/* ==========================================================================
   Çerkezköy Arıtma — Design System v2 (Flagship)
   Author: Senior Product Designer
   Tokens · Typography · Layout · Components · Motion
   ========================================================================== */

/* ---------- 0. Design Tokens ---------- */
:root {
  /* Brand palette — derin okyanus + elektrik cyan */
  --c-ink-900:#061a2e;
  --c-ink-800:#0b2545;
  --c-ink-700:#143661;
  --c-ink-600:#1d4d83;
  --c-ink-500:#2e6aae;
  --c-accent-600:#0aa1b4;
  --c-accent-500:#13c4d9;
  --c-accent-400:#3edae9;
  --c-accent-300:#90ecf3;
  --c-accent-50:#e8fafd;
  --c-cream:#faf7f2;
  --c-cream-2:#f3eee5;
  --c-warm-amber:#f59f3b;
  --c-success:#10b981;
  --c-wa:#25d366;
  --c-wa-dark:#128c54;

  /* Neutrals */
  --c-white:#ffffff;
  --c-gray-50:#f7f9fc;
  --c-gray-100:#eef2f7;
  --c-gray-200:#e3e9f2;
  --c-gray-300:#cfd7e3;
  --c-gray-400:#94a3b8;
  --c-gray-500:#64748b;
  --c-gray-600:#475569;
  --c-gray-700:#334155;
  --c-gray-800:#1e293b;
  --c-gray-900:#0f172a;

  /* Surfaces */
  --surface:#ffffff;
  --surface-alt:#f7f9fc;
  --surface-deep:#061a2e;
  --surface-warm:#faf7f2;
  --border:rgba(15, 23, 42, .08);
  --border-strong:rgba(15, 23, 42, .14);

  /* Typography scale (1.25 modular) */
  --font-display: "Inter", "Inter Tight", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-12: 0.75rem;
  --fs-14: 0.875rem;
  --fs-16: 1rem;
  --fs-18: 1.125rem;
  --fs-20: 1.25rem;
  --fs-24: 1.5rem;
  --fs-28: 1.75rem;
  --fs-32: 2rem;
  --fs-40: 2.5rem;
  --fs-48: 3rem;
  --fs-60: 3.75rem;
  --fs-72: 4.5rem;

  /* Spacing — 8pt scale */
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:20px;
  --s-6:24px; --s-7:32px; --s-8:40px; --s-9:48px; --s-10:64px;
  --s-11:80px; --s-12:96px; --s-13:128px;

  /* Radius */
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:24px;
  --r-2xl:32px;
  --r-full:999px;

  /* Shadow system */
  --sh-xs: 0 1px 2px rgba(11, 37, 69, .06);
  --sh-sm: 0 2px 6px rgba(11, 37, 69, .06), 0 1px 2px rgba(11, 37, 69, .04);
  --sh-md: 0 8px 24px -8px rgba(11, 37, 69, .12), 0 2px 6px rgba(11, 37, 69, .06);
  --sh-lg: 0 24px 56px -16px rgba(11, 37, 69, .18), 0 4px 12px rgba(11, 37, 69, .08);
  --sh-xl: 0 40px 80px -24px rgba(11, 37, 69, .26);
  --sh-glow: 0 0 0 1px rgba(19, 196, 217, .25), 0 12px 32px -8px rgba(19, 196, 217, .35);

  /* Motion */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --t-fast: 120ms;
  --t-med: 240ms;
  --t-slow: 480ms;

  /* Layout */
  --container: 1280px;
  --container-narrow: 880px;
  --container-wide: 1440px;
  --header-h: 88px;
  --header-h-compact: 64px;
}

/* ---------- 1. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *,*::before,*::after{ animation:none!important; transition:none!important; } }
body {
  font-family: var(--font-body);
  font-size: var(--fs-16);
  line-height: 1.65;
  color: var(--c-gray-800);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv02","cv03","cv04","cv11","ss01";
  overflow-x: hidden;
}
img, svg, video { max-width:100%; height:auto; display:block; }
a { color: var(--c-accent-600); text-decoration: none; transition: color var(--t-fast) var(--ease-out); }
a:hover { color: var(--c-ink-700); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--c-accent-500); color: var(--c-ink-900); }

/* ---------- 2. Typography ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--c-ink-800);
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.15;
}
h1 { font-size: clamp(var(--fs-32), 5.6vw, var(--fs-60)); letter-spacing: -0.03em; line-height: 1.06; }
h2 { font-size: clamp(var(--fs-24), 3.6vw, var(--fs-40)); letter-spacing: -0.025em; line-height: 1.12; }
h3 { font-size: clamp(var(--fs-18), 2vw, var(--fs-24)); letter-spacing: -0.018em; }
h4 { font-size: var(--fs-18); }
p { color: var(--c-gray-700); margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: var(--fs-12); font-weight: 600;
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--c-accent-600);
}
.eyebrow::before {
  content:""; width: 24px; height: 1px; background: var(--c-accent-500);
}
.lede { font-size: var(--fs-18); color: var(--c-gray-600); max-width: 60ch; }

/* ---------- 3. Layout primitives ---------- */
.container { width:100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--s-6); }
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }
.section { padding: var(--s-11) 0; }
.section--lg { padding: var(--s-12) 0; }
.section--alt { background: var(--surface-alt); }
.section--cream { background: var(--surface-warm); }
.section--dark { background: var(--surface-deep); color: rgba(255,255,255,.85); }
.section--dark h1, .section--dark h2, .section--dark h3 { color:#fff; }
.section--dark p { color: rgba(255,255,255,.7); }
.section-head { max-width: 720px; margin: 0 auto var(--s-9); text-align: center; }
.section-head--left { text-align: left; margin-left: 0; }
.section-head .eyebrow { margin-bottom: var(--s-3); }
.section-head h2 { margin-bottom: var(--s-3); }
.section-head .lede { margin: 0 auto; }
.section-head--left .lede { margin: 0; }
.grid { display: grid; gap: var(--s-6); }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--c-ink-800); color:#fff; padding: var(--s-3) var(--s-5); z-index: 9999; }
.skip-link:focus { left: 0; }

@media (min-width: 768px) {
  .section { padding: var(--s-12) 0; }
  .section--lg { padding: var(--s-13) 0; }
}

/* ---------- 4. Scroll progress bar ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: transparent; z-index: 200; pointer-events: none;
}
.scroll-progress__bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--c-accent-500), var(--c-accent-600));
  transition: width 80ms linear;
}

/* ---------- 5. Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-med) var(--ease-out), background var(--t-med) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 6px 22px -16px rgba(11,37,69,.18);
}
.top-bar {
  background: var(--c-ink-800); color: rgba(255,255,255,.82);
  font-size: var(--fs-12); letter-spacing: 0.01em;
}
.top-bar__row { display: flex; align-items: center; justify-content: space-between; padding: var(--s-2) var(--s-6); gap: var(--s-5); flex-wrap: wrap; }
.top-bar__left, .top-bar__right { display: flex; align-items: center; gap: var(--s-5); flex-wrap: wrap; }
.top-bar__link { color: rgba(255,255,255,.82); display: inline-flex; align-items: center; gap: var(--s-2); }
.top-bar__link:hover { color: var(--c-accent-400); }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: var(--r-full); font-size: var(--fs-12); font-weight: 600; }
.badge--brand { background: linear-gradient(135deg, var(--c-accent-500), var(--c-accent-600)); color: var(--c-ink-900); }
.badge--brand::before { content:""; width:6px; height:6px; border-radius:50%; background: var(--c-ink-900); animation: pulse 2s var(--ease-out) infinite; }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:.5; } }
.header-main { display: flex; align-items: center; justify-content: space-between; padding: var(--s-5) var(--s-6); gap: var(--s-5); transition: padding var(--t-med) var(--ease-out); }
.is-scrolled .header-main { padding: var(--s-3) var(--s-6); }

