/* ============================================================
   MAKRO DEFENSE — Tasarım sistemi
   Varsayılan tema: koyu. Açık tema: html[data-theme="light"].
   Marka: mavi #2d7dd2 · teal #3db89a
   ============================================================ */
@import url("https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900&display=swap");

:root {
  /* marka */
  --blue: #4d8df5;
  --blue-deep: #2f6fd0;
  --teal: #2fd6bb;

  /* metin */
  --ink: #f2f5f9;
  --ink2: #c3ccd9;
  --muted: #8b95a6;

  /* yüzeyler */
  --bg: #07090d;
  --bg-alt: #0a0e15;
  --surface: #111620;
  --surface-muted: #0d1119;
  --surface-elevated: #161c28;
  --white: #111620;

  /* çizgiler */
  --line: rgba(148, 163, 184, 0.14);
  --line2: rgba(148, 163, 184, 0.26);
  --grid-line: rgba(148, 163, 184, 0.06);

  /* başlık */
  --nav-bg: rgba(7, 9, 13, 0.78);
  --nav-border: rgba(148, 163, 184, 0.12);
  --nav-shadow: none;

  /* gölge */
  --sh-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --sh-md: 0 12px 28px rgba(0, 0, 0, 0.45);
  --sh-lg: 0 30px 70px rgba(0, 0, 0, 0.55);
  --glow: 0 10px 30px rgba(77, 141, 245, 0.28);

  /* kategori + erişim seviyeleri */
  --cat-coatings: #2fd6bb;
  --cat-coatings-soft: rgba(47, 214, 187, 0.12);
  --cat-superalloys: #7fb4ff;
  --cat-superalloys-soft: rgba(91, 155, 245, 0.14);
  --tier-public: #34d399;
  --tier-public-soft: rgba(52, 211, 153, 0.14);
  --tier-gated: #fbbf24;
  --tier-gated-soft: rgba(251, 191, 36, 0.14);
  --tier-locked: #f87171;
  --tier-locked-soft: rgba(248, 113, 113, 0.14);

  /* geriye dönük isimler */
  --dark: #07090d;
  --dark2: #0a0e15;
  --dark3: #161c28;
  color-scheme: dark;
}

html[data-theme="light"] {
  --blue: #1e6bb8;
  --blue-deep: #17558f;
  --teal: #1d8878;

  --ink: #0f172a;
  --ink2: #334155;
  --muted: #64748b;

  --bg: #f4f6f9;
  --bg-alt: #ffffff;
  --surface: #ffffff;
  --surface-muted: #eef1f5;
  --surface-elevated: #f8fafc;
  --white: #ffffff;

  --line: #e2e8f0;
  --line2: #cbd5e1;
  --grid-line: rgba(15, 23, 42, 0.05);

  --nav-bg: rgba(255, 255, 255, 0.86);
  --nav-border: rgba(15, 23, 42, 0.08);
  --nav-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);

  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(15, 23, 42, 0.06);
  --sh-md: 0 4px 14px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
  --sh-lg: 0 18px 40px rgba(15, 23, 42, 0.12);
  --glow: 0 10px 26px rgba(30, 107, 184, 0.22);

  --cat-coatings: #0f8a7c;
  --cat-coatings-soft: rgba(15, 138, 124, 0.1);
  --cat-superalloys: #1e6bb8;
  --cat-superalloys-soft: rgba(30, 107, 184, 0.1);
  --tier-public: #0f8a5f;
  --tier-public-soft: rgba(16, 150, 96, 0.1);
  --tier-gated: #b7791f;
  --tier-gated-soft: rgba(214, 158, 46, 0.14);
  --tier-locked: #c53030;
  --tier-locked-soft: rgba(229, 62, 62, 0.1);

  --dark: #f4f6f9;
  --dark2: #eef1f5;
  --dark3: #e2e8f0;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
::selection { background: rgba(77, 141, 245, 0.3); }

code {
  font-size: .85em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid var(--line);
  color: var(--teal);
  padding: 2px 6px;
  border-radius: 5px;
}
html[data-theme="light"] code { background: #f1f5f9; color: var(--blue-deep); }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.shell { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .shell { padding: 0 18px; } }

/* ─── BAŞLIK / NAVİGASYON ────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
}
.site-header .shell { max-width: 1240px; }

.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 68px; }
@media (min-width: 901px) { .nav-inner { min-height: 78px; } }
@media (max-width: 600px) { .nav-inner { min-height: 60px; } }

