/* ============================================================
   Elegans Tel Çit — Kurumsal Tasarım Sistemi
   style.css  ·  saf CSS, harici bağımlılık yok
   ============================================================ */

/* ---------- 1. Tasarım Token'ları ---------- */
:root {
  /* Renkler */
  --c-ink: #161b22;          /* en koyu metin/antrasit */
  --c-dark: #1d2530;         /* header dark / hero taban */
  --c-dark-2: #11161e;       /* hero gradient ucu */
  --c-accent: #f5a623;       /* amber vurgu */
  --c-accent-2: #e08c00;     /* amber koyu */
  --c-accent-soft: #fff4e0;  /* amber açık zemin */
  --c-text: #3a414c;         /* gövde metni */
  --c-muted: #717b8a;        /* ikincil metin */
  --c-bg: #ffffff;
  --c-soft: #f5f7fa;         /* açık gri zemin */
  --c-soft-2: #eef1f6;
  --c-line: #e4e8ef;         /* ince çizgi */
  --c-wa: #25d366;           /* whatsapp yeşili */
  --c-wa-d: #1eb558;

  /* Gölgeler */
  --sh-sm: 0 1px 2px rgba(22,27,34,.06), 0 1px 3px rgba(22,27,34,.05);
  --sh: 0 6px 18px rgba(22,27,34,.07);
  --sh-lg: 0 18px 44px rgba(22,27,34,.13);

  /* Form */
  --radius: 16px;
  --radius-md: 12px;
  --radius-sm: 9px;
  --t: .22s cubic-bezier(.4,0,.2,1);
  --container: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

/* ---------- 2. Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; overflow-x: clip; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; }

h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.18; font-weight: 800; letter-spacing: -.02em; }
h1 { font-size: clamp(2.05rem, 1.3rem + 3.4vw, 3.35rem); }
h2 { font-size: clamp(1.6rem, 1.1rem + 2vw, 2.4rem); }
h3 { font-size: 1.18rem; letter-spacing: -.01em; }
p { color: var(--c-text); }

:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- 3. Layout yardımcıları ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 22px; }
.section { padding: clamp(56px, 4vw + 30px, 92px) 0; }
.section--alt { background: var(--c-soft); }
.text-center { text-align: center; }

.section-head { max-width: 740px; margin: 0 auto clamp(36px, 4vw, 56px); text-align: center; }
.section-head h2 { margin-top: 6px; }
.section-head p { color: var(--c-muted); margin-top: 14px; font-size: 1.08rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--c-accent-2); font-weight: 700; font-size: .78rem;
  text-transform: uppercase; letter-spacing: .12em;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--c-accent); border-radius: 2px; }
.section-head .eyebrow::before { display: none; }
.section-head .eyebrow { justify-content: center; }

/* ---------- 4. Butonlar ---------- */
.btn {
  --btn-bg: var(--c-ink); --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 26px; border-radius: var(--radius-sm);
  font-weight: 650; font-size: .98rem; line-height: 1; white-space: nowrap;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform var(--t), box-shadow var(--t), background var(--t), border-color var(--t);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--sh); }
.btn:active { transform: translateY(0); }
.btn--primary { --btn-bg: var(--c-accent); --btn-fg: var(--c-ink); }
.btn--primary:hover { --btn-bg: var(--c-accent-2); }
.btn--dark { --btn-bg: var(--c-ink); --btn-fg: #fff; }
.btn--dark:hover { --btn-bg: #000; }
.btn--wa { --btn-bg: var(--c-wa); --btn-fg: #fff; }
.btn--wa:hover { --btn-bg: var(--c-wa-d); }
.btn--light { --btn-bg: #fff; --btn-fg: var(--c-ink); border-color: rgba(255,255,255,.25); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--c-ink); border-color: var(--c-line); }
.btn--ghost:hover { border-color: var(--c-ink); background: var(--c-soft); }
.btn--block { width: 100%; }
.btn--sm { padding: 11px 18px; font-size: .9rem; }

/* ---------- 5. Üst Bar ---------- */
.topbar { background: var(--c-dark-2); color: #c6ccd6; font-size: .86rem; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 40px; padding-block: 7px; flex-wrap: wrap; }
.topbar__left { display: flex; gap: 22px; flex-wrap: wrap; }
.topbar__item { display: inline-flex; align-items: center; gap: 7px; transition: color var(--t); }
.topbar a:hover { color: var(--c-accent); }
.topbar__right { color: var(--c-accent); font-weight: 600; display: inline-flex; align-items: center; gap: 7px; }

