/* ============================================================
   ADC BİLGİSAYAR — Endüstriyel Tasarım Sistemi
   Palet   : çelik grisi zemin, grafit mürekkep, sinyal turuncusu
   Tipografi: Barlow Condensed (başlık) / Inter (metin) / IBM Plex Mono (kod)
   İmza    : barkod motifi + tarama çizgisi
   ============================================================ */

:root {
  --bg:      #F1F2F0;
  --panel:   #FFFFFF;
  --ink:     #14171C;
  --muted:   #5A6068;
  --line:    #D8DBD6;
  --accent:  #FF4D00;
  --accent-dark: #D64000;
  --deep:    #17222E;
  --deep-2:  #1E2C3B;
  --deep-line: #2C3D4F;

  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --container: 1200px;
  --radius: 2px;

  /* Barkod deseni: düzensiz dikey çizgiler */
  --barcode: repeating-linear-gradient(90deg,
      currentColor 0 2px,  transparent 2px 5px,
      currentColor 5px 6px, transparent 6px 11px,
      currentColor 11px 15px, transparent 15px 18px,
      currentColor 18px 19px, transparent 19px 26px,
      currentColor 26px 29px, transparent 29px 32px);
}

/* ---------- Sıfırlama ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 18px; z-index: 200;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Tipografi ölçeği ---------- */
h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0.012em;
  text-transform: uppercase;
}

/* Bölüm göz etiketi: mono + barkod tik */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent-dark);
}
.eyebrow::before {
  content: ""; width: 34px; height: 14px;
  background: var(--barcode); color: var(--accent);
}
.dark .eyebrow { color: var(--accent); }

/* ============================================================
   ÜST BAR
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(241, 242, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; gap: 36px;
  min-height: 72px;            /* slogan uzarsa header esner, içerik taşmaz */
  padding-top: 8px; padding-bottom: 8px;
}
.logo { display: flex; align-items: center; gap: 12px; min-width: 0; flex: 0 1 auto; }
.logo-barcode {
  width: 30px; height: 30px;
  background: var(--barcode); color: var(--ink);
  transition: color .25s;
}
.logo:hover .logo-barcode { color: var(--accent); }
.logo-text {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 700; letter-spacing: 0.02em;
}
.logo-text em { font-style: normal; font-weight: 500; color: var(--muted); margin-left: 4px; }
.logo-text--light { color: #fff; }
.logo-text--light em { color: #8FA0B2; }

.main-nav { display: flex; gap: 4px; margin-left: auto; }
.main-nav a {
  font-size: 14.5px; font-weight: 500; color: var(--muted);
  padding: 8px 14px; position: relative;
  transition: color .2s;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a.active { color: var(--ink); }
.main-nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
  height: 3px; background: var(--accent);
}

.header-phone { text-align: right; line-height: 1.25; }
.phone-label {
  display: block; font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent-dark);
}
.phone-num { font-family: var(--font-display); font-size: 20px; font-weight: 600; white-space: nowrap; }

.nav-toggle { display: none; background: none; border: 0; width: 42px; height: 42px; flex-direction: column; justify-content: center; gap: 5px; align-items: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); transition: transform .25s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: var(--deep);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero::after { /* zemine soluk ızgara */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 56px 56px;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px;
  align-items: center;
  padding: 88px 0 96px;
}
.hero h1 {
  font-size: clamp(46px, 6.4vw, 86px);
  color: #fff;
}
.hero h1 .vurgu { color: var(--accent); }
.hero-lead {
  margin-top: 22px; max-width: 52ch;
  color: #B8C2CC; font-size: 17px;
}

/* İmza: taranan barkod şeridi */
.hero-barcode {
  margin-top: 34px;
  width: min(420px, 100%); height: 44px;
  background: var(--barcode); color: rgba(255,255,255,.85);
  position: relative; overflow: hidden;
}
.hero-barcode::after {
  content: ""; position: absolute; top: -8px; bottom: -8px; width: 3px;
  background: var(--accent);
  box-shadow: 0 0 14px 3px rgba(255, 77, 0, .55);
  animation: scan 3.4s ease-in-out infinite;
}
@keyframes scan {
  0%, 100% { left: 2%; }
  50%      { left: 97%; }
}
.hero-code {
  margin-top: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .3em;
  color: #7E8EA0;
}

