/* ==========================================================================
   BKT ENERJİ — Kurumsal Web Sitesi
   Tasarım & Yazılım: ASD — www.asd.web.tr
   ========================================================================== */

/* ---------- 1. Tasarım değişkenleri ---------- */
:root {
  --brand: #e1141b;            /* BKT logo kırmızısı (UI için hafif yumuşatıldı) */
  --brand-600: #c40f15;
  --brand-50: #fdeced;
  --navy: #0b1e36;             /* Ana kurumsal lacivert */
  --navy-800: #102a4a;
  --navy-700: #16365e;
  --blue: #1f6fd1;             /* Elektrik mavisi — vurgu */
  --blue-50: #eaf2fc;
  --green: #12a36b;            /* Verimlilik / tasarruf vurgusu */
  --green-50: #e7f7f0;
  --ink: #0f1b2b;
  --text: #34455b;
  --muted: #64748b;
  --line: #e3e9f1;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --bg-softer: #f9fbfd;
  --white: #ffffff;

  --font-head: "Plus Jakarta Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(11, 30, 54, .06), 0 1px 3px rgba(11, 30, 54, .05);
  --shadow: 0 10px 30px -12px rgba(11, 30, 54, .18);
  --shadow-lg: 0 30px 60px -20px rgba(11, 30, 54, .28);

  --container: 1240px;
  --header-h: 84px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- 2. Temel ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand); }
p { margin: 0 0 1em; }
ul, ol.breadcrumb, ol.numbered { margin: 0; padding: 0; list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 .5em;
  font-weight: 800;
  letter-spacing: -.02em;
}
h1 { font-size: clamp(2.2rem, 4.6vw, 3.8rem); }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.65rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); font-weight: 700; letter-spacing: -.01em; }
h4 { font-size: 1.05rem; font-weight: 700; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section--soft { background: var(--bg-soft); }
.section--navy { background: var(--navy); color: #c9d5e6; }
.section--navy h2, .section--navy h3 { color: #fff; }

.skip-link {
  position: absolute; left: -9999px; top: 12px; z-index: 1000;
  background: var(--brand); color: #fff; padding: 10px 16px; border-radius: var(--radius-sm);
}
.skip-link:focus { left: 12px; color: #fff; }

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

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-head);
  font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--brand); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: currentColor; border-radius: 2px; }
.section--navy .eyebrow, .page-hero .eyebrow, .hero .eyebrow { color: #ff6b70; }

.section-head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 60px); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head p { font-size: 1.075rem; color: var(--muted); margin: 0; }
.section--navy .section-head p { color: #aebdd2; }

.lead { font-size: 1.15rem; color: var(--text); }

/* ---------- 3. Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px; border: 2px solid transparent;
  font-family: var(--font-head); font-weight: 700; font-size: .95rem; letter-spacing: .01em;
  cursor: pointer; transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 10px 24px -10px rgba(225, 20, 27, .7); }
.btn--primary:hover { background: var(--brand-600); color: #fff; transform: translateY(-2px); }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--navy-700); color: #fff; transform: translateY(-2px); }
.btn--ghost { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn--ghost:hover { background: #fff; color: var(--navy); border-color: #fff; }
.btn--outline { border-color: var(--line); color: var(--navy); background: #fff; }
.btn--outline:hover { border-color: var(--navy); color: var(--navy); }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head); font-weight: 700; font-size: .92rem; color: var(--navy);
}
.link-arrow svg { width: 16px; height: 16px; transition: transform .2s var(--ease); }
.link-arrow:hover { color: var(--brand); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- 4. Üst bilgi şeridi ---------- */
.topbar { background: var(--navy); color: #b9c7da; font-size: .84rem; }
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 42px; }
.topbar a { color: #dfe7f2; }
.topbar a:hover { color: #fff; }
.topbar__list { display: flex; flex-wrap: wrap; gap: 22px; }
.topbar__list li { display: inline-flex; align-items: center; gap: 8px; }
.topbar__list svg { width: 15px; height: 15px; color: #ff6b70; }
.topbar__tag { display: inline-flex; align-items: center; gap: 8px; color: #dfe7f2; font-weight: 500; }
.topbar__tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(18, 163, 107, .2); }

/* ---------- 5. Header / Navigasyon ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 8px 30px -18px rgba(11, 30, 54, .35); border-color: var(--line); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); flex: none; }
.brand:hover { color: var(--navy); }
.brand__mark { width: 52px; height: 52px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name { font-family: var(--font-head); font-weight: 800; font-size: 1.3rem; letter-spacing: -.01em; }
.brand__name span { color: var(--brand); }
.brand__tag { font-size: .74rem; color: var(--muted); font-style: italic; letter-spacing: .02em; margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-radius: 10px;
  font-family: var(--font-head); font-weight: 600; font-size: .95rem; color: var(--navy);
  background: none; border: 0; cursor: pointer;
}
.nav__link svg { width: 14px; height: 14px; transition: transform .2s var(--ease); }
.nav__link:hover, .nav__item:hover > .nav__link { color: var(--brand); background: var(--bg-soft); }
.nav__link.is-active { color: var(--brand); }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--brand);
}
.nav__item--has-mega:hover .nav__link svg,
.nav__item--has-mega.is-open .nav__link svg { transform: rotate(180deg); }