/* ---------- 6. Header ---------- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--c-line); transition: box-shadow var(--t); }
.header.scrolled { box-shadow: var(--sh); }
.header .container { display: flex; align-items: center; justify-content: space-between; gap: 22px; height: 82px; }

/* Logo (kare, siyah zeminli logo beyaz header üzerinde) */
.site-logo { display: inline-flex; align-items: center; flex-shrink: 0; }
.site-logo img { height: 60px; width: auto; max-width: 210px; object-fit: contain; display: block; border-radius: 11px; }

.nav { display: flex; align-items: center; gap: 2px; }
.nav a { position: relative; padding: 10px 14px; border-radius: 8px; font-weight: 550; font-size: .96rem; color: var(--c-text); transition: color var(--t), background var(--t); }
.nav a:hover { color: var(--c-ink); background: var(--c-soft); }
.nav a.active { color: var(--c-accent-2); font-weight: 700; }
.nav a.active::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--c-accent); border-radius: 2px; }

.header__cta { display: flex; align-items: center; gap: 10px; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 10px; }
.hamburger span { width: 25px; height: 2.5px; background: var(--c-ink); border-radius: 3px; transition: transform var(--t), opacity var(--t); }
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- 7. Hero ---------- */
.hero { position: relative; color: #fff; background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-dark-2) 100%); overflow: hidden; padding: clamp(56px, 5vw, 92px) 0; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 46px 46px; -webkit-mask-image: radial-gradient(ellipse 80% 70% at 30% 30%, #000, transparent 75%); mask-image: radial-gradient(ellipse 80% 70% at 30% 30%, #000, transparent 75%); }
.hero::after { content: ""; position: absolute; top: -120px; right: -120px; width: 460px; height: 460px; background: radial-gradient(circle, rgba(245,166,35,.22), transparent 65%); pointer-events: none; }
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(36px, 4vw, 60px); align-items: center; }
.hero__badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(245,166,35,.14); border: 1px solid rgba(245,166,35,.35); color: var(--c-accent); padding: 7px 14px; border-radius: 30px; font-size: .82rem; font-weight: 600; margin-bottom: 22px; }
.hero h1 { color: #fff; }
.hero h1 span { color: var(--c-accent); }
.hero__sub { color: #c2cad6; font-size: 1.14rem; margin: 18px 0 26px; max-width: 560px; }
.hero__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__trust { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 28px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); }
.hero__trust li { display: inline-flex; align-items: center; gap: 9px; color: #d6dce5; font-size: .96rem; font-weight: 500; }
.hero__trust li::before { content: "✓"; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: rgba(37,211,102,.16); color: var(--c-wa); font-size: .8rem; font-weight: 800; }

.hero__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-md); padding: 22px; transition: transform var(--t), background var(--t); }
.stat-card:hover { transform: translateY(-3px); background: rgba(255,255,255,.09); }
.stat-card .icon { font-size: 1.7rem; margin-bottom: 10px; }
.stat-card h3 { color: #fff; font-size: 1.04rem; margin-bottom: 3px; }
.stat-card p { color: #a7b0bd; font-size: .87rem; }

/* ---------- 8. Sayfa Başlığı (iç sayfalar) ---------- */
.page-head { position: relative; color: #fff; text-align: center; background: linear-gradient(135deg, var(--c-dark) 0%, var(--c-dark-2) 100%); padding: clamp(48px, 5vw, 72px) 0; overflow: hidden; }
.page-head::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 46px 46px; -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000, transparent 70%); mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000, transparent 70%); }
.page-head .container { position: relative; z-index: 1; }
.page-head h1 { color: #fff; }
.page-head p { color: #c2cad6; max-width: 700px; margin: 12px auto 0; font-size: 1.08rem; }
.breadcrumb { font-size: .85rem; color: #97a1af; margin-top: 18px; }
.breadcrumb a { transition: color var(--t); }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb span { color: var(--c-accent); }

/* ---------- 9. Grid & Kartlar ---------- */
.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); }