.brand { display: inline-flex; align-items: center; gap: var(--s-3); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand__mark {
  width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--c-ink-800), var(--c-accent-600));
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--sh-sm), inset 0 1px 0 rgba(255,255,255,.2);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__title { font-family: var(--font-display); font-size: var(--fs-18); font-weight: 800; color: var(--c-ink-800); letter-spacing: -0.02em; }
.brand__sub { font-size: 10px; color: var(--c-gray-500); letter-spacing: .12em; text-transform: uppercase; font-weight: 600; }

.nav-toggle {
  position: relative; z-index: 120;
  width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-gray-100); border-radius: var(--r-md); color: var(--c-ink-800);
  transition: background var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);
}
.nav-toggle:hover { background: var(--c-gray-200); }
.nav-toggle span { display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; position: relative; transition: transform var(--t-med) var(--ease-out); }
.nav-toggle span::before, .nav-toggle span::after { content:""; position: absolute; left: 0; right: 0; height: 2px; background: currentColor; border-radius: 2px; transition: transform var(--t-med) var(--ease-out); }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle[aria-expanded="true"] {
  background: rgba(255, 255, 255, .12);
  color: #fff;
}
.nav-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(-90deg); opacity: 0; }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-90deg); }

/* Brand de menünün üzerinde kalsın ki kullanıcı nerede olduğunu görsün */
.brand { position: relative; z-index: 120; }

/* Body.menu-open: scroll kilidi (sadece overflow) + header'ın renk tonu menüyle birleşsin */
@media (max-width: 1023px) {
  body.menu-open { overflow: hidden; }
  html.menu-open { overflow: hidden; }
  body.menu-open .site-header {
    background: transparent;
    border-bottom-color: transparent;
    box-shadow: none;
  }
  body.menu-open .top-bar { background: transparent; color: rgba(255,255,255,.7); }
  body.menu-open .badge--brand { background: rgba(19,196,217,.2); color: #fff; }
  body.menu-open .top-bar__link { color: rgba(255,255,255,.85); }
  body.menu-open .brand__title { color: #fff; }
  body.menu-open .brand__sub { color: rgba(255,255,255,.55); }
}

.primary-nav {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;            /* iOS 15.4+ — dinamik viewport height */
  background: var(--c-ink-900);
  padding: 110px var(--s-6) calc(env(safe-area-inset-bottom, 0px) + var(--s-9));
  transform: translateY(-100%);
  transition: transform var(--t-slow) var(--ease-out);
  z-index: 99;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: var(--s-6);
}
.primary-nav.is-open { transform: translateY(0); }
.primary-nav.is-open { transform: translateY(0); }
.primary-nav ul { display: flex; flex-direction: column; gap: var(--s-1); }
.primary-nav li { border-bottom: 1px solid rgba(255,255,255,.07); }
.primary-nav a {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-5) 0; color: rgba(255,255,255,.85);
  font-size: var(--fs-20); font-weight: 500; letter-spacing: -0.01em;
  transition: color var(--t-fast) var(--ease-out);
}
.primary-nav a::after { content:"→"; color: var(--c-accent-500); opacity: 0; transform: translateX(-8px); transition: all var(--t-med) var(--ease-out); }
.primary-nav a:hover, .primary-nav a.is-active { color: var(--c-accent-400); text-decoration: none; }
.primary-nav a:hover::after, .primary-nav a.is-active::after { opacity:1; transform: translateX(0); }
.primary-nav__cta { display: flex; flex-direction: column; gap: var(--s-3); }
.primary-nav__cta .btn { width: 100%; justify-content: center; }
.primary-nav__contact { margin-top: auto; padding-top: var(--s-6); border-top: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.55); font-size: var(--fs-14); }
.primary-nav__contact strong { color: #fff; display: block; font-size: var(--fs-18); margin-top: 4px; }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .primary-nav {
    position: static; inset: auto; transform: none; padding: 0;
    width: auto; height: auto;            /* mobil 100dvh kuralını sıfırla */
    flex-direction: row; align-items: center; gap: var(--s-7);
    background: transparent; overflow: visible;
  }
  .primary-nav ul { flex-direction: row; gap: var(--s-1); }
  .primary-nav li { border: 0; }
  .primary-nav a {
    padding: var(--s-2) var(--s-3); font-size: var(--fs-14); font-weight: 500;
    color: var(--c-gray-700); border-radius: var(--r-sm); letter-spacing: 0;
  }
  .primary-nav a::after { display: none; }
  .primary-nav a:hover { background: var(--c-gray-100); color: var(--c-ink-800); }
  .primary-nav a.is-active { background: var(--c-ink-800); color: #fff; }
  .primary-nav__cta { flex-direction: row; }
  .primary-nav__cta .btn { width: auto; }
  .primary-nav__contact { display: none; }
}

/* ---------- 6. Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 14px 22px; border-radius: var(--r-md);
  font-size: var(--fs-14); font-weight: 600; letter-spacing: -0.01em;
  color: var(--c-ink-800); background: var(--c-white);
  border: 1px solid transparent;
  transition: transform var(--t-fast) var(--ease-out), box-shadow var(--t-med) var(--ease-out), background var(--t-med) var(--ease-out), color var(--t-fast) var(--ease-out);
  text-decoration: none; line-height: 1; cursor: pointer; min-height: 48px;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--c-ink-800); color: #fff; }
.btn--primary:hover { background: var(--c-ink-700); color: #fff; box-shadow: var(--sh-md); }
.btn--accent { background: linear-gradient(135deg, var(--c-accent-500), var(--c-accent-600)); color: var(--c-ink-900); font-weight: 700; }
.btn--accent:hover { color: var(--c-ink-900); box-shadow: var(--sh-glow); }
.btn--outline { background: transparent; color: var(--c-ink-800); border-color: var(--c-gray-300); }
.btn--outline:hover { background: var(--c-ink-800); color: #fff; border-color: var(--c-ink-800); }
.btn--outline-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.18); backdrop-filter: blur(8px); }
.btn--outline-light:hover { background: rgba(255,255,255,.16); color: #fff; }
.btn--ghost { background: var(--c-gray-100); color: var(--c-ink-800); }
.btn--ghost:hover { background: var(--c-gray-200); }
.btn--whatsapp { background: var(--c-wa); color: #fff; }
.btn--whatsapp:hover { background: var(--c-wa-dark); color: #fff; box-shadow: 0 12px 24px -10px rgba(37,211,102,.5); }
.btn--lg { padding: 18px 28px; font-size: var(--fs-16); min-height: 56px; border-radius: 14px; }
.btn--xl { padding: 22px 36px; font-size: var(--fs-18); min-height: 64px; border-radius: 16px; }
.btn--sm { padding: 10px 16px; font-size: var(--fs-12); min-height: 38px; }
.btn--block { width: 100%; display: flex; }
.btn-row { display: flex; gap: var(--s-3); flex-wrap: wrap; }

