/* ==========================================================================
   Çalışkan Group — Ana Stil Dosyası
   Tüm bileşenler static/css/variables.css içindeki değişkenleri kullanır.

   Sistem dili: dikdörtgen formlar + tek bir kesik köşe motifi (corner-cut),
   çizim/imar planı hissi veren contour.svg dokusu, ve eyebrow/kart-grid
   yerine yatay şeritler halinde editoryal bir düzen.
   ========================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }
h1, h2, h3, h4, h5, p { margin: 0; }
::selection { background: var(--color-primary); color: var(--color-white); }

body.no-scroll { overflow: hidden; }

/* ---------- Typography ---------- */
h1, h2, h3, h4, .font-heading {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.08;
  color: var(--color-primary-dark);
}
.lead { font-size: 18px; line-height: 1.7; color: var(--color-ink-soft); max-width: 62ch; }

/* Standalone heading-size utility, for a title inside an already-framed
   layout (e.g. one column of a split) that does not need a full section head. */
.section__title { font-size: clamp(30px, 3.6vw, 46px); }

/* A giant, low-contrast numeral used as a graphic anchor rather than a label. */
.ghost-figure {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 0.8;
  color: var(--color-primary);
  opacity: 0.07;
  letter-spacing: -0.04em;
  pointer-events: none;
  user-select: none;
}

/* ---------- Contour texture (signature motif) ---------- */
.texture {
  position: absolute;
  inset: 0;
  pointer-events: none;
  -webkit-mask-image: url("../img/contour.svg");
  mask-image: url("../img/contour.svg");
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: cover;
  mask-size: cover;
  -webkit-mask-position: center;
  mask-position: center;
  background: var(--color-primary);
  opacity: 0.06;
}
.section--dark .texture,
.cta-banner .texture { background: var(--color-accent-light); opacity: 0.08; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 28px;
}
.section { padding: 128px 0; }
.section--sm { padding: 80px 0; }
.section--alt { background: var(--color-paper-alt); }
.section--dark {
  background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-bg-alt) 100%);
  color: var(--color-dark-text);
  position: relative;
  overflow: hidden;
}
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--color-white); }

/* Asymmetric section head: heading and lede sit in two unequal columns,
   left-aligned. Replaces the centered eyebrow+title+description scaffold. */
.section-head {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 60px;
  align-items: end;
  padding-bottom: 36px;
  margin-bottom: 64px;
  border-bottom: var(--rule);
}
.section--dark .section-head { border-color: var(--color-dark-border); }
.section-head__title { font-size: clamp(32px, 4vw, 52px); }
.section-head__desc { font-size: 16px; line-height: 1.7; color: var(--color-ink-soft); padding-bottom: 4px; }
.section--dark .section-head__desc { color: var(--color-dark-text-soft); }
.section-head--tight { margin-bottom: 44px; }

@media (max-width: 820px) {
  .section-head { grid-template-columns: 1fr; gap: 18px; align-items: start; }
}

@media (max-width: 768px) {
  .section { padding: 84px 0; }
  .section--sm { padding: 60px 0; }
  .container { padding: 0 20px; }
}

/* ---------- Buttons ---------- */
.btn {
  --cut: var(--corner-cut-sm);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  transition: color var(--dur-fast) var(--ease-premium), border-color var(--dur-fast) var(--ease-premium);
  white-space: nowrap;
}
.btn svg, .btn i { width: 16px; height: 16px; flex-shrink: 0; position: relative; z-index: 1; }
.btn span, .btn { }
.btn::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  transform: translateX(-100%);
  transition: transform var(--dur-med) var(--ease-premium);
}
.btn:hover::before { transform: translateX(0); }

.btn--primary { background: var(--color-primary); color: var(--color-white); }
.btn--primary::before { background: var(--color-primary-dark); }

.btn--accent { background: var(--color-accent); color: var(--color-dark-bg); }
.btn--accent::before { background: var(--color-accent-light); }

.btn--outline-light { color: var(--color-white); border-color: rgba(255,255,255,0.4); }
.btn--outline-light::before { background: rgba(255,255,255,0.14); }
.btn--outline-light:hover { border-color: #fff; }

.btn--outline-dark { color: var(--color-ink); border-color: var(--color-border); }
.btn--outline-dark::before { background: var(--color-primary); }
.btn--outline-dark:hover { color: var(--color-white); border-color: var(--color-primary); }