.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 17px;
  letter-spacing: .04em; text-transform: uppercase;
  padding: 13px 26px; border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background .2s, color .2s, border-color .2s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-ghost { border-color: #3A4B5E; color: #DCE4EC; }
.btn-ghost:hover { border-color: #fff; color: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-outline { border-color: var(--ink); color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; }

/* Hero görseli */
.hero-visual { display: flex; justify-content: center; }
.hero-visual svg { width: min(360px, 90%); height: auto; filter: drop-shadow(0 24px 40px rgba(0,0,0,.4)); }

/* Hero alt istatistik bandı */
.hero-stats {
  position: relative; z-index: 1;
  border-top: 1px solid var(--deep-line);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.hero-stat {
  padding: 22px 24px;
  border-right: 1px solid var(--deep-line);
}
.hero-stat:last-child { border-right: 0; }
.hero-stat b {
  display: block; font-family: var(--font-display);
  font-size: 34px; font-weight: 700; color: var(--accent);
}
.hero-stat span { font-size: 13px; color: #8FA0B2; }

/* ============================================================
   BÖLÜM DÜZENİ
   ============================================================ */
.section { padding: 88px 0; }
.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; margin-bottom: 44px; flex-wrap: wrap;
}
.section-head h2 { font-size: clamp(34px, 4vw, 52px); margin-top: 10px; }
.section-link {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .08em;
  color: var(--accent-dark); border-bottom: 1px solid currentColor;
  padding-bottom: 2px; white-space: nowrap;
}
.section-link:hover { color: var(--ink); }

.dark { background: var(--deep); color: #fff; }
.dark .section-head h2 { color: #fff; }
.dark .section-link { color: var(--accent); }
.dark .section-link:hover { color: #fff; }

/* ============================================================
   ÜRÜN KARTLARI
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.product-card:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(20, 23, 28, .10);
}
.product-media {
  background: #E7E9E5;
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  border-bottom: 1px solid var(--line);
}
.product-media img { max-height: 100%; object-fit: contain; }
.product-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-code {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em;
  color: var(--muted);
  display: flex; align-items: center; gap: 8px;
}
.product-code::before { content: ""; width: 20px; height: 10px; background: var(--barcode); color: var(--line); }
.product-card:hover .product-code::before { color: var(--accent); }
.product-body h3 { font-size: 24px; }
.product-body h3 a::after { content: ""; position: absolute; inset: 0; } /* kart tamamı tıklanır */
.product-card { position: relative; }
.product-desc { font-size: 14px; color: var(--muted); flex: 1; }
.product-cat {
  font-size: 12px; font-weight: 600; color: var(--accent-dark);
  text-transform: uppercase; letter-spacing: .06em;
}

/* ============================================================
   KATEGORİ ŞERİDİ (anasayfa)
   ============================================================ */
.cat-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--deep-line); border-radius: var(--radius);
  overflow: hidden;
}
.cat-cell {
  padding: 26px 24px 30px;
  border-right: 1px solid var(--deep-line);
  border-bottom: 1px solid var(--deep-line);
  transition: background .2s;
  position: relative;
}
.cat-cell:hover { background: var(--deep-2); }
.cat-cell:nth-child(4n) { border-right: 0; }
.cat-cell:nth-last-child(-n+4) { border-bottom: 0; }
.cat-cell h3 { font-size: 23px; color: #fff; margin-top: 12px; }
.cat-cell p { font-size: 13.5px; color: #8FA0B2; margin-top: 6px; }
.cat-cell .cat-kod {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  color: #5F7185;
}
.cat-cell:hover .cat-kod { color: var(--accent); }
.cat-cell::after {
  content: "→"; position: absolute; right: 20px; top: 22px;
  color: #3A4B5E; transition: color .2s, transform .2s;
}
.cat-cell:hover::after { color: var(--accent); transform: translateX(3px); }

