/* Tema katmanı — Industry tasarım sistemi tokenları üzerine kurulu.
   Renk / font / boşluk değerleri ds.css içindeki değişkenlerden gelir. */

body { font-size: 16px; }
.container { width: min(1240px, 100% - var(--space-8)); margin-inline: auto; }
.section { padding: calc(var(--space-8) * 3) 0; }
.section--tight { padding: calc(var(--space-8) * 2) 0; }
.section--steel { background: var(--color-accent-900); color: var(--color-bg); }
.section--surface { background: var(--color-surface); }
img { height: auto; }

.kicker {
  font-family: var(--font-heading); font-size: 12px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--color-accent-700); margin: 0 0 var(--space-3);
  display: flex; align-items: center; gap: var(--space-3);
}
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--color-accent); }
.section--steel .kicker { color: var(--color-accent-300); }
.section--steel .kicker::before { background: var(--color-accent-300); }

.sec-head { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr); gap: var(--space-8);
  align-items: end; margin-bottom: calc(var(--space-8) * 1.6); }
.sec-head h2 { font-size: clamp(30px, 3.4vw, 46px); text-transform: uppercase; letter-spacing: -.01em; }
.sec-head p { margin: 0; color: color-mix(in srgb, var(--color-text) 62%, transparent); }
.section--steel .sec-head p { color: color-mix(in srgb, #fff 70%, transparent); }
@media (max-width: 900px) { .sec-head { grid-template-columns: 1fr; align-items: start; } }

.grid { display: grid; gap: 1px; background: var(--color-divider); }
.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.gap-grid { background: transparent; gap: var(--space-6); }
@media (max-width: 980px) { .cols-3, .cols-4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; } }

/* ---------- Üst bar + navigasyon ---------- */
.topbar { background: var(--color-accent-900); color: color-mix(in srgb, #fff 78%, transparent); font-size: 13px; }
.topbar .container { display: flex; align-items: center; gap: var(--space-6); min-height: 40px; }
.topbar a { color: inherit; text-decoration: none; }
.topbar a:hover { color: #fff; }
.topbar .spacer { margin-left: auto; }
.lang-switch { display: flex; gap: var(--space-1); font-family: var(--font-heading); letter-spacing: .08em; }
.lang-switch a { padding: 2px 7px; border: 1px solid transparent; text-transform: uppercase; }
.lang-switch a.is-active { border-color: color-mix(in srgb, #fff 35%, transparent); color: #fff; }

.site-header { position: sticky; top: 0; z-index: 40; background: var(--color-bg);
  border-bottom: 1px solid var(--color-divider); }
.site-header .container { display: flex; align-items: center; gap: var(--space-6); min-height: 76px; }
.brand { display: flex; align-items: center; gap: var(--space-3); text-decoration: none; color: inherit; margin-right: auto; }
.brand img { max-height: 46px; width: auto; }
.brand-name { font-family: var(--font-heading); font-size: 24px; text-transform: uppercase; letter-spacing: .04em; line-height: 1; }
.brand-sub { font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 55%, transparent); }
.mainnav { display: flex; gap: var(--space-6); }
.mainnav a { font-family: var(--font-heading); font-size: 15px; letter-spacing: .06em; text-transform: uppercase;
  text-decoration: none; color: inherit; padding: 6px 0; border-bottom: 2px solid transparent; }
.mainnav a:hover { color: var(--color-accent-700); }
.mainnav a.is-active { border-bottom-color: var(--color-accent); color: var(--color-accent-700); }
.burger { display: none; }
@media (max-width: 1080px) {
  .mainnav { display: none; }
  .burger { display: inline-flex; }
  .site-header.is-open .mainnav { display: flex; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; gap: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-divider); }
  .site-header.is-open .mainnav a { padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--color-divider); }
}