.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo { display: block; height: 38px; width: auto; max-width: none; }
@media (min-width: 901px) { .brand-logo { height: 42px; } }
@media (max-width: 600px) { .brand-logo { height: 30px; } }
.brand-logo { filter: brightness(0) invert(1); }
html[data-theme="light"] .brand-logo { filter: none; }

nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 2px; align-items: center; }
nav a {
  display: block;
  font-size: .82rem; font-weight: 600; letter-spacing: .01em;
  color: var(--ink2);
  padding: 8px 12px; border-radius: 8px;
  transition: color .15s, background .15s;
}
nav a:hover { color: var(--ink); background: rgba(148, 163, 184, 0.1); }
nav a[aria-current="page"] { color: var(--ink); background: rgba(77, 141, 245, 0.16); }
.nav-cta { color: var(--teal) !important; font-weight: 700 !important; }

.nav-utils { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.lang-switch { display: flex; gap: 4px; align-items: center; flex-shrink: 0; }
.lang-switch a {
  font-size: .7rem; font-weight: 700; letter-spacing: .06em;
  padding: 6px 9px; border-radius: 7px;
  border: 1px solid var(--line2); color: var(--muted); background: transparent;
  transition: all .15s;
}
.lang-switch a:hover { color: var(--ink); border-color: var(--muted); }
.lang-switch a.is-active { color: var(--ink); border-color: rgba(77, 141, 245, .5); background: rgba(77, 141, 245, .14); }

.theme-toggle,
.nav-account,
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  height: 34px; border-radius: 9px;
  border: 1px solid var(--line2); background: transparent;
  color: var(--ink2); cursor: pointer;
  font: 700 .76rem Inter, sans-serif;
  transition: color .15s, border-color .15s, background .15s;
  flex-shrink: 0;
}
.theme-toggle { width: 34px; font-size: .95rem; }
.theme-toggle:hover, .nav-toggle:hover { color: var(--ink); border-color: var(--blue); }

.nav-account { gap: 7px; padding: 0 12px; white-space: nowrap; }
.nav-account svg { width: 15px; height: 15px; }
a.nav-account:hover { color: var(--ink); border-color: var(--blue); background: rgba(77, 141, 245, .12); }
.nav-account--in { color: var(--ink); padding-right: 4px; }
.nav-account--in .nav-account-text { max-width: 140px; overflow: hidden; text-overflow: ellipsis; }
.nav-account-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--tier-public); box-shadow: 0 0 0 3px rgba(52, 211, 153, .16); flex-shrink: 0; }
.nav-account-out {
  display: inline-flex; align-items: center; gap: 5px;
  border: none; background: rgba(148, 163, 184, 0.14); color: var(--muted);
  font: 700 .7rem Inter, sans-serif; padding: 6px 9px; border-radius: 7px; cursor: pointer;
}
.nav-account-out svg { width: 12px; height: 12px; }
.nav-account-out:hover { color: var(--ink); }

.nav-toggle { display: none; gap: 6px; padding: 0 12px; }
.mobile-nav { display: none; background: var(--surface); border-top: 1px solid var(--line); padding: 8px 0 14px; }
.mobile-nav.is-open { display: block; }
.mobile-nav ul { flex-direction: column; gap: 0; }
.mobile-nav a { padding: 12px 14px; border-radius: 8px; color: var(--ink2); width: 100%; }

@media (max-width: 900px) {
  .nav-inner > nav { display: none; }
  .nav-toggle { display: inline-flex; }
}
@media (max-width: 1240px) {
  .nav-account .nav-account-text { display: none; }
  .nav-account { padding: 0 10px; }
  .nav-account--in { padding: 0 4px 0 10px; gap: 8px; }
}
@media (min-width: 901px) and (max-width: 1240px) {
  .nav-inner { gap: 10px; }
  .site-header nav a { padding: 8px 9px; }
}
@media (max-width: 600px) {
  .nav-utils { gap: 6px; }
  .lang-switch a { padding: 5px 7px; }
  .nav-toggle { padding: 0 11px; font-size: 1rem; }
  .nav-toggle-text, .nav-account-out-text { display: none; }
  .nav-account-out { padding: 7px; }
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero-section {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.slider-track { position: absolute; inset: 0; z-index: 0; }
.slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1.2s cubic-bezier(.4, 0, .2, 1);
}
.slide.is-active { opacity: 1; }
.slide img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 60% center; }
.slide::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, #07090d 0%, rgba(7, 9, 13, .96) 38%, rgba(7, 9, 13, .68) 62%, rgba(7, 9, 13, .34) 100%),
    linear-gradient(0deg, #07090d 1%, transparent 42%);
}
html[data-theme="light"] .slide::after {
  background:
    linear-gradient(100deg, rgba(7, 9, 13, .96) 0%, rgba(7, 9, 13, .86) 34%, rgba(7, 9, 13, .5) 62%, rgba(7, 9, 13, .3) 100%);
}