/* ============================================================
   NEDEN ADC / ÖZELLİK LİSTESİ
   ============================================================ */
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.feature {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px;
  border-top: 3px solid var(--ink);
  transition: border-top-color .2s;
}
.feature:hover { border-top-color: var(--accent); }
.feature h3 { font-size: 24px; margin-bottom: 8px; }
.feature p { font-size: 14.5px; color: var(--muted); }
.feature .f-kod {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  color: var(--accent-dark); display: block; margin-bottom: 12px;
}

/* ============================================================
   REFERANSLAR
   ============================================================ */
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ref-card {
  background: var(--deep-2); border: 1px solid var(--deep-line);
  border-radius: var(--radius); padding: 26px 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.ref-card blockquote { font-size: 15px; color: #C9D3DD; flex: 1; }
.ref-card blockquote::before { content: "“"; color: var(--accent); font-family: var(--font-display); font-size: 40px; line-height: 0; vertical-align: -14px; margin-right: 4px; }
.ref-firma { font-family: var(--font-display); font-weight: 600; font-size: 19px; text-transform: uppercase; letter-spacing: .03em; color: #fff; }
.ref-sektor { font-family: var(--font-mono); font-size: 11px; letter-spacing: .1em; color: #7E8EA0; text-transform: uppercase; }

.ref-proje {
  background: var(--panel); border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  padding: 26px 28px; border-radius: var(--radius);
  display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap;
}
.ref-proje h3 { font-size: 26px; }
.ref-proje p { color: var(--muted); font-size: 15px; margin-top: 8px; max-width: 70ch; }
.ref-proje .rp-meta { font-family: var(--font-mono); font-size: 12px; color: var(--accent-dark); letter-spacing: .08em; margin-bottom: 8px; display: block; }

/* ============================================================
   CTA BANDI
   ============================================================ */
.cta-band {
  background: var(--accent);
  color: #fff;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: var(--barcode); color: rgba(255,255,255,.10);
}
.cta-inner {
  position: relative;
  padding: 64px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 28px; flex-wrap: wrap;
}
.cta-inner h2 { font-size: clamp(32px, 4vw, 50px); max-width: 20ch; }
.cta-inner .btn { background: var(--ink); color: #fff; }
.cta-inner .btn:hover { background: #000; }

/* ============================================================
   SAYFA BAŞLIĞI (iç sayfalar)
   ============================================================ */
.page-head {
  background: var(--deep); color: #fff;
  padding: 56px 0 60px;
  position: relative; overflow: hidden;
}
.page-head::after {
  content: ""; position: absolute; right: -40px; top: 50%; transform: translateY(-50%);
  width: 340px; height: 90px;
  background: var(--barcode); color: rgba(255,255,255,.07);
}
.page-head h1 { font-size: clamp(38px, 5vw, 64px); margin-top: 12px; }
.page-head .page-lead { color: #B8C2CC; margin-top: 14px; max-width: 62ch; }

.breadcrumb {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em;
  color: #7E8EA0;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { margin: 0 8px; color: #46586C; }

/* ============================================================
   ÜRÜN LİSTE SAYFASI
   ============================================================ */
/* Filtre çubuğu: eşit genişlikte hücreler, hizalı satırlar */
.filter-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 36px;
}
/* Klavye tuşu (keycap) görünümü */
.filter-bar a {
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500; letter-spacing: .03em;
  padding: 11px 10px;
  color: var(--ink);
  background: linear-gradient(180deg, #FFFFFF 0%, #F2F3F0 100%);
  border: 1px solid #C4C8C2;
  border-bottom: 3px solid #A9AEA7;
  border-radius: 8px;
  box-shadow: 0 2px 0 rgba(20,23,28,.06), 0 4px 10px rgba(20,23,28,.05);
  transition: transform .12s, box-shadow .12s, background .12s, border-color .12s;
}
.filter-bar a:hover {
  transform: translateY(-1px);
  border-color: var(--ink);
  border-bottom-color: var(--ink);
  box-shadow: 0 3px 0 rgba(20,23,28,.10), 0 6px 14px rgba(20,23,28,.08);
}
/* Seçili tuş: basılı durur */
.filter-bar a.active {
  background: linear-gradient(180deg, #1B1F26 0%, var(--ink) 100%);
  color: #fff;
  border-color: var(--ink);
  border-bottom: 3px solid #000;
  transform: translateY(1px);
  box-shadow: inset 0 2px 4px rgba(0,0,0,.35);
}
@media (max-width: 1024px) {
  .filter-bar { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 560px) {
  .filter-bar { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .filter-bar a { font-size: 12px; padding: 10px 8px; }
}

