/* ==========================================================================
   te.css — Bina Cephesi Aydınlatma tasarım sistemi
   Referans: endüstriyel ürün kataloğu.
   Kurallar: köşe yarıçapı 0, gölge yok, arayüzde gradyan yok, kıllık ince
   tipografi, 1px cetvel çizgileri, koyu "vitrin" bantları (#0f0e12).
   Renk yalnızca ürün fotoğrafında ve ışık videolarında bulunur.
   ========================================================================== */

@font-face {
  font-family: 'Inter TE';
  src: url('/assets/fonts/Inter-Var-300-700.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Renkler */
  --canvas: #f6f8f7;
  --paper: #ffffff;
  --ink: #000000;
  --carbon: #0f0e12;
  --steel: #e5e5e5;
  --graphite: #b2b2b2;
  --muted: #5f5f66;            /* ikincil metin — kanvas üstünde 6:1 kontrast */
  --rule-dark: rgba(246, 248, 247, 0.16);

  /* Tipografi */
  --font: 'Inter TE', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --w-display: 600;            /* büyük başlıklar: net ve baskın */
  --w-heading: 500;            /* bölüm/kart başlıkları */
  --w-text: 400;               /* gövde, etiket */
  --w-strong: 600;
  --text-caption: 13px;
  --text-body: 16px;
  --text-subheading: 19px;
  --text-heading-sm: 24px;
  --text-heading: 26px;
  --text-heading-lg: 40px;
  --text-display: clamp(46px, 7.2vw, 108px);

  /* Ölçü */
  --s8: 8px;
  --s15: 15px;
  --s22: 22px;
  --s33: 33px;
  --s66: 66px;
  --s99: 99px;
  --page-max: 1200px;
  --gutter: 33px;

  /* Eski sayfa değişkenleri (geçiş güvenliği) */
  --color-surface: var(--canvas);
  --color-border: var(--steel);
  --color-dark: var(--ink);
  --color-anthracite: var(--ink);
  --color-white: var(--paper);
  --spacing-xs: 8px;
  --spacing-sm: 15px;
  --spacing-md: 22px;
  --spacing-lg: 33px;
  --spacing-xl: 66px;
  --spacing-2xl: 99px;
  --size-xs: 13px;
  --size-sm: 15px;
}

@media (max-width: 640px) {
  :root { --gutter: 16px; --s66: 44px; --s99: 66px; }
}

/* ── Temel ────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font);
  font-weight: var(--w-text);
  font-size: var(--text-body);
  line-height: 1.5;
  font-feature-settings: 'kern', 'calt';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, video, svg { display: block; max-width: 100%; }
img { height: auto; }           /* width/height öznitelikleri sabit yüksekliğe dönüşmesin */
video { height: auto; }

h1, h2, h3, h4, h5, h6, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
h1, h2, h3, h4, h5, h6 { font-weight: var(--w-text); line-height: 1.15; letter-spacing: -0.005em; }
ul, ol { padding: 0; list-style: none; }
strong, b { font-weight: var(--w-strong); }
small { font-size: var(--text-caption); }

a { color: inherit; text-decoration: none; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration: underline; }
p a, li a, td a, dd a, .seo-brief__text a, .faq-item p a { text-decoration: underline; }
p a:hover, li a:hover, td a:hover { text-decoration-thickness: 2px; }

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; border-radius: 0; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.te-band :focus-visible, .te-hero__media :focus-visible, .site-footer :focus-visible, .about-highlight :focus-visible, .te-series__video :focus-visible { outline-color: var(--canvas); }

::selection { background: var(--ink); color: var(--canvas); }

.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;
}

.skip-link {
  position: absolute; left: var(--gutter); top: -60px; z-index: 200;
  background: var(--ink); color: var(--canvas); padding: 10px 16px; font-size: var(--text-caption);
}
.skip-link:focus { top: 8px; }

.container {
  width: 100%;
  max-width: calc(var(--page-max) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── Etiket, başlık, metin ─────────────────────────────────────────────── */
.section-label,
.te-label,
.page-intro__label,
.case-hero__label,
.product-alternating__label,
.about-highlight__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-caption);
  font-weight: var(--w-text);
  line-height: 1.5;
  letter-spacing: 0.005em;
  text-transform: lowercase;
  color: var(--ink);
  font-weight: var(--w-heading);
}
.section-label::before,
.te-label::before,
.page-intro__label::before,
.case-hero__label::before {
  content: '';
  width: 7px; height: 7px;
  background: currentColor;
  flex: none;
}

.section-title,
.te-title {
  font-size: var(--text-heading-lg);
  font-weight: var(--w-heading);
  line-height: 1.11;
  letter-spacing: -0.012em;
  text-wrap: balance;
}
.section-subtitle,
.te-lead {
  font-size: var(--text-subheading);
  font-weight: var(--w-text);
  line-height: 1.4;
  color: var(--muted);
  max-width: 62ch;
  text-wrap: pretty;
}

/* ── Düğme ve bağlantı ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--ink);
  border-radius: 0;
  font-size: 15px;
  font-weight: var(--w-text);
  line-height: 1.2;
  letter-spacing: 0.005em;
  text-transform: lowercase;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn:hover { text-decoration: none; }
.btn--primary, .btn--accent {
  background: var(--ink);
  color: var(--canvas);
}
.btn--primary:hover, .btn--accent:hover { background: transparent; color: var(--ink); }
.btn--secondary, .btn--ghost-dark {
  background: transparent;
  color: var(--ink);
}
.btn--secondary:hover, .btn--ghost-dark:hover { background: var(--ink); color: var(--canvas); }
.btn--ghost { background: transparent; color: var(--ink); border-color: transparent; padding-inline: 0; }
.btn--ghost:hover { text-decoration: underline; }
.btn--sm { min-height: 36px; padding: 6px 12px; font-size: 13px; }
.btn--lg { min-height: 52px; padding: 14px 24px; font-size: 16px; }

.te-link,
.editorial-text-link,
.product-alternating__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
  font-weight: var(--w-text);
  text-transform: lowercase;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  line-height: 1.3;
}
.te-link:hover,
.editorial-text-link:hover,
.product-alternating__link:hover { text-decoration: none; border-bottom-width: 2px; padding-bottom: 0; }