.hero-inner {
  position: relative; z-index: 2;
  max-width: 660px;
  padding: clamp(64px, 9vw, 120px) 0 clamp(56px, 8vw, 104px);
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .74rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}
.hero-eyebrow::before { content: ""; width: 30px; height: 2px; background: currentColor; border-radius: 2px; }

.hero-title {
  font-size: clamp(2.1rem, 5.2vw, 3.5rem);
  font-weight: 800; line-height: 1.08; letter-spacing: -.035em;
  color: #fff;
  margin: 0 0 20px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(92deg, #7fb4ff 10%, var(--teal) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.7; color: #b9c3d2; margin: 0 0 32px; max-width: 54ch;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-slider--banners { --hero-min: clamp(460px, 62vh, 660px); }
.hero-slider--banners .hero-body { min-height: var(--hero-min); display: flex; align-items: center; }

/* oklar metnin üstüne binmesin: sağ altta kümelenir */
.slider-arrow {
  position: absolute; bottom: 74px;
  z-index: 3; width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .2);
  color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px); transition: background .2s;
}
.slider-arrow:hover { background: rgba(255, 255, 255, .18); }
.slider-arrow svg { width: 19px; height: 19px; stroke: #fff; fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.slider-prev { right: 74px; }
.slider-next { right: 22px; }
@media (max-width: 900px) { .slider-arrow { display: none; } }

.slider-dots { position: absolute; bottom: 93px; right: 134px; z-index: 3; display: flex; gap: 8px; }
@media (max-width: 900px) { .slider-dots { display: none; } }
.slider-dot {
  width: 26px; height: 4px; border-radius: 2px; padding: 0; border: none; cursor: pointer;
  background: rgba(255, 255, 255, .28); transition: background .25s, width .25s;
}
.slider-dot.is-active { background: var(--teal); width: 40px; }
.slider-progress {
  position: absolute; bottom: 44px; left: 0; height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--blue), var(--teal)); z-index: 3;
  transition: width linear;
}

/* hero gövdesi + split içerik yardımcıları */
.hero-body { position: relative; z-index: 2; }
.section-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.split-title { font-size: 1.3rem; font-weight: 800; letter-spacing: -.02em; color: var(--ink); margin: 0 0 12px; }
.split-text { color: var(--muted); margin: 0 0 20px; line-height: 1.75; }
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.feature-list li { position: relative; padding-left: 28px; color: var(--ink2); font-size: .94rem; }
.feature-list li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 12px; height: 7px;
  border-left: 2px solid var(--teal); border-bottom: 2px solid var(--teal);
  transform: rotate(-45deg);
}
#home-products-preview { margin-top: 32px; }

/* ─── BUTONLAR ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; padding: 13px 24px;
  font: 700 .92rem Inter, sans-serif; letter-spacing: .005em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s, filter .15s, background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .65; cursor: default; }
.btn-sm { padding: 9px 15px; font-size: .82rem; border-radius: 9px; }
.btn-block { width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: #fff; border-color: rgba(255, 255, 255, .12);
  box-shadow: var(--glow);
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-outline { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .28); color: #fff; backdrop-filter: blur(6px); }
.btn-outline:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .5); }
.btn-outline--on-light, .btn-outline--dark {
  background: transparent; border-color: var(--line2); color: var(--ink); backdrop-filter: none;
}
.btn-outline--on-light:hover, .btn-outline--dark:hover { border-color: var(--blue); color: var(--blue); background: rgba(77, 141, 245, .1); }

.btn-ghost { background: var(--surface-elevated); color: var(--ink); border-color: var(--line2); }
.btn-ghost:hover { border-color: var(--blue); color: var(--ink); }

.btn-spinner {
  display: none; width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent; animation: btn-spin .7s linear infinite;
}
.btn.is-busy .btn-spinner { display: inline-block; }
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* ─── BÖLÜMLER ───────────────────────────────────────────────── */
.section { padding: clamp(64px, 8vw, 104px) 0; }
.section-alt { background: var(--bg-alt); }
.section-muted { background: var(--surface-muted); color: var(--ink); }

.section-hd { margin: 0 0 44px; max-width: 70ch; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .72rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; border-radius: 2px; }
.section-hd h2 {
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  font-weight: 800; letter-spacing: -.03em; line-height: 1.18;
  margin: 0 0 12px; color: var(--ink);
}
.section-hd p { color: var(--muted); margin: 0; font-size: 1.02rem; line-height: 1.7; }