.card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; transition: transform var(--t), box-shadow var(--t), border-color var(--t); }
.card:hover { transform: translateY(-5px); box-shadow: var(--sh-lg); border-color: transparent; }
.card__media { aspect-ratio: 16 / 10; background: var(--c-soft-2); position: relative; overflow: hidden; }
.card__media::before { content: attr(data-label); position: absolute; inset: 0; z-index: 0; display: grid; place-items: center; text-align: center; padding: 12px; background: linear-gradient(135deg, #eef1f6, #e3e8f0); color: var(--c-muted); font-weight: 600; font-size: .92rem; letter-spacing: .01em; }
.card__media img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card:hover .card__media img { transform: scale(1.06); }
.card__body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.card__body h3 { margin-bottom: 9px; }
.card__body p { color: var(--c-muted); font-size: .96rem; margin-bottom: 16px; }
.card__tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.tag { font-size: .76rem; background: var(--c-soft); color: var(--c-muted); padding: 5px 11px; border-radius: 30px; font-weight: 550; }
.card__actions { margin-top: auto; display: flex; gap: 9px; flex-wrap: wrap; }
.card__actions .btn { flex: 1; }

/* Özellik kartları (neden biz / hizmetler / bölge) */
.feature { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 30px 26px; transition: transform var(--t), box-shadow var(--t), border-color var(--t); }
.feature:hover { transform: translateY(-4px); box-shadow: var(--sh); border-color: transparent; }
.feature .icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 14px; background: var(--c-accent-soft); color: var(--c-accent-2); font-size: 1.55rem; margin-bottom: 18px; }
.feature h3 { margin-bottom: 9px; font-size: 1.12rem; }
.feature p { color: var(--c-muted); font-size: .96rem; }

/* Uygulama alanları */
.pill-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pill { display: flex; flex-direction: column; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-md); padding: 24px 16px; text-align: center; font-weight: 650; color: var(--c-ink); transition: transform var(--t), background var(--t), color var(--t), border-color var(--t); }
.pill:hover { transform: translateY(-4px); background: var(--c-ink); color: #fff; border-color: var(--c-ink); }
.pill .icon { font-size: 1.85rem; }

/* ---------- 10. Süreç Adımları ---------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.step { position: relative; text-align: center; }
.step:not(:last-child)::after { content: ""; position: absolute; top: 27px; left: calc(50% + 36px); right: calc(-50% + 36px); height: 2px; background: repeating-linear-gradient(90deg, var(--c-line) 0 7px, transparent 7px 14px); }
.step__num { position: relative; z-index: 1; width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 50%; background: #fff; color: var(--c-ink); display: grid; place-items: center; font-weight: 800; font-size: 1.3rem; border: 2px solid var(--c-accent); box-shadow: 0 0 0 5px var(--c-accent-soft); }
.step h3 { font-size: 1.02rem; margin-bottom: 6px; }
.step p { font-size: .88rem; color: var(--c-muted); }

/* ---------- 11. Chip listesi (popüler ürünler) ---------- */
.chip-list { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.chip { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--c-line); border-radius: 40px; padding: 12px 22px; font-weight: 600; color: var(--c-ink); transition: transform var(--t), border-color var(--t), box-shadow var(--t), color var(--t); }
.chip:hover { transform: translateY(-2px); border-color: var(--c-accent); color: var(--c-accent-2); box-shadow: var(--sh); }

/* ---------- 12. Hizmet Bölgeleri ---------- */
.bolge-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.bolge-col h3 { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 2px solid var(--c-accent); }
.bolge-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.bolge-list a { display: flex; align-items: center; gap: 7px; background: #fff; border: 1px solid var(--c-line); border-radius: 9px; padding: 11px 13px; font-size: .92rem; font-weight: 550; transition: background var(--t), color var(--t), border-color var(--t); }
.bolge-list a:hover { background: var(--c-accent); border-color: var(--c-accent); color: var(--c-ink); }

/* ---------- 13. Galeri & Lightbox ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.gallery--home { grid-template-columns: repeat(3, 1fr); }
.gallery-item { position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius-md); overflow: hidden; cursor: pointer; background: var(--c-soft-2); border: 1px solid var(--c-line); }
.gallery-item::before { content: attr(data-label); position: absolute; inset: 0; z-index: 0; display: grid; place-items: center; text-align: center; padding: 10px; background: linear-gradient(135deg, #eef1f6, #e3e8f0); color: var(--c-muted); font-weight: 600; font-size: .86rem; }
.gallery-item img { position: relative; z-index: 1; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.gallery-item:hover img { transform: scale(1.07); }
.gallery-item::after { content: "🔍"; position: absolute; inset: 0; z-index: 2; display: grid; place-items: center; background: rgba(22,27,34,.5); color: #fff; font-size: 1.6rem; opacity: 0; transition: opacity var(--t); }
.gallery-item:hover::after { opacity: 1; }