.te-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s15) var(--s22); }

/* ── Header ────────────────────────────────────────────────────────────── */
.site-header {
  position: relative;
  z-index: 50;
  background: var(--canvas);
  border-bottom: 1px solid var(--steel);
}
.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: var(--s33);
  padding-block: 24px 26px;
}

.te-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--ink);
  text-decoration: none;
}
.te-brand:hover { text-decoration: none; }
.te-brand__mark { width: 48px; height: 48px; flex: none; }
.te-wordmark {
  display: flex;
  flex-direction: column;
  font-size: 23px;
  line-height: 1.04;
  font-weight: var(--w-display);
  letter-spacing: -0.02em;
  text-transform: lowercase;
  white-space: nowrap;
}
/* İki satır aynı genişlikte: "aydınlatma" harf aralığıyla "bina cephesi"nin sol ve sağ kenarına oturur.
   Değerler Inter TE 600 mürekkep ölçüsünden (em, her boyutta geçerli); sondaki harf aralığı geri alınır. */
.te-wordmark > span + span,
.footer-wordmark > span + span {
  letter-spacing: 0.065em;
  padding-left: 0.03em;
  margin-right: -0.065em;
}

.te-nav {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: clamp(22px, 3.2vw, 52px);
  padding-left: clamp(22px, 6vw, 110px);
}
.te-nav__item {
  flex: none;
  display: grid;
  grid-template-columns: 40px auto;
  column-gap: 12px;
  align-items: start;
  align-content: start;
}
.te-nav__head {
  display: contents;
  color: var(--ink);
  text-decoration: none;
}
.te-nav__icon {
  grid-row: span 2;
  width: 40px;
  height: 40px;
  color: var(--ink);
}
.te-nav__label {
  font-size: 24px;
  line-height: 1;
  font-weight: var(--w-heading);
  text-transform: lowercase;
  letter-spacing: -0.01em;
  padding-top: 1px;
}
.te-nav__head:hover .te-nav__label,
.te-nav__head[aria-current='page'] .te-nav__label { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.te-nav__sub {
  margin-top: 10px;
  display: grid;
  gap: 1px;
  font-size: var(--text-caption);
  line-height: 1.4;
  text-transform: lowercase;
  white-space: nowrap;
}
.te-nav__sub a { text-decoration: none; color: var(--ink); }
.te-nav__sub a:hover { text-decoration: underline; }

.te-header-end {
  display: flex;
  align-items: center;
}

.te-menu-btn {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 0 0 12px;
  font-size: 19px;
  font-weight: var(--w-text);
  text-transform: lowercase;
}
.te-menu-btn__icon { width: 22px; height: 12px; position: relative; }
.te-menu-btn__icon::before,
.te-menu-btn__icon::after {
  content: ''; position: absolute; left: 0; right: 0; height: 1.5px; background: var(--ink);
  transition: transform 200ms ease, top 200ms ease;
}
.te-menu-btn__icon::before { top: 2px; }
.te-menu-btn__icon::after { top: 9px; }
.te-menu-btn[aria-expanded='true'] .te-menu-btn__icon::before { top: 5.5px; transform: rotate(45deg); }
.te-menu-btn[aria-expanded='true'] .te-menu-btn__icon::after { top: 5.5px; transform: rotate(-45deg); }

@media (max-width: 1240px) {
  .te-nav__sub { display: none; }
  .te-nav__item { grid-template-columns: 30px auto; column-gap: 9px; align-items: center; }
  .te-nav__icon { width: 30px; height: 30px; grid-row: auto; }
  .te-nav__label { font-size: 20px; }
  .header-inner { align-items: center; padding-block: 18px; }
  .te-brand__mark { width: 42px; height: 42px; }
}
@media (max-width: 820px) {
  .te-nav { display: none; }
  .te-menu-btn { display: inline-flex; }
  .header-inner { grid-template-columns: 1fr auto; padding-block: 14px; }
  .te-brand { gap: 11px; }
  .te-brand__mark { width: 38px; height: 38px; }
  .te-wordmark { font-size: 20px; }
}

/* Mobil menü */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  overflow-y: auto;
  background: var(--canvas);
  padding: 96px var(--gutter) var(--s66);
}
.mobile-menu.open { display: block; }
.mobile-menu__group { border-top: 1px solid var(--ink); padding: 14px 0 22px; }
.mobile-menu__group:last-of-type { border-bottom: 1px solid var(--ink); }
.mobile-menu__head {
  display: flex; align-items: center; gap: 14px;
  font-size: 34px; line-height: 1.05; font-weight: var(--w-display); letter-spacing: -0.015em;
  text-transform: lowercase; text-decoration: none;
}
.mobile-menu__head svg { width: 30px; height: 30px; flex: none; }
.mobile-menu__sub { margin: 10px 0 0 44px; display: grid; gap: 6px; font-size: 16px; text-transform: lowercase; }
.mobile-menu__sub a { text-decoration: none; }
.mobile-menu__note { margin-top: var(--s33); font-size: var(--text-caption); color: var(--muted); }
body.menu-open .site-header { position: relative; z-index: 60; }
@media (min-width: 821px) { .mobile-menu, .mobile-menu.open { display: none; } }

/* ── Breadcrumb ───────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: var(--s22);
  font-size: var(--text-caption);
  text-transform: lowercase;
  color: var(--muted);
}
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb__current { color: var(--ink); }

/* ── Sayfa başlığı (hub, seri, kurumsal, rehber) ──────────────────────── */
.page-intro,
.case-hero,
.te-head {
  padding-block: var(--s66) var(--s33);
}
.page-intro .container,
.te-head .container,
.case-hero .container {
  display: grid;
  justify-items: start;
}
.page-intro__label, .case-hero__label { margin-bottom: var(--s22); }
.page-intro__title,
.case-hero__title,
.te-head__title {
  font-size: clamp(40px, 5.4vw, 76px);
  font-weight: var(--w-display);
  line-height: 1.06;
  letter-spacing: -0.022em;
  max-width: 16ch;
  text-wrap: balance;
}
.case-hero__title { max-width: 18ch; }
.page-intro__subtitle,
.case-hero__lead,
.te-head__lead {
  margin-top: var(--s33);
  font-size: var(--text-subheading);
  line-height: 1.45;
  color: var(--ink);
  max-width: 64ch;
  text-wrap: pretty;
}
.case-hero__lead { font-size: 17px; max-width: 78ch; color: var(--muted); }