/* ─── KARTLAR ────────────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 960px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 26px;
  box-shadow: var(--sh-sm);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.card::before {
  content: ""; position: absolute; left: 26px; right: 26px; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  border-radius: 0 0 2px 2px; opacity: 0; transition: opacity .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--sh-md); border-color: var(--line2); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 1.06rem; font-weight: 700; letter-spacing: -.01em; margin: 0 0 10px; color: var(--ink); }
.card p { font-size: .94rem; color: var(--muted); margin: 0; line-height: 1.7; }

.card-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(77, 141, 245, .12); border: 1px solid rgba(77, 141, 245, .2);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.card-icon svg { width: 22px; height: 22px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: 24px; } }

/* ─── İSTATİSTİK ŞERİDİ ──────────────────────────────────────── */
.band-stats { padding: 0; background: transparent; }
.stats-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  background: var(--surface); box-shadow: var(--sh-md);
  margin-top: -44px; position: relative; z-index: 3;
}
.stat-item { padding: 26px 24px; border-right: 1px solid var(--line); }
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 1.5rem; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }
.stat-num em { font-style: normal; color: var(--teal); }
.stat-lbl { font-size: .84rem; color: var(--muted); margin-top: 4px; }
@media (max-width: 860px) {
  .stats-strip { grid-template-columns: 1fr 1fr; margin-top: -32px; }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 480px) {
  .stats-strip { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--line); }
  .stat-item:last-child { border-bottom: none; }
}

/* ─── SAYFA BAŞLIĞI ──────────────────────────────────────────── */
.page-hero {
  position: relative; overflow: hidden;
  padding: clamp(48px, 7vw, 76px) 0 clamp(40px, 5vw, 56px);
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: linear-gradient(95deg, transparent, #000 65%);
  mask-image: linear-gradient(95deg, transparent, #000 65%);
}
.page-hero .shell { position: relative; }
.page-hero h1 {
  font-size: clamp(1.9rem, 3.6vw, 2.6rem);
  font-weight: 800; letter-spacing: -.035em; color: var(--ink); margin: 0 0 12px;
}
.page-hero p { color: var(--muted); margin: 0; font-size: 1.04rem; max-width: 62ch; }

/* ─── ÜRÜN KATALOĞU ──────────────────────────────────────────── */
.catalog-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 30px; }
@media (max-width: 720px) { .catalog-cats { grid-template-columns: 1fr; } }

.cat-tile {
  position: relative; overflow: hidden;
  display: flex; align-items: center; gap: 18px;
  padding: 24px 26px; border-radius: 16px;
  border: 1px solid var(--line); background: var(--surface);
  box-shadow: var(--sh-sm);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.cat-tile::after {
  content: ""; position: absolute; right: -50px; top: -50px; width: 180px; height: 180px;
  border-radius: 50%; background: var(--cat-soft); pointer-events: none;
}
.cat-tile--coatings { --cat: var(--cat-coatings); --cat-soft: var(--cat-coatings-soft); }
.cat-tile--superalloys { --cat: var(--cat-superalloys); --cat-soft: var(--cat-superalloys-soft); }
.cat-tile:hover { border-color: var(--cat); box-shadow: var(--sh-md); transform: translateY(-2px); }
.cat-icon {
  width: 54px; height: 54px; flex-shrink: 0; border-radius: 14px;
  display: grid; place-items: center; background: var(--cat-soft); color: var(--cat);
  border: 1px solid color-mix(in srgb, var(--cat) 25%, transparent);
}
.cat-icon svg { width: 26px; height: 26px; }
.cat-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; position: relative; z-index: 1; }
.cat-name { font-size: 1.1rem; font-weight: 800; letter-spacing: -.015em; color: var(--ink); }
.cat-desc { font-size: .87rem; color: var(--muted); line-height: 1.55; }
.cat-count {
  margin-left: auto; flex-shrink: 0; position: relative; z-index: 1;
  font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--cat);
}