.btn--text {
  padding: 0;
  clip-path: none;
  gap: 8px;
  color: var(--color-primary);
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  transition: gap var(--dur-fast) var(--ease-premium), color var(--dur-fast) var(--ease-premium);
}
.btn--text::before { display: none; }
.btn--text:hover { color: var(--color-accent-dark); gap: 14px; }
.section--dark .btn--text { color: var(--color-accent-light); }

/* ---------- Site Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  transition: background-color var(--dur-med) var(--ease-premium),
              box-shadow var(--dur-med) var(--ease-premium),
              border-color var(--dur-med) var(--ease-premium);
  border-bottom: 1px solid transparent;
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-header__logo img {
  height: 40px; width: auto; transform-origin: left center;
  filter: brightness(0) invert(1);
  transition: transform var(--dur-med) var(--ease-premium), filter var(--dur-med) var(--ease-premium);
}

.site-header__nav { display: flex; align-items: center; gap: 40px; }
.site-header__nav a {
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-white);
  position: relative;
  padding: 6px 0;
}
.site-header__nav a::after {
  content: "";
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1.5px; background: var(--color-accent-light);
  transition: right var(--dur-fast) var(--ease-premium);
}
.site-header__nav a:hover::after, .site-header__nav a.is-active::after { right: 0; }
.site-header__nav a.is-active { color: var(--color-accent-light); }

.site-header__actions { display: flex; align-items: center; gap: 22px; }
.site-header__phone { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14.5px; color: var(--color-white); }
.site-header__phone i { color: var(--color-accent-light); }

.lang-switch { display: flex; align-items: center; gap: 7px; }
.lang-switch__opt {
  background: none; border: none; padding: 4px 1px;
  font-family: var(--font-heading);
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.03em;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-premium);
}
.lang-switch__opt:hover { color: var(--color-white); }
.lang-switch__opt.is-active { color: var(--color-accent-light); cursor: default; }
.lang-switch__opt:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
.lang-switch__divider { color: rgba(255,255,255,0.3); font-size: 12px; }
.site-header.is-solid .lang-switch__opt { color: var(--color-ink-soft); }
.site-header.is-solid .lang-switch__opt:hover { color: var(--color-ink); }
.site-header.is-solid .lang-switch__opt.is-active { color: var(--color-primary); }
.site-header.is-solid .lang-switch__divider { color: var(--color-border); }

@media (max-width: 640px) {
  .site-header__actions .lang-switch { display: none; }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--color-white); transition: all var(--dur-fast) var(--ease-premium); }

/* Solid state: scrolled, or on non-home pages */
.site-header.is-solid {
  background: rgba(248, 247, 242, 0.94);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px -20px rgba(13,23,18,0.4);
  border-color: var(--color-border);
}
.site-header.is-solid .site-header__logo img { transform: scale(0.86); filter: none; }
.site-header.is-solid .site-header__nav a,
.site-header.is-solid .site-header__phone { color: var(--color-ink); }
.site-header.is-solid .site-header__nav a.is-active { color: var(--color-primary); }
.site-header.is-solid .site-header__phone i { color: var(--color-primary); }
.site-header.is-solid .nav-toggle span { background: var(--color-ink); }
.site-header.is-solid .btn--outline-light { border-color: var(--color-border); color: var(--color-ink); }
.site-header.is-solid .btn--outline-light::before { background: var(--color-primary); }
.site-header.is-solid .btn--outline-light:hover { color: var(--color-white); border-color: var(--color-primary); }

@media (max-width: 1024px) {
  .site-header__nav { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 560px) {
  .site-header__phone span { display: none; }
}