.nav__cta { margin-left: 10px; padding: 12px 20px; }

/* Mega menü */
.mega {
  position: absolute; top: calc(100% + 12px); left: 50%;
  width: min(920px, 92vw);
  transform: translate(-50%, 8px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: 1.35fr .9fr; overflow: hidden;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.mega::before { content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px; }
.nav__item--has-mega:hover .mega,
.nav__item--has-mega:focus-within .mega,
.nav__item--has-mega.is-open .mega { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 0); }

.mega__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 22px; }
.mega__link { display: flex; gap: 14px; padding: 12px; border-radius: 12px; color: var(--ink); }
.mega__link:hover { background: var(--bg-soft); color: var(--ink); }
.mega__icon {
  flex: none; width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center; background: var(--brand-50); color: var(--brand);
}
.mega__icon svg { width: 22px; height: 22px; }
.mega__title { display: block; font-family: var(--font-head); font-weight: 700; font-size: .93rem; line-height: 1.3; }
.mega__desc { display: block; font-size: .8rem; color: var(--muted); line-height: 1.45; margin-top: 3px; }
.mega__aside {
  position: relative; padding: 28px; color: #fff;
  background: linear-gradient(160deg, rgba(11, 30, 54, .92), rgba(16, 42, 74, .86)), url("https://images.unsplash.com/photo-1544724569-5f546fd6f2b5?auto=format&fit=crop&w=700&q=70") center/cover;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.mega__aside h4 { color: #fff; font-size: 1.15rem; margin-bottom: 8px; }
.mega__aside p { font-size: .88rem; color: #c9d5e6; margin-bottom: 18px; }
.mega__aside .btn { align-self: flex-start; padding: 11px 20px; font-size: .88rem; }
/* Kısa ekranlarda (dizüstü) menünün altı ekran dışına taşmasın: kompakt görünüm + gerekirse kaydırma */
@media (min-width: 1025px) {
  /* overflow:visible → üstteki köprü (::before) kırpılmasın; fare aşağı inerken menü kapanmasın */
  .mega { overflow: visible; max-height: calc(100vh - 150px);
    transition: opacity .2s var(--ease) .15s, transform .2s var(--ease) .15s, visibility 0s linear .35s; }
  .mega::before { top: -20px; height: 20px; }
  .nav__item--has-mega:hover .mega, .nav__item--has-mega:focus-within .mega, .nav__item--has-mega.is-open .mega {
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility 0s; }
  .mega__grid { overflow-y: auto; overscroll-behavior: contain; align-content: start; max-height: calc(100vh - 150px); border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
  .mega__aside { border-radius: 0 var(--radius-lg) var(--radius-lg) 0; }
  .mega__link { align-items: flex-start; }
  .mega__desc { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
}
@media (min-width: 1025px) and (max-height: 860px) {
  .mega__grid { padding: 14px; gap: 2px; }
  .mega__link { padding: 9px 12px; align-items: center; }
  .mega__icon { width: 36px; height: 36px; }
  .mega__desc { display: none; }
}

/* Mobil menü düğmesi */
.nav-toggle {
  display: none; width: 46px; height: 46px; border-radius: 12px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; place-items: center; color: var(--navy);
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 20px; height: 2px; background: currentColor; border-radius: 2px; position: relative; transition: transform .25s var(--ease), background .25s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 6. Hero (Ana sayfa) ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  min-height: clamp(600px, 88vh, 820px);
  display: flex; align-items: center;
  background: var(--navy);
}
.hero__slides { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transform: scale(1.06); transition: opacity 1.4s var(--ease), transform 7s linear;
}
.hero__slide.is-active { opacity: 1; transform: scale(1); }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 30, 54, .95) 0%, rgba(11, 30, 54, .82) 42%, rgba(11, 30, 54, .35) 100%),
    linear-gradient(0deg, rgba(11, 30, 54, .6), transparent 40%);
}
.hero .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 120px; }
.hero__content { max-width: 720px; }
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero h1 em { font-style: normal; color: #ff5a60; }
.hero__lead { font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: #d3deec; max-width: 620px; margin-bottom: 34px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 40px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .16);
  font-size: .85rem; color: #e6edf6; backdrop-filter: blur(6px);
}
.hero__badge svg { width: 16px; height: 16px; color: #5fd3a3; }
.hero__dots { position: absolute; z-index: 3; right: 24px; bottom: 140px; display: flex; flex-direction: column; gap: 10px; }
.hero__dot { width: 10px; height: 10px; border-radius: 999px; border: 0; padding: 0; cursor: pointer; background: rgba(255, 255, 255, .35); transition: height .3s var(--ease), background .3s; }
.hero__dot.is-active { height: 30px; background: var(--brand); }

/* İstatistik şeridi */
.stats { position: relative; z-index: 5; margin-top: -78px; }
.stats__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden;
  border: 1px solid var(--line);
}
.stat { padding: 30px 28px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat__value { font-family: var(--font-head); font-weight: 800; font-size: clamp(1.9rem, 3vw, 2.5rem); color: var(--navy); line-height: 1; letter-spacing: -.03em; }
.stat__value span { color: var(--brand); }
.stat__label { margin-top: 10px; font-size: .9rem; color: var(--muted); line-height: 1.45; }