.catalog-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px;
  padding: 14px; margin-bottom: 20px;
  border-radius: 14px; border: 1px solid var(--line); background: var(--surface-elevated);
  scroll-margin-top: 110px;
}
.catalog-toolbar:empty { display: none; }
.catalog-search { position: relative; flex: 1 1 280px; max-width: 420px; margin: 0; }
.catalog-search svg { position: absolute; left: 14px; top: 50%; width: 17px; height: 17px; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.catalog-search input { padding-left: 42px; }
.catalog-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 14px; border-radius: 999px;
  border: 1px solid var(--line2); background: transparent; color: var(--ink2);
  font: 600 .8rem Inter, sans-serif; cursor: pointer; transition: all .15s;
}
.chip span { font-size: .72rem; font-weight: 700; color: var(--muted); }
.chip:hover { border-color: var(--blue); color: var(--ink); }
.chip.is-active { background: var(--blue); border-color: var(--blue); color: #fff; }
.chip.is-active span { color: inherit; opacity: .75; }
.catalog-count { margin-left: auto; font-size: .82rem; font-weight: 600; color: var(--muted); }

.tier-legend {
  list-style: none; margin: 0 0 36px; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: .82rem; color: var(--muted);
}
.tier-legend li { display: flex; align-items: center; gap: 8px; }

.tier-chip {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: .7rem; font-weight: 700; white-space: nowrap;
  padding: 4px 10px; border-radius: 999px;
}
.tier-chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.tier-chip svg { width: 11px; height: 11px; }
.tier-chip--locked::before { display: none; }
.tier-chip--public { color: var(--tier-public); background: var(--tier-public-soft); }
.tier-chip--gated { color: var(--tier-gated); background: var(--tier-gated-soft); }
.tier-chip--locked { color: var(--tier-locked); background: var(--tier-locked-soft); }

.product-group { margin-bottom: 48px; scroll-margin-top: 110px; }
.product-group:last-of-type { margin-bottom: 0; }
.product-group-title {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.12rem; font-weight: 800; letter-spacing: -.015em; color: var(--ink);
  margin: 0 0 20px; padding-bottom: 14px; border-bottom: 1px solid var(--line);
}
.product-group-count { font-size: .72rem; font-weight: 700; color: var(--muted); background: rgba(148, 163, 184, .14); padding: 3px 9px; border-radius: 999px; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 960px) { .product-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .product-grid { grid-template-columns: 1fr; } }

.product-card {
  --cat: var(--cat-superalloys); --cat-soft: var(--cat-superalloys-soft);
  position: relative; display: flex; flex-direction: column;
  padding: 24px 24px 20px; border-radius: 16px;
  border: 1px solid var(--line); background: var(--surface); box-shadow: var(--sh-sm);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.product-card--coatings { --cat: var(--cat-coatings); --cat-soft: var(--cat-coatings-soft); }
.product-card::before {
  content: ""; position: absolute; left: 24px; right: 24px; top: 0; height: 2px;
  border-radius: 0 0 2px 2px; background: var(--cat); opacity: 0; transition: opacity .2s;
}
.product-card:hover { border-color: var(--line2); box-shadow: var(--sh-md); transform: translateY(-3px); }
.product-card:hover::before { opacity: 1; }
.product-card:focus-within { border-color: var(--blue); }

.pc-top { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.pc-icon { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--cat-soft); color: var(--cat); }
.pc-icon svg { width: 19px; height: 19px; }
.pc-cat { font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.pc-title { margin: 0 0 10px; font-size: 1.08rem; font-weight: 700; letter-spacing: -.015em; line-height: 1.35; }
.pc-link { color: var(--ink); }
.pc-link:focus { outline: none; }
.pc-link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.pc-summary {
  margin: 0 0 20px; font-size: .9rem; line-height: 1.65; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.pc-foot { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.pc-more { font-size: .8rem; font-weight: 700; color: var(--cat); transition: transform .2s; }
.product-card:hover .pc-more { transform: translateX(3px); }

.catalog-empty { text-align: center; padding: 52px 20px; margin: 0; border: 1px dashed var(--line2); border-radius: 16px; color: var(--muted); }

/* ─── GİRİŞ SAYFASI ──────────────────────────────────────────── */
.auth-page { padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 8vw, 96px); }
.auth-shell {
  display: grid; grid-template-columns: 1.05fr .95fr;
  max-width: 1000px; margin: 0 auto;
  border-radius: 22px; overflow: hidden;
  border: 1px solid var(--line); background: var(--surface); box-shadow: var(--sh-lg);
}
@media (max-width: 860px) { .auth-shell { grid-template-columns: 1fr; } }