/* Mobile nav panel */
.mobile-nav {
  position: fixed; inset: 0; z-index: 200;
  background: var(--color-dark-bg);
  display: flex; flex-direction: column;
  padding: 26px 28px 40px;
  transform: translateY(-100%);
  transition: transform var(--dur-med) var(--ease-premium);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 50px; }
.mobile-nav__top img { height: 36px; }
.mobile-nav__close { background: none; border: none; color: var(--color-white); font-size: 28px; line-height: 1; padding: 6px; }
.mobile-nav__links { display: flex; flex-direction: column; gap: 6px; }
.mobile-nav__links a {
  font-family: var(--font-heading);
  font-size: 30px;
  color: var(--color-white);
  padding: 14px 0;
  border-bottom: 1px solid var(--color-dark-border);
}
.mobile-nav__foot { margin-top: auto; padding-top: 30px; display: flex; flex-direction: column; gap: 16px; color: var(--color-dark-text-soft); }
.mobile-nav__foot .lang-switch__opt { font-size: 15px; padding: 6px 2px; }
.mobile-nav__foot .lang-switch__divider { font-size: 14px; }
.mobile-nav__foot a { color: var(--color-dark-text); font-weight: 600; }
.mobile-nav__social { display: flex; gap: 14px; }
.mobile-nav__social a {
  width: 38px; height: 38px;
  border: 1px solid var(--color-dark-border);
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--color-dark-bg);
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media video, .hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.2s var(--ease-premium);
}
.hero__media video.is-active, .hero__media img.is-active { opacity: 1; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: var(--color-dark-bg);
  opacity: 0;
  transition: opacity 1.2s var(--ease-premium);
}
.hero__overlay.is-active { opacity: var(--overlay-opacity, 0.6); }
.hero__content {
  position: relative; z-index: 2;
  width: 100%;
  padding: calc(var(--header-height) + 40px) 0 110px;
  color: var(--color-white);
}
.hero__kicker {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.62);
}
.hero__kicker strong { font-family: var(--font-heading); font-size: 13px; color: var(--color-accent-light); font-weight: 600; letter-spacing: 0.02em; text-transform: none; }
.hero__kicker::before { content: ""; width: 28px; height: 1px; background: rgba(255,255,255,0.4); }
.hero__slides { display: grid; }
.hero__slide-text {
  grid-area: 1 / 1;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-slow) var(--ease-premium);
}
.hero__slide-text.is-active { opacity: 1; pointer-events: auto; }
.hero__title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-white);
  max-width: 460px;
  margin-top: 20px;
}
.hero__title em { color: var(--color-accent-light); font-style: normal; }
.hero__subtitle { margin-top: 16px; max-width: 400px; font-size: 14.5px; line-height: 1.7; color: rgba(255,255,255,0.68); }
.hero__actions { margin-top: 30px; display: flex; gap: 18px; flex-wrap: wrap; }

.hero__scroll {
  position: absolute; right: 28px; bottom: 34px; z-index: 2;
  display: flex; align-items: center; gap: 12px;
  color: rgba(255,255,255,0.7);
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
}
.hero__scroll-line { width: 1px; height: 46px; background: rgba(255,255,255,0.35); position: relative; overflow: hidden; }
.hero__scroll-line::after {
  content: ""; position: absolute; top: -100%; left: 0; width: 100%; height: 100%;
  background: var(--color-accent-light);
  animation: scrollLine 2.2s var(--ease-premium) infinite;
}
@keyframes scrollLine { 0% { top: -100%; } 60% { top: 100%; } 100% { top: 100%; } }

.hero__rail {
  position: absolute; right: 28px; top: calc(var(--header-height) + 56px); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.hero__nav-btn {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: rgba(255,255,255,0.75);
  font-size: 11px;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-premium), color var(--dur-fast) var(--ease-premium), background var(--dur-fast) var(--ease-premium);
}
.hero__nav-btn:hover { border-color: var(--color-accent-light); color: var(--color-accent-light); background: rgba(255,255,255,0.06); }
.hero__nav-btn:focus-visible { outline: 2px solid var(--color-accent-light); outline-offset: 2px; }
.hero__dots { display: flex; flex-direction: column; gap: 10px; }
.hero__dots button { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.35); border: none; padding: 0; cursor: pointer; transition: background var(--dur-fast); }
.hero__dots button.is-active { background: var(--color-accent-light); }

@media (max-width: 768px) {
  .hero { min-height: 92vh; align-items: flex-end; }
  .hero__content { padding-top: calc(var(--header-height) + 20px); padding-bottom: 100px; }
  .hero__scroll span { display: none; }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  position: relative;
  min-height: 52vh;
  display: flex; align-items: flex-end;
  background: var(--color-dark-bg);
  overflow: hidden;
}
.page-hero img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.5;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(13,23,18,0.5) 0%, rgba(13,23,18,0.88) 100%);
}
.page-hero__content { position: relative; z-index: 2; padding: calc(var(--header-height) + 56px) 0 56px; color: var(--color-white); display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.page-hero__title { font-size: clamp(36px, 5.4vw, 64px); color: var(--color-white); }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: rgba(255,255,255,0.6); padding-bottom: 8px; }
.breadcrumb a:hover { color: var(--color-white); }
.breadcrumb span { color: rgba(255,255,255,0.4); }

@media (max-width: 640px) { .page-hero__content { flex-direction: column; align-items: flex-start; gap: 14px; } .breadcrumb { padding-bottom: 0; } }