/* ---------- 7. Hero ---------- */
.hero { position: relative; overflow: hidden; isolation: isolate; background: linear-gradient(180deg, var(--c-ink-900) 0%, var(--c-ink-800) 100%); color: #fff; }
.hero__bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(19,196,217,.18), transparent 50%),
    radial-gradient(ellipse at 20% 90%, rgba(19,196,217,.10), transparent 50%),
    linear-gradient(180deg, var(--c-ink-900) 0%, var(--c-ink-800) 100%);
}
.hero__noise {
  position: absolute; inset: 0; opacity: .04; mix-blend-mode: overlay; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero__waves {
  position: absolute; bottom: -2px; left: 0; right: 0; height: 80px; z-index: 0; opacity: .35;
}
.hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr; gap: var(--s-9);
  align-items: center; padding: var(--s-11) 0 var(--s-12);
}
.hero__content { max-width: 640px; }
.hero__chip {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 6px 14px; border-radius: var(--r-full);
  background: rgba(19,196,217,.15); border: 1px solid rgba(19,196,217,.3);
  color: var(--c-accent-300); font-size: var(--fs-12); font-weight: 600;
  letter-spacing: .04em; margin-bottom: var(--s-5);
}
.hero__chip::before { content:""; width:6px; height:6px; border-radius:50%; background: var(--c-accent-400); box-shadow: 0 0 0 4px rgba(19,196,217,.25); }
.hero h1 { color: #fff; margin-bottom: var(--s-5); }
.hero__accent {
  background: linear-gradient(90deg, var(--c-accent-400), var(--c-accent-300));
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.hero__lede { color: rgba(255,255,255,.78); font-size: var(--fs-18); margin-bottom: var(--s-7); max-width: 540px; }
.hero__cta { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-8); }
.hero__signals { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-3) var(--s-6); margin-top: var(--s-7); }
.hero__signal { display: flex; align-items: flex-start; gap: var(--s-3); color: rgba(255,255,255,.85); font-size: var(--fs-14); }
.hero__signal-icon {
  flex-shrink: 0; width: 32px; height: 32px; border-radius: 10px;
  background: rgba(19,196,217,.15); color: var(--c-accent-400);
  display: inline-flex; align-items: center; justify-content: center;
}
.hero__signal strong { display: block; color: #fff; font-weight: 600; font-size: var(--fs-14); }
.hero__signal span { color: rgba(255,255,255,.6); font-size: 12px; }

/* Hero visual */
.hero__visual { position: relative; aspect-ratio: 1/1; max-width: 480px; margin: 0 auto; width: 100%; }
.hero__visual-card {
  position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.1); border-radius: var(--r-2xl);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero__visual-card::before {
  content:""; position: absolute; inset: -50%;
  background: conic-gradient(from 180deg, transparent, rgba(19,196,217,.3), transparent 30%);
  animation: hero-spin 12s linear infinite; opacity: .6;
}
@keyframes hero-spin { to { transform: rotate(360deg); } }
.hero__visual-card::after {
  content:""; position: absolute; inset: 1px; border-radius: calc(var(--r-2xl) - 1px);
  background: linear-gradient(160deg, #0d2e54 0%, #061a2e 100%);
}
.hero__visual-img { position: relative; z-index: 2; max-width: 72%; max-height: 72%; filter: drop-shadow(0 32px 64px rgba(0,0,0,.45)); animation: float 8s var(--ease-in-out) infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero__pill {
  position: absolute; z-index: 3;
  background: rgba(255,255,255,.96); backdrop-filter: blur(12px);
  padding: var(--s-3) var(--s-4); border-radius: var(--r-lg);
  display: flex; align-items: center; gap: var(--s-3);
  box-shadow: var(--sh-lg); font-size: var(--fs-14); color: var(--c-ink-800);
  animation: pill-float 6s var(--ease-in-out) infinite;
}
.hero__pill--1 { top: 8%; left: -10px; }
.hero__pill--2 { bottom: 12%; right: -10px; animation-delay: -3s; }
.hero__pill strong { display: block; color: var(--c-ink-900); font-size: var(--fs-16); }
.hero__pill small { color: var(--c-gray-500); font-size: 12px; }
.hero__pill-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--c-accent-50); color: var(--c-accent-600); display: inline-flex; align-items: center; justify-content: center; }
@keyframes pill-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

@media (min-width: 1024px) {
  .hero__inner { grid-template-columns: 1.05fr .95fr; gap: var(--s-12); padding: var(--s-13) 0; }
  .hero__visual { max-width: 520px; }
}

/* ---------- 8. Trust strip ---------- */
.trust-strip {
  background: var(--surface-deep); color: rgba(255,255,255,.6);
  padding: var(--s-7) 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.trust-strip__row {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--s-5);
  align-items: center;
}
.trust-strip__item { display: flex; flex-direction: column; gap: 4px; padding: 0 var(--s-3); border-right: 1px solid rgba(255,255,255,.08); }
.trust-strip__item:last-child { border-right: 0; }
.trust-strip__num { font-family: var(--font-display); font-size: var(--fs-28); font-weight: 700; color: #fff; letter-spacing: -0.02em; line-height: 1; }
.trust-strip__num span { color: var(--c-accent-400); }
.trust-strip__label { font-size: var(--fs-12); text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.55); }
@media (min-width: 768px) { .trust-strip__row { grid-template-columns: repeat(4, 1fr); } .trust-strip__num { font-size: var(--fs-40); } }

/* ---------- 9. Stats counter ---------- */
.stats-strip { background: var(--surface-warm); padding: var(--s-9) 0; }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-6); }
.stat-card {
  background: #fff; border-radius: var(--r-lg); padding: var(--s-6);
  border: 1px solid var(--border); display: flex; flex-direction: column; gap: var(--s-2);
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--sh-md); }
.stat-card__num { font-family: var(--font-display); font-size: var(--fs-48); font-weight: 800; color: var(--c-ink-800); letter-spacing: -0.04em; line-height: 1; }
.stat-card__num--accent { color: var(--c-accent-600); }
.stat-card__label { color: var(--c-gray-600); font-size: var(--fs-14); }
@media (min-width: 768px) { .stats-grid { grid-template-columns: repeat(4, 1fr); } }

/* ---------- 10. Category bento grid ---------- */
.cat-bento { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-4); }
.cat-card {
  position: relative; overflow: hidden;
  background: var(--c-white); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: var(--s-6);
  display: flex; flex-direction: column; gap: var(--s-3);
  text-decoration: none; color: inherit;
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out), border-color var(--t-med) var(--ease-out);
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); border-color: var(--c-accent-400); text-decoration: none; color: inherit; }
.cat-card::before {
  content:""; position: absolute; right: -40px; top: -40px;
  width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(circle, var(--c-accent-50) 0%, transparent 70%);
  opacity: .6; transition: transform var(--t-slow) var(--ease-out);
}
.cat-card:hover::before { transform: scale(1.4); }
.cat-card > * { position: relative; z-index: 1; }
.cat-card__icon {
  width: 52px; height: 52px; border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-ink-800), var(--c-ink-700));
  color: var(--c-accent-400);
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--sh-sm), inset 0 1px 0 rgba(255,255,255,.1);
}
.cat-card h3 { margin: 0; font-size: var(--fs-20); color: var(--c-ink-800); }
.cat-card p { margin: 0; font-size: var(--fs-14); color: var(--c-gray-600); flex: 1; }
.cat-card__more { display: inline-flex; align-items: center; gap: 6px; color: var(--c-ink-800); font-weight: 600; font-size: var(--fs-14); margin-top: var(--s-2); }
.cat-card__more::after { content:"→"; transition: transform var(--t-med) var(--ease-out); }
.cat-card:hover .cat-card__more { color: var(--c-accent-600); }
.cat-card:hover .cat-card__more::after { transform: translateX(4px); }
@media (min-width: 768px) {
  .cat-bento { grid-template-columns: repeat(4, 1fr); }
  .cat-bento .cat-card:nth-child(1) { grid-column: span 2; grid-row: span 2; min-height: 280px; }
}

/* Compact category grid (district pages) */
.cat-grid--compact { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--s-4); }