/* ---------- Hero / slider ---------- */
.hero { position: relative; background: var(--color-accent-900); color: #fff; overflow: hidden;
  min-height: clamp(520px, 68vh, 780px); display: grid; }
.hero-track { position: relative; display: grid; }
.hero-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity .8s ease, visibility .8s ease; }
.hero-slide.is-active { opacity: 1; visibility: visible; position: relative; z-index: 2; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; opacity: .38; transform: scale(1.06); }
.hero-slide.is-active .hero-media img { animation: heroPan 9s ease-out forwards; }
@keyframes heroPan { from { transform: scale(1.06); } to { transform: scale(1); } }
.hero-media::after { content: ""; position: absolute; inset: 0; background: var(--color-accent-900); mix-blend-mode: color; }
.hero-inner { position: relative; padding: calc(var(--space-8) * 4.2) 0 calc(var(--space-8) * 5.4); max-width: 780px; }
.hero .kicker, .hero h1, .hero p, .hero .hero-actions { opacity: 0; transform: translateY(14px); }
.hero-slide.is-active .kicker { animation: heroIn .6s .05s ease forwards; }
.hero-slide.is-active h1 { animation: heroIn .6s .14s ease forwards; }
.hero-slide.is-active p { animation: heroIn .6s .24s ease forwards; }
.hero-slide.is-active .hero-actions { animation: heroIn .6s .34s ease forwards; }
@keyframes heroIn { to { opacity: 1; transform: none; } }
.hero h1 { font-size: clamp(34px, 5.6vw, 74px); text-transform: uppercase; line-height: .98; margin-bottom: var(--space-4); }
.hero p { font-size: clamp(15px, 1.4vw, 19px); color: color-mix(in srgb, #fff 78%, transparent); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-8); }
.hero-rule { position: absolute; inset: 0; pointer-events: none; z-index: 1;
  background-image: linear-gradient(90deg, color-mix(in srgb,#fff 8%, transparent) 1px, transparent 1px);
  background-size: 25% 100%; }

/* slider kumandası */
.hero-ui { position: absolute; left: 0; right: 0; bottom: var(--space-8); z-index: 5;
  display: flex; align-items: center; gap: var(--space-6); }
.hero-arrows { display: flex; gap: var(--space-2); }
.hero-arrow { width: 46px; height: 46px; display: grid; place-items: center; cursor: pointer;
  background: transparent; color: #fff; font-size: 18px; line-height: 1;
  border: 1px solid color-mix(in srgb,#fff 35%, transparent); transition: background .2s ease, border-color .2s ease; }
.hero-arrow:hover { background: var(--color-accent); border-color: var(--color-accent); }
.hero-arrow:active { background: var(--color-accent-400); }
.hero-arrow:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.hero-count { font-family: var(--font-heading); font-size: 14px; letter-spacing: .16em;
  color: color-mix(in srgb,#fff 70%, transparent); }
.hero-count b { color: #fff; }
.hero-dots { display: flex; gap: var(--space-2); margin-left: auto; }
.hero-dots button { width: 40px; height: 3px; padding: 0; border: 0; cursor: pointer;
  background: color-mix(in srgb,#fff 32%, transparent); transition: background .2s ease; }
.hero-dots button:hover { background: color-mix(in srgb,#fff 60%, transparent); }
.hero-dots button.is-active { background: #fff; }
.hero-progress { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; z-index: 5;
  background: color-mix(in srgb,#fff 16%, transparent); }
.hero-progress i { display: block; height: 100%; width: 0; background: var(--color-accent-300); }
.hero-progress i.run { animation: heroBar linear forwards; animation-duration: var(--hero-dur, 6.5s); }
@keyframes heroBar { from { width: 0 } to { width: 100% } }
@media (prefers-reduced-motion: reduce) {
  .hero-slide, .hero-slide.is-active .hero-media img,
  .hero-slide.is-active .kicker, .hero-slide.is-active h1,
  .hero-slide.is-active p, .hero-slide.is-active .hero-actions,
  .hero-progress i.run { animation: none !important; transition: none !important; }
  .hero .kicker, .hero h1, .hero p, .hero .hero-actions { opacity: 1; transform: none; }
}
@media (max-width: 780px) {
  .hero { min-height: clamp(460px, 76vh, 640px); }
  .hero-inner { padding: calc(var(--space-8) * 3) 0 calc(var(--space-8) * 6); }
  .hero-rule { background-size: 50% 100%; }
  .hero-ui { flex-wrap: wrap; gap: var(--space-4); }
  .hero-dots { margin-left: 0; order: 3; width: 100%; }
  .hero-arrow { width: 42px; height: 42px; }
  .hero-actions .btn { flex: 1 1 auto; }
}

/* ---------- Ölçü plakası (istatistikler) ---------- */
.plate { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); border: 1px solid var(--color-divider); }
.plate > div { padding: var(--space-8); border-right: 1px solid var(--color-divider); }
.plate > div:last-child { border-right: 0; }
.plate b { display: block; font-family: var(--font-heading); font-size: clamp(34px, 4vw, 54px); line-height: 1; }
.plate span { font-size: 13px; letter-spacing: .04em; color: color-mix(in srgb, var(--color-text) 60%, transparent); }
@media (max-width: 780px) { .plate { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .plate > div { border-bottom: 1px solid var(--color-divider); } }