/* ---------- About split ---------- */
.about-split { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 80px; align-items: center; }
.about-split__media { position: relative; padding-left: clamp(28px, 4vw, 64px); }
.about-split__media img { position: relative; z-index: 1; box-shadow: var(--shadow-soft); width: 100%; height: 600px; object-fit: cover; }
.about-split__figure {
  position: absolute; z-index: 0;
  left: 0; top: 50%; transform: translateY(-50%);
  font-size: clamp(90px, 11vw, 168px);
  white-space: nowrap;
}
.about-split__body p + p { margin-top: 16px; }
.about-split__facts {
  margin-top: 36px; padding-top: 24px; border-top: var(--rule);
  display: flex; flex-wrap: wrap; gap: 10px 36px;
}
.about-split__facts div { font-size: 14px; color: var(--color-ink-soft); }
.about-split__facts strong { font-family: var(--font-heading); color: var(--color-primary-dark); font-weight: 600; margin-right: 6px; }

@media (max-width: 900px) {
  .about-split { grid-template-columns: 1fr; gap: 48px; }
  .about-split__media { padding-left: 0; }
  .about-split__media img { height: 380px; }
  .about-split__figure { display: none; }
}

/* ---------- Editorial rows (sectors + group companies) ---------- */
.feature-rows { border-top: var(--rule); }
.section--dark .feature-rows { border-color: var(--color-dark-border); }
.feature-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
  padding: 52px 0;
  border-bottom: var(--rule);
}
.section--dark .feature-row { border-color: var(--color-dark-border); }
.feature-row:nth-child(even) { grid-template-columns: 1.1fr 0.9fr; }
.feature-row:nth-child(even) .feature-row__media { order: 2; }
.feature-row:nth-child(even) .feature-row__body { order: 1; }

.feature-row__media { position: relative; overflow: hidden; height: 340px; clip-path: polygon(var(--corner-cut) 0, 100% 0, 100% calc(100% - var(--corner-cut)), calc(100% - var(--corner-cut)) 100%, 0 100%, 0 var(--corner-cut)); }
.feature-row__media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-premium); }
.feature-row:hover .feature-row__media img { transform: scale(1.06); }

.feature-row__title { font-size: clamp(26px, 3vw, 38px); }
.feature-row__desc { margin-top: 16px; font-size: 15.5px; line-height: 1.7; color: var(--color-ink-soft); max-width: 46ch; }
.section--dark .feature-row__desc { color: var(--color-dark-text-soft); }
.feature-row__link {
  margin-top: 26px; display: inline-flex; align-items: center; gap: 10px;
  font-size: 13.5px; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase;
  color: var(--color-primary);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: gap var(--dur-fast) var(--ease-premium), border-color var(--dur-fast) var(--ease-premium);
}
.section--dark .feature-row__link { color: var(--color-accent-light); }
.feature-row:hover .feature-row__link { gap: 16px; border-color: currentColor; }

/* Group-company rows: logo mark + meta line above the title */
.feature-row__logo { height: 34px; margin-bottom: 18px; }
.feature-row__logo img { height: 100%; width: auto; object-fit: contain; }
.feature-row__meta { display: flex; gap: 14px; align-items: center; font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-accent-dark); margin-bottom: 12px; }
.section--dark .feature-row__meta { color: var(--color-accent-light); }
.feature-row__meta span + span { padding-left: 14px; border-left: 1px solid currentColor; opacity: 0.9; }

@media (max-width: 860px) {
  .feature-row, .feature-row:nth-child(even) { grid-template-columns: 1fr; gap: 26px; padding: 40px 0; }
  .feature-row:nth-child(even) .feature-row__media,
  .feature-row:nth-child(even) .feature-row__body { order: initial; }
  .feature-row__media { height: 260px; }
}

/* ---------- Tasarım A: editorial rows, logo standing in for the photo ---------- */
/* Reuses .feature-rows/.feature-row exactly as built for the sectors section
   below; only the media panel changes, via this modifier, from a cover photo
   to a contained logo on a tinted plate. Same row height, same alternating
   rhythm, same confident scale the rest of the site already uses. */
.feature-row__media--logo { display: flex; align-items: center; justify-content: center; background: var(--color-paper-alt); }
.feature-row__media--logo:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.feature-row__media--logo img {
  width: auto; height: auto; max-width: 58%; max-height: 44%;
  object-fit: contain;
  transition: transform var(--dur-slow) var(--ease-premium);
}
.feature-row:hover .feature-row__media--logo img { transform: scale(1.07); }
.feature-row__links { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; margin-top: 26px; }
.feature-row__links .feature-row__link { margin-top: 0; }

