/* ==========================================================================
   Luplet — Kurumsal Tanıtım Sitesi · Tasarım Sistemi
   Tek stil dosyası (TASARIM.md bölüm 1–9). Sayfa-içi <style> YOKTUR.
   Saf CSS, dış bağımlılık yok. Uygulama (web/) ile marka birliği — ADR-023.
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Font — self-host Inter (variable). Kaynak: web/src/fonts/InterVariable.woff2
      Tek variable dosya 100–900 tüm ağırlıkları taşır (uygulama ile aynı dosya).
      Bulunamasaydı yalnız sistem yığını kullanılacaktı; burada Inter mevcut.
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "InterVariable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/InterVariable.woff2") format("woff2");
}

/* --------------------------------------------------------------------------
   1. Renk token'ları (TASARIM.md §1)
   -------------------------------------------------------------------------- */
:root {
  /* Marka vurgusu — TURUNCU (birincil, logo ile özdeş — ADR-025, yalnız SİTE). Küçük METİN rollerinde
     (eyebrow, price-tier, link, badge) --accent-hover (daha açık) kullanılır; dolgu/ikon/rota/buton #ff5c2b.
     KONTRAST KURALI: #ff5c2b üstünde metin KOYU (#161007, ~6.2:1) — BEYAZ AA'yı geçmez, geri düzeltme! */
  --accent: #ff5c2b;
  --accent-hover: #ff7a4d;
  --accent-soft: rgba(255, 92, 43, .12);

  /* --accent-warm* artık --accent ile AYNI turuncu (tek marka rengi). Eski "ikincil sıcak" kavramı
     birleşti; birincil CTA + sayaç sayıları hâlâ bu token'ları okur (dokunmaya gerek yok). */
  --accent-warm: #ff5c2b;
  --accent-warm-hover: #ff7a4d;
  --accent-warm-soft: rgba(255, 92, 43, .12);

  /* TAM KARANLIK tema — 3 katmanlı derinlik (koyuda gölge zayıf; ritim luminanstan gelir; bant < kart).
     Sıralama:  --dark-bg #070709  <  --bg #0b0b0d  <  --surface #141417  <  --dark-elevated #1c1c20 */
  --dark-bg: #070709;        /* en derin: hero, .section--dark, header, footer */
  --dark-surface: #141417;   /* koyu bant üstündeki kart */
  --dark-elevated: #1c1c20;  /* kart taban zemini — her bandın üstünde belirir */
  --dark-fg: #f4f4f5;
  --dark-fg-muted: #a2a6ae;
  --dark-border: rgba(255, 255, 255, .10);
  --dark-border-strong: rgba(255, 255, 255, .16);

  /* Gövde yüzeyleri — artık KOYU (eski "açık" adları korunur; .section--surface yanlış ad, TASARIM.md §1) */
  --bg: #0b0b0d;             /* body, düz .section */
  --surface: #141417;        /* .section--surface bandı, .faq__item, .pill */
  --fg: #f4f4f5;
  --fg-muted: #a2a6ae;
  --fg-dim: #82868e;
  --border: rgba(255, 255, 255, .10);
  --border-strong: rgba(255, 255, 255, .16);

  /* Durum / vurgu (rozet, ikon) — koyu zeminde okunur */
  --green: #35b985;
  --amber: #e0912e;
  --blue: #4f9fe6;
  --indigo: #7b84ea;
  --red: #e5646b;

  /* Şekil */
  --radius: 12px;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --radius-full: 999px;

  /* Gölge — koyu tema: siyah ambient (kart/hover derinliği görünür kalsın diye derin) */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .40), 0 6px 16px rgba(0, 0, 0, .28);
  --shadow-md: 0 2px 6px rgba(0, 0, 0, .45), 0 18px 44px rgba(0, 0, 0, .38);

  /* Düzen */
  --maxw: 1160px;
  --header-h: 76px;

  /* Tipografi yığını */
  --font-sans: "InterVariable", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* --------------------------------------------------------------------------
   2. Sıfırlama & taban
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;          /* 17px */
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv01", "ss03", "tnum";
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
img { border-style: none; }

a { color: var(--accent-hover); text-decoration: none; }
a:hover { color: #ff9d72; }

ul, ol { margin: 0; padding: 0; }

h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.15; color: var(--fg); }

p { margin: 0; }

:where(button, input, textarea, select) { font: inherit; color: inherit; }

/* Görünür odak — klavye gezinme (TASARIM.md §9) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   3. Erişilebilirlik yardımcıları
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 200;
  background: var(--accent);
  color: #161007;
  padding: .625rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top .18s ease;
}
.skip-link:focus { top: 1rem; color: #fff; }