/* ---------- 7. Sayfa başlığı (iç sayfalar) ---------- */
.page-hero {
  position: relative; color: #fff; overflow: hidden;
  padding: clamp(80px, 11vw, 140px) 0 clamp(60px, 8vw, 100px);
  background: var(--navy) center/cover no-repeat;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(11, 30, 54, .96) 0%, rgba(11, 30, 54, .8) 55%, rgba(11, 30, 54, .5) 100%);
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; bottom: -160px; width: 420px; height: 420px; border-radius: 50%;
  border: 60px solid rgba(225, 20, 27, .14);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: clamp(2rem, 4.2vw, 3.2rem); margin-bottom: 14px; }
.page-hero p { color: #c9d5e6; max-width: 640px; font-size: 1.08rem; margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: .86rem; margin-bottom: 20px; color: #9fb1c9; }
.breadcrumb a { color: #dfe7f2; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb li + li::before { content: "/"; margin-right: 8px; color: #6f86a5; }

/* ---------- 8. Kartlar / ızgaralar ---------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.service-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  color: var(--text);
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; color: var(--text); }
.service-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-soft); }
.service-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.service-card:hover .service-card__media img { transform: scale(1.06); }
.service-card__num {
  position: absolute; top: 16px; left: 16px; padding: 4px 10px; border-radius: 999px;
  background: rgba(11, 30, 54, .78); color: #fff; font-family: var(--font-head); font-size: .75rem; font-weight: 700; letter-spacing: .08em;
}
.service-card__body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.service-card__icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--brand); color: #fff; margin-top: -52px; margin-bottom: 18px; position: relative;
  box-shadow: 0 10px 20px -8px rgba(225, 20, 27, .6);
}
.service-card__icon svg { width: 26px; height: 26px; }
.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: .95rem; color: var(--muted); flex: 1; }
.service-card .link-arrow { margin-top: 8px; }

.feature {
  padding: 30px; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--line);
  transition: border-color .3s, box-shadow .3s;
}
.feature:hover { border-color: transparent; box-shadow: var(--shadow); }
.feature__icon {
  width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 20px;
  background: var(--blue-50); color: var(--blue);
}
.feature__icon--red { background: var(--brand-50); color: var(--brand); }
.feature__icon--green { background: var(--green-50); color: var(--green); }
.feature__icon svg { width: 26px; height: 26px; }
.feature h3 { font-size: 1.12rem; }
.feature p { font-size: .95rem; color: var(--muted); margin: 0; }

.section--navy .feature { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .1); }
.section--navy .feature:hover { background: rgba(255, 255, 255, .07); box-shadow: none; border-color: rgba(255, 255, 255, .2); }
.section--navy .feature p { color: #aebdd2; }
.section--navy .feature__icon { background: rgba(255, 255, 255, .08); color: #ff6b70; }

/* ---------- 9. Split (görsel + metin) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.split--reverse .split__media { order: 2; }
.split__media { position: relative; }
.split__media .img-main { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; }
.split__media .img-float {
  position: absolute; right: -24px; bottom: -36px; width: 46%; border-radius: var(--radius);
  border: 6px solid #fff; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover;
}
.experience-badge {
  position: absolute; left: -22px; top: 30px; background: var(--brand); color: #fff;
  padding: 20px 22px; border-radius: var(--radius); box-shadow: var(--shadow-lg); text-align: center;
}
.experience-badge strong { display: block; font-family: var(--font-head); font-size: 2.4rem; line-height: 1; font-weight: 800; }
.experience-badge span { font-size: .8rem; letter-spacing: .04em; opacity: .95; }

.check-list { display: grid; gap: 12px; margin: 26px 0 32px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--text); }
.check-list svg { flex: none; width: 22px; height: 22px; color: var(--green); margin-top: 2px; }
.check-list--2 { grid-template-columns: 1fr 1fr; }

/* ---------- 10. Süreç adımları ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 30px 26px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-head); font-weight: 800; font-size: 2.6rem; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px var(--brand); display: block; margin-bottom: 18px;
}
.step h3 { font-size: 1.08rem; }
.step p { font-size: .93rem; color: var(--muted); margin: 0; }

/* ---------- 11. Referans şeridi ---------- */
.ref-marquee { overflow: hidden; position: relative; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.ref-marquee__track { display: flex; gap: 14px; width: max-content; animation: marquee 60s linear infinite; }
.ref-marquee:hover .ref-marquee__track { animation-play-state: paused; }
.ref-chip {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 20px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); font-family: var(--font-head); font-weight: 700; font-size: .9rem; color: var(--navy); white-space: nowrap;
}
.ref-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Referans listesi */
.ref-filter { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.ref-filter button {
  padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer;
  font-family: var(--font-head); font-weight: 600; font-size: .9rem; color: var(--navy); transition: all .2s var(--ease);
}
.ref-filter button:hover { border-color: var(--navy); }
.ref-filter button.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.ref-filter button span { opacity: .6; margin-left: 4px; font-weight: 500; }