/* ── Bölüm ritmi ──────────────────────────────────────────────────────── */
.section,
.about-section,
.contact-page,
.projects-page {
  padding-block: var(--s66);
}
main > section + section:not(.te-band):not(.cta-banner) { border-top: 1px solid var(--steel); }
main > .te-band + section { border-top: 0; }
.section--flush-bottom { padding-bottom: var(--s66); }
.section--flush-top { padding-top: 0; }
.section--paper { background: var(--paper); }

.section-header {
  display: grid;
  grid-template-columns: minmax(150px, 3fr) 9fr;
  column-gap: var(--s33);
  row-gap: 10px;
  align-items: start;
  margin-bottom: var(--s33);
}
.section-header > .section-label { grid-column: 1; grid-row: 1 / span 3; padding-top: 12px; }
.section-header > .section-title,
.section-header > .section-subtitle,
.section-header > h1,
.section-header > h2,
.section-header > p { grid-column: 2; }
.section-header.centered { text-align: left; }
.section-header > .te-actions { grid-column: 2; margin-top: 12px; }
.section-header .section-subtitle { margin-top: 6px; }
h1.section-title { font-size: clamp(40px, 5.2vw, 72px); font-weight: var(--w-display); line-height: 1.03; letter-spacing: -0.02em; }

@media (max-width: 760px) {
  .section-header { grid-template-columns: 1fr; }
  .section-header > * { grid-column: 1 !important; grid-row: auto !important; }
  .section-header > .section-label { padding-top: 0; margin-bottom: 4px; }
}

/* ── Cetvel çizgili ızgara ────────────────────────────────────────────── */
.grid,
.values-grid,
.te-grid,
.contact-cards-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--steel);
  border-left: 1px solid var(--steel);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3, .values-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid > *, .values-grid > *, .te-grid > *, .contact-cards-grid > * { background: var(--canvas); min-width: 0; }
/* Cetvel çizgisi: hücre başına sağ + alt kenar; eksik son satırda boş alan kanvas kalır */
.grid > *, .values-grid > *, .te-grid > *, .contact-cards-grid > *,
.spec-tabs__docs > * {
  border-right: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}
@media (max-width: 980px) {
  .grid-3, .grid-4, .values-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4, .values-grid { grid-template-columns: 1fr; }
}

.solution-card,
.value-item {
  padding: var(--s22) var(--s22) var(--s33);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.solution-card__title,
.value-item__title {
  font-size: var(--text-subheading);
  font-weight: var(--w-heading);
  line-height: 1.2;
}
.value-item__title a { text-decoration: none !important; border-bottom: 1px solid currentColor; }
.solution-card__desc,
.value-item__desc {
  font-size: 15px;
  line-height: 1.5;
  color: var(--muted);
}
.value-item__desc strong { color: var(--ink); font-weight: var(--w-text); }
.value-item__number { display: none; }

/* Rehberlerde ürün serisine / projeye giden kartlar: çizgisiz kart ızgarası, görsel üstte (ürün: beyaz kare
   plaka contain; proje: 3:2 fotoğraf — sitedeki ürün ve proje kartlarıyla aynı dil), metin altında. */
.grid.te-cards,
.values-grid.te-cards {
  gap: clamp(36px, 4.2vw, 60px) clamp(16px, 2.8vw, 40px);
  border: 0;
}
.grid.te-cards > *,
.values-grid.te-cards > * { border: 0; background: none; }
.values-grid.te-cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.values-grid.te-cards > .value-item { padding: 0; gap: 10px; }
.value-item__media {
  display: block;
  aspect-ratio: 1 / 1;
  margin-bottom: 4px;
  overflow: hidden;
  background: var(--paper);
}
.value-item__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}
.value-item__media:hover img { transform: scale(1.04); }
.te-cards .card--project .card__desc { flex-basis: 100%; margin-top: 4px; }
.te-cards + * { margin-top: var(--s33); }      /* kartların altındaki düğme ("tüm projeleri görüntüleyin") yapışmasın */
@media (max-width: 980px) { .values-grid.te-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) {
  .values-grid.te-cards { grid-template-columns: 1fr; }
  .value-item__media { aspect-ratio: 4 / 3; }
}

/* Rehber ve genel kartlar */
.card {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  background: var(--canvas);
}
.card:hover { text-decoration: none; }
.card__body { display: flex; flex-direction: column; gap: 8px; padding: var(--s22); flex: 1; }
.card__meta { font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; display: flex; gap: 10px; }
.card__title { font-size: var(--text-heading-sm); font-weight: var(--w-heading); line-height: 1.15; }
.card__desc { font-size: 15px; color: var(--muted); line-height: 1.5; }
a.card:hover .card__title { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.card__more { margin-top: auto; padding-top: var(--s15); font-size: 15px; }