/* --------------------------------------------------------------------------
   4. Tipografi ölçeği (TASARIM.md §2)
   -------------------------------------------------------------------------- */
.h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.25; }

.eyebrow {
  display: inline-block;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-hover);
  margin: 0 0 .75rem;
}

.lead {
  font-size: 1.1875rem;          /* 19px */
  line-height: 1.6;
  color: var(--fg-muted);
}

.text-muted { color: var(--fg-muted); }
.text-dim { color: var(--fg-dim); }

/* Metin blokları okunabilir genişlik */
.prose { max-width: 65ch; }
.prose p + p { margin-top: 1.1em; }
.prose h2 { margin: 2.2em 0 .6em; }
.prose h3 { margin: 1.8em 0 .4em; }
.prose ul { padding-left: 1.2em; list-style: disc; }
.prose li { margin: .35em 0; }

/* --------------------------------------------------------------------------
   5. Düzen (TASARIM.md §3)
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2rem);
}
.container--narrow { max-width: 820px; }

.section { padding-block: clamp(4rem, 9vw, 7rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 4.5rem); }

/* Koyu bölüm — dark token'ları devreye alır */
.section--dark {
  background: var(--dark-bg);
  color: var(--dark-fg);
}
.section--dark .h1,
.section--dark .h2,
.section--dark .h3 { color: var(--dark-fg); }
.section--dark .lead,
.section--dark .text-muted { color: var(--dark-fg-muted); }
.section--dark a { color: var(--dark-fg); }

.section--surface { background: var(--surface); }

/* Izgara */
.grid { display: grid; gap: 1.5rem; }
.cols-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.cols-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.cols-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }

.stack { display: flex; flex-direction: column; }
.stack > * + * { margin-top: 1rem; }

.cluster { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.center { text-align: center; }
.center .lead, .center .prose { margin-inline: auto; }

/* Bölüm başlığı (TASARIM.md §4) */
.section-head { max-width: 720px; margin-bottom: clamp(2rem, 5vw, 3rem); }
.section-head.center { margin-inline: auto; }
.section-head .lead { margin-top: .75rem; }

/* --------------------------------------------------------------------------
   6. Butonlar (TASARIM.md §4)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;
  padding: .6875rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease,
              color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

/* Birincil CTA — sıcak turuncu; her .btn--primary bir dönüşüm eylemidir (Teklif Al / Gönder / Başvur).
   Metin KOYU (#161007) — beyaz AA'yı geçmez (bkz. --accent-warm notu). */
.btn--primary {
  background: var(--accent-warm);
  color: #161007;
  border-color: var(--accent-warm);
}
.btn--primary:hover { background: var(--accent-warm-hover); border-color: var(--accent-warm-hover); color: #161007; }

.btn--outline {
  background: transparent;
  color: var(--accent-hover);   /* koyuda AA (indigo metin ~4.5:1 sınırını geçsin) */
  border-color: var(--accent);
}
.btn--outline:hover { background: var(--accent-soft); color: var(--accent-hover); }

.btn--ghost {
  background: transparent;
  color: var(--fg);
  border-color: transparent;
}
.btn--ghost:hover { background: rgba(255, 255, 255, .06); color: var(--fg); }

/* Koyu zeminde buton varyantları */
.section--dark .btn--outline,
.site-header .btn--outline {
  color: var(--dark-fg);
  border-color: var(--dark-border-strong);
}
.section--dark .btn--outline:hover,
.site-header .btn--outline:hover {
  background: rgba(255, 255, 255, .07);
  border-color: var(--dark-fg);
  color: var(--dark-fg);
}
.section--dark .btn--ghost { color: var(--dark-fg); }
.section--dark .btn--ghost:hover { background: rgba(255, 255, 255, .08); color: var(--dark-fg); }

.btn--lg { min-height: 50px; padding: .8125rem 1.5rem; font-size: 1.0625rem; }
.btn--block { width: 100%; }