.lightbox { position: fixed; inset: 0; z-index: 1000; background: rgba(10,13,18,.94); display: none; align-items: center; justify-content: center; padding: 28px; }
.lightbox.open { display: flex; }
.lightbox__img { max-width: 92vw; max-height: 86vh; min-width: 260px; min-height: 200px; border-radius: 10px; display: grid; place-items: center; background: linear-gradient(135deg, #2a3039, #20262f); color: #8a929c; font-weight: 600; overflow: hidden; }
.lightbox__img img { max-width: 92vw; max-height: 86vh; }
.lightbox__close, .lightbox__nav { position: absolute; display: grid; place-items: center; width: 50px; height: 50px; border-radius: 50%; background: rgba(255,255,255,.12); color: #fff; border: none; font-size: 1.4rem; cursor: pointer; transition: background var(--t), color var(--t); }
.lightbox__close { top: 22px; right: 22px; }
.lightbox__nav { top: 50%; transform: translateY(-50%); }
.lightbox__prev { left: 22px; }
.lightbox__next { right: 22px; }
.lightbox__close:hover, .lightbox__nav:hover { background: var(--c-accent); color: var(--c-ink); }

/* ---------- 14. CTA Bandı ---------- */
.cta-band { position: relative; overflow: hidden; text-align: center; color: var(--c-ink); background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%); border-radius: var(--radius); padding: clamp(38px, 5vw, 60px); }
.cta-band::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at 85% 20%, rgba(255,255,255,.25), transparent 45%); }
.cta-band > * { position: relative; z-index: 1; }
.cta-band h2 { color: var(--c-ink); }
.cta-band p { color: #5a4710; max-width: 640px; margin: 12px auto 26px; font-size: 1.08rem; }
.cta-band .btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- 15. Yorumlar ---------- */
.review { height: 100%; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 30px; }
.review__stars { color: var(--c-accent); margin-bottom: 14px; letter-spacing: 3px; }
.review p { color: var(--c-text); font-style: italic; margin-bottom: 20px; }
.review__author { display: flex; align-items: center; gap: 13px; }
.review__avatar { width: 46px; height: 46px; border-radius: 50%; background: var(--c-ink); color: var(--c-accent); display: grid; place-items: center; font-weight: 700; }
.review__author strong { display: block; color: var(--c-ink); }
.review__author span { font-size: .85rem; color: var(--c-muted); }

/* ---------- 16. SSS Akordeon ---------- */
.faq { max-width: 840px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; transition: border-color var(--t), box-shadow var(--t); }
.faq-item.open { border-color: var(--c-accent); box-shadow: var(--sh); }
.faq-q { width: 100%; text-align: left; background: none; border: none; cursor: pointer; padding: 20px 24px; font-size: 1.04rem; font-weight: 650; color: var(--c-ink); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q::after { content: "+"; font-size: 1.6rem; line-height: 1; color: var(--c-accent-2); transition: transform var(--t); flex-shrink: 0; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a p { padding: 0 24px 22px; color: var(--c-muted); }

/* ---------- 17. Formlar ---------- */
.form-grid { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-weight: 650; font-size: .9rem; color: var(--c-ink); }
.form-group input, .form-group select, .form-group textarea { padding: 13px 15px; border: 1.5px solid var(--c-line); border-radius: var(--radius-sm); font-size: .96rem; font-family: inherit; color: var(--c-ink); background: #fff; transition: border-color var(--t), box-shadow var(--t); }
.form-group input::placeholder, .form-group textarea::placeholder { color: #9aa3b1; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 4px rgba(245,166,35,.16); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group.error input, .form-group.error select, .form-group.error textarea { border-color: #e0524d; background: #fff7f7; }
.form-error { color: #d8443f; font-size: .82rem; display: none; }
.form-group.error .form-error { display: block; }
.form-success { display: none; background: #e8f8ee; border: 1px solid var(--c-wa); color: #157a3b; padding: 16px 20px; border-radius: var(--radius-sm); margin-bottom: 22px; font-weight: 600; }
.form-success.show { display: block; }