/* ---------- Tasarım B: compact directory, anchored by a count numeral ---------- */
/* Structurally distinct from A (full media-panel editorial spreads) and C
   (interactive accordion): a dense, scannable index list, the kind a
   directory page or masthead uses. The one bold move is the oversized count
   numeral it opens on, echoing the same ghost-figure device already used in
   the about-split section, so it reads as the site's own vocabulary rather
   than a new idea grafted on. */
.company-directory { display: grid; grid-template-columns: 0.35fr 1.55fr; gap: 56px; align-items: start; }
.company-directory__figure { position: relative; line-height: 0.78; }
.company-directory__figure .ghost-figure { font-size: clamp(140px, 15vw, 240px); }
.company-directory__figure span {
  display: block; margin-top: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--color-ink-soft);
}
.company-directory__list { border-top: var(--rule); }
.directory-row {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 24px 4px;
  border-bottom: var(--rule);
  transition: background var(--dur-fast) var(--ease-premium);
}
.directory-row:hover { background: var(--color-paper-alt); }
.directory-row__logo { height: 72px; display: flex; align-items: center; }
.directory-row__logo img { max-height: 100%; max-width: 100%; object-fit: contain; }
.directory-row__name { font-family: var(--font-heading); font-weight: 600; font-size: 18px; color: var(--color-primary-dark); }
.directory-row__desc { margin-top: 4px; font-size: 13.5px; color: var(--color-ink-soft); line-height: 1.5; }
.directory-row__link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--color-primary);
  white-space: nowrap;
}
.directory-row__link i { transition: transform var(--dur-fast) var(--ease-premium); }
.directory-row:hover .directory-row__link i { transform: translateX(4px); }

@media (max-width: 860px) {
  .company-directory { grid-template-columns: 1fr; gap: 28px; }
  .company-directory__figure { display: flex; align-items: baseline; gap: 14px; }
  .company-directory__figure .ghost-figure { font-size: 72px; }
  .company-directory__figure span { margin-top: 0; }
}
@media (max-width: 560px) {
  .directory-row { grid-template-columns: 84px 1fr; row-gap: 10px; }
  .directory-row__logo { height: 52px; }
  .directory-row__link { grid-column: 2; }
}

/* ---------- Company gallery (Tasarım C, logo-based) ---------- */
/* Horizontal expanding panels: hover (or tap/focus on touch and keyboard)
   grows one panel to reveal its logo, name and description, while its
   neighbours recede to a slim, vertically-labelled sliver. On narrow
   viewports the same flex-grow mechanic runs on the vertical axis instead,
   so it reads as a compact expanding stack rather than a cramped strip. */
.company-gallery {
  display: flex;
  gap: 3px;
  height: 440px;
  overflow: hidden;
}
.gallery-panel {
  position: relative;
  flex: 1 1 0%;
  min-width: 72px;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 22px 18px;
  color: var(--color-white);
  transition: flex-grow 1.2s var(--ease-premium);
}
.gallery-panel:focus-visible { outline: 2px solid var(--color-accent-light); outline-offset: -4px; }
.gallery-panel:nth-child(5n+1) { background: var(--color-primary-dark); }
.gallery-panel:nth-child(5n+2) { background: var(--color-paper-alt); color: var(--color-ink); }
.gallery-panel:nth-child(5n+3) { background: var(--color-primary); }
.gallery-panel:nth-child(5n+4) { background: var(--color-accent); color: var(--color-dark-bg); }
.gallery-panel:nth-child(5n+5) { background: var(--color-dark-bg); }

.gallery-panel__bg {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-premium);
}
.gallery-panel.is-active .gallery-panel__bg { transform: scale(1.04); }
.gallery-panel::after {
  content: "";
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(13,23,18,0.12) 0%, rgba(13,23,18,0.55) 60%, rgba(13,23,18,0.92) 100%);
  transition: background 1.2s var(--ease-premium);
}
.gallery-panel:not(.is-active)::after { background: linear-gradient(180deg, rgba(13,23,18,0.35) 0%, rgba(13,23,18,0.85) 100%); }

.gallery-panel.is-active { flex-grow: 6; }

.gallery-panel__collapsed {
  position: relative; z-index: 2;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--color-white);
  white-space: nowrap;
  opacity: 1;
  transition: opacity 0.5s var(--ease-premium);
}
.gallery-panel.is-active .gallery-panel__collapsed { opacity: 0; }

.gallery-panel__expanded {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 30px;
  color: var(--color-white);
  opacity: 0;
  transition: opacity 0.5s var(--ease-premium);
}
.gallery-panel.is-active .gallery-panel__expanded { opacity: 1; transition-delay: 0.35s; }