/* ---------- Kartlar ---------- */
.tile { background: var(--color-bg); padding: var(--space-8); display: flex; flex-direction: column;
  gap: var(--space-4); text-decoration: none; color: inherit; transition: background .2s ease; }
.tile:hover { background: color-mix(in srgb, var(--color-accent) 7%, var(--color-bg)); }
.tile-no { font-family: var(--font-heading); font-size: 12px; letter-spacing: .14em; color: var(--color-accent-700); }
.tile h3 { font-size: 21px; text-transform: uppercase; margin: 0; }
.tile p { margin: 0; font-size: 14px; color: color-mix(in srgb, var(--color-text) 62%, transparent); flex: 1; }
.tile .more { font-family: var(--font-heading); font-size: 13px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--color-accent-700); }

.figure { position: relative; }
.figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.figure--tall img { aspect-ratio: 3 / 4; }
.figure--wide img { aspect-ratio: 16 / 9; }

.pcard { text-decoration: none; color: inherit; display: block; }
.pcard .figure { margin-bottom: var(--space-4); }
.pcard img { transition: transform .5s ease; }
.pcard:hover img { transform: scale(1.03); }
.pcard h3 { font-size: 20px; text-transform: uppercase; margin: 0 0 var(--space-1); }
.pcard .meta { font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 55%, transparent); }

/* ---------- Süreç adımları ---------- */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: var(--space-8); }
.steps > li { list-style: none; counter-increment: s; padding-top: var(--space-6);
  border-top: 2px solid color-mix(in srgb, currentColor 25%, transparent); }
.steps > li::before { content: "0" counter(s); display: block; font-family: var(--font-heading);
  font-size: 13px; letter-spacing: .14em; color: var(--color-accent-300); margin-bottom: var(--space-3); }
.steps h4 { font-size: 19px; text-transform: uppercase; margin-bottom: var(--space-2); }
.steps p { font-size: 14px; color: color-mix(in srgb, #fff 68%, transparent); margin: 0; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Sayfa başlığı ---------- */
.page-head { background: var(--color-accent-900); color: #fff; padding: calc(var(--space-8) * 2.4) 0; }
.page-head h1 { font-size: clamp(32px, 4.4vw, 56px); text-transform: uppercase; margin: 0; }
.crumbs { font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: color-mix(in srgb, #fff 60%, transparent); margin-bottom: var(--space-4); }
.crumbs a { color: inherit; text-decoration: none; }
.crumbs a:hover { color: #fff; }

/* ---------- Metin gövdesi ---------- */
.prose { max-width: 72ch; }
.prose h2 { font-size: 30px; text-transform: uppercase; margin-top: var(--space-8); }
.prose h3 { font-size: 22px; text-transform: uppercase; margin-top: var(--space-6); }
.prose p, .prose li { color: color-mix(in srgb, var(--color-text) 78%, transparent); text-wrap: pretty; }
.prose ul { padding-left: var(--space-6); }
.prose img { margin: var(--space-6) 0; }

.split { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: calc(var(--space-8) * 2); align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; gap: var(--space-8); } }
.sidebar { display: flex; flex-direction: column; gap: var(--space-6); }
.sidebar h4 { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 var(--space-3); }
.speclist { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.speclist li { display: flex; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-3) 0; border-bottom: 1px solid var(--color-divider); }
.speclist b { font-weight: 500; }

/* ---------- Formlar ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: var(--space-6); }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.notice { padding: var(--space-4) var(--space-6); border: 1px solid var(--color-accent);
  background: var(--color-accent-100); font-size: 14px; margin-bottom: var(--space-6); }

/* ---------- SSS ---------- */
.acc { border-top: 1px solid var(--color-divider); }
.acc details { border-bottom: 1px solid var(--color-divider); }
.acc summary { cursor: pointer; list-style: none; padding: var(--space-6) 0; display: flex; gap: var(--space-4);
  font-family: var(--font-heading); font-size: 20px; text-transform: uppercase; }
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: "+"; margin-left: auto; color: var(--color-accent); font-size: 22px; line-height: 1; }
.acc details[open] summary::after { content: "–"; }
.acc .answer { padding: 0 0 var(--space-6); max-width: 74ch;
  color: color-mix(in srgb, var(--color-text) 72%, transparent); }

/* ---------- Sayfalama ---------- */
.pager { display: flex; gap: var(--space-2); margin-top: calc(var(--space-8) * 1.5); }