/* ── Ürün ve proje kartları: görsel üstte, ad + kısa bilgi altında ────────
   Kutu yok: görsel kartın kendisidir; altında ad solda, kısa bilgi sağda
   (sığmazsa alt satıra geçer). Izgara sayfa konteyneriyle aynı genişlikte.
   Kartın tamamı bağlantıdır. */
.te-catalog,
.projects-grid,
.te-projects {
  --col-gap: clamp(16px, 2.8vw, 40px);
  --row-gap: clamp(36px, 4.2vw, 60px);
  display: grid;
  gap: var(--row-gap) var(--col-gap);
  max-width: calc(var(--page-max) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.te-catalog { grid-template-columns: repeat(4, minmax(0, 1fr)); padding-block: var(--s66); }
.te-catalog--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.te-catalog--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.te-catalog--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.te-product {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}
.te-product:hover { text-decoration: none; }
.te-product__media {
  order: -1;
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--paper);
}
.te-catalog--2 .te-product__media { aspect-ratio: 4 / 3; }
.te-product__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 700ms cubic-bezier(.2,.7,.2,1);
}
.te-product__body,
.card--project .card__body {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 2px 16px;
}
/* Dar kartta kısa bilgi her zaman adın altında (aynı ızgarada tutarlı); geniş kartta sağda */
.te-product, .card--project { container-type: inline-size; }
/* Alt alta dizilişte sarma kapalı: sütun yönünde sarma, uzun açıklamayı yanda ikinci sütuna taşıyordu */
@container (max-width: 240px) { .te-product__body { flex-direction: column; flex-wrap: nowrap; align-items: flex-start; } }
@container (max-width: 420px) {
  .card--project .card__body { flex-direction: column; flex-wrap: nowrap; align-items: flex-start; }
  .te-cards .card--project .card__desc { flex-basis: auto; }
}
.te-product__name { font-size: 19px; font-weight: var(--w-display); line-height: 1.25; letter-spacing: -0.01em; }
.te-product__meta { font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; }
a.te-product:hover .te-product__media img { transform: scale(1.04); }
a.te-product:hover .te-product__name { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
@media (max-width: 1100px) { .te-catalog--5 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 980px) {
  .te-catalog, .te-catalog--3, .te-catalog--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .te-product__name { font-size: 16px; }
  .te-catalog--2 .te-product__media { aspect-ratio: 1 / 1; }
}

/* ── Koyu vitrin bandı + tanıtım filmi ─────────────────────────────────
   Video bandın tamamını kaplar (sayfanın tam genişliği, kenar boşluğu yok); yükseklik ekranı aşmaz
   (çubukla birlikte ekrana sığar; çok geniş ekranda film üstten-alttan biraz kırpılır). Altında
   yalnızca oynatıcı çubuğu. te-band--top: seri/ürün sayfasında <main>'in ilk öğesi (işaret sınıfı). */
.te-band {
  background: var(--carbon);
  color: var(--canvas);
}
.te-band__stage { position: relative; }
.te-band__frame {
  position: relative;
  width: 100%;                  /* yükseklik sınırı oran üzerinden genişliği daraltmasın */
  aspect-ratio: 16 / 9;
  max-height: calc(100vh - 44px);
  background: var(--carbon);
  overflow: hidden;
}
.te-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--carbon);
  cursor: pointer;              /* tıklayınca durur / oynar */
}

/* ── Video oynatıcı çubuğu (main.js kurar): oynat/duraklat, süre, ilerleme, ses + düzey, geniş ekran ── */
.te-player {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
  padding: 0 clamp(8px, 1.6vw, 24px);
  background: var(--carbon);
  border-top: 1px solid var(--rule-dark);
  color: var(--graphite);
  font-size: var(--text-caption);
  line-height: 1;
  text-transform: lowercase;
}
.te-player__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 32px;
  min-height: 36px;
  padding: 0 4px;
  color: var(--graphite);
  white-space: nowrap;
}
.te-player__btn:hover,
.te-player__btn[aria-pressed='true'] { color: var(--canvas); }
.te-player__ico svg { display: block; width: 14px; height: 14px; fill: currentColor; }
.te-player__time,
.te-player__pct { flex: none; color: var(--canvas); font-variant-numeric: tabular-nums; white-space: nowrap; }
.te-player__time { min-width: 10ch; }
.te-player__pct { min-width: 4.5ch; margin-left: -6px; }
.te-player__sound { display: flex; align-items: center; gap: 8px; flex: none; }
/* İlerleme ve ses düzeyi: 2px çizgi, dolu kısım açık renk (keskin geçiş, gradyan görünümü yok), kare tutamaç */
.te-player__range {
  --p: 0%;
  height: 28px;
  margin: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}
.te-player__seek { flex: 1; min-width: 48px; }
.te-player__vol { flex: none; width: 84px; }
.te-player__range::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(to right, var(--canvas) var(--p), rgba(246, 248, 247, 0.22) var(--p));
}
.te-player__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  margin-top: -4px;
  border: 0;
  border-radius: 0;
  background: var(--canvas);
}
.te-player__range::-moz-range-track { height: 2px; background: rgba(246, 248, 247, 0.22); }
.te-player__range::-moz-range-progress { height: 2px; background: var(--canvas); }
.te-player__range::-moz-range-thumb { width: 10px; height: 10px; border: 0; border-radius: 0; background: var(--canvas); }
.te-player :focus-visible { outline: 2px solid var(--canvas); outline-offset: 2px; }
@media (max-width: 600px) {
  .te-player { gap: 8px; }
  .te-player__vol, .te-player__pct { display: none; }     /* telefonda ses tuşları var; ilerleme çubuğuna yer kalsın */
  .te-player__txt { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }
}

/* ── Ana sayfa ────────────────────────────────────────────────────────── */
/* İkili hero (kullanıcı referansı): solda sayfa kenarına yakın (~%4) başlık + açıklama +
   düğmeler, sağda karşılama filmi 3:2 (1440x960) genişliğin %59'u, sayfanın sağ kenarına kadar.
   Başlık metin sütununun genişliğine göre ölçeklenir (cqi).
   ≤900px: metin üstte, film altta (tablette 3:2, ≤600px kare sürüm). */
.te-hero {
  display: grid;
  grid-template-columns: minmax(0, 41fr) minmax(0, 59fr);
  align-items: center;
}
.te-hero__text {
  container-type: inline-size;
  padding-left: clamp(var(--gutter), 4.1vw, 96px);
  padding-right: clamp(24px, 3vw, 64px);
}
/* 15.2cqi: "ışıkla görünür" (6.0em) sığar, "Bina cephelerini" (7.1em) sığmaz →
   Bina / cephelerini / ışıkla görünür / kılın. (dengeleme yok, satırlar sabit) */
.te-hero__title {
  font-size: clamp(40px, 5.4vw, 96px);
  font-size: clamp(40px, 15.2cqi, 120px);
  font-weight: var(--w-display);
  line-height: 1.0;
  letter-spacing: -0.04em;
}
.te-hero__lead {
  margin-top: var(--s33);
  font-size: var(--text-subheading);
  line-height: 1.45;
  color: var(--muted);
  max-width: 36ch;
  text-wrap: pretty;
}
.te-hero .te-actions { margin-top: var(--s33); }
.te-hero__media {
  align-self: stretch;          /* header'ın hemen altından hero'nun sonuna kadar */
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--carbon);
}
.te-hero__frame {
  position: relative;
  flex: 1 0 auto;               /* metin uzunsa çerçeve uzar, film biraz kırpılır */
  width: 100%;
  aspect-ratio: 3 / 2;
  max-height: 82vh;
  overflow: hidden;
}
.te-hero__frame .te-video { position: absolute; inset: 0; }
@media (max-width: 900px) {
  .te-hero { grid-template-columns: 1fr; }
  .te-hero__text { padding: var(--s66) var(--gutter) var(--s33); }
  .te-hero__title { font-size: clamp(36px, 11.5cqi, 72px); }
  .te-hero__frame { max-height: none; }
}
@media (max-width: 600px) { .te-hero__frame { aspect-ratio: 1 / 1; } }