/* ============================================================
   ÜRÜN DETAY
   ============================================================ */
.product-detail {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px;
  align-items: start;
}
.pd-media {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px; display: flex; justify-content: center;
  position: sticky; top: 96px;
}
.pd-media img { max-height: 380px; object-fit: contain; }
.pd-info h1 { font-size: clamp(34px, 4vw, 54px); }
.pd-kod {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: .1em;
  color: var(--accent-dark); display: flex; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.pd-kod::before { content: ""; width: 30px; height: 13px; background: var(--barcode); color: var(--accent); }
.pd-desc { margin-top: 20px; color: var(--muted); font-size: 16px; }
.pd-desc p + p { margin-top: 12px; }

.spec-table { margin-top: 30px; width: 100%; border-collapse: collapse; }
.spec-table caption {
  text-align: left; font-family: var(--font-display); font-weight: 600;
  font-size: 21px; text-transform: uppercase; padding-bottom: 12px;
}
.spec-table th, .spec-table td {
  text-align: left; padding: 11px 14px;
  border: 1px solid var(--line); font-size: 14px;
}
.spec-table th {
  background: #E7E9E5; font-family: var(--font-mono);
  font-weight: 500; font-size: 12.5px; letter-spacing: .04em;
  width: 38%;
}
.spec-table td { background: var(--panel); }

.pd-cta { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ============================================================
   HAKKIMIZDA
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: start; }
.about-text p { margin-bottom: 16px; color: #3A4048; }
.about-text p:first-of-type { font-size: 19px; color: var(--ink); }
.about-side {
  background: var(--deep); color: #fff;
  padding: 30px 28px; border-radius: var(--radius);
}
.about-side h3 { font-size: 22px; margin-bottom: 18px; color: var(--accent); }
.about-side ul { list-style: none; }
.about-side li {
  padding: 12px 0; border-bottom: 1px solid var(--deep-line);
  font-size: 14.5px; color: #C9D3DD;
  display: flex; gap: 12px;
}
.about-side li:last-child { border-bottom: 0; }
.about-side li::before { content: "▸"; color: var(--accent); }

.timeline { margin-top: 60px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 3px solid var(--ink); }
.tl-item { padding: 22px 20px 0 0; border-right: 1px dashed var(--line); padding-right: 20px; }
.tl-item + .tl-item { padding-left: 20px; }
.tl-item:last-child { border-right: 0; }
.tl-item b { font-family: var(--font-display); font-size: 30px; color: var(--accent-dark); display: block; }
.tl-item span { font-size: 13.5px; color: var(--muted); }

/* ============================================================
   İLETİŞİM
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-info h2 { font-size: 30px; margin-bottom: 22px; }
.ci-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
.ci-item:last-child { border-bottom: 0; }
.ci-item .ci-label {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-dark); display: block; margin-bottom: 4px;
}
.ci-item a, .ci-item span { font-family: var(--font-display); font-size: 22px; font-weight: 600; }
.ci-item a:hover { color: var(--accent-dark); }

.contact-form {
  background: var(--panel); border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  padding: 32px; border-radius: var(--radius);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 6px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: var(--radius);
  font: inherit; font-size: 15px; background: var(--bg);
  transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent);
}
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

.alert { padding: 14px 18px; border-radius: var(--radius); margin-bottom: 22px; font-size: 14.5px; }
.alert-ok { background: #E8F5E9; border: 1px solid #A5D6A7; color: #1B5E20; }
.alert-err { background: #FDECEA; border: 1px solid #F5B7B1; color: #922B21; }