.gallery-panel__logo {
  align-self: flex-start;
  background: var(--color-white);
  padding: 24px 34px;
  margin-bottom: 20px;
  display: inline-flex; align-items: center; justify-content: center;
  clip-path: polygon(var(--corner-cut-sm) 0, 100% 0, 100% calc(100% - var(--corner-cut-sm)), calc(100% - var(--corner-cut-sm)) 100%, 0 100%, 0 var(--corner-cut-sm));
}
.gallery-panel__logo img { height: 64px; width: auto; max-width: 260px; object-fit: contain; }
.gallery-panel__name { font-family: var(--font-heading); font-weight: 600; font-size: 21px; }
.gallery-panel__desc { margin-top: 10px; font-size: 13.5px; line-height: 1.6; opacity: 0.82; max-width: 30ch; }
.gallery-panel__link {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
  color: inherit;
}
.gallery-panel__link i { transition: transform var(--dur-fast) var(--ease-premium); }
.gallery-panel.is-active .gallery-panel__link:hover i { transform: translateX(4px); }

@media (max-width: 820px) {
  .company-gallery { flex-direction: column; height: auto; }
  .gallery-panel { min-width: 0; min-height: 64px; align-items: center; }
  .gallery-panel.is-active { flex-grow: 0; min-height: 320px; align-items: flex-end; }
  .gallery-panel__collapsed { writing-mode: horizontal-tb; transform: none; font-size: 17px; }
  .gallery-panel__expanded { padding: 24px; }
}


/* ---------- Layout toggle (demo A/B switch for companies section) ---------- */
.layout-toggle {
  display: inline-flex; border: var(--rule); align-self: start;
}
.layout-toggle__btn {
  background: none; border: none; padding: 10px 20px;
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--color-ink-soft);
  border-right: var(--rule);
  transition: background var(--dur-fast) var(--ease-premium), color var(--dur-fast) var(--ease-premium);
}
.layout-toggle__btn:last-child { border-right: none; }
.layout-toggle__btn:hover { color: var(--color-primary); }
.layout-toggle__btn.is-active { background: var(--color-primary); color: var(--color-white); }
.layout-toggle-row { display: flex; justify-content: flex-end; margin: -32px 0 40px; }
@media (max-width: 820px) { .layout-toggle-row { justify-content: flex-start; margin-top: 0; } }


/* ---------- Company detail ---------- */
.company-hero { position: relative; min-height: 60vh; display: flex; align-items: flex-end; overflow: hidden; background: var(--color-dark-bg); }
.company-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.company-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(13,23,18,0.35) 0%, rgba(13,23,18,0.92) 100%); }
.company-hero__content { position: relative; z-index: 2; padding: calc(var(--header-height) + 72px) 0 56px; color: var(--color-white); }
.company-hero__logo { height: 46px; margin-bottom: 30px; }
.company-hero__logo img { height: 100%; width: auto; object-fit: contain; }
.company-hero__title { font-size: clamp(34px, 5.4vw, 58px); color: var(--color-white); max-width: 780px; }
.company-hero__meta { display: flex; gap: 0; margin-top: 32px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,0.2); }
.company-hero__meta div { font-size: 13px; color: rgba(255,255,255,0.6); padding: 16px 28px 0 0; }
.company-hero__meta strong { display: block; font-family: var(--font-heading); font-size: 21px; color: var(--color-white); margin-top: 6px; font-weight: 600; }

.company-body { display: grid; grid-template-columns: 1fr 320px; gap: 72px; }
.company-body__content { font-size: 16px; line-height: 1.85; color: var(--color-ink-soft); }
.company-body__content h2, .company-body__content h3 { color: var(--color-primary-dark); margin-top: 36px; margin-bottom: 14px; }
.company-body__content p { margin-bottom: 16px; }
.company-side { align-self: start; position: sticky; top: 130px; border-top: 2px solid var(--color-primary); padding-top: 24px; }
.company-side h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-ink-soft); margin-bottom: 20px; font-weight: 600; }
.company-side__row { display: flex; gap: 12px; padding: 14px 0; border-top: var(--rule); font-size: 14.5px; }
.company-side__row:first-of-type { border-top: none; }
.company-side__row i { color: var(--color-primary); width: 18px; margin-top: 3px; }

@media (max-width: 1000px) {
  .company-body { grid-template-columns: 1fr; }
  .company-side { position: static; }
}

