }

/* TR: Spec çipleri — hero altındaki teknik özet satırı.
   EN: Spec chips — the technical summary row under the hero. */
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chips span {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--muted);
  border: 1px solid var(--line); border-radius: 6px; padding: 6px 12px; background: var(--panel);
}

/* TR: Telefon görseli + arkasındaki kadran yayı (conic-gradient halka, CSS-only).
   EN: The phone shot + the dial arc behind it (a conic-gradient ring, CSS-only). */
.stage { position: relative; display: flex; justify-content: center; }
.stage::before {
  content: ''; position: absolute; width: 130%; aspect-ratio: 1; max-width: 560px;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: conic-gradient(from 200deg, #5fa8e8, #5e6ad2 40%, #ef7a55 62%, transparent 62%);
  border-radius: 50%;
  -webkit-mask: radial-gradient(closest-side, transparent 68%, #000 69%);
  mask: radial-gradient(closest-side, transparent 68%, #000 69%);
  opacity: 0.5;
}
.stage img { position: relative; width: min(300px, 78%); border-radius: 24px; border: 1px solid var(--line-strong); display: block; }

/* TR: EQ bar motifi — hero'nun altındaki dekoratif bant (aria-hidden span'ler).
   EN: The EQ bar motif — the decorative strip under the hero (aria-hidden spans). */
.eqdeco { display: flex; align-items: flex-end; gap: 6px; height: 46px; padding: 0 0 26px; overflow: hidden; }
.eqdeco span { flex: 1; min-width: 0; border-radius: 2px 2px 0 0; background: var(--ramp); opacity: 0.32; }
.eqdeco span:nth-child(odd) { opacity: 0.18; }
.eqdeco span:nth-child(1)  { height: 24%; } .eqdeco span:nth-child(2)  { height: 42%; }
.eqdeco span:nth-child(3)  { height: 30%; } .eqdeco span:nth-child(4)  { height: 58%; }
.eqdeco span:nth-child(5)  { height: 44%; } .eqdeco span:nth-child(6)  { height: 72%; }
.eqdeco span:nth-child(7)  { height: 52%; } .eqdeco span:nth-child(8)  { height: 88%; }
.eqdeco span:nth-child(9)  { height: 66%; } .eqdeco span:nth-child(10) { height: 100%; }
.eqdeco span:nth-child(11) { height: 74%; } .eqdeco span:nth-child(12) { height: 56%; }
.eqdeco span:nth-child(13) { height: 82%; } .eqdeco span:nth-child(14) { height: 46%; }
.eqdeco span:nth-child(15) { height: 62%; } .eqdeco span:nth-child(16) { height: 34%; }
.eqdeco span:nth-child(17) { height: 48%; } .eqdeco span:nth-child(18) { height: 26%; }
.eqdeco span:nth-child(19) { height: 38%; } .eqdeco span:nth-child(20) { height: 18%; }

/* -------------------------------------------------------------- sections */
section { padding: 64px 0; }
.sechead { display: flex; align-items: baseline; gap: 18px; margin-bottom: 8px; }
section h2 { font-size: clamp(26px, 3.6vw, 36px); }
section p.lead { color: var(--muted); max-width: 640px; margin: 10px 0 0; }

/* ----------------------------------------------------------------- bento */
/* TR: Bento grid — 2 büyük (screenshot'lı) + 4 küçük panel; eş kart ızgarası değil.
   EN: The bento grid — 2 large panels (with screenshots) + 4 small ones; not a uniform card grid. */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 36px; }
.b {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 24px; display: flex; flex-direction: column; gap: 8px;
}
.b h3 { font-size: 18px; letter-spacing: -0.015em; }
.b p { color: var(--muted); font-size: 15px; margin: 0; }
.b .spec { margin-bottom: 10px; }
.b.wide { grid-column: span 2; flex-direction: row; gap: 24px; align-items: center; }
.b.wide .txt { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.b.wide img { width: 128px; border-radius: 14px; border: 1px solid var(--line-strong); display: block; }
.b.warnline { border-left: 2px solid var(--warn); }
.b.sysline { border-left: 2px solid var(--sys); }