/* ---------- CTA şeridi ---------- */
.cta { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--space-8); align-items: center;
  padding: calc(var(--space-8) * 1.6); border: 1px solid color-mix(in srgb, #fff 30%, transparent); }
.cta h2 { font-size: clamp(26px, 3vw, 40px); text-transform: uppercase; margin: 0 0 var(--space-2); }
.cta p { margin: 0; color: color-mix(in srgb, #fff 72%, transparent); }
@media (max-width: 780px) { .cta { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-neutral-900); color: color-mix(in srgb, #fff 72%, transparent);
  padding: calc(var(--space-8) * 2.4) 0 var(--space-8); font-size: 14px; }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--space-8); }
.site-footer h5 { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: #fff;
  margin: 0 0 var(--space-4); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-brand { font-family: var(--font-heading); font-size: 26px; text-transform: uppercase; color: #fff;
  letter-spacing: .04em; margin-bottom: var(--space-3); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: var(--space-4); justify-content: space-between;
  margin-top: calc(var(--space-8) * 2); padding-top: var(--space-6);
  border-top: 1px solid color-mix(in srgb, #fff 15%, transparent); font-size: 12px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- Duyarlı ızgara ayarları ---------- */
.container { width: min(1240px, 100% - var(--space-8) * 2); }
@media (max-width: 1180px) { .container { width: min(100% - var(--space-8), 1240px); } }
@media (max-width: 1080px) {
  .section { padding: calc(var(--space-8) * 2.2) 0; }
  .sec-head { margin-bottom: calc(var(--space-8) * 1.2); }
  .split { gap: calc(var(--space-8) * 1.2); }
}
@media (max-width: 900px) {
  .plate > div { padding: var(--space-6); }
  .tile { padding: var(--space-6); }
  .cta { padding: var(--space-8); text-align: left; }
  .site-header .container { min-height: 66px; }
  .brand-name { font-size: 20px; }
}
@media (max-width: 640px) {
  .section { padding: calc(var(--space-8) * 1.8) 0; }
  .topbar .container { gap: var(--space-4); flex-wrap: wrap; min-height: 0; padding-block: 8px; font-size: 12px; }
  .topbar .spacer { margin-left: auto; }
  .site-header .btn-primary { display: none; }
  .footer-bottom { flex-direction: column; gap: var(--space-2); }
  .speclist li { flex-direction: column; gap: 2px; }
  .acc summary { font-size: 17px; }
}
@media (min-width: 1600px) { .container { width: min(1400px, 100% - var(--space-8) * 2); } }

/* ---------- Alt menü (dropdown) ---------- */
.mainnav .has-sub { position: relative; display: inline-flex; align-items: center; }
.mainnav .has-sub > a em { font-style: normal; font-size: 11px; color: var(--color-accent); margin-left: 4px; }
.mainnav .submenu { position: absolute; top: 100%; left: 0; min-width: 250px; display: none;
  flex-direction: column; background: var(--color-bg); border: 1px solid var(--color-divider);
  box-shadow: var(--shadow-md); padding: var(--space-2) 0; z-index: 50; }
.mainnav .submenu a { display: block; padding: 9px var(--space-4); border: 0; text-transform: none;
  font-family: var(--font-body); font-size: 14px; letter-spacing: 0; }
.mainnav .submenu a:hover { background: var(--color-accent-100); color: var(--color-accent-800); }
.mainnav .has-sub:hover .submenu, .mainnav .has-sub:focus-within .submenu { display: flex; }
@media (max-width: 1080px) {
  .site-header.is-open .mainnav .has-sub { display: block; width: 100%; }
  .site-header.is-open .mainnav .submenu { position: static; display: flex; border: 0; box-shadow: none;
    padding: 0 0 var(--space-3) var(--space-6); }
  .site-header.is-open .mainnav .has-sub > a { display: block; padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-divider); }
}

/* ---------- Alt sayfa / alt hizmet listesi ---------- */
.childlist { display: grid; gap: 1px; background: var(--color-divider); margin-top: calc(var(--space-8) * 1.5); }
.childlist a { background: var(--color-bg); padding: var(--space-6); text-decoration: none; color: inherit;
  display: flex; align-items: baseline; gap: var(--space-4); transition: background .2s ease; }
.childlist a:hover { background: var(--color-accent-100); }
.childlist a b { font-family: var(--font-heading); font-size: 18px; text-transform: uppercase; }
.childlist a span { font-size: 14px; color: color-mix(in srgb, var(--color-text) 60%, transparent); margin-left: auto; }