.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ref-card {
  display: flex; gap: 16px; align-items: center; padding: 20px 22px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.ref-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-2px); }
.ref-card.is-hidden { display: none; }
.ref-card__avatar {
  flex: none; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--font-head); font-weight: 800; font-size: 1.05rem; color: #fff; background: var(--navy);
}
.ref-card[data-type="kompanzasyon"] .ref-card__avatar { background: var(--brand); }
.ref-card[data-type="danismanlik"] .ref-card__avatar { background: var(--blue); }
.ref-card[data-type="yg"] .ref-card__avatar { background: var(--green); }
.ref-card h3 { font-size: 1rem; margin: 0 0 4px; }
.ref-card span { font-size: .82rem; color: var(--muted); }

/* ---------- 12. Hizmet detay ---------- */
.service-layout { display: grid; grid-template-columns: 300px 1fr; gap: 48px; align-items: start; }
.service-nav { position: sticky; top: calc(var(--header-h) + 24px); }
.service-nav__box { background: var(--bg-soft); border-radius: var(--radius-lg); padding: 14px; border: 1px solid var(--line); }
.service-nav__title { font-family: var(--font-head); font-weight: 800; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); padding: 10px 12px 12px; }
.service-nav a {
  display: flex; align-items: center; gap: 12px; padding: 12px; border-radius: 12px;
  font-family: var(--font-head); font-weight: 600; font-size: .92rem; color: var(--navy); line-height: 1.3;
}
.service-nav a svg { width: 20px; height: 20px; color: var(--brand); flex: none; }
.service-nav a:hover { background: #fff; color: var(--brand); }
.service-nav a.is-current { background: #fff; color: var(--brand); box-shadow: var(--shadow-sm); }
.service-nav__cta { margin-top: 18px; padding: 26px; border-radius: var(--radius-lg); background: var(--navy); color: #c9d5e6; }
.service-nav__cta h4 { color: #fff; margin-bottom: 6px; }
.service-nav__cta p { font-size: .9rem; margin-bottom: 16px; }
.service-nav__cta a.phone { display: block; font-family: var(--font-head); font-weight: 800; font-size: 1.25rem; color: #fff; margin-bottom: 14px; padding: 0; }
.service-nav__cta a.phone:hover { background: none; color: #ff6b70; }

.service-block { scroll-margin-top: calc(var(--header-h) + 30px); padding-bottom: 56px; margin-bottom: 56px; border-bottom: 1px solid var(--line); }
.service-block:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.service-block__head { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.service-block__icon { width: 58px; height: 58px; flex: none; border-radius: 16px; display: grid; place-items: center; background: var(--brand-50); color: var(--brand); }
.service-block__icon svg { width: 28px; height: 28px; }
.service-block__head h2 { font-size: clamp(1.45rem, 2.4vw, 1.95rem); margin: 0; }
.service-block__head small { display: block; font-family: var(--font-head); font-weight: 700; color: var(--brand); letter-spacing: .12em; font-size: .74rem; text-transform: uppercase; margin-bottom: 4px; }
.service-block__media { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; margin: 26px 0; }
.service-block__media img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.service-block__media--single { grid-template-columns: 1fr; }
.service-block__media--single img { aspect-ratio: 21 / 9; }
.service-block p { font-size: 1.02rem; }

.info-box {
  display: flex; gap: 16px; padding: 22px 24px; border-radius: var(--radius); margin: 24px 0;
  background: var(--blue-50); border-left: 4px solid var(--blue); color: var(--ink);
}
.info-box svg { width: 24px; height: 24px; flex: none; color: var(--blue); margin-top: 2px; }
.info-box p { margin: 0; font-size: .97rem; }
.info-box--red { background: var(--brand-50); border-color: var(--brand); }
.info-box--red svg { color: var(--brand); }

.numbered { display: grid; gap: 12px; margin: 20px 0; counter-reset: num; }
.numbered li { display: flex; gap: 14px; align-items: center; padding: 16px 18px; background: var(--bg-soft); border-radius: 12px; font-weight: 500; color: var(--ink); }
.numbered li::before {
  counter-increment: num; content: counter(num);
  flex: none; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); color: #fff; font-family: var(--font-head); font-weight: 800; font-size: .9rem;
}

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
.tag { padding: 7px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: .85rem; font-weight: 600; color: var(--navy); }

/* ---------- 13. Galeri / Projeler ---------- */
.gallery-filter { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.gallery-filter button {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer;
  font-family: var(--font-head); font-weight: 600; font-size: .9rem; color: var(--navy); transition: all .2s var(--ease);
}
.gallery-filter button.is-active, .gallery-filter button:hover { background: var(--brand); color: #fff; border-color: var(--brand); }