/* Geniş ekran (tüm videolarda; tam ekran değil): video + çubuk tarayıcı penceresini kaplar,
   sayfanın üstünde durur; film oranı korunur (contain). "normal ekran" ya da Esc ile döner. */
.te-band__stage.is-wide,
.te-hero__media.is-wide {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  flex-direction: column;
  background: var(--carbon);
}
.is-wide > .te-band__frame,
.is-wide > .te-hero__frame {
  flex: 1 1 auto;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  aspect-ratio: auto;
}
.is-wide > .te-band__frame .te-video { position: absolute; inset: 0; }
.is-wide .te-video { object-fit: contain; }
.is-wide > .te-player { flex: none; }
.te-wide-open { overflow: hidden; }

.te-section { padding-block: var(--s66); }
.te-section + .te-section { border-top: 1px solid var(--steel); }
.te-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s15) var(--s33);
  flex-wrap: wrap;
  margin-bottom: var(--s33);
}
.te-section__head h2 { font-size: var(--text-heading-lg); font-weight: var(--w-heading); line-height: 1.11; letter-spacing: -0.012em; margin-top: 10px; }
.te-section__head p { color: var(--muted); max-width: 52ch; margin-top: 10px; }

/* Işık dili tablosu (sistem → etki → kullanım) */
.te-rows { border-top: 1px solid var(--ink); }
.te-row {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 4fr) minmax(0, 4fr) auto;
  gap: var(--s15) var(--s33);
  align-items: baseline;
  padding: var(--s22) 0;
  border-bottom: 1px solid var(--steel);
  color: inherit;
  text-decoration: none;
}
.te-row:hover { text-decoration: none; background: var(--paper); }
.te-row__name { font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.1; }
.te-row__name small { display: block; margin-top: 6px; color: var(--muted); text-transform: lowercase; }
.te-row__cell { font-size: 15px; color: var(--muted); }
.te-row__cell b { display: block; font-weight: var(--w-text); color: var(--ink); font-size: var(--text-caption); text-transform: lowercase; margin-bottom: 4px; }
.te-row__go { font-size: 22px; font-weight: var(--w-text); padding-right: 6px; }
@media (max-width: 860px) {
  .te-row { grid-template-columns: 1fr auto; }
  .te-row__cell { grid-column: 1; }
  .te-row__go { grid-column: 2; grid-row: 1; }
}

/* Rehber listesi */
.te-list { border-top: 1px solid var(--ink); }
.te-list__item {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 7fr) auto;
  gap: var(--s15) var(--s33);
  align-items: baseline;
  padding: var(--s22) 0 var(--s22);
  border-bottom: 1px solid var(--steel);
  color: inherit;
  text-decoration: none;
}
.te-list__item:hover { text-decoration: none; background: var(--paper); }
.te-list__meta { font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; }
.te-list__title { font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.15; }
.te-list__desc { margin-top: 8px; font-size: 15px; color: var(--muted); max-width: 70ch; }
.te-list__go { font-size: 22px; font-weight: var(--w-text); padding-right: 6px; }
@media (max-width: 760px) {
  .te-list__item { grid-template-columns: 1fr auto; }
  .te-list__meta { grid-column: 1 / -1; }
}

/* ── Proje kartları: 3:2 fotoğraf, altında ad (solda) + konum (sağda) ────
   Izgara ve gövde düzeni ürün kartlarıyla ortak (yukarıda). Ana sayfa 2,
   /projelerimiz/ 3 sütun. */
.te-projects,
.projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.projects-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.project-card-wrap { min-width: 0; }
.project-card-wrap.paged-out { display: none; }
.card--project { height: 100%; gap: 14px; background: none; }
.card--project .card__body { flex: none; padding: 0; }
.card--project .card__title {
  order: -1;
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: var(--w-display);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.card--project .card__image {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--carbon);
}
.card--project .card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms cubic-bezier(.2,.7,.2,1);
}
.card--project:hover .card__image img { transform: scale(1.03); }
@media (max-width: 980px) { .projects-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .te-projects, .projects-grid, .projects-grid--3 { grid-template-columns: 1fr; } }

.editorial-load-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s15);
  margin-top: var(--s33);
  font-size: var(--text-caption);
  color: var(--muted);
}
.editorial-load-more [hidden] { display: none; }

/* ── SEO özet blokları ────────────────────────────────────────────────── */
.seo-brief { padding-block: var(--s66); }
.seo-brief--compact { padding: 0 0 var(--s33); }
.seo-brief__inner {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(150px, 3fr) 9fr;
  column-gap: var(--s33);
  row-gap: 10px;
}
.seo-brief__inner > .section-label { grid-row: 1 / span 2; padding-top: 6px; }
.seo-brief__title { grid-column: 2; font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.15; }
.seo-brief__text { grid-column: 2; font-size: 16px; line-height: 1.6; color: var(--muted); max-width: 72ch; }
.seo-brief__text a { color: var(--ink); }
@media (max-width: 760px) {
  .seo-brief__inner { grid-template-columns: 1fr; }
  .seo-brief__inner > * { grid-column: 1 !important; grid-row: auto !important; }
}