/* ============================================================
   404
   ============================================================ */
.notfound { text-align: center; padding: 120px 24px; }
.notfound .nf-code { font-family: var(--font-mono); letter-spacing: .3em; color: var(--accent-dark); }
.notfound h1 { font-size: clamp(60px, 10vw, 130px); }
.notfound p { color: var(--muted); margin: 14px 0 30px; }
.notfound .nf-barcode { width: 260px; height: 40px; margin: 0 auto 26px; background: var(--barcode); color: var(--line); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--deep); color: #C9D3DD; margin-top: 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px;
  padding: 64px 24px 48px;
}
.footer-brand p { font-size: 14px; color: #8FA0B2; margin-top: 14px; max-width: 34ch; }
.footer-barcode { width: 140px; height: 26px; margin-top: 22px; background: var(--barcode); color: #33475C; }
.footer-col h3 {
  font-size: 17px; color: #fff; margin-bottom: 16px;
  letter-spacing: .06em;
}
.footer-col a { display: block; font-size: 14px; color: #8FA0B2; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-contact a, .footer-contact span { display: block; padding: 4px 0; font-size: 14.5px; color: #C9D3DD; }
.footer-contact a:hover { color: var(--accent); }
.footer-hours { margin-top: 16px; font-size: 13px; color: #6B7D91; }
.footer-bottom { border-top: 1px solid var(--deep-line); }
.footer-bottom-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; font-size: 13px; color: #6B7D91; flex-wrap: wrap; gap: 8px;
}
.footer-code { font-family: var(--font-mono); letter-spacing: .12em; font-size: 11.5px; }

/* ============================================================
   ANİMASYONLAR (scroll reveal)
   ============================================================ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-barcode::after { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: .01ms !important; }
}

/* ============================================================
   DUYARLI TASARIM
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; padding: 64px 0 72px; }
  .hero-visual { order: -1; }
  .hero-visual svg { width: min(260px, 70%); }
  .cat-strip { grid-template-columns: repeat(2, 1fr); }
  .cat-cell:nth-child(4n) { border-right: 1px solid var(--deep-line); }
  .cat-cell:nth-child(2n) { border-right: 0; }
  .cat-cell:nth-last-child(-n+4) { border-bottom: 1px solid var(--deep-line); }
  .cat-cell:nth-last-child(-n+2) { border-bottom: 0; }
  .feature-grid, .ref-grid { grid-template-columns: 1fr 1fr; }
  .product-detail, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .pd-media { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; row-gap: 24px; }
}

@media (max-width: 720px) {
  /* Footer sütunları mobilde alt alta: yatay taşmayı önler */
  .footer-grid { grid-template-columns: 1fr; gap: 30px; padding: 48px 24px 40px; }
  .footer-brand p { max-width: none; }

  .header-phone { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .main-nav {
    display: none;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--line);
    flex-direction: column; padding: 12px 24px 20px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 4px; font-size: 17px; border-bottom: 1px solid var(--line); }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { color: var(--accent-dark); }

  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stat:nth-child(2n) { border-right: 0; }
  .hero-stat:nth-child(-n+2) { border-bottom: 1px solid var(--deep-line); }

  .section { padding: 60px 0; }
  .cat-strip, .feature-grid, .ref-grid { grid-template-columns: 1fr; }
  .cat-cell { border-right: 0 !important; border-bottom: 1px solid var(--deep-line) !important; }
  .cat-cell:last-child { border-bottom: 0 !important; }
  .form-row { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .tl-item { border-right: 0; padding-left: 0 !important; }
}

/* ============================================================
   HARİTA (iletişim sayfası)
   ============================================================ */
.map-section { padding-top: 0; }
.map-title { font-size: clamp(28px, 3.4vw, 42px); margin-top: 10px; }
.map-lead { color: var(--muted); margin: 10px 0 26px; max-width: 62ch; }
.map-wrap {
  border: 1px solid var(--line);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 10px 26px rgba(20, 23, 28, .07);
}
.map-wrap iframe { display: block; filter: grayscale(.25) contrast(1.02); }