.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gallery__item {
  position: relative; display: block; overflow: hidden; border-radius: var(--radius-lg); background: var(--navy);
  aspect-ratio: 4 / 3.2; cursor: zoom-in; border: 0; padding: 0; width: 100%;
}
.gallery__item.is-hidden { display: none; }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease), opacity .4s; }
.gallery__item:hover img { transform: scale(1.07); opacity: .75; }
.gallery__cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 22px 20px; text-align: left;
  background: linear-gradient(0deg, rgba(11, 30, 54, .92), transparent);
  color: #fff;
}
.gallery__cap small { display: block; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: #ff8a8e; font-weight: 700; margin-bottom: 4px; }
.gallery__cap strong { font-family: var(--font-head); font-size: 1.02rem; font-weight: 700; }
.gallery__zoom {
  position: absolute; top: 16px; right: 16px; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255, 255, 255, .92); color: var(--navy); display: grid; place-items: center;
  opacity: 0; transform: scale(.8); transition: all .3s var(--ease);
}
.gallery__zoom svg { width: 18px; height: 18px; }
.gallery__item:hover .gallery__zoom, .gallery__item:focus-visible .gallery__zoom { opacity: 1; transform: scale(1); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 500; background: rgba(6, 15, 28, .94);
  display: none; align-items: center; justify-content: center; padding: 60px 70px;
}
.lightbox.is-open { display: flex; animation: fadeIn .25s var(--ease); }
.lightbox__figure { margin: 0; max-width: 1100px; width: 100%; text-align: center; }
.lightbox__img { max-height: 76vh; width: auto; margin: 0 auto; border-radius: var(--radius); box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.lightbox__caption { color: #dfe7f2; margin-top: 18px; font-family: var(--font-head); font-weight: 600; }
.lightbox__counter { color: #8ea2bd; font-size: .85rem; margin-top: 4px; }
.lightbox__btn {
  position: absolute; width: 52px; height: 52px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .25);
  background: rgba(255, 255, 255, .06); color: #fff; cursor: pointer; display: grid; place-items: center; transition: background .2s;
}
.lightbox__btn:hover { background: var(--brand); border-color: var(--brand); }
.lightbox__btn svg { width: 22px; height: 22px; }
.lightbox__close { top: 20px; right: 20px; }
.lightbox__prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 16px; top: 50%; transform: translateY(-50%); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 14. Teknik dokümanlar ---------- */
.doc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.doc {
  display: flex; align-items: center; gap: 18px; padding: 22px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line); color: var(--ink); transition: all .25s var(--ease);
}
.doc:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-3px); color: var(--ink); }
.doc__type {
  flex: none; width: 56px; height: 64px; border-radius: 10px; display: grid; place-items: center;
  font-family: var(--font-head); font-weight: 800; font-size: .78rem; letter-spacing: .06em; color: #fff; position: relative;
}
.doc__type::after { content: ""; position: absolute; top: 0; right: 0; border-style: solid; border-width: 0 14px 14px 0; border-color: transparent #fff transparent transparent; opacity: .9; }
.doc__type--pdf { background: #d93025; }
.doc__type--doc { background: #2b62c0; }
.doc__type--xls { background: #1d8a4e; }
.doc__body { flex: 1; min-width: 0; }
.doc__body h3 { font-size: 1rem; margin: 0 0 4px; }
.doc__body p { font-size: .86rem; color: var(--muted); margin: 0; line-height: 1.5; }
.doc__dl {
  flex: none; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
  background: var(--bg-soft); color: var(--navy); transition: all .2s;
}
.doc:hover .doc__dl { background: var(--brand); color: #fff; }
.doc__dl svg { width: 20px; height: 20px; }

/* Hesaplayıcı */
.calc {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow);
}
.calc__form { padding: clamp(26px, 4vw, 44px); }
.calc__result {
  padding: clamp(26px, 4vw, 44px); background: var(--navy); color: #c9d5e6;
  display: flex; flex-direction: column; justify-content: center;
}
.calc__result h3 { color: #fff; }
.calc__value { font-family: var(--font-head); font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.4rem); color: #fff; line-height: 1; margin: 10px 0 6px; letter-spacing: -.03em; }
.calc__value small { font-size: 1.1rem; color: #ff8a8e; margin-left: 6px; letter-spacing: 0; }
.calc__note { font-size: .84rem; color: #8ea2bd; margin-top: 16px; }
.calc__meter { height: 10px; border-radius: 999px; background: rgba(255, 255, 255, .1); overflow: hidden; margin-top: 18px; }
.calc__meter span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--green), #5fd3a3); border-radius: 999px; transition: width .5s var(--ease); }
.calc__row { display: flex; justify-content: space-between; gap: 10px; font-size: .9rem; padding: 10px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.calc__row strong { color: #fff; font-family: var(--font-head); }

/* ---------- 15. Form ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field--full { grid-column: 1 / -1; }
.form-field label { font-family: var(--font-head); font-weight: 600; font-size: .88rem; color: var(--ink); }
.form-field label .req { color: var(--brand); }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 14px 16px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--bg-softer);
  font-size: .97rem; transition: border-color .2s, background .2s, box-shadow .2s;
}
.form-field textarea { min-height: 150px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(31, 111, 209, .12);
}
.form-field.has-error input, .form-field.has-error textarea { border-color: var(--brand); background: #fff; }
.form-field .error-msg { font-size: .8rem; color: var(--brand); display: none; }
.form-field.has-error .error-msg { display: block; }
.form-check { display: flex; gap: 12px; align-items: flex-start; font-size: .88rem; color: var(--muted); }
.form-check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--brand); flex: none; }
.form-status { display: none; padding: 16px 18px; border-radius: 12px; font-weight: 500; margin-top: 18px; }
.form-status.is-success { display: block; background: var(--green-50); color: #0b7a4f; }
.form-status.is-error { display: block; background: var(--brand-50); color: var(--brand-600); }
.hp-field { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }

/* İletişim */
.contact-layout { display: grid; grid-template-columns: 1fr 1.35fr; gap: 32px; align-items: start; }
.contact-cards { display: grid; gap: 16px; }
.contact-card { display: flex; gap: 18px; padding: 24px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.contact-card__icon { flex: none; width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--brand-50); color: var(--brand); }
.contact-card__icon svg { width: 24px; height: 24px; }
.contact-card h3 { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; font-weight: 700; }
.contact-card p, .contact-card a { margin: 0; font-family: var(--font-head); font-weight: 700; color: var(--ink); font-size: 1.05rem; line-height: 1.5; }
.contact-card a:hover { color: var(--brand); }
.contact-form { padding: clamp(26px, 4vw, 44px); border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.contact-form h2 { font-size: 1.7rem; }
.map-wrap { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); height: 440px; background: var(--bg-soft); }
.map-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- 16. CTA bandı ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  padding: clamp(40px, 6vw, 72px); color: #fff;
  background: linear-gradient(110deg, rgba(11, 30, 54, .97) 0%, rgba(16, 42, 74, .9) 55%, rgba(225, 20, 27, .82) 130%), url("https://images.unsplash.com/photo-1473341304170-971dccb5ac1e?auto=format&fit=crop&w=1600&q=70") center/cover;
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; align-items: center;
}
.cta-band h2 { color: #fff; margin-bottom: 10px; }
.cta-band p { color: #c9d5e6; margin: 0; font-size: 1.05rem; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }

/* ---------- 17. Haber / Duyuru ---------- */
.news-card { display: grid; grid-template-columns: 220px 1fr; gap: 28px; align-items: center; padding: 28px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.news-card__date { display: grid; place-items: center; text-align: center; height: 100%; min-height: 150px; border-radius: var(--radius); background: var(--navy); color: #fff; padding: 20px; }
.news-card__date strong { display: block; font-family: var(--font-head); font-size: 1.4rem; font-weight: 800; line-height: 1.2; }
.news-card__date span { font-size: .8rem; color: #aebdd2; letter-spacing: .1em; text-transform: uppercase; }
.news-card h3 { margin-bottom: 8px; }
.news-card p { color: var(--muted); font-size: .97rem; margin: 0; }

/* ---------- 18. Değerler / zaman çizelgesi ---------- */
.timeline { position: relative; display: grid; gap: 28px; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--brand), var(--blue)); border-radius: 2px; }
.timeline__item { position: relative; }
.timeline__item::before { content: ""; position: absolute; left: -34px; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 4px solid var(--brand); }
.timeline__item h3 { font-size: 1.05rem; margin-bottom: 4px; }
.timeline__item small { font-family: var(--font-head); font-weight: 700; color: var(--brand); letter-spacing: .1em; font-size: .78rem; text-transform: uppercase; }
.timeline__item p { margin: 6px 0 0; color: var(--muted); font-size: .95rem; }

.quote {
  position: relative; padding: clamp(30px, 4vw, 48px); border-radius: var(--radius-lg); background: var(--bg-soft);
  font-family: var(--font-head); font-size: clamp(1.15rem, 2vw, 1.45rem); font-weight: 600; color: var(--navy); line-height: 1.5;
}
.quote svg { width: 42px; height: 42px; color: var(--brand); margin-bottom: 14px; }
.quote footer { margin-top: 18px; font-family: var(--font-body); font-size: .92rem; font-weight: 500; color: var(--muted); }

/* ---------- 19. Footer ---------- */
.site-footer { background: #071526; color: #9fb1c9; font-size: .94rem; }
.footer-top { padding: clamp(56px, 8vw, 90px) 0 50px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.25fr; gap: 40px; }
.site-footer .brand { color: #fff; margin-bottom: 18px; }
.site-footer .brand__tag { color: #8ea2bd; }
.site-footer p { color: #9fb1c9; }
.footer-title { font-family: var(--font-head); color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 20px; letter-spacing: 0; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { color: #9fb1c9; display: inline-flex; align-items: center; gap: 8px; }
.footer-links a::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); opacity: .7; transition: opacity .2s; }
.footer-links a:hover { color: #fff; }
.footer-links a:hover::before { opacity: 1; }
.footer-contact { display: grid; gap: 14px; }
.footer-contact li { display: flex; gap: 12px; align-items: flex-start; }
.footer-contact svg { flex: none; width: 18px; height: 18px; margin-top: 4px; color: #ff6b70; }
.footer-contact a { color: #dfe7f2; }
.footer-contact a:hover { color: #fff; }

.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); }
.footer-bottom .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-top: 22px; padding-bottom: 22px; }
.footer-bottom small { color: #7e92ad; font-size: .86rem; }

/* Ajans imzası — ASD standardı: beyaz logo, kutusuz, yazısız */
.agency-sign { margin-left: auto; display: inline-flex; align-items: center; opacity: .78; transition: opacity .25s var(--ease); }
.agency-sign:hover { opacity: 1; }
.agency-sign img { height: 30px; width: auto; display: block; }