.gallery-grid { margin-top: 64px; display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 200px; gap: 4px; }
.gallery-grid a { position: relative; overflow: hidden; display: block; }
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-premium); }
.gallery-grid a:hover img { transform: scale(1.08); }
.gallery-grid a:nth-child(1) { grid-column: span 2; grid-row: span 2; clip-path: polygon(var(--corner-cut) 0, 100% 0, 100% calc(100% - var(--corner-cut)), calc(100% - var(--corner-cut)) 100%, 0 100%, 0 var(--corner-cut)); }
.gallery-grid a:nth-child(4) { grid-column: span 2; }
@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .gallery-grid a:nth-child(1) { grid-column: span 2; }
}

.related-companies { margin-top: 24px; }

/* ---------- CTA banner ---------- */
.cta-banner {
  position: relative; overflow: hidden;
  padding: 96px 60px; text-align: center; isolation: isolate;
}
.cta-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.cta-banner::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(13,23,18,0.8), rgba(13,23,18,0.94)); }
.cta-banner__title { color: var(--color-white); font-size: clamp(30px, 4.4vw, 46px); max-width: 680px; margin: 0 auto; }
.cta-banner__desc { margin-top: 18px; color: rgba(255,255,255,0.75); max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-banner__actions { margin-top: 38px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 640px) { .cta-banner { padding: 64px 24px; } }

/* ---------- Principles (About page values) ---------- */
.principles { border-top: var(--rule); }
.principle {
  display: grid; grid-template-columns: 0.6fr 1.4fr; gap: 40px;
  padding: 40px 0; border-bottom: var(--rule);
  align-items: baseline;
}
.principle__title { font-size: clamp(24px, 2.4vw, 30px); }
.principle__desc { font-size: 15.5px; line-height: 1.75; color: var(--color-ink-soft); max-width: 56ch; }
@media (max-width: 720px) { .principle { grid-template-columns: 1fr; gap: 10px; } }

/* ---------- Timeline (About) ---------- */
.timeline { position: relative; padding-left: 32px; border-left: 1px solid var(--color-border); display: flex; flex-direction: column; gap: 44px; }
.timeline__item { position: relative; }
.timeline__item::before { content: ""; position: absolute; left: -37px; top: 4px; width: 11px; height: 11px; background: var(--color-accent); box-shadow: 0 0 0 4px var(--color-paper); }
.timeline__year { font-family: var(--font-heading); font-size: 24px; color: var(--color-primary); }
.timeline__item p { margin-top: 8px; color: var(--color-ink-soft); font-size: 15px; line-height: 1.7; max-width: 640px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; }
.contact-info { display: flex; flex-direction: column; }
.contact-info__item { display: flex; gap: 20px; padding: 22px 0; border-top: var(--rule); }
.contact-info__item:first-child { border-top: none; padding-top: 0; }
.contact-info__item i { width: 20px; margin-top: 3px; color: var(--color-primary); flex-shrink: 0; }
.contact-info__item h4 { font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-ink-soft); margin-bottom: 6px; font-weight: 600; }
.contact-info__item p, .contact-info__item a { font-size: 15.5px; color: var(--color-ink); }
.contact-info__item a:hover { color: var(--color-primary); }
.contact-info__note { margin-top: 22px; padding-top: 22px; border-top: var(--rule); font-size: 14px; line-height: 1.7; color: var(--color-ink-soft); }

.form { background: var(--color-white); border: var(--rule); padding: 48px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form__group { margin-bottom: 20px; }
.form__label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--color-ink); }
.form__input, .form__textarea {
  width: 100%; padding: 15px 18px;
  border: var(--rule); background: var(--color-paper);
  font-size: 14.5px; color: var(--color-ink);
  transition: border-color var(--dur-fast) var(--ease-premium), background var(--dur-fast) var(--ease-premium);
}
.form__input:focus, .form__textarea:focus { outline: none; border-color: var(--color-primary); background: var(--color-white); }
.form__textarea { resize: vertical; min-height: 140px; }
.form__submit { width: 100%; justify-content: center; border: none; }

.alert { display: flex; align-items: center; gap: 12px; padding: 16px 20px; font-size: 14px; margin-bottom: 24px; }
.alert--success { background: rgba(43, 130, 78, 0.08); color: #1f6b41; }
.alert--error { background: rgba(180, 60, 60, 0.08); color: #a13636; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form { padding: 28px; }
  .form__row { grid-template-columns: 1fr; }
}