/* ============================================================
   WHATSAPP YÜZEN BUTON
   ============================================================ */
.wa-btn {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 900;
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .28);
  transition: transform .18s, box-shadow .18s, background .18s;
}
.wa-btn:hover {
  background: #1EBE5A;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .32);
}
.wa-btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
@media (max-width: 720px) {
  .wa-btn { right: 16px; bottom: 16px; width: 54px; height: 54px; }
}
@media print { .wa-btn { display: none; } }

/* ============================================================
   REFERANSLAR — sayaçlar, vitrin proje, proje ızgarası
   ============================================================ */
.ref-sayaclar {
  display: flex; flex-wrap: wrap; gap: 0;
  margin-top: 30px; border-top: 1px solid var(--deep-line);
  padding-top: 22px;
}
.rs-item { padding-right: 48px; margin-right: 48px; border-right: 1px solid var(--deep-line); }
.rs-item:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.rs-item b {
  display: block; font-family: var(--font-display); font-weight: 800;
  font-size: 34px; color: var(--accent); line-height: 1;
}
.rs-item span { font-size: 13px; color: #93A1AE; }

/* --- Vitrin (öne çıkan proje) --- */
.vitrin {
  display: grid; grid-template-columns: 1.05fr 1fr;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(20, 23, 28, .09);
}
.vitrin-media { position: relative; background: var(--bg); min-height: 340px; }
.vitrin-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.vitrin-yil {
  position: absolute; top: 18px; left: 18px;
  background: var(--accent); color: #fff;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 500;
  padding: 6px 12px; border-radius: 3px;
  letter-spacing: .06em;
}
.vitrin-body { padding: 40px 42px; display: flex; flex-direction: column; }
.vitrin-etiketler { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.etiket {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .05em;
  text-transform: uppercase;
  padding: 5px 11px; border: 1px solid var(--line);
  border-radius: 999px; color: var(--muted); background: var(--bg);
}
.etiket-kod { color: var(--accent-dark); border-color: #F3C9B5; background: #FFF3EE; }
.vitrin-body h3 { font-size: clamp(24px, 2.5vw, 33px); margin-bottom: 14px; }
.vitrin-desc { color: var(--muted); }
.vitrin-desc p { margin-bottom: 12px; }
.vitrin-body .btn { align-self: flex-start; margin-top: 12px; }

/* --- Proje ızgarası --- */
.proje-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.proje-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.proje-card:hover {
  transform: translateY(-4px);
  border-color: #BFC4BD;
  box-shadow: 0 14px 32px rgba(20, 23, 28, .12);
}
.pc-media { position: relative; aspect-ratio: 4 / 3; background: var(--bg); overflow: hidden; }
.pc-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s; }
.proje-card:hover .pc-media img { transform: scale(1.04); }
.pc-yil {
  position: absolute; top: 12px; left: 12px;
  background: rgba(20, 23, 28, .88); color: #fff;
  font-family: var(--font-mono); font-size: 11.5px;
  padding: 4px 10px; border-radius: 3px;
}
.pc-body { padding: 22px 22px 20px; display: flex; flex-direction: column; flex: 1; }
.pc-kod {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--accent-dark);
  letter-spacing: .06em; margin-bottom: 8px; display: block;
}
.pc-body h3 { font-size: 21px; line-height: 1.12; margin-bottom: 6px; }
.pc-musteri { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 10px; }
.pc-desc { font-size: 14.5px; color: var(--muted); flex: 1; margin-bottom: 16px; }
.pc-alt {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  border-top: 1px solid var(--line); padding-top: 14px;
}
.pc-konum { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }

@media (max-width: 1024px) {
  .vitrin { grid-template-columns: 1fr; }
  .vitrin-media { min-height: 260px; }
  .vitrin-body { padding: 30px 26px; }
  .proje-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .proje-grid { grid-template-columns: 1fr; }
  .rs-item { padding-right: 24px; margin-right: 24px; }
  .rs-item b { font-size: 28px; }
}