/* ---------- 11. Category chip row ---------- */
.cat-chip-row {
  display: flex; gap: var(--s-2); overflow-x: auto;
  padding: var(--s-2) 0; margin-bottom: var(--s-7);
  scrollbar-width: thin; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.cat-chip-row::-webkit-scrollbar { height: 4px; }
.cat-chip {
  display: inline-flex; align-items: center; padding: 10px 18px; border-radius: var(--r-full);
  background: var(--c-white); color: var(--c-gray-700); border: 1px solid var(--border);
  white-space: nowrap; font-size: var(--fs-14); font-weight: 500;
  transition: all var(--t-fast) var(--ease-out);
  scroll-snap-align: start;
}
.cat-chip:hover { border-color: var(--c-ink-800); color: var(--c-ink-800); text-decoration: none; }
.cat-chip.is-active { background: var(--c-ink-800); color: #fff; border-color: var(--c-ink-800); }

/* ---------- 12. Product cards ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--s-5);
}
.product-card {
  position: relative;
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out), border-color var(--t-med) var(--ease-out);
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--sh-lg); border-color: var(--c-accent-400); }
.product-card__media {
  display: block; position: relative; aspect-ratio: 1/1;
  background: linear-gradient(135deg, var(--c-cream) 0%, var(--c-gray-50) 100%);
  overflow: hidden;
}
.product-card__media img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain;
  padding: var(--s-5); transition: transform var(--t-slow) var(--ease-out);
}
.product-card:hover .product-card__media img { transform: scale(1.06); }
.product-card__badge {
  position: absolute; top: var(--s-3); left: var(--s-3);
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  padding: 5px 11px; border-radius: var(--r-full);
  font-size: 11px; font-weight: 600; color: var(--c-ink-800);
  letter-spacing: 0.02em;
}
.product-card__wa-fab {
  position: absolute; top: var(--s-3); right: var(--s-3);
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--c-wa); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  opacity: 0; transform: scale(.7);
  transition: all var(--t-med) var(--ease-out);
  box-shadow: var(--sh-md);
}
.product-card:hover .product-card__wa-fab { opacity: 1; transform: scale(1); }
.product-card__wa-fab:hover { background: var(--c-wa-dark); color: #fff; }
.product-card__body { padding: var(--s-5); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.product-card__cat { font-size: 11px; color: var(--c-gray-500); text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.product-card__title { font-size: var(--fs-16); margin: 2px 0; letter-spacing: -0.015em; line-height: 1.25; }
.product-card__title a { color: var(--c-ink-800); }
.product-card__title a:hover { color: var(--c-accent-600); text-decoration: none; }
.product-card__excerpt { font-size: var(--fs-14); color: var(--c-gray-600); margin: 0; line-height: 1.5; flex: 1; }
.product-card__footer { display: flex; align-items: center; justify-content: space-between; margin-top: var(--s-4); padding-top: var(--s-4); border-top: 1px solid var(--border); gap: var(--s-3); }
.product-card__detail-link { font-size: var(--fs-14); font-weight: 600; color: var(--c-ink-800); display: inline-flex; align-items: center; gap: 4px; }
.product-card__detail-link::after { content:"→"; transition: transform var(--t-med) var(--ease-out); }
.product-card__detail-link:hover { color: var(--c-accent-600); }
.product-card__detail-link:hover::after { transform: translateX(3px); }

/* Product groups in /urunler */
.product-group { margin-bottom: var(--s-11); }
.product-group__head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: var(--s-2); gap: var(--s-4); flex-wrap: wrap; }
.product-group__head h2 { margin: 0; }
.product-group__intro { color: var(--c-gray-600); margin-bottom: var(--s-6); max-width: 70ch; }
.product-group__more { color: var(--c-ink-800); font-weight: 600; font-size: var(--fs-14); }
.product-group__more::after { content:" →"; transition: transform var(--t-med) var(--ease-out); display: inline-block; }
.product-group__more:hover { color: var(--c-accent-600); }

/* ---------- 13. Product detail ---------- */
.product-detail__grid { display: grid; gap: var(--s-8); grid-template-columns: 1fr; align-items: start; }
.product-detail__media {
  position: relative; aspect-ratio: 1/1;
  background: linear-gradient(135deg, var(--c-cream) 0%, var(--c-gray-50) 100%);
  border-radius: var(--r-2xl); padding: var(--s-9);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.product-detail__media::before {
  content:""; position: absolute; right: -80px; top: -80px;
  width: 280px; height: 280px; border-radius: 50%;
  background: radial-gradient(circle, var(--c-accent-50), transparent 70%);
  opacity: .8;
}
.product-detail__media img { position: relative; z-index: 1; max-width: 100%; max-height: 100%; object-fit: contain; filter: drop-shadow(0 32px 56px rgba(11,37,69,.15)); }
.product-detail__badge {
  position: absolute; top: var(--s-5); left: var(--s-5); z-index: 2;
  background: var(--c-ink-800); color: #fff;
  padding: 6px 14px; border-radius: var(--r-full); font-size: 11px; font-weight: 600;
  letter-spacing: .04em;
}
.product-detail__body { padding: var(--s-2) 0; }
.product-detail__cat {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: var(--fs-12); color: var(--c-gray-500); margin-bottom: var(--s-3);
  text-transform: uppercase; letter-spacing: .1em; font-weight: 600;
}
.product-detail__cat:hover { color: var(--c-accent-600); text-decoration: none; }
.product-detail__body h1 { margin-bottom: var(--s-4); font-size: clamp(var(--fs-28), 4vw, var(--fs-40)); }
.product-detail__short { font-size: var(--fs-18); color: var(--c-gray-600); margin-bottom: var(--s-6); }
.feature-list { display: grid; grid-template-columns: 1fr; gap: var(--s-2) var(--s-4); margin-bottom: var(--s-6); }
.feature-list li { display: flex; align-items: flex-start; gap: var(--s-2); color: var(--c-gray-700); font-size: var(--fs-14); }
.feature-list li::before {
  content:"✓"; flex-shrink: 0; width: 20px; height: 20px;
  background: var(--c-accent-50); color: var(--c-accent-600);
  border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; margin-top: 1px;
}
.product-detail__cta { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-7); }
.product-detail__benefits { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-3); }
.pdb {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-4); background: var(--c-gray-50);
  border: 1px solid var(--border); border-radius: var(--r-md);
}
.pdb__icon {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 10px;
  background: var(--c-accent-50); color: var(--c-accent-600);
  display: inline-flex; align-items: center; justify-content: center;
}
.pdb strong { display: block; color: var(--c-ink-800); font-size: var(--fs-14); }
.pdb small { color: var(--c-gray-500); font-size: var(--fs-12); }

@media (min-width: 1024px) {
  .product-detail__grid { grid-template-columns: 1fr 1.1fr; gap: var(--s-10); }
  .feature-list { grid-template-columns: 1fr 1fr; }
}

/* Tabs on detail content */
.product-tabs { display: flex; gap: var(--s-1); border-bottom: 1px solid var(--border); margin-bottom: var(--s-7); overflow-x: auto; scrollbar-width: none; }
.product-tabs::-webkit-scrollbar { display: none; }
.product-tab {
  position: relative; padding: var(--s-4) var(--s-5);
  font-weight: 600; font-size: var(--fs-14); color: var(--c-gray-500);
  white-space: nowrap; cursor: pointer; transition: color var(--t-fast) var(--ease-out);
  border-bottom: 2px solid transparent;
}
.product-tab:hover { color: var(--c-ink-800); }
.product-tab.is-active { color: var(--c-ink-800); border-bottom-color: var(--c-accent-500); }
.product-tab-panel { display: none; }
.product-tab-panel.is-active { display: block; animation: fadeIn 360ms var(--ease-out); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.product-content { display: grid; gap: var(--s-8); }
.product-content__main { font-size: var(--fs-16); line-height: 1.7; }
.product-content__main h2 { margin: var(--s-8) 0 var(--s-4); }
.product-content__main h3 { margin: var(--s-7) 0 var(--s-3); font-size: var(--fs-20); }
.product-content__main p { color: var(--c-gray-700); }
.product-content__main ul:not([class]) { padding-left: 1.2em; list-style: disc; color: var(--c-gray-700); margin-bottom: 1em; }
.product-content__main ul:not([class]) li { padding: 4px 0; }
.product-content__side {  }
.spec-table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden;
  font-size: var(--fs-14); margin-bottom: var(--s-6);
}
.spec-table th, .spec-table td { padding: var(--s-3) var(--s-5); text-align: left; border-bottom: 1px solid var(--border); }
.spec-table th { background: var(--c-gray-50); color: var(--c-gray-800); font-weight: 600; width: 40%; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table tr:hover td, .spec-table tr:hover th { background: var(--c-accent-50); }