.auth-side {
  position: relative; overflow: hidden; padding: 50px 46px; color: #e6edf7;
  background:
    radial-gradient(440px 320px at 100% 0%, rgba(47, 214, 187, .2), transparent 70%),
    radial-gradient(400px 320px at 0% 100%, rgba(77, 141, 245, .22), transparent 70%),
    #0a0e15;
}
.auth-side::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .08) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 88%);
  mask-image: linear-gradient(180deg, #000, transparent 88%);
}
.auth-side > * { position: relative; }
.auth-kicker { display: inline-flex; align-items: center; gap: 10px; font-size: .72rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--teal); }
.auth-kicker::before { content: ""; width: 24px; height: 2px; background: currentColor; border-radius: 2px; }
.auth-side h1 { font-size: clamp(1.5rem, 2.6vw, 1.95rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.2; margin: 18px 0 14px; color: #fff; }
.auth-lead { color: #aab5c6; margin: 0 0 32px; font-size: .96rem; }
.auth-points { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.auth-points li { display: flex; gap: 14px; align-items: flex-start; }
.auth-points strong { display: block; color: #fff; font-size: .93rem; margin-bottom: 3px; }
.auth-points span { font-size: .85rem; color: #93a0b4; line-height: 1.55; }
.auth-point-icon {
  width: 38px; height: 38px; flex-shrink: 0; border-radius: 11px; display: grid; place-items: center;
  background: rgba(77, 141, 245, .16); border: 1px solid rgba(77, 141, 245, .28); color: #8fbcff;
}
.auth-point-icon svg { width: 18px; height: 18px; }

.auth-card { padding: 50px 46px; display: flex; flex-direction: column; }
@media (max-width: 600px) { .auth-side, .auth-card { padding: 34px 22px; } }
.auth-card h2 { font-size: 1.5rem; font-weight: 800; letter-spacing: -.025em; margin: 0 0 8px; color: var(--ink); }
.auth-sub { color: var(--muted); margin: 0 0 28px; font-size: .93rem; }
.auth-form { display: grid; gap: 18px; }
.auth-signed p { margin: 0 0 18px; color: var(--ink2); }
.auth-signed-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.auth-foot { margin: auto 0 0; padding-top: 28px; font-size: .85rem; color: var(--muted); }
.auth-foot a { color: var(--blue); font-weight: 600; }

/* ─── FORMLAR ────────────────────────────────────────────────── */
.form { display: grid; gap: 18px; }
label { display: block; font-size: .82rem; font-weight: 600; color: var(--ink2); margin-bottom: 7px; }

input, textarea, select {
  width: 100%; font: inherit; font-size: .94rem;
  padding: 12px 15px; border-radius: 10px;
  border: 1px solid var(--line2); background: var(--surface-elevated); color: var(--ink);
  outline: none; transition: border-color .15s, box-shadow .15s, background .15s;
}
html[data-theme="light"] input,
html[data-theme="light"] textarea,
html[data-theme="light"] select { background: #fff; }
input::placeholder, textarea::placeholder { color: var(--muted); }
input:focus, textarea:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(77, 141, 245, .18); }
textarea { min-height: 150px; resize: vertical; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 38px; box-shadow: var(--sh-md); }
@media (max-width: 600px) { .form-card { padding: 24px 18px; } }

.field label { margin-bottom: 7px; }
.pw-field { position: relative; }
.pw-field input { padding-right: 80px; }
.pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  border: none; background: rgba(148, 163, 184, .16); color: var(--ink2);
  font: 700 .72rem Inter, sans-serif; padding: 7px 11px; border-radius: 7px; cursor: pointer;
}
.pw-toggle:hover { color: var(--blue); }
.caps-hint { margin: 7px 0 0; font-size: .77rem; font-weight: 600; color: var(--tier-gated); }
.form-alert {
  margin-bottom: 18px; padding: 12px 15px; border-radius: 11px; font-size: .87rem;
  color: var(--tier-locked); background: var(--tier-locked-soft); border: 1px solid color-mix(in srgb, var(--tier-locked) 35%, transparent);
}

/* ─── İLETİŞİM ───────────────────────────────────────────────── */
.contact-quick { display: flex; flex-direction: column; gap: 14px; }
.contact-item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 18px; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--sh-sm);
}
.contact-item-icon {
  width: 42px; height: 42px; flex-shrink: 0; border-radius: 11px;
  background: rgba(77, 141, 245, .12); border: 1px solid rgba(77, 141, 245, .2);
  display: flex; align-items: center; justify-content: center;
}
.contact-item-icon svg { width: 18px; height: 18px; stroke: var(--blue); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.contact-item-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); margin-bottom: 3px; }
.contact-item-val { font-weight: 600; color: var(--ink); }
.contact-item-val a { color: var(--blue); }

.map iframe { width: 100%; height: 340px; border: 0; border-radius: 16px; display: block; filter: grayscale(.2); }
.map-placeholder {
  height: 220px; border-radius: 16px;
  background: var(--surface-muted); border: 1px dashed var(--line2);
  display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: .92rem;
}