/* ============================================================
   ÜRÜN DOSYA / KATALOG BAĞLANTISI
   ============================================================ */
.urun-dosya {
  display: flex; align-items: center; gap: 14px;
  margin: 26px 0 6px;
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  transition: border-color .18s, box-shadow .18s, transform .18s;
}
.urun-dosya:hover {
  border-color: #BFC4BD; border-left-color: var(--accent-dark);
  box-shadow: 0 8px 20px rgba(20, 23, 28, .09);
  transform: translateY(-2px);
}
.ud-ikon {
  flex: 0 0 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: #FFF3EE; color: var(--accent-dark);
  border-radius: 6px;
}
.ud-metin { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.ud-metin b {
  font-family: var(--font-display); font-weight: 700; font-size: 18px;
  text-transform: uppercase; letter-spacing: .01em; color: var(--ink);
}
.ud-metin small { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }
.ud-ok { font-size: 20px; color: var(--accent); }

/* ============================================================
   SOSYAL MEDYA (footer)
   ============================================================ */
.sosyal-satir { margin-top: 22px; }
.sosyal-etiket {
  display: block; font-family: var(--font-mono); font-size: 11.5px;
  text-transform: uppercase; letter-spacing: .08em;
  color: #93A1AE; margin-bottom: 10px;
}
.sosyal-ikonlar { display: flex; gap: 10px; flex-wrap: wrap; }
.sosyal-ikon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--deep-line);
  border-radius: 8px;
  color: #C9D3DC;
  transition: transform .18s, background .18s, color .18s, border-color .18s;
}
.sosyal-ikon:hover { transform: translateY(-3px); color: #fff; border-color: transparent; }
.sosyal-instagram:hover { background: linear-gradient(45deg, #F58529, #DD2A7B 55%, #8134AF); }
.sosyal-youtube:hover   { background: #FF0000; }
.sosyal-facebook:hover  { background: #1877F2; }
.sosyal-linkedin:hover  { background: #0A66C2; }
.sosyal-ikon:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* ============================================================
   BANNER SLIDER
   ============================================================ */
.hero--slider .hero-slaytlar { position: relative; }
.hero-slayt { display: none; }
.hero-slayt.aktif { display: block; animation: slaytGir .55s ease both; }
@keyframes slaytGir {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}
.hero-foto {
  width: 100%; max-width: 560px;
  border-radius: var(--radius);
  border: 1px solid var(--deep-line);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .34);
  display: block; margin-left: auto;
  aspect-ratio: 4 / 3; object-fit: cover;
}

/* Kontroller */
.hero-kontrol {
  display: flex; align-items: center; gap: 16px;
  margin-top: 26px;
}
.hs-ok {
  width: 42px; height: 42px; flex: 0 0 42px;
  background: transparent; color: #C9D3DC;
  border: 1px solid var(--deep-line); border-radius: 50%;
  font-size: 22px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .18s, color .18s, border-color .18s, transform .18s;
}
.hs-ok:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-2px); }
.hs-ok:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.hs-noktalar { display: flex; gap: 9px; align-items: center; }
.hs-nokta {
  width: 30px; height: 5px; padding: 0;
  background: var(--deep-line); border: 0; border-radius: 999px;
  cursor: pointer; transition: background .2s, width .2s;
}
.hs-nokta.aktif { background: var(--accent); width: 46px; }
.hs-nokta:hover { background: #9AA7B4; }
.hs-nokta.aktif:hover { background: var(--accent); }
.hs-nokta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

@media (max-width: 720px) {
  .hero-foto { max-width: 100%; margin: 0 0 24px; }
  .hero-kontrol { justify-content: center; margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-slayt.aktif { animation: none; }
}

/* ============================================================
   LOGO GÖRSELİ VE SLOGAN
   ============================================================ */
.logo-gorsel { display: block; width: auto; max-width: 240px; object-fit: contain; flex: 0 0 auto; }