/* ---------------------------------------------------- signal path diagram */
/* TR: "Off means off" sinyal yolu — CSS kutu/çizgilerle kaynak→booster→çıkış şeması.
   EN: The "off means off" signal path — source→booster→output drawn with CSS boxes/lines. */
.path {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 40px 32px; margin-top: 36px;
}
.path .row { display: flex; align-items: center; justify-content: center; gap: 0; flex-wrap: wrap; }
.node {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text); border: 1px solid var(--line-strong); border-radius: 8px;
  padding: 12px 20px; background: var(--panel-hi); white-space: nowrap;
}
.node.dim { color: var(--faint); border-style: dashed; background: transparent; }
.node.on { border-color: var(--accent); color: var(--accent-hi); }
.wire { width: 56px; height: 1px; background: var(--line-strong); position: relative; }
.wire::after {
  content: ''; position: absolute; right: 0; top: -3px;
  border: 4px solid transparent; border-left-color: var(--line-strong);
}
.path p.cap { text-align: center; color: var(--muted); font-size: 15px; max-width: 560px; margin: 28px auto 0; }
.path p.cap strong { color: var(--text); }

/* --------------------------------------------------------------- privacy */
.privacy { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.privacy .inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; }
.privacy h2 { font-size: clamp(24px, 3.2vw, 32px); }
.privacy p { color: var(--muted); max-width: 560px; margin: 12px 0 0; }
.bignum { font-family: var(--mono); font-size: clamp(44px, 6vw, 72px); font-weight: 700; color: var(--text); line-height: 1; }
.bignum small { display: block; font-size: 12px; letter-spacing: 0.22em; color: var(--faint); margin-top: 10px; text-transform: uppercase; }

/* ------------------------------------------------------------------ legal */
.legal { padding-top: 52px; padding-bottom: 40px; }
.legal h1 { font-size: clamp(30px, 4.4vw, 42px); }
.legal .updated { font-family: var(--mono); color: var(--faint); font-size: 13px; margin-top: 12px; line-height: 1.8; }
.legal h2 {
  font-size: 21px; margin: 42px 0 10px; padding-top: 18px;
  border-top: 1px solid var(--line);
}
.legal h3 { font-size: 16.5px; margin: 26px 0 6px; font-weight: 700; }
.legal p, .legal li { color: var(--body); font-size: 16px; }
.legal ul { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: 15px; }
.legal th, .legal td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.legal th { color: var(--text); font-weight: 700; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase; }
.legal td { color: var(--muted); }
.callout {
  background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--warn);
  border-radius: 12px; padding: 20px 22px; margin: 24px 0;
}
.callout strong { color: var(--text); }

/* ----------------------------------------------------------------- footer */
footer.site { border-top: 1px solid var(--line); margin-top: 48px; }
footer.site .grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; padding: 44px 0 52px; }
footer.site .spec { margin-bottom: 14px; display: block; }
footer.site .co { color: var(--faint); font-size: 14px; line-height: 1.8; }
footer.site .col a { display: block; color: var(--muted); font-size: 14.5px; padding: 4px 0; }
footer.site .col a:hover { color: var(--text); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding: 52px 0 44px; }
  .hero p.sub { max-width: none; }
  .stage { order: -1; }
  .stage img { width: min(240px, 62%); }
  .bento { grid-template-columns: 1fr 1fr; }
  .b.wide { grid-column: span 2; }
  .privacy .inner { grid-template-columns: 1fr; gap: 24px; }
  footer.site .grid { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .bento { grid-template-columns: 1fr; }
  .b.wide { grid-column: span 1; flex-direction: column; align-items: flex-start; }
  .b.wide img { width: 150px; }
  .wire { width: 24px; }
  header.site .ver { display: none; }
}