/* ---------- 20. Yardımcı bileşenler ---------- */
.float-actions { position: fixed; right: 20px; bottom: 20px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff; border: 0; cursor: pointer;
  box-shadow: 0 12px 26px -10px rgba(0, 0, 0, .45); transition: transform .2s var(--ease), opacity .3s;
}
.float-btn:hover { transform: translateY(-3px); color: #fff; }
.float-btn svg { width: 24px; height: 24px; }
.float-btn--wa { background: #25d366; }
.float-btn--call { background: var(--brand); }
.float-btn--top { background: var(--navy); opacity: 0; pointer-events: none; }
.float-btn--top.is-visible { opacity: 1; pointer-events: auto; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.no-js .reveal { opacity: 1; transform: none; }

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }

/* 404 */
.error-page { min-height: 70vh; display: grid; place-items: center; text-align: center; padding: 80px 0; }
.error-page__code { font-family: var(--font-head); font-weight: 800; font-size: clamp(6rem, 18vw, 11rem); line-height: 1; color: transparent; -webkit-text-stroke: 3px var(--brand); letter-spacing: -.04em; }

/* ---------- 21. Duyarlı (responsive) ---------- */
@media (max-width: 1180px) {
  .nav__link { padding: 10px 10px; font-size: .9rem; }
  .nav__cta { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 1024px) {
  :root { --header-h: 74px; }
  .nav-toggle { display: grid; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0; height: 100vh; height: 100dvh;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 18px 20px 160px; overflow-y: auto; overscroll-behavior: contain;
    border-top: 1px solid var(--line);
    opacity: 0; transform: translateY(-12px); pointer-events: none; transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s; visibility: hidden;
  }
  .nav-open .nav { opacity: 1; transform: none; pointer-events: auto; visibility: visible; }
  .nav-open { overflow: hidden; }
  .site-header .container { position: static; }
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__item { border-bottom: 1px solid var(--line); }
  .nav__link { width: 100%; justify-content: space-between; padding: 16px 6px; font-size: 1.05rem; border-radius: 0; }
  .nav__link:hover { background: none; }
  .nav__link.is-active::after { display: none; }
  .mega {
    position: static; transform: none; width: 100%; box-shadow: none; border: 0; border-radius: 0;
    grid-template-columns: 1fr; display: none; opacity: 1; visibility: visible; pointer-events: auto;
  }
  .nav__item--has-mega:hover .mega { transform: none; }
  .nav__item--has-mega.is-open .mega { display: grid; transform: none; }
  .mega__grid { grid-template-columns: 1fr; padding: 0 0 12px; }
  .mega__aside { display: none; }
  .nav__cta { display: inline-flex; margin: 24px 0 0; }

  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-layout, .calc { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .split__media .img-float { right: 12px; }
  .experience-badge { left: 12px; }
  .service-layout { grid-template-columns: 1fr; }
  .service-nav { position: static; }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .cta-band { grid-template-columns: 1fr; }
  .cta-band__actions { justify-content: flex-start; }
  .hero__dots { display: none; }
}

@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .container { padding: 0 16px; }
  .topbar__list li:nth-child(3), .topbar__tag { display: none; }
  .topbar .container { justify-content: center; }
  .brand__mark { width: 44px; height: 44px; }
  .brand__name { font-size: 1.12rem; }
  .grid--2, .grid--3, .grid--4, .steps, .ref-grid, .doc-grid, .form-grid, .check-list--2 { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .stat { padding: 22px 18px; }
  .hero { min-height: 640px; }
  .hero .container { padding-bottom: 110px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .service-block__media { grid-template-columns: 1fr; }
  .split__media .img-float { display: none; }
  .news-card { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; align-items: flex-start; }
  .agency-sign { margin-left: 0; }
  .lightbox { padding: 70px 12px; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: 14px; transform: none; }
  .lightbox__prev { left: calc(50% - 64px); }
  .lightbox__next { right: calc(50% - 64px); }
  .map-wrap { height: 320px; }
  .float-actions { right: 14px; bottom: 14px; }
  .float-btn { width: 50px; height: 50px; }
}

/* Yazdırma */
@media print {
  .topbar, .site-header, .float-actions, .cta-band, 
  .reveal { opacity: 1; transform: none; }
  body { color: #000; }
}

/* ---------- 22. SSS (Sık Sorulan Sorular) ---------- */
.faq { display: grid; gap: 14px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: box-shadow .2s, border-color .2s; }
.faq details[open] { box-shadow: var(--shadow); border-color: transparent; }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 24px; display: flex; justify-content: space-between; gap: 16px; align-items: center;
  font-family: var(--font-head); font-weight: 700; color: var(--ink); font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: var(--bg-soft); color: var(--brand); font-size: 1.3rem; font-weight: 600; transition: transform .25s var(--ease), background .2s;
}
.faq details[open] summary::after { transform: rotate(45deg); background: var(--brand-50); }
.faq details > div { padding: 0 24px 22px; color: var(--muted); }
.faq details > div p:last-child { margin: 0; }