/* ─── TESİS / SÜREÇ ──────────────────────────────────────────── */
.process-showcase { padding-top: clamp(56px, 7vw, 88px); }
.process-icon-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
@media (max-width: 900px) { .process-icon-strip { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .process-icon-strip { grid-template-columns: 1fr; } }

.process-icon-item {
  text-align: center; padding: 24px 18px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--sh-sm);
}
.process-icon-item strong { display: block; color: var(--ink); font-size: .95rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -.01em; }
.process-icon-item span { display: block; font-size: .84rem; line-height: 1.6; color: var(--muted); }
.process-icon-circle {
  width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(47, 214, 187, .1); border: 1px solid rgba(47, 214, 187, .22);
}
.process-icon-circle svg { width: 24px; height: 24px; stroke: var(--teal); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.process-disclaimer { text-align: center; max-width: 58ch; margin: 0 auto 32px; font-size: .9rem; line-height: 1.7; color: var(--muted); }
.process-banner { border-radius: 18px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--sh-md); }
.process-banner img { width: 100%; display: block; }

.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: 220px 220px; gap: 14px; }
.photo-grid .pg-item { border-radius: 14px; overflow: hidden; position: relative; border: 1px solid var(--line); }
.photo-grid .pg-item:first-child { grid-column: span 2; grid-row: span 2; }
.photo-grid .pg-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.4, 0, .2, 1); }
.photo-grid .pg-item:hover img { transform: scale(1.04); }
@media (max-width: 700px) {
  .photo-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .photo-grid .pg-item:first-child { grid-column: span 2; grid-row: span 1; height: 220px; }
  .photo-grid .pg-item { height: 160px; }
}

.about-visual {
  border-radius: 18px; overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--surface) 0%, var(--surface-muted) 100%);
  display: flex; align-items: center; justify-content: center; box-shadow: var(--sh-md);
}
.about-visual img { width: 100%; height: clamp(280px, 42vw, 400px); object-fit: contain; padding: 20px; }

/* ürün fotoğrafı: koyu zeminde beyaz kart içinde sunulur */
.shot-card { border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background: #fff; box-shadow: var(--sh-md); }
.shot-card img { width: 100%; display: block; }

/* ─── REFERANSLAR ────────────────────────────────────────────── */
.references-section { padding-bottom: clamp(64px, 8vw, 96px); }
.references-hint { color: var(--muted); font-size: .94rem; max-width: 60ch; }
.references-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.references-grid--three { grid-template-columns: repeat(3, 1fr); max-width: 940px; margin-inline: auto; }
@media (max-width: 900px) { .references-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .references-grid--three { grid-template-columns: 1fr; max-width: 380px; } }

.ref-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 26px 20px; display: flex; align-items: center; justify-content: center;
  min-height: 130px; box-shadow: var(--sh-sm); transition: border-color .2s, transform .2s;
}
.ref-card:hover { border-color: var(--line2); transform: translateY(-2px); }
.ref-logo-slot {
  width: 100%; max-width: 190px; min-height: 64px;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border-radius: 10px; padding: 12px 16px;
}
.ref-logo-slot img { max-width: 100%; max-height: 90px; object-fit: contain; }
.ref-name { font-size: .88rem; font-weight: 600; color: var(--ink); text-align: center; }

/* ─── CTA BANDI ──────────────────────────────────────────────── */
.cta-band { position: relative; overflow: hidden; border-top: 1px solid var(--line); }
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60vw 50vh at 20% 0%, rgba(77, 141, 245, .16), transparent 65%),
    radial-gradient(50vw 50vh at 85% 100%, rgba(47, 214, 187, .14), transparent 65%);
}
.cta-band .shell { position: relative; text-align: center; max-width: 760px; }
.cta-band h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); font-weight: 800; letter-spacing: -.03em; margin: 12px 0 14px; color: var(--ink); }
.cta-band p { color: var(--muted); margin: 0 0 30px; font-size: 1.04rem; }
.cta-band .hero-ctas { justify-content: center; }

/* ─── METİN / YASAL ──────────────────────────────────────────── */
.prose { color: var(--ink2); line-height: 1.8; max-width: 75ch; }
.prose h2, .prose h3 { color: var(--ink); font-weight: 700; margin-top: 32px; letter-spacing: -.02em; }
.prose p { margin: 0 0 16px; }
.legal { max-width: 840px; }
.legal h1 { font-size: clamp(1.6rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.03em; margin: 0 0 10px; }
.note { font-size: .86rem; color: var(--muted); }