/* Karar tablosu ve teknik tablo */
.seo-decision__table-wrap { overflow-x: auto; border-top: 1px solid var(--ink); }
.seo-decision__table,
.te-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}
.seo-decision__table th,
.seo-decision__table td,
.te-spec-table th,
.te-spec-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 12px 12px 0;
  border-bottom: 1px solid var(--steel);
  font-weight: var(--w-text);
}
.seo-decision__table thead th {
  font-size: var(--text-caption);
  color: var(--muted);
  text-transform: lowercase;
}
.seo-decision__table tbody th a { text-decoration: none; border-bottom: 1px solid currentColor; }
.seo-decision__note { margin-top: var(--s22); font-size: 15px; color: var(--muted); max-width: 72ch; }
.te-spec-table { border-top: 1px solid var(--ink); }
.te-spec-table th { width: 40%; color: var(--muted); }
.te-spec-table td { color: var(--ink); }

/* ── Ürün detayı ──────────────────────────────────────────────────────── */
.te-product-hero { padding-block: var(--s33) var(--s66); }
.te-product-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--s33) clamp(33px, 5vw, 66px);
  align-items: start;
}
.te-product-hero__media,
.product-feature {
  position: relative;
  aspect-ratio: 1 / 1;
  margin: 0;
  overflow: hidden;
}
.te-product-hero__media img,
.product-feature img { width: 100%; height: 100%; object-fit: contain; }
.te-product-hero__media figcaption {
  position: absolute; left: 15px; bottom: 12px;
  font-size: var(--text-caption); color: var(--muted); text-transform: lowercase;
}
.te-product-hero__info { padding-top: var(--s15); display: grid; gap: var(--s22); }
.te-product-hero__info h1 {
  font-size: clamp(40px, 4.6vw, 64px);
  font-weight: var(--w-display);
  line-height: 1.02;
  letter-spacing: -0.022em;
}
.te-product-hero__info p { font-size: 16px; line-height: 1.6; color: var(--ink); }
.te-product-hero__info p + p { color: var(--muted); }
.te-keyspecs { border-top: 1px solid var(--ink); }
.te-keyspecs div {
  display: grid; grid-template-columns: 40% 1fr; gap: 12px;
  padding: 9px 0; border-bottom: 1px solid var(--steel);
  font-size: 14px; font-variant-numeric: tabular-nums;
}
.te-keyspecs dt { color: var(--muted); text-transform: lowercase; }
.te-keyspecs dd { color: var(--ink); }
/* Ürün H1'inin uygulama satırı (SEO O-01): model adı baskın kalır, kullanım bağlamı ikinci satırda */
.te-h1-sub {
  display: block;
  margin-top: 0.45em;
  font-size: clamp(17px, 1.45vw, 21px);
  font-weight: var(--w-heading);
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--muted);
}
@media (max-width: 900px) {
  .te-product-hero__grid { grid-template-columns: 1fr; }
  .te-product-hero__info { padding-top: 0; }
}

/* Teknik sekmeler */
.spec-tabs__nav {
  display: flex;
  gap: var(--s22);
  border-bottom: 1px solid var(--steel);
  margin-bottom: var(--s22);
}
.spec-tabs__btn {
  position: relative;
  padding: 10px 0 12px;
  font-size: 15px;
  text-transform: lowercase;
  color: var(--muted);
}
.spec-tabs__btn[aria-selected='true'] { color: var(--ink); }
.spec-tabs__btn[aria-selected='true']::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--ink);
}
.spec-tabs__panel[hidden] { display: none; }
.te-table-wrap { overflow-x: auto; }
.spec-tabs .te-spec-table { border-top: 0; }
.section-header:last-child { margin-bottom: 0; }
.spec-tabs__docs { display: grid; gap: 0; border-top: 1px solid var(--steel); border-left: 1px solid var(--steel); }
.spec-tabs__docs li { background: var(--canvas); }
.spec-tabs__docs a {
  display: flex; align-items: center; gap: 14px;
  padding: 16px var(--s15);
  text-decoration: none;
  font-size: 16px;
}
.spec-tabs__docs a::after { content: '↓'; margin-left: auto; font-weight: var(--w-text); font-size: 20px; }
.spec-tabs__docs a:hover { background: var(--paper); }
.spec-tabs__docs svg { width: 22px; height: 22px; flex: none; stroke-width: 1.2; }

/* SSS */
.faq-list { border-top: 1px solid var(--ink); }
.faq-item { border-bottom: 1px solid var(--steel); }
.faq-item summary {
  display: flex;
  justify-content: space-between;
  gap: var(--s22);
  padding: 18px 0;
  font-size: var(--text-subheading);
  font-weight: var(--w-heading);
  line-height: 1.3;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-weight: var(--w-text); font-size: 28px; line-height: 0.8; flex: none; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 0 0 var(--s22); max-width: 72ch; color: var(--muted); line-height: 1.6; }

/* ── Seri sayfası: model ayrıntı listesi ─────────────────────────────── */
.product-alternating { border-top: 1px solid var(--ink); }
.product-alternating__item {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 5fr) minmax(0, 4fr);
  column-gap: var(--s33);
  row-gap: 6px;
  padding: var(--s22) 0 var(--s33);
  border-bottom: 1px solid var(--steel);
}
.product-alternating__media { display: none; }
.product-alternating__body { display: contents; }
.product-alternating__label { grid-column: 1; grid-row: 1; color: var(--muted); }
.product-alternating__title { grid-column: 1; grid-row: 2; font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.12; }
.product-alternating__link { grid-column: 1; grid-row: 3; align-self: start; justify-self: start; margin-top: 12px; }
.product-alternating__desc { grid-column: 2; grid-row: 1 / span 3; font-size: 15px; line-height: 1.6; color: var(--muted); }
.product-alternating__specs {
  grid-column: 3; grid-row: 1 / span 3; align-self: start;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}
.product-alternating__spec {
  padding: 7px 10px 7px 0;
  border-bottom: 1px solid var(--steel);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 900px) {
  .product-alternating__item { grid-template-columns: 1fr; }
  .product-alternating__body > * { grid-column: 1 !important; grid-row: auto !important; }
  .product-alternating__specs { margin-top: 10px; }
  .product-alternating__link { margin-top: 14px; }
}