/* Sektörler */
.sector { display: flex; flex-direction: column; gap: 6px; padding: 26px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); height: 100%; }
.sector__icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--navy); color: #fff; margin-bottom: 12px; }
.sector__icon svg { width: 24px; height: 24px; }
.sector h3 { font-size: 1.05rem; margin-bottom: 4px; }
.sector p { font-size: .88rem; color: var(--muted); margin: 0; line-height: 1.6; }
.stat__value span[data-count] { color: inherit; }

/* ---------- Orijinal BKT logosu ---------- */
.brand__logo { height: 68px; width: auto; display: block; }
.site-footer .brand { background: #fff; padding: 10px 14px; border-radius: 14px; }
.site-footer .brand__logo { height: 70px; }
@media (max-width: 720px) {
  .brand__logo { height: 52px; }
}

/* ---------- 23. E-Katalog ---------- */
.catalog-cover { display: block; width: min(100%, 400px); margin: 0 auto; border-radius: 6px; overflow: hidden; box-shadow: 0 40px 70px -30px rgba(11, 30, 54, .55), 0 0 0 1px rgba(11, 30, 54, .06); transform: perspective(1400px) rotateY(-9deg); transition: transform .5s var(--ease); }
.catalog-cover:hover { transform: perspective(1400px) rotateY(0deg); }
.catalog-cover img { width: 100%; height: auto; }

.catalog-strip { display: grid; grid-template-columns: 220px 1fr; gap: clamp(28px, 5vw, 60px); align-items: center; padding: clamp(28px, 4vw, 44px); background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.catalog-strip__cover { display: block; border-radius: 4px; overflow: hidden; box-shadow: 0 24px 44px -22px rgba(11, 30, 54, .5); }
.catalog-strip h2 { margin-bottom: 10px; }
.catalog-strip p { color: var(--muted); }

.ek-section { padding-top: clamp(40px, 6vw, 70px); background: linear-gradient(var(--bg-soft), #fff); }
.ek-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.ek-toolbar__group { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.ek-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; min-width: 48px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--navy); cursor: pointer; font-family: var(--font-head); font-weight: 700; font-size: .9rem; transition: border-color .2s, background .2s, color .2s; }
.ek-btn:hover { border-color: var(--navy); }
.ek-btn:disabled { opacity: .4; cursor: default; }
.ek-btn svg { width: 20px; height: 20px; }
.ek-count { font-family: var(--font-head); font-size: 1rem; color: var(--muted); min-width: 70px; text-align: center; font-variant-numeric: tabular-nums; }
.ek-count strong { color: var(--navy); font-size: 1.15rem; }
.ek-download small { font-weight: 500; opacity: .75; }
.ek-stage { position: relative; display: flex; justify-content: center; padding: clamp(14px, 3vw, 34px); border-radius: var(--radius-lg); background: var(--navy) radial-gradient(circle at 50% 0%, #16365e 0%, var(--navy) 70%); min-height: 300px; }
.ek-stage:fullscreen { align-items: center; border-radius: 0; padding: 2vh 2vw; }
.ek-book { width: 100%; max-width: min(1180px, calc((100vh - 270px) * 1.414)) !important; margin: 0 auto; }
.ek-stage:fullscreen .ek-book { max-width: min(96vw, calc(96vh * 1.414)) !important; }
.ek-book .flip-page { background: #fff; overflow: hidden; }
.ek-book .flip-page img { width: 100%; height: 100%; object-fit: cover; display: block; user-select: none; -webkit-user-drag: none; }
/* Script çalışmazsa: sayfalar alt alta */
.ek-book:not(.is-ready) { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; max-width: 980px; }
.ek-book:not(.is-ready) .flip-page img { height: auto; }
.ek-hint { text-align: center; color: var(--muted); font-size: .88rem; margin: 16px 0 34px; }
.ek-thumbs { display: grid; grid-template-columns: repeat(12, 1fr); gap: 10px; }
.ek-thumb { position: relative; padding: 0; border: 2px solid transparent; border-radius: 6px; overflow: hidden; background: #fff; cursor: pointer; box-shadow: var(--shadow-sm); transition: border-color .2s, transform .2s; }
.ek-thumb:hover { transform: translateY(-2px); }
.ek-thumb.is-active { border-color: var(--brand); }
.ek-thumb img { width: 100%; height: auto; display: block; }
.ek-thumb span { position: absolute; left: 4px; bottom: 4px; padding: 1px 6px; border-radius: 999px; background: rgba(11, 30, 54, .82); color: #fff; font-family: var(--font-head); font-size: .68rem; font-weight: 700; }
@media (max-width: 1024px) {
  .ek-thumbs { grid-template-columns: repeat(6, 1fr); }
  .catalog-strip { grid-template-columns: 160px 1fr; }
}
@media (max-width: 720px) {
  .ek-thumbs { grid-template-columns: repeat(4, 1fr); }
  .ek-btn--text span { display: none; }
  .ek-toolbar { justify-content: center; }
  .ek-toolbar__group:last-child { width: 100%; }
  .ek-download { flex: 1 1 auto; }
  .ek-book { max-width: 100% !important; }
  .catalog-strip { grid-template-columns: 1fr; text-align: left; }
  .catalog-strip__cover { width: 160px; }
  .catalog-cover { width: min(80%, 320px); transform: none; }
  .ek-book:not(.is-ready) { grid-template-columns: 1fr; }
}