/* --------------------------------------------------------------------------
   7. Kart & yüzey bileşenleri (TASARIM.md §4)
   -------------------------------------------------------------------------- */
.card {
  background: var(--dark-elevated);   /* #1c1c20 — her bandın (070709/0b0b0d/141417) üstünde belirir */
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2rem);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.card--hover:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* Koyu zeminde kart */
.section--dark .card {
  background: var(--dark-surface);
  border-color: var(--dark-border);
  box-shadow: none;
}
.section--dark .card--hover:hover { border-color: var(--dark-border-strong); }

/* Özellik kutusu */
.feature { }
.feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.feature__icon svg { width: 24px; height: 24px; }
.feature h3 { margin-bottom: .5rem; }
.feature p { color: var(--fg-muted); }
.section--dark .feature p { color: var(--dark-fg-muted); }

/* Adım kartı */
.steps { counter-reset: step; }
.step { position: relative; }
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: #161007;
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 1.1rem;
  font-feature-settings: "tnum";
}
.step h3 { margin-bottom: .5rem; }
.step p { color: var(--fg-muted); }
.section--dark .step p { color: var(--dark-fg-muted); }

/* Bağlayıcı çizgi (masaüstü, 4 adımlı akış) */
@media (min-width: 780px) {
  .steps--connected { position: relative; }
  .steps--connected .step:not(:last-child) .step__num::after {
    content: "";
    position: absolute;
    top: 22px;
    left: calc(44px + .75rem);
    width: calc(100% - 44px - 1.5rem);
    height: 2px;
    background: linear-gradient(to right, var(--border-strong), transparent);
  }
}

/* Rozet */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .7rem;
  border-radius: var(--radius-full);
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1;
  background: var(--accent-soft);
  color: var(--accent-hover);
}
.badge svg { width: 14px; height: 14px; }
.badge--green { background: rgba(29, 157, 103, .12); color: var(--green); }
.badge--amber { background: rgba(194, 118, 10, .12); color: var(--amber); }
.badge--blue { background: rgba(43, 127, 212, .12); color: var(--blue); }
.badge--indigo { background: rgba(255, 92, 43, .12); color: var(--indigo); }

/* Kontrol listesi (değer maddeleri) */
.checklist { list-style: none; }
.checklist li {
  position: relative;
  padding-left: 2rem;
  margin: .9rem 0;
  color: var(--fg-muted);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: .15em;
  width: 22px; height: 22px;
  border-radius: var(--radius-full);
  background: rgba(29, 157, 103, .12);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%231d9d67' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.section--dark .checklist li { color: var(--dark-fg-muted); }

/* İstatistik şeridi */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 1.5rem;
}
.stat { text-align: center; }
.stat__num {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  font-feature-settings: "tnum";
  line-height: 1;
}
.section--dark .stat__num { color: var(--dark-fg); }
/* Animasyonlu sayaç sayıları — sıcak vurgu ("teslimat enerjisi"); count-up JS main.js'te */
.stat__num[data-count-to] { color: var(--accent-warm); }
.section--dark .stat__num[data-count-to] { color: var(--accent-warm); }
.stat__label { margin-top: .5rem; color: var(--fg-muted); font-size: .9375rem; }
.section--dark .stat__label { color: var(--dark-fg-muted); }

/* Güven şeridi (satır içi rozet listesi) */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  color: var(--dark-fg-muted);
  font-size: .9375rem;
}
.trust-strip__item { display: inline-flex; align-items: center; gap: .5rem; }
.trust-strip__item svg { width: 16px; height: 16px; color: var(--accent); flex: none; }

/* --------------------------------------------------------------------------
   8. SSS akordeon (TASARIM.md §4) — <details>/<summary>, JS'siz de çalışır
   -------------------------------------------------------------------------- */
.faq { display: flex; flex-direction: column; gap: .75rem; }
.faq__item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq__item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-weight: 600;
  font-size: 1.0625rem;
  cursor: pointer;
  list-style: none;
  color: var(--fg);
}
.faq__item > summary::-webkit-details-marker { display: none; }
.faq__item > summary::after {
  content: "";
  flex: none;
  width: 20px; height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23ff5c2b' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform .2s ease;
}
.faq__item[open] > summary::after { transform: rotate(45deg); }
.faq__body {
  padding: 0 1.25rem 1.2rem;
  color: var(--fg-muted);
}
.faq__body p + p { margin-top: .8em; }
/* JS yumuşatma kancası */
.faq__reveal { overflow: hidden; }