.info-card {
  position: sticky; top: calc(var(--header-h) + var(--s-5));
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--s-6); box-shadow: var(--sh-sm);
}
.info-card h4 { margin-bottom: var(--s-3); color: var(--c-ink-800); }
.info-card hr { border: 0; border-top: 1px solid var(--border); margin: var(--s-5) 0; }
.info-card__row { display: flex; align-items: center; gap: var(--s-3); padding: var(--s-2) 0; font-size: var(--fs-14); color: var(--c-gray-600); }
.info-card__row strong { color: var(--c-ink-800); font-weight: 600; }
.info-card__row .icon { color: var(--c-accent-600); flex-shrink: 0; }

@media (min-width: 960px) { .product-content { grid-template-columns: 1fr 340px; gap: var(--s-9); } }

/* ---------- 14. Process timeline ---------- */
.process { position: relative; }
.process-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-5); position: relative; }
.process-step {
  position: relative; padding: var(--s-7) var(--s-6);
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out);
}
.process-step:hover { transform: translateY(-3px); box-shadow: var(--sh-md); }
.process-step__num {
  position: absolute; top: var(--s-6); right: var(--s-6);
  font-family: var(--font-display); font-size: var(--fs-48); font-weight: 800;
  color: var(--c-gray-100); line-height: 1; letter-spacing: -0.04em;
  transition: color var(--t-med) var(--ease-out);
}
.process-step:hover .process-step__num { color: var(--c-accent-300); }
.process-step__icon {
  width: 56px; height: 56px; border-radius: var(--r-md); margin-bottom: var(--s-5);
  background: linear-gradient(135deg, var(--c-ink-800), var(--c-ink-700));
  color: var(--c-accent-400);
  display: inline-flex; align-items: center; justify-content: center;
}
.process-step h3 { margin-bottom: var(--s-2); }
.process-step p { color: var(--c-gray-600); font-size: var(--fs-14); margin: 0; }
@media (min-width: 768px) { .process-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 15. Testimonials ---------- */
.testimonial-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-5); }
.testimonial {
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--s-7); position: relative;
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out);
}
.testimonial:hover { transform: translateY(-2px); box-shadow: var(--sh-md); }
.testimonial__quote {
  position: absolute; top: var(--s-5); right: var(--s-5);
  font-family: var(--font-display); font-size: var(--fs-72); line-height: 1;
  color: var(--c-accent-300); opacity: .5;
}
.testimonial__stars { color: var(--c-warm-amber); margin-bottom: var(--s-3); font-size: var(--fs-14); letter-spacing: 2px; }
.testimonial__text { color: var(--c-gray-700); font-size: var(--fs-16); margin-bottom: var(--s-5); line-height: 1.65; }
.testimonial__person { display: flex; align-items: center; gap: var(--s-3); }
.testimonial__avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-ink-700), var(--c-accent-600));
  color: #fff; display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700;
}
.testimonial__name { font-weight: 600; color: var(--c-ink-800); font-size: var(--fs-14); }
.testimonial__location { font-size: var(--fs-12); color: var(--c-gray-500); }
@media (min-width: 768px) { .testimonial-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 16. Why split layout ---------- */
.why-grid { display: grid; gap: var(--s-9); align-items: center; }
.why-list { display: flex; flex-direction: column; gap: var(--s-5); margin-top: var(--s-6); }
.why-item { display: flex; gap: var(--s-4); }
.why-item__num {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--c-accent-500), var(--c-accent-600));
  color: var(--c-ink-900); font-family: var(--font-display); font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: var(--sh-sm);
}
.why-item strong { display: block; color: var(--c-ink-800); font-size: var(--fs-18); margin-bottom: 4px; }
.why-item p { color: var(--c-gray-600); font-size: var(--fs-14); margin: 0; }
.why-visual { position: relative; aspect-ratio: 1/1; max-width: 480px; margin: 0 auto; width: 100%; }
.why-visual__card {
  position: absolute; inset: 0; border-radius: var(--r-2xl); overflow: hidden;
  background: linear-gradient(160deg, var(--c-ink-900), var(--c-ink-700));
  box-shadow: var(--sh-xl);
}
@media (min-width: 1024px) { .why-grid { grid-template-columns: 1fr 1fr; gap: var(--s-12); } }

/* ---------- 17. District pills ---------- */
.district-pills { display: flex; flex-wrap: wrap; gap: var(--s-2); justify-content: center; }
.district-pill {
  display: inline-flex; align-items: center; padding: 10px 18px;
  border-radius: var(--r-full); background: #fff;
  border: 1px solid var(--border); color: var(--c-gray-700);
  font-size: var(--fs-14); font-weight: 500;
  transition: all var(--t-fast) var(--ease-out);
}
.district-pill:hover { background: var(--c-ink-800); color: #fff; border-color: var(--c-ink-800); text-decoration: none; transform: translateY(-1px); }
.district-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--s-5); margin-top: var(--s-7); }
.district-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--s-6); color: inherit;
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out), border-color var(--t-med) var(--ease-out);
}
.district-card::before {
  content:""; position: absolute; right: -40px; top: -40px;
  width: 120px; height: 120px; border-radius: 50%;
  background: radial-gradient(circle, var(--c-accent-50), transparent 70%);
}
.district-card:hover { transform: translateY(-2px); box-shadow: var(--sh-md); border-color: var(--c-accent-400); text-decoration: none; }
.district-card h3 { margin-bottom: var(--s-2); position: relative; }
.district-card__more { color: var(--c-accent-600); font-weight: 600; font-size: var(--fs-14); margin-top: var(--s-3); display: inline-flex; align-items: center; gap: 4px; }
.district-card__more::after { content:"→"; transition: transform var(--t-med) var(--ease-out); }
.district-card:hover .district-card__more::after { transform: translateX(3px); }

/* ---------- 18. Blog cards ---------- */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--s-6); }
.post-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out);
}
.post-card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); }
.post-card__media {
  display: block; aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--c-ink-800) 0%, var(--c-accent-600) 100%);
  position: relative; overflow: hidden;
}
.post-card__media::before {
  content:""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255,255,255,.15), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(19,196,217,.25), transparent 50%);
}
.post-card__body { padding: var(--s-5); flex: 1; display: flex; flex-direction: column; gap: var(--s-2); }
.post-card__body time { font-size: var(--fs-12); color: var(--c-gray-500); text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.post-card__title { font-size: var(--fs-18); margin: 0; line-height: 1.3; }
.post-card__title a, .post-card h3 a { color: var(--c-ink-800); }
.post-card__title a:hover { color: var(--c-accent-600); text-decoration: none; }
.post-card p { color: var(--c-gray-600); font-size: var(--fs-14); margin: 0; }
.post-card__link { color: var(--c-accent-600); font-weight: 600; font-size: var(--fs-14); margin-top: auto; padding-top: var(--s-3); display: inline-flex; align-items: center; gap: 4px; }
.post-card__link::after { content:"→"; transition: transform var(--t-med) var(--ease-out); }
.post-card:hover .post-card__link::after { transform: translateX(3px); }