/* Barkod işareti solda kalır; sağında logo yazısı, altında slogan */
.logo-yazi-blok {
  display: flex; flex-direction: column;
  align-items: flex-start; justify-content: center;
  line-height: 1.05;
}
.logo-slogan {
  display: block;
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .04em; color: var(--muted);
  line-height: 1.25; margin-top: 3px;
  white-space: normal;      /* uzun slogan kesilmeyip alt satıra iner */
  max-width: 42ch;
}
/* Görsel logo kullanılıyorsa slogan sağda, ince çizgiyle ayrılır */
.logo-slogan--yanda {
  margin: 0 0 0 12px; padding-left: 12px;
  border-left: 1px solid var(--line);
  max-width: 190px; white-space: normal;
  align-self: center;
}
.footer-slogan {
  font-family: var(--font-mono); font-size: 11.5px;
  letter-spacing: .05em; color: #93A1AE;
  margin-top: 8px; line-height: 1.35;
}
.logo-gorsel--footer { max-width: 220px; margin-bottom: 4px; }

@media (max-width: 1200px) {
  .logo-slogan { max-width: 30ch; }
}
/* Dar masaüstü/tablet: logo + menü + telefon aynı satıra sığmayabiliyor */
@media (max-width: 1080px) {
  .header-phone { display: none; }
  .main-nav { margin-left: auto; }
}
@media (max-width: 980px) {
  .logo-slogan { max-width: 26ch; font-size: 10px; }
  /* Görsel logo + slogan: yan yana yerine alt alta (kesin dizilim) */
  .logo--gorselli { flex-direction: column; align-items: flex-start; gap: 3px; }
  .logo--gorselli .logo-slogan--yanda {
    margin: 0; padding: 0; border-left: 0;
    max-width: 34ch; align-self: flex-start;
  }
}
@media (max-width: 720px) {
  .logo-gorsel { max-width: 132px; }
  .logo-slogan { font-size: 9.5px; max-width: 26ch; }
  .logo-slogan--yanda { max-width: 30ch; }
}

@media (max-width: 400px) {
  .logo-gorsel { max-width: 118px; }
  .logo-slogan { font-size: 9px; max-width: 24ch; letter-spacing: .02em; }
  .container { padding-left: 16px; padding-right: 16px; }
}

/* ============================================================
   MARKALAR / ÇÖZÜM ORTAKLARI — kayan şerit
   ============================================================ */
.marka-bolum { padding-top: 64px; padding-bottom: 64px; overflow: hidden; }
.marka-lead { color: var(--muted); margin-top: 10px; max-width: 62ch; }

/* Şerit: kenarlarda yumuşak solma */
.marka-serit {
  position: relative;
  margin-top: 8px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marka-kayan {
  display: flex;
  width: max-content;
  gap: 18px;
  animation: markaKay var(--marka-sure, 35s) linear infinite;
}
@keyframes markaKay {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }   /* iki kopyanın ilki kadar kayar */
}

/* Fare şeridin üzerindeyken dursun */
.marka-serit:hover .marka-kayan,
.marka-serit:focus-within .marka-kayan { animation-play-state: paused; }

.marka-kutu {
  flex: 0 0 auto;
  width: 190px; height: 104px;
  display: flex; align-items: center; justify-content: center;
  padding: 18px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.marka-kutu img {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto;
  object-fit: contain;
  /* Duruş hali: soluk gri */
  filter: grayscale(1) opacity(.45);
  transition: filter .3s ease, transform .3s ease;
}
/* Üzerine gelince: kendi renkleri ve hafif büyüme */
.marka-kutu:hover img,
.marka-kutu:focus-visible img { filter: none; transform: scale(1.06); }
.marka-kutu:hover {
  border-color: #C0C5BE;
  box-shadow: 0 10px 26px rgba(20, 23, 28, .12);
  transform: translateY(-3px);
}
.marka-kutu:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

@media (max-width: 720px) {
  .marka-bolum { padding-top: 48px; padding-bottom: 48px; }
  .marka-kutu { width: 150px; height: 86px; padding: 14px 16px; border-radius: 10px; }
  .marka-kayan { gap: 12px; }
}
/* Hareket azaltma tercihi: kaydırmayı durdur, sarmalı ızgaraya dön */
@media (prefers-reduced-motion: reduce) {
  .marka-kayan { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; }
  .marka-serit { -webkit-mask-image: none; mask-image: none; }
  .marka-kutu img { filter: grayscale(1) opacity(.55); }
}

/* Az logo varsa sabit, ortalanmış dizilim */
.marka-sabit {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 18px; margin-top: 8px;
}