/* --------------------------------------------------------------------------
   9. Form (TASARIM.md §4)
   -------------------------------------------------------------------------- */
.form { display: grid; gap: 1.25rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field label {
  font-weight: 600;
  font-size: .9375rem;
  color: var(--fg);
}
.field .req { color: var(--red); }
.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 44px;
  padding: .625rem .8125rem;
  background: var(--dark-bg);   /* içe gömük alan — karttan (#1c1c20) daha koyu (#070709) */
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--fg);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.5; }
.field input::placeholder,
.field textarea::placeholder { color: var(--fg-dim); }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field--error input,
.field--error textarea,
.field--error select { border-color: var(--red); }
.field--error input:focus,
.field--error textarea:focus,
.field--error select:focus { box-shadow: 0 0 0 3px rgba(208, 69, 77, .15); }
.field__error {
  font-size: .875rem;
  color: var(--red);
  min-height: 0;
}
.field__hint { font-size: .875rem; color: var(--fg-dim); }

.form__note {
  font-size: .875rem;
  color: var(--fg-dim);
  padding: .875rem 1rem;
  background: var(--bg);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
}
.form__status {
  padding: .875rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}
.form__status[data-state="success"] {
  background: rgba(29, 157, 103, .10);
  color: var(--green);
  border: 1px solid rgba(29, 157, 103, .25);
}

/* --------------------------------------------------------------------------
   10. Hero (koyu, TASARIM.md §8)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--dark-bg);
  color: var(--dark-fg);
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
}
/* Accent radyal parıltı */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 55% at 78% 12%, rgba(255, 92, 43, .30), transparent 60%),
    radial-gradient(38% 42% at 96% 90%, var(--accent-warm-soft), transparent 60%),
    radial-gradient(45% 45% at 6% 88%, rgba(255, 92, 43, .14), transparent 60%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }
.hero__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}
@media (min-width: 900px) {
  .hero__grid { grid-template-columns: 1.05fr .95fr; }
}
.hero .eyebrow { color: var(--accent-hover); }
.hero .h1 { color: var(--dark-fg); font-weight: 800; }
.hero__sub {
  margin-top: 1.25rem;
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--dark-fg-muted);
  max-width: 52ch;
}
.hero__actions { margin-top: 2rem; }
.hero__trust { margin-top: 2.25rem; }

/* --------------------------------------------------------------------------
   11. Operasyon paneli mockup (soyut SVG kart — hero görseli)
   -------------------------------------------------------------------------- */
.mockup {
  background: var(--dark-surface);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 1rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .45);
}
.mockup svg { width: 100%; height: auto; border-radius: var(--radius); display: block; }

/* --------------------------------------------------------------------------
   12. Header (TASARIM.md §5)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 7, 9, .72);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: background-color .2s ease, border-color .2s ease;
}
/* Scroll'da katılaşma (JS .is-scrolled ekler) */
.site-header.is-scrolled {
  background: rgba(7, 7, 9, .92);
  border-bottom-color: var(--dark-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--header-h);
}

/* Logo lockup */
.brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--dark-fg);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: 1.1875rem;
  flex: none;
}
.brand:hover { color: var(--dark-fg); }
.brand svg { color: var(--accent); flex: none; }
.brand__logo { height: 50px; width: auto; flex: none; display: block; }  /* kullanıcının logo mark'ı (raster) */
.brand__wordmark { height: 37px; width: auto; flex: none; display: block; }  /* kullanıcının "lüplet" wordmark'ı (kendi fontu, beyaz) */
.brand__name { line-height: 1; }

/* Nav */
.site-nav { margin-left: auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
}
.site-nav__list a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 .75rem;
  border-radius: var(--radius-sm);
  color: var(--dark-fg-muted);
  font-size: .9375rem;
  font-weight: 500;
  transition: color .15s ease, background-color .15s ease;
}
.site-nav__list a:hover { color: var(--dark-fg); background: rgba(255, 255, 255, .06); }
.site-nav__list a[aria-current="page"] { color: var(--dark-fg); }
.site-nav__list a[aria-current="page"]::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 3px;
  border-radius: 2px;
  background: var(--accent);
}

/* Nav içindeki CTA butonu, link-renk kuralından (.site-nav__list a) etkilenmesin — koyu metin korunur */
.site-nav__list a.btn--primary,
.site-nav__list a.btn--primary:hover { color: #161007; }