.blog-article { background: var(--surface); }
.blog-article__head { text-align: center; max-width: 720px; margin: 0 auto var(--s-9); }
.blog-article__head time { font-size: var(--fs-14); color: var(--c-accent-600); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
.blog-article__head h1 { margin: var(--s-3) 0; }
.blog-article__excerpt { font-size: var(--fs-20); color: var(--c-gray-600); line-height: 1.5; }
.blog-article h2 { margin-top: var(--s-9); margin-bottom: var(--s-4); }
.blog-article p { font-size: var(--fs-17, 1.0625rem); color: var(--c-gray-700); line-height: 1.75; }
.blog-article__cta {
  background: var(--surface-warm); border-radius: var(--r-lg);
  padding: var(--s-7); margin-top: var(--s-10); text-align: center;
}

/* ---------- 19. FAQ ---------- */
.faq-section {  }
.faq { display: flex; flex-direction: column; gap: var(--s-2); max-width: 820px; margin: 0 auto; }
.faq__item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-md);
  transition: border-color var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out);
}
.faq__item:hover { border-color: var(--c-gray-300); }
.faq__item[open] { border-color: var(--c-accent-400); box-shadow: var(--sh-sm); }
.faq__item summary {
  padding: var(--s-5) var(--s-6); cursor: pointer; font-weight: 600;
  color: var(--c-ink-800); font-size: var(--fs-16); list-style: none;
  position: relative; padding-right: 64px;
  display: flex; align-items: center;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content:"+"; position: absolute; right: var(--s-6); top: 50%;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--c-gray-100); color: var(--c-ink-800);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: var(--fs-18); font-weight: 400;
  transform: translateY(-50%);
  transition: transform var(--t-med) var(--ease-out), background var(--t-med) var(--ease-out);
}
.faq__item[open] summary::after { content:"−"; background: var(--c-accent-500); color: var(--c-ink-900); }
.faq__answer { padding: 0 var(--s-6) var(--s-5); color: var(--c-gray-700); font-size: var(--fs-15, .9375rem); line-height: 1.7; }

/* ---------- 20. CTA banners ---------- */
.cta-banner {
  position: relative; overflow: hidden; isolation: isolate;
  background: linear-gradient(135deg, var(--c-ink-900) 0%, var(--c-ink-700) 60%, var(--c-accent-600) 130%);
  color: #fff;
}
.cta-banner::before {
  content:""; position: absolute; inset: 0; z-index: -1; opacity: .3;
  background: radial-gradient(ellipse at 80% 20%, rgba(19,196,217,.6), transparent 50%);
}
.cta-banner__inner { display: grid; grid-template-columns: 1fr; gap: var(--s-6); align-items: center; padding: var(--s-10) 0; }
.cta-banner h2 { color: #fff; max-width: 18ch; }
.cta-banner p { color: rgba(255,255,255,.8); margin: 0; }
.cta-banner__buttons { display: flex; gap: var(--s-3); flex-wrap: wrap; }
@media (min-width: 768px) { .cta-banner__inner { grid-template-columns: 1.4fr auto; padding: var(--s-12) 0; } }

.cta-strip {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-5);
  flex-wrap: wrap; background: var(--surface-warm); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: var(--s-6);
}
.cta-strip h3 { margin-bottom: 4px; }
.cta-strip p { margin: 0; color: var(--c-gray-600); font-size: var(--fs-14); }
.cta-strip > div:last-child { display: flex; gap: var(--s-3); flex-wrap: wrap; }

/* ---------- 21. Page heads ---------- */
.page-head { max-width: 820px; margin: 0 0 var(--s-8); }
.page-head .eyebrow { margin-bottom: var(--s-3); }
.page-head h1 { margin-bottom: var(--s-4); }
.page-head .lede { color: var(--c-gray-600); font-size: var(--fs-18); }

/* ---------- 22. Breadcrumb ---------- */
.breadcrumb { background: transparent; padding: var(--s-5) 0 0; font-size: var(--fs-13, .8125rem); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; color: var(--c-gray-500); }
.breadcrumb li + li::before { content:"›"; color: var(--c-gray-400); font-size: var(--fs-14); }
.breadcrumb a { color: var(--c-gray-600); }
.breadcrumb a:hover { color: var(--c-ink-800); }
.breadcrumb [aria-current] { color: var(--c-ink-800); font-weight: 500; }

/* ---------- 23. Contact ---------- */
.contact-grid { display: grid; gap: var(--s-8); }
.contact-grid > div h1 { margin-bottom: var(--s-3); }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); margin-top: var(--s-6); }
.contact-card {
  display: flex; align-items: center; gap: var(--s-3);
  padding: var(--s-4); background: #fff; border: 1px solid var(--border);
  border-radius: var(--r-md); color: inherit;
  transition: all var(--t-fast) var(--ease-out);
}
.contact-card:hover:not(.contact-card--static) { border-color: var(--c-accent-400); transform: translateY(-1px); box-shadow: var(--sh-sm); text-decoration: none; }
.contact-card__icon {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: var(--r-md);
  display: inline-flex; align-items: center; justify-content: center;
}
.contact-card strong { display: block; font-size: var(--fs-14); color: var(--c-ink-800); }
.contact-card span { color: var(--c-gray-500); font-size: var(--fs-13, .8125rem); }

.contact-form-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--s-7); box-shadow: var(--sh-sm);
}
.contact-form-card label { display: block; margin-bottom: var(--s-4); font-weight: 600; font-size: var(--fs-14); color: var(--c-ink-800); }
.contact-form-card input, .contact-form-card textarea {
  display: block; width: 100%; padding: 14px 16px; margin-top: 6px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--c-gray-50); font-size: var(--fs-16);
  transition: all var(--t-fast) var(--ease-out);
}
.contact-form-card input:hover, .contact-form-card textarea:hover { background: #fff; }
.contact-form-card input:focus, .contact-form-card textarea:focus { outline: 0; border-color: var(--c-accent-500); background: #fff; box-shadow: 0 0 0 4px rgba(19,196,217,.15); }
.alert { padding: var(--s-4) var(--s-5); border-radius: var(--r-md); margin-bottom: var(--s-5); font-size: var(--fs-14); }
.alert--ok { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert--err { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.form-foot { font-size: var(--fs-12); color: var(--c-gray-500); margin-top: var(--s-4); }

@media (min-width: 960px) { .contact-grid { grid-template-columns: 1.1fr 1fr; gap: var(--s-10); } }

/* ---------- 24. Footer ---------- */
.site-footer { background: var(--surface-deep); color: rgba(255,255,255,.7); padding: var(--s-12) 0 0; margin-top: var(--s-12); position: relative; }
.site-footer::before { content:""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--c-accent-500) 50%, transparent); opacity: .4; }
.site-footer h3 { color: #fff; font-size: var(--fs-14); margin-bottom: var(--s-5); text-transform: uppercase; letter-spacing: .1em; font-weight: 600; }
.footer-grid { display: grid; gap: var(--s-8); }
.footer-about { font-size: var(--fs-14); color: rgba(255,255,255,.6); margin: var(--s-4) 0; line-height: 1.7; }
.footer-contact { display: flex; flex-direction: column; gap: var(--s-2); font-size: var(--fs-14); }
.footer-contact a, .footer-contact span { color: rgba(255,255,255,.8); display: inline-flex; align-items: center; gap: var(--s-2); }
.footer-contact a:hover { color: var(--c-accent-400); }
.footer-links { display: flex; flex-direction: column; gap: var(--s-2); }
.footer-links a { color: rgba(255,255,255,.6); font-size: var(--fs-14); }
.footer-links a:hover { color: var(--c-accent-400); }
.footer-bottom {
  background: rgba(0,0,0,.25); margin-top: var(--s-9); padding: var(--s-5) 0;
  font-size: var(--fs-12); color: rgba(255,255,255,.55);
}
.footer-bottom__row { display: flex; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