/* Seri sayfası: gerçek uygulama fotoğrafı */
.series-banner { position: relative; aspect-ratio: 21 / 9; overflow: hidden; background: var(--carbon); }
.series-banner img { width: 100%; height: 100%; object-fit: cover; }
.series-banner__caption {
  position: absolute; left: 0; bottom: 0;
  padding: 10px 15px;
  font-size: var(--text-caption); color: var(--canvas); text-transform: lowercase;
  background: rgba(15, 14, 18, 0.78);
}
@media (max-width: 640px) { .series-banner { aspect-ratio: 4 / 3; } }

/* ── Ürün hub (urunlerimiz): seri başlığı → video bandı → ürün rafı ──── */
.te-series { border-top: 1px solid var(--steel); }
.te-series__head {
  display: grid;
  grid-template-columns: minmax(150px, 3fr) 6fr 3fr;
  column-gap: var(--s33);
  row-gap: 10px;
  align-items: start;
  padding-block: var(--s66) var(--s33);
}
.te-series__head .te-label { padding-top: 14px; }
.te-series__head h2 { font-size: clamp(44px, 5.4vw, 76px); font-weight: var(--w-display); line-height: 1.02; letter-spacing: -0.03em; }
.te-series__head p:not(.te-label) { margin-top: 12px; font-size: 16px; color: var(--muted); max-width: 48ch; }
.te-series__head .te-link { justify-self: end; margin-top: 18px; }
@media (max-width: 980px) {
  .te-series__head { grid-template-columns: 1fr; }
  .te-series__head .te-label { padding-top: 0; }
  .te-series__head .te-link { justify-self: start; margin-top: 4px; }
}

/* ── Proje detayı ─────────────────────────────────────────────────────── */
.case-main {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--s33) clamp(33px, 4.5vw, 66px);
  align-items: start;
}
.case-carousel {
  position: relative;
  background: var(--carbon);
}
.case-carousel__track { position: relative; aspect-ratio: 1 / 1; overflow: hidden; }
.case-carousel__slide { position: absolute; inset: 0; display: none; }
.case-carousel__slide.is-active,
.case-carousel__slide.is-leaving { display: block; }
.case-carousel__slide.is-leaving { z-index: 0; }
.case-carousel__slide.is-active { z-index: 1; }
.case-carousel__slide.is-entering { animation: te-fade 600ms ease both; }
.case-carousel__slide img { width: 100%; height: 100%; object-fit: cover; }
.case-carousel__caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 10px 15px;
  font-size: var(--text-caption); color: var(--canvas); text-transform: lowercase;
  background: rgba(15, 14, 18, 0.78);
}
.case-carousel__dots {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 10px 15px 12px;
  background: var(--carbon);
}
.case-carousel__dots:empty { display: none; }
.case-carousel__dot { width: 26px; height: 22px; position: relative; }
.case-carousel__dot::before {
  content: ''; position: absolute; left: 0; right: 0; top: 10px; height: 2px; background: var(--rule-dark);
}
.case-carousel__dot.is-active::before { background: var(--canvas); }
.case-carousel__dot:hover::before { background: var(--graphite); }
/* Ürün galerisi (ürün detayı üst bölümü): proje galerisinin açık zeminli, kırpmasız sürümü. Görseller şeffaf
   olduğu için slaytlar zemin rengiyle örtülür; aksi hâlde geçişte eski görsel yenisinin arkasından görünür. */
.case-carousel--product { background: transparent; }
.case-carousel--product .case-carousel__track { aspect-ratio: 4 / 3; }
.case-carousel--product .case-carousel__slide { background: var(--canvas); }
.case-carousel--product .case-carousel__slide img { object-fit: contain; }
.case-carousel--product .case-carousel__dots { background: transparent; padding: 12px 0 0; }
.case-carousel--product .case-carousel__dot::before { background: var(--steel); }
.case-carousel--product .case-carousel__dot.is-active::before { background: var(--ink); }
.case-carousel--product .case-carousel__dot:hover::before { background: var(--graphite); }
@keyframes te-fade { from { opacity: 0; } to { opacity: 1; } }

.case-info { border-top: 1px solid var(--ink); }
.case-info__title { font-size: var(--text-caption); font-weight: var(--w-text); text-transform: lowercase; padding: 12px 0; border-bottom: 1px solid var(--steel); display: flex; align-items: center; gap: 8px; }
.case-info__title::before { content: ''; width: 7px; height: 7px; background: currentColor; }
.case-info__row {
  display: grid;
  grid-template-columns: 38% 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--steel);
}
.case-info__label { font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; padding-top: 2px; }
.case-info__value { font-size: 15px; line-height: 1.45; }
.case-info__products { display: flex; flex-wrap: wrap; gap: 8px; }
@media (max-width: 900px) { .case-main { grid-template-columns: 1fr; } }

.te-chips { display: flex; flex-wrap: wrap; gap: 8px; }

.project-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--s15);
  align-items: center;
  margin-top: var(--s33);
  padding-top: var(--s22);
  border-top: 1px solid var(--ink);
}
.project-nav:first-child { margin-top: 0; }
main > section.section:has(> .container > .project-nav:only-child) { padding-block: 0 var(--s66); border-top: 0; }
.project-nav > :last-child { justify-self: end; }
.project-nav > :first-child { justify-self: start; }
.project-nav .btn { border-color: transparent; padding-inline: 0; }
.project-nav .btn:hover { background: transparent; color: var(--ink); text-decoration: underline; }
.project-nav .btn--secondary { border-color: var(--ink); padding-inline: 14px; }
.project-nav .btn--secondary:hover { background: var(--ink); color: var(--canvas); text-decoration: none; }
@media (max-width: 600px) {
  .project-nav { grid-template-columns: 1fr 1fr; }
  .project-nav .btn--secondary { grid-column: 1 / -1; grid-row: 2; justify-self: start; }
}