.site-header__cta { margin-left: 1rem; flex: none; }

/* Hamburger */
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
  color: var(--dark-fg);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .site-header__cta { display: none; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    margin: 0;
    background: var(--dark-bg);
    border-bottom: 1px solid var(--dark-border);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .18s ease, transform .18s ease, visibility .18s;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: .25rem;
    padding: 1rem clamp(1.25rem, 4vw, 2rem) 1.5rem;
  }
  .site-nav__list a { min-height: 48px; padding: 0 .75rem; font-size: 1.0625rem; }
  .site-nav__cta-mobile {
    margin-top: .75rem;
  }
  .site-nav__cta-mobile .btn { width: 100%; }
}
@media (min-width: 901px) {
  .site-nav__cta-mobile { display: none; }
}

/* --------------------------------------------------------------------------
   13. Footer (TASARIM.md §5) — koyu, 4 kolon
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--dark-bg);
  color: var(--dark-fg-muted);
  border-top: 1px solid var(--dark-border);
}
.site-footer a { color: var(--dark-fg-muted); }
.site-footer a:hover { color: var(--dark-fg); }

.site-footer__top {
  display: grid;
  gap: 2.5rem;
  padding-block: clamp(3rem, 6vw, 4.5rem);
  grid-template-columns: 1fr;
}
@media (min-width: 680px) {
  .site-footer__top { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}
.site-footer .brand { color: var(--dark-fg); margin-bottom: 1rem; }
.site-footer__about { max-width: 30ch; font-size: .9375rem; line-height: 1.6; }

.footer-col h4 {
  color: var(--dark-fg);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
.footer-col a { font-size: .9375rem; }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.5rem;
  border-top: 1px solid var(--dark-border);
  font-size: .875rem;
}
.site-footer__legal { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.site-footer__social { display: flex; gap: .5rem; }
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-sm);
}
.site-footer__social a:hover { border-color: var(--dark-border-strong); background: rgba(255,255,255,.05); }
.site-footer__social svg { width: 18px; height: 18px; }

/* --------------------------------------------------------------------------
   14. CTA bandı (koyu kapanış)
   -------------------------------------------------------------------------- */
.cta-band { text-align: center; }
.cta-band .h2 { max-width: 20ch; margin-inline: auto; }
.cta-band .lead { max-width: 46ch; margin: 1rem auto 0; }
.cta-band__actions { margin-top: 2rem; justify-content: center; }

/* --------------------------------------------------------------------------
   15. Çeşitli yardımcılar
   -------------------------------------------------------------------------- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-0 { margin-bottom: 0; }
.divider { height: 1px; background: var(--border); border: 0; margin: 0; }

.pill-list { display: flex; flex-wrap: wrap; gap: .5rem; }
.pill {
  display: inline-flex;
  align-items: center;
  padding: .4rem .85rem;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: .9375rem;
  font-weight: 500;
  color: var(--fg);
}

/* Fiyat kartı */
.price-card { display: flex; flex-direction: column; height: 100%; }
.price-card--featured { border-color: var(--accent); box-shadow: var(--shadow-md); }
.price-card__tier { font-size: .8125rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent-hover); }
.price-card__price { font-size: clamp(1.75rem, 3vw, 2.25rem); font-weight: 700; letter-spacing: -0.02em; margin: .5rem 0; }
.price-card__price small { font-size: .9375rem; font-weight: 500; color: var(--fg-muted); }
.price-card ul { list-style: none; display: flex; flex-direction: column; gap: .65rem; margin: 1.25rem 0; flex: 1; }
.price-card__foot { margin-top: auto; }

/* İçerik + görsel iki-kolon */
.media-row {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}
@media (min-width: 860px) {
  .media-row { grid-template-columns: 1fr 1fr; }
  .media-row--reverse .media-row__media { order: -1; }
}

/* --------------------------------------------------------------------------
   16. Hareket (TASARIM.md §7) — scroll-reveal
   -------------------------------------------------------------------------- */
/* İlerleyici geliştirme: reveal yalnız JS aktifken gizlenir (html.js). JS yoksa
   içerik daima görünür — <head>'deki inline classList.add('js') bunu kurar. */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
  will-change: opacity, transform;
}
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Güvenlik ağı: reduced-motion → animasyon yok, içerik görünür kalır */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .btn:hover, .card--hover:hover { transform: none; }
}