/* ---------- 25. Mobile bottom bar ---------- */
.mobile-bar {
  position: fixed; bottom: 12px; left: 12px; right: 12px; z-index: 90;
  background: rgba(11,37,69,.92); backdrop-filter: blur(20px);
  border-radius: var(--r-xl); box-shadow: var(--sh-xl), inset 0 1px 0 rgba(255,255,255,.05);
  display: grid; grid-template-columns: 1fr 1.6fr 1fr;
  padding: 6px; gap: 4px;
}
.mobile-bar__item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--s-3) var(--s-2); border-radius: var(--r-md);
  color: rgba(255,255,255,.85); font-size: 11px; font-weight: 600; gap: 3px;
  min-height: 52px;
  transition: background var(--t-fast) var(--ease-out);
}
.mobile-bar__item svg { color: var(--c-accent-400); }
.mobile-bar__item:hover { background: rgba(255,255,255,.06); text-decoration: none; color: #fff; }
.mobile-bar__item--wa { background: var(--c-wa); color: #fff; }
.mobile-bar__item--wa svg { color: #fff; }
.mobile-bar__item--wa:hover { background: var(--c-wa-dark); color: #fff; }

body { padding-bottom: 86px; }
@media (min-width: 1024px) { .mobile-bar { display: none; } body { padding-bottom: 0; } }

/* ---------- 26. Floating WhatsApp FAB (desktop) ---------- */
.wa-fab {
  position: fixed; bottom: 24px; right: 24px; z-index: 91;
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--c-wa); color: #fff;
  display: none; align-items: center; justify-content: center;
  box-shadow: 0 18px 48px -12px rgba(37,211,102,.5), 0 0 0 0 rgba(37,211,102,.5);
  animation: wa-pulse 2.4s var(--ease-out) infinite;
  transition: transform var(--t-med) var(--ease-out);
}
.wa-fab:hover { background: var(--c-wa-dark); color: #fff; transform: scale(1.08); text-decoration: none; }
@keyframes wa-pulse {
  0% { box-shadow: 0 18px 48px -12px rgba(37,211,102,.5), 0 0 0 0 rgba(37,211,102,.45); }
  70% { box-shadow: 0 18px 48px -12px rgba(37,211,102,.5), 0 0 0 18px rgba(37,211,102,0); }
  100% { box-shadow: 0 18px 48px -12px rgba(37,211,102,.5), 0 0 0 0 rgba(37,211,102,0); }
}
@media (min-width: 1024px) { .wa-fab { display: inline-flex; } }

/* ---------- 27. Legal page typography ---------- */
.legal-page h1 { margin-bottom: var(--s-7); }
.legal-page h2 { margin: var(--s-8) 0 var(--s-3); }
.legal-page p { color: var(--c-gray-700); font-size: var(--fs-15, .9375rem); line-height: 1.75; }
.bullet-list { display: flex; flex-direction: column; gap: var(--s-2); margin: var(--s-3) 0 var(--s-5); }
.bullet-list li { padding-left: var(--s-6); position: relative; color: var(--c-gray-700); font-size: var(--fs-15, .9375rem); }
.bullet-list li::before {
  content:"✓"; position: absolute; left: 0; top: 1px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--c-accent-50); color: var(--c-accent-600);
  font-size: 10px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}

/* ---------- 28. Scroll reveal animations ---------- */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); will-change: opacity, transform; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal][data-delay="100"] { transition-delay: 100ms; }
[data-reveal][data-delay="200"] { transition-delay: 200ms; }
[data-reveal][data-delay="300"] { transition-delay: 300ms; }
[data-reveal][data-delay="400"] { transition-delay: 400ms; }

/* ---------- 29. Utilities ---------- */
.text-center { text-align: center; }
.mt-2 { margin-top: var(--s-5); } .mt-3 { margin-top: var(--s-7); } .mt-4 { margin-top: var(--s-9); }
.mb-2 { margin-bottom: var(--s-5); } .mb-3 { margin-bottom: var(--s-7); }
.no-mobile { display: none; }
@media (min-width: 768px) { .no-mobile { display: block; } .only-mobile { display: none; } }

/* ==========================================================================
   30. MOBİL DETAY POLİSAJ — ≤ 640px
   Senior designer notu: viewport'tan taşma, çakışma, layer yığılma, font ölçekleme.
   ========================================================================== */
@media (max-width: 640px) {

  /* ---- Container & Section ritmi ---- */
  .container { padding: 0 var(--s-4); }
  .section { padding: var(--s-9) 0; }
  .section-head { margin-bottom: var(--s-7); }
  .section-head .lede { font-size: var(--fs-16); }

  /* ---- Top bar — sıkı, tek satır kalsın ---- */
  .top-bar { font-size: 11px; }
  .top-bar__row { padding: 6px var(--s-4); gap: var(--s-3); }
  .top-bar__left, .top-bar__right { gap: var(--s-3); }
  .badge--brand { font-size: 10px; padding: 2px 8px; }

  /* ---- Header ---- */
  .header-main { padding: var(--s-3) var(--s-4); }
  .brand__mark { width: 38px; height: 38px; }
  .brand__title { font-size: 1rem; }
  .brand__sub { font-size: 9px; }

  /* ---- Hero — başlık ölçekle, padding sıkıştır ---- */
  .hero__inner { padding: var(--s-9) 0 var(--s-10); gap: var(--s-7); }
  .hero__content { max-width: 100%; }
  .hero h1 { font-size: clamp(1.6rem, 7.2vw, 2.2rem); }
  .hero__chip { font-size: 11px; padding: 5px 11px; margin-bottom: var(--s-3); }
  .hero__lede { font-size: var(--fs-16); }
  .hero__cta { gap: var(--s-2); }
  .hero__cta .btn { flex: 1 1 100%; }    /* tam genişlikte yığın */
  .btn--xl { padding: 18px 22px; font-size: var(--fs-16); min-height: 56px; }

  /* Hero sinyalleri — 1 kolon, ikonlar küçülür */
  .hero__signals { grid-template-columns: 1fr; gap: var(--s-3); margin-top: var(--s-5); }
  .hero__signal-icon { width: 28px; height: 28px; }
  .hero__signal { gap: var(--s-2); }

  /* Hero visual — pill'ler viewport'tan taşmasın */
  .hero__visual { max-width: 320px; }
  .hero__pill { padding: var(--s-2) var(--s-3); font-size: 12px; }
  .hero__pill strong { font-size: 13px; }
  .hero__pill small { font-size: 10px; }
  .hero__pill-icon { width: 28px; height: 28px; }
  .hero__pill--1 { top: 6%; left: 4px; }
  .hero__pill--2 { bottom: 8%; right: 4px; }

  /* ---- Trust strip — 2 kolon, alt sınırlar ---- */
  .trust-strip { padding: var(--s-6) 0; }
  .trust-strip__row { gap: var(--s-4) var(--s-3); }
  .trust-strip__item { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.08); padding: var(--s-2) 0; }
  .trust-strip__item:nth-last-child(-n+2) { border-bottom: 0; padding-bottom: 0; }
  .trust-strip__num { font-size: var(--fs-32); }
  .trust-strip__label { font-size: 10px; }

  /* ---- Stat cards ---- */
  .stats-grid { gap: var(--s-3); }
  .stat-card { padding: var(--s-5); }
  .stat-card__num { font-size: var(--fs-32); }

  /* ---- Category bento ---- */
  .cat-bento { gap: var(--s-3); }
  .cat-card { padding: var(--s-5); }
  .cat-card h3 { font-size: var(--fs-18); }
  .cat-card p { font-size: 13px; }
  .cat-card__icon { width: 44px; height: 44px; }