/* ── Tanıtım / vurgu blokları ─────────────────────────────────────────── */
.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--s33) clamp(33px, 5vw, 66px);
  align-items: start;
}
.about-text { display: grid; gap: var(--s15); justify-items: start; }
.about-text .section-title { margin-bottom: 6px; }
.about-text p { font-size: 16px; line-height: 1.65; max-width: 66ch; }
.about-text p + p { color: var(--muted); }
.about-text .te-actions { margin-top: var(--s15); }
.about-highlight {
  background: var(--carbon);
  color: var(--canvas);
  padding: var(--s33);
  display: grid;
  gap: var(--s15);
}
.about-highlight__label { color: var(--graphite); }
.about-highlight__title { font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.15; }
.about-highlight__text { font-size: 15px; line-height: 1.6; color: var(--graphite); }
.te-stats { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--rule-dark); margin-top: 6px; }
.te-stats div { padding-top: var(--s15); }
.te-stats strong { display: block; font-size: 56px; line-height: 1; font-weight: var(--w-display); letter-spacing: -0.03em; }
.te-stats span { font-size: var(--text-caption); color: var(--graphite); text-transform: lowercase; }
@media (max-width: 900px) { .about-intro { grid-template-columns: 1fr; } }

.values-grid { margin-top: var(--s66); }
.section-header + .values-grid,
.section-header + .grid { margin-top: 0; }

/* ── İletişim ─────────────────────────────────────────────────────────── */
.contact-intro {
  display: grid;
  grid-template-columns: minmax(150px, 3fr) 9fr;
  column-gap: var(--s33);
  margin-bottom: var(--s33);
}
.contact-intro__text { grid-column: 2; font-size: 16px; line-height: 1.65; max-width: 70ch; }
.contact-intro__text + .contact-intro__text { margin-top: var(--s15); color: var(--muted); }
.contact-cards-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.contact-card { padding: var(--s22) var(--s22) var(--s33); display: flex; flex-direction: column; gap: 8px; }
.contact-card__icon { width: 26px; height: 26px; margin-bottom: 10px; }
.contact-card__icon svg { width: 26px; height: 26px; stroke-width: 1.2; }
.contact-card__label { font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; }
.contact-card__value { font-size: var(--text-subheading); line-height: 1.35; }
.contact-card__value a { text-decoration: none; }
.contact-card__value a:hover { text-decoration: underline; }
.contact-card__action { margin-top: auto; align-self: flex-start; }
.contact-card .contact-card__value + .contact-card__action { margin-top: var(--s22); }
.contact-map { margin-top: var(--s33); border: 1px solid var(--steel); background: var(--paper); }
.contact-map iframe { display: block; width: 100%; height: 440px; border: 0; filter: grayscale(1) contrast(1.05); }
@media (max-width: 860px) {
  .contact-intro { grid-template-columns: 1fr; }
  .contact-intro__text { grid-column: 1; }
  .contact-cards-grid { grid-template-columns: 1fr; }
  .contact-map iframe { height: 320px; }
}

/* ── CTA bandı ────────────────────────────────────────────────────────── */
.cta-banner {
  padding-block: var(--s66);
  border-top: 1px solid var(--ink);
}
main > section + .cta-banner,
main > .te-band + .cta-banner { border-top: 1px solid var(--ink); }
.cta-banner__grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--s33);
  align-items: end;
}
.cta-banner__title {
  font-size: clamp(36px, 4.4vw, 60px);
  font-weight: var(--w-display);
  line-height: 1.03;
  letter-spacing: -0.022em;
  margin-top: var(--s22);
  max-width: 15ch;
}
.cta-banner__subtitle { margin-top: var(--s22); font-size: 16px; color: var(--muted); max-width: 50ch; }
.cta-banner__side { display: grid; gap: var(--s22); justify-items: start; }
.cta-banner__phone { font-size: var(--text-heading); font-weight: var(--w-heading); line-height: 1.2; text-decoration: none; font-variant-numeric: tabular-nums; }
.cta-banner__phone small { display: block; font-size: var(--text-caption); color: var(--muted); text-transform: lowercase; }
.cta-banner__phone:hover { text-decoration: underline; }
.cta-banner__actions { display: flex; flex-wrap: wrap; gap: var(--s15) var(--s22); align-items: center; }
@media (max-width: 820px) { .cta-banner__grid { grid-template-columns: 1fr; } }

/* ── Footer ───────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--carbon);
  color: var(--canvas);
  font-size: 15px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 4fr) repeat(3, minmax(0, 2.6fr));
  gap: var(--s33);
  padding-block: var(--s66) var(--s33);
}
.footer-wordmark {
  display: flex; flex-direction: column;
  font-size: 30px; line-height: 1.04; font-weight: var(--w-display); letter-spacing: -0.02em;
  text-transform: lowercase; text-decoration: none; color: var(--canvas);
}
.footer-wordmark:hover { text-decoration: none; }
.footer-desc { margin-top: var(--s22); color: var(--graphite); max-width: 36ch; font-size: 14px; line-height: 1.55; }
.footer-col__title { font-size: var(--text-caption); color: var(--graphite); text-transform: lowercase; font-weight: var(--w-text); margin-bottom: 12px; }
.footer-links { display: grid; gap: 6px; }
.footer-links a { text-decoration: none; text-transform: lowercase; }
.footer-links a:hover { text-decoration: underline; }
.footer-contact { display: grid; gap: 12px; font-style: normal; }
.footer-contact span { display: block; font-size: var(--text-caption); color: var(--graphite); text-transform: lowercase; }
.footer-contact a { text-decoration: none; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.footer-contact a:hover { text-decoration: underline; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s15) var(--s33);
  padding-block: var(--s22) var(--s33);
  border-top: 1px solid var(--rule-dark);
  font-size: var(--text-caption);
  color: var(--graphite);
}
.footer-oliptek { display: flex; align-items: center; gap: var(--s15); }
.footer-oliptek img { width: 92px; height: auto; }
.footer-oliptek a { color: var(--canvas); }
.footer-micro { max-width: 300px; font-size: 10px; line-height: 1.35; color: var(--graphite); text-transform: lowercase; }
@media (max-width: 980px) { .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }

/* ── Sayfa başı düğmesi ───────────────────────────────────────────────── */
.scroll-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 30;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--canvas);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 200ms ease, transform 200ms ease;
}
.scroll-top svg { width: 18px; height: 18px; stroke-width: 1.4; }
.scroll-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

/* Kullanılmayan modal (dosyada duruyor) kapalıyken tıklamaları yutmasın */
.modal[hidden] { display: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .mobile-menu, .te-band, .cta-banner, .site-footer, .scroll-top { display: none !important; }
  body { background: #fff; }
}