/* ─── ALT BİLGİ ──────────────────────────────────────────────── */
.site-footer { background: var(--surface-muted); color: var(--muted); font-size: .9rem; border-top: 1px solid var(--line); }
.footer-top { padding: 56px 0 44px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-logo { display: block; height: 38px; width: auto; max-width: min(340px, 100%); margin-bottom: 18px; filter: brightness(0) invert(1); }
html[data-theme="light"] .footer-logo { filter: none; }
@media (max-width: 600px) { .footer-logo { height: 32px; } }
.footer-desc { font-size: .9rem; color: var(--muted); line-height: 1.7; max-width: 34ch; }
.footer-col-title { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--muted); transition: color .15s; }
.footer-links a:hover { color: var(--teal); }

.footer-bottom {
  border-top: 1px solid var(--line); padding: 18px 0;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px;
}
.footer-bottom span { color: var(--muted); font-size: .84rem; }
.footer-bottom__muted { color: var(--muted) !important; }
.footer-bottom__muted:hover { color: var(--teal) !important; }

/* ─── TOAST / ÇEŞİTLİ ────────────────────────────────────────── */
.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 99;
  padding: 15px 19px; border-radius: 12px;
  background: var(--surface-elevated); color: var(--ink);
  border: 1px solid var(--line2); box-shadow: var(--sh-lg);
  display: none; font-size: .9rem; max-width: 340px;
}
.toast.is-on { display: block; }

a.is-disabled { pointer-events: none; opacity: .35; }
.badge {
  display: inline-block; font-size: .72rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
  background: rgba(77, 141, 245, .14); color: var(--blue);
}
.divider { border: none; border-top: 1px solid var(--line); margin: 0; }

/* ── Çerez onay bandı ──────────────────────────────────────── */
.consent {
  position: fixed; left: 50%; bottom: 18px; z-index: 120;
  transform: translate(-50%, 140%);
  width: min(880px, calc(100% - 32px));
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 16px 20px; border-radius: 16px;
  background: var(--surface-elevated); border: 1px solid var(--line2);
  box-shadow: var(--sh-lg);
  transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}
.consent.is-in { transform: translate(-50%, 0); }
.consent-text { margin: 0; flex: 1 1 320px; font-size: .9rem; line-height: 1.55; color: var(--ink2); }
.consent-text a { color: var(--blue); text-decoration: underline; text-underline-offset: 2px; }
.consent-actions { display: flex; gap: 10px; margin-left: auto; }
@media (max-width: 560px) {
  .consent { gap: 12px; padding: 14px 16px; }
  .consent-actions { width: 100%; }
  .consent-actions .btn { flex: 1; justify-content: center; }
}

/* Bot tuzağı: ekran okuyucu ve kullanıcı görmez, botlar doldurur. */
.hp-field {
  position: absolute !important; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* Dil seçici: metin yerine bayrak */
.lang-switch a {
  padding: 4px 5px; line-height: 0; border-color: transparent;
  opacity: .5; filter: saturate(.85);
}
.lang-switch a:hover { opacity: .85; border-color: var(--line2); }
.lang-switch a.is-active { opacity: 1; filter: none; border-color: rgba(77, 141, 245, .5); background: rgba(77, 141, 245, .12); }
.lang-switch .flag {
  width: 24px; height: 16px; display: block; border-radius: 3px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .18);
}
html[data-theme="light"] .lang-switch .flag { box-shadow: 0 0 0 1px rgba(15, 23, 42, .18); }

/* Hero videosu (site.json → hero.video) */
.hero-video {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: 60% center;
  opacity: 0; transition: opacity .8s ease;
}
.hero-section.has-video .hero-video { opacity: 1; }
.hero-section.has-video .slider-track,
.hero-section.has-video .slider-arrow,
.hero-section.has-video .slider-dots,
.hero-section.has-video .slider-progress { display: none; }
.hero-section.has-video::after {
  content: "";
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(100deg, #07090d 0%, rgba(7, 9, 13, .96) 38%, rgba(7, 9, 13, .68) 62%, rgba(7, 9, 13, .34) 100%),
    linear-gradient(0deg, #07090d 1%, transparent 42%);
}
html[data-theme="light"] .hero-section.has-video::after {
  background:
    linear-gradient(100deg, rgba(7, 9, 13, .96) 0%, rgba(7, 9, 13, .86) 34%, rgba(7, 9, 13, .5) 62%, rgba(7, 9, 13, .3) 100%);
}
.hero-section.has-video .hero-body { position: relative; z-index: 2; }