  /* ---- Process — büyük numaraları başlığa çakıştırma ---- */
  .process-step { padding: var(--s-6) var(--s-5); }
  .process-step__num { font-size: var(--fs-40); top: var(--s-5); right: var(--s-5); }
  .process-step__icon { width: 48px; height: 48px; margin-bottom: var(--s-4); }
  .process-step h3 { font-size: var(--fs-18); padding-right: 52px; }
  .process-step p { font-size: 13px; }

  /* ---- Why grid — visual kompakt, list sıkı ---- */
  .why-visual { max-width: 320px; margin: var(--s-5) auto 0; }
  .why-list { gap: var(--s-4); margin-top: var(--s-5); }
  .why-item { gap: var(--s-3); }
  .why-item__num { width: 36px; height: 36px; font-size: var(--fs-14); }
  .why-item strong { font-size: var(--fs-16); }
  .why-item p { font-size: 13px; }

  /* ---- Testimonial — büyük tırnak başlığa girmesin ---- */
  .testimonial { padding: var(--s-5); }
  .testimonial__quote { font-size: var(--fs-48); top: var(--s-3); right: var(--s-4); }
  .testimonial__stars { font-size: 13px; }
  .testimonial__text { font-size: var(--fs-14); margin-bottom: var(--s-4); }
  .testimonial__avatar { width: 38px; height: 38px; font-size: 13px; }

  /* ---- District pills/cards ---- */
  .district-pills { gap: 6px; }
  .district-pill { font-size: 13px; padding: 8px 14px; }
  .district-grid { gap: var(--s-3); }
  .district-card { padding: var(--s-5); }

  /* ---- Posts ---- */
  .post-grid { gap: var(--s-4); }
  .post-card__body { padding: var(--s-4); gap: 6px; }
  .post-card__title { font-size: var(--fs-16); }
  .post-card p { font-size: 13px; }

  /* ---- CTA banner — başlık kompakt, butonlar full width ---- */
  .cta-banner__inner { padding: var(--s-8) 0; gap: var(--s-5); }
  .cta-banner h2 { font-size: var(--fs-24); }
  .cta-banner p { font-size: var(--fs-14); }
  .cta-banner__buttons { width: 100%; flex-direction: column; }
  .cta-banner__buttons .btn { width: 100%; }

  /* ---- CTA strip ---- */
  .cta-strip { padding: var(--s-5); flex-direction: column; align-items: stretch; }
  .cta-strip > div:last-child { width: 100%; }
  .cta-strip > div:last-child .btn { flex: 1; }
  .cta-strip h3 { font-size: var(--fs-18); }

  /* ---- Product card ---- */
  .product-grid { grid-template-columns: 1fr; gap: var(--s-4); }
  .product-card__body { padding: var(--s-4); }
  .product-card__title { font-size: 15px; }
  .product-card__excerpt { font-size: 13px; }
  .product-card__footer { margin-top: var(--s-3); padding-top: var(--s-3); }

  /* ---- Cat chip row — kaydırma daha rahat ---- */
  .cat-chip { padding: 8px 14px; font-size: 13px; }
  .product-group { margin-bottom: var(--s-9); }
  .product-group__head h2 { font-size: var(--fs-20); }
  .product-group__intro { font-size: 13px; margin-bottom: var(--s-4); }

  /* ---- Product detail ---- */
  .product-detail__grid { gap: var(--s-6); }
  .product-detail__media { padding: var(--s-5); border-radius: var(--r-lg); }
  .product-detail__body h1 { font-size: var(--fs-24); }
  .product-detail__short { font-size: var(--fs-16); }
  .product-detail__cta { gap: var(--s-2); flex-direction: column; }
  .product-detail__cta .btn { width: 100%; }
  .feature-list { grid-template-columns: 1fr; gap: 6px; }
  .product-detail__benefits { grid-template-columns: 1fr; gap: var(--s-2); }
  .pdb { padding: var(--s-3); }
  .product-content { gap: var(--s-6); }
  .info-card { position: static; padding: var(--s-5); }
  .info-card .btn { font-size: 14px; }

  /* ---- Product tabs ---- */
  .product-tabs { gap: 0; }
  .product-tab { padding: var(--s-3) var(--s-4); font-size: 13px; }

  /* ---- Spec table ---- */
  .spec-table { font-size: 13px; }
  .spec-table th, .spec-table td { padding: var(--s-2) var(--s-3); }
  .spec-table th { width: 45%; }

  /* ---- FAQ ---- */
  .faq__item summary { padding: var(--s-4) var(--s-5); padding-right: 52px; font-size: var(--fs-14); }
  .faq__item summary::after { right: var(--s-4); width: 24px; height: 24px; font-size: var(--fs-16); }
  .faq__answer { padding: 0 var(--s-5) var(--s-4); font-size: 13px; }

  /* ---- Page head ---- */
  .page-head { margin-bottom: var(--s-6); }
  .page-head h1 { margin-bottom: var(--s-3); }
  .page-head .lede { font-size: var(--fs-16); }

  /* ---- Contact ---- */
  .contact-grid { gap: var(--s-7); }
  .contact-cards { grid-template-columns: 1fr; gap: var(--s-2); }
  .contact-form-card { padding: var(--s-5); }
  .contact-form-card label { font-size: 13px; }

  /* ---- Blog article ---- */
  .blog-article__head { margin-bottom: var(--s-7); }
  .blog-article__head h1 { font-size: var(--fs-28); }
  .blog-article__excerpt { font-size: var(--fs-16); }
  .blog-article h2 { font-size: var(--fs-20); margin-top: var(--s-7); }
  .blog-article p { font-size: var(--fs-15, .9375rem); }

  /* ---- Footer ---- */
  .site-footer { padding-top: var(--s-9); margin-top: var(--s-9); }
  .footer-grid { gap: var(--s-6); }
  .footer-bottom { margin-top: var(--s-7); padding: var(--s-4) 0; }
  .footer-bottom__row { gap: var(--s-2); font-size: 11px; }

  /* ---- Mobile bar ---- */
  .mobile-bar { bottom: 8px; left: 8px; right: 8px; padding: 5px; }
  .mobile-bar__item { padding: var(--s-2) 2px; font-size: 10px; }
  .mobile-bar__item svg { width: 20px; height: 20px; }
  .mobile-bar__item--wa svg { width: 22px; height: 22px; }

  body { padding-bottom: 80px; }

  /* ---- Breadcrumb ---- */
  .breadcrumb { font-size: 12px; padding: var(--s-3) 0 0; }
}

/* ==========================================================================
   31. ÇOK KÜÇÜK EKRANLAR ≤ 380px (iPhone SE / küçük Android)
   ========================================================================== */
@media (max-width: 380px) {
  .container { padding: 0 var(--s-3); }
  .top-bar { font-size: 10px; }
  .top-bar__row { padding: 5px var(--s-3); }
  .badge--brand { font-size: 9px; padding: 2px 7px; letter-spacing: 0; }
  .brand__sub { display: none; }
  .brand__title { font-size: .92rem; }
  .hero h1 { font-size: 1.55rem; }
  .hero__chip { font-size: 10px; }
  .hero__visual { max-width: 280px; }
  .hero__pill { display: none; }  /* en küçük ekranlarda gizle, taşmasın */
  .trust-strip__num { font-size: var(--fs-28); }
  .trust-strip__label { font-size: 9px; }
  .stat-card__num { font-size: var(--fs-28); }
  .section-title, .section-head h2 { font-size: var(--fs-24); }
  .product-detail__benefits { grid-template-columns: 1fr; }
  .mobile-bar__item span { font-size: 9px; }
}

/* (32) iOS scroll-lock kuralı yukarıda @media (max-width: 1023px) içinde — desktop'a yan etki bırakmamak için scoped. */