/* ---------- Office switcher (Ofislerimiz) ---------- */
.office-switcher__tabs { display: flex; flex-wrap: wrap; border-bottom: var(--rule); margin-bottom: 48px; }
.office-switcher__tab {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 6px; margin-right: 36px;
  background: none; border: none; border-bottom: 2px solid transparent;
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 600;
  color: var(--color-ink-soft);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-premium), border-color var(--dur-fast) var(--ease-premium);
}
.office-switcher__tab i { font-size: 14px; color: var(--color-accent-dark); opacity: 0; transition: opacity var(--dur-fast) var(--ease-premium); }
.office-switcher__tab.is-active { color: var(--color-primary-dark); border-color: var(--color-accent); }
.office-switcher__tab.is-active i { opacity: 1; }
.office-switcher__tab:hover { color: var(--color-primary-dark); }
.office-switcher__tab:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.office-switcher__panels { display: grid; }
.office-panel {
  grid-area: 1 / 1;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-med) var(--ease-premium);
}
.office-panel.is-active { opacity: 1; pointer-events: auto; }

.office-panel__title { font-size: clamp(22px, 2.4vw, 30px); margin-bottom: 18px; }
.office-panel__address { font-size: 15.5px; line-height: 1.7; color: var(--color-ink-soft); max-width: 42ch; }
.office-panel__row { display: flex; align-items: center; gap: 12px; margin-top: 16px; font-size: 15px; color: var(--color-ink); }
.office-panel__row i { width: 18px; color: var(--color-primary); }
.office-panel__row:hover { color: var(--color-primary); }
.office-panel__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.office-panel__map {
  position: relative; overflow: hidden; min-height: 340px;
  clip-path: polygon(var(--corner-cut) 0, 100% 0, 100% calc(100% - var(--corner-cut)), calc(100% - var(--corner-cut)) 100%, 0 100%, 0 var(--corner-cut));
}
.office-panel__map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; }
.office-panel__map-placeholder {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  background: var(--color-paper-alt);
  color: var(--color-ink-soft);
}
.office-panel__map-placeholder i { position: relative; z-index: 1; font-size: 26px; color: var(--color-accent-dark); }
.office-panel__map-placeholder span { position: relative; z-index: 1; font-size: 12.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }

@media (max-width: 860px) {
  .office-switcher__tab { margin-right: 22px; padding: 12px 4px; }
  .office-panel { grid-template-columns: 1fr; gap: 28px; }
  .office-panel__map, .office-panel__map iframe { min-height: 260px; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--color-dark-bg); color: var(--color-dark-text-soft); padding-top: 90px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; padding-bottom: 60px; border-bottom: 1px solid var(--color-dark-border); }
.footer-brand img { height: 38px; margin-bottom: 22px; }
.footer-brand p { font-size: 14.5px; line-height: 1.75; max-width: 300px; }
.footer-social { display: flex; gap: 12px; margin-top: 26px; }
.footer-social a {
  width: 40px; height: 40px; border: 1px solid var(--color-dark-border);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--dur-fast) var(--ease-premium), border-color var(--dur-fast) var(--ease-premium);
}
.footer-social a:hover { background: var(--color-primary-light); border-color: var(--color-primary-light); color: var(--color-white); }
.footer-col h4 { color: var(--color-white); font-size: 15px; font-weight: 600; margin-bottom: 22px; }
.footer-col ul { display: flex; flex-direction: column; gap: 13px; }
.footer-col a { font-size: 14.5px; transition: color var(--dur-fast) var(--ease-premium); }
.footer-col a:hover { color: var(--color-white); }
.footer-col li { display: flex; align-items: flex-start; gap: 10px; }
.footer-col li i { color: var(--color-accent); margin-top: 4px; }
.footer-bottom { padding: 26px 0; display: flex; justify-content: space-between; align-items: center; font-size: 13px; flex-wrap: wrap; gap: 12px; }
.footer-bottom a:hover { color: var(--color-white); }

@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

/* ---------- Reveal-on-scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease-premium), transform 0.9s var(--ease-premium); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ---------- Logo on dark backgrounds ---------- */
.logo-inverted { filter: brightness(0) invert(1); }

/* ---------- WhatsApp float ---------- */
.float-whatsapp {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 56px; height: 56px;
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  background: #25d366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 25px; box-shadow: 0 14px 30px -10px rgba(0,0,0,0.4);
  transition: transform var(--dur-fast) var(--ease-premium);
}
.float-whatsapp:hover { transform: scale(1.08); }

/* ---------- 404 ---------- */
.error-page { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; flex-direction: column; padding: 100px 20px; }
.error-page__code { font-family: var(--font-heading); font-size: 120px; color: var(--color-primary); line-height: 1; }