/* ---------- 18. İçerik blokları (iç sayfalar) ---------- */
.split { display: grid; grid-template-columns: 1.45fr 1fr; gap: 48px; align-items: start; }
.prose { max-width: 100%; }
.prose > p { font-size: 1.04rem; }
.prose h2 { margin: 40px 0 16px; }
.prose h2:first-child, .prose > .card__media + h2 { margin-top: 0; }
.prose h3 { margin: 26px 0 10px; }
.prose p { margin-bottom: 15px; }
.prose ul { margin: 0 0 18px; }
.prose ul li { position: relative; padding-left: 30px; margin-bottom: 11px; }
.prose ul li::before { content: "✓"; position: absolute; left: 0; top: 1px; display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--c-accent-soft); color: var(--c-accent-2); font-size: .72rem; font-weight: 800; }
.prose .faq { margin: 0; }

.info-box { background: var(--c-soft); border-left: 4px solid var(--c-accent); padding: 18px 22px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 22px 0; }
.info-box strong { color: var(--c-ink); }

.sidebar-card { position: sticky; top: 100px; background: linear-gradient(150deg, var(--c-dark), var(--c-dark-2)); color: #fff; border-radius: var(--radius); padding: 30px; overflow: hidden; }
.sidebar-card::before { content: ""; position: absolute; top: -80px; right: -80px; width: 220px; height: 220px; background: radial-gradient(circle, rgba(245,166,35,.18), transparent 65%); }
.sidebar-card > * { position: relative; z-index: 1; }
.sidebar-card h3 { color: #fff; margin-bottom: 8px; }
.sidebar-card p { color: #bcc4d0; font-size: .94rem; margin-bottom: 20px; }
.sidebar-card .btn { margin-bottom: 10px; }
.sidebar-card .btn:last-child { margin-bottom: 0; }

/* İletişim kartları */
.contact-card { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-md); padding: 22px; transition: transform var(--t), box-shadow var(--t); }
a.contact-card:hover { transform: translateY(-3px); box-shadow: var(--sh); }
.contact-card .icon { display: grid; place-items: center; width: 50px; height: 50px; border-radius: 13px; flex-shrink: 0; font-size: 1.4rem; background: var(--c-accent-soft); color: var(--c-accent-2); }
.contact-card h3 { font-size: 1.02rem; margin-bottom: 4px; }
.contact-card p, .contact-card a { color: var(--c-muted); font-size: .94rem; }
.contact-card a:hover { color: var(--c-accent-2); }

.map-placeholder { width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius-md); border: 1px solid var(--c-line); background: linear-gradient(135deg, #eef1f6, #e3e8f0); display: grid; place-items: center; text-align: center; padding: 20px; color: var(--c-muted); font-weight: 600; }

/* Blog kartları */
.blog-card .card__media { aspect-ratio: 16 / 9; }
.blog-meta { display: flex; gap: 14px; font-size: .8rem; color: var(--c-muted); margin-bottom: 10px; }
.blog-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* ---------- 19. Footer ---------- */
.footer { background: var(--c-dark-2); color: #9aa3b1; padding: clamp(48px, 5vw, 68px) 0 0; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
.footer a { color: #9aa3b1; font-size: .93rem; line-height: 2; transition: color var(--t); }
.footer a:hover { color: var(--c-accent); }
.footer__about p { font-size: .93rem; margin-bottom: 18px; line-height: 1.7; }
.footer-logo { height: 56px; width: auto; max-width: 190px; object-fit: contain; display: block; background: #fff; padding: 9px 13px; border-radius: 12px; margin-bottom: 18px; }
.footer__contact { display: grid; gap: 10px; }
.footer__contact li { display: flex; gap: 9px; font-size: .93rem; line-height: 1.5; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.09); padding: 22px 0; text-align: center; font-size: .85rem; color: #6c7585; }
.footer__bottom a { color: var(--c-accent); }

/* ---------- 20. Sabit WhatsApp Butonu ---------- */
.wa-float { position: fixed; bottom: 26px; right: 26px; z-index: 90; display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; background: var(--c-wa); color: #fff; font-size: 1.85rem; box-shadow: 0 8px 24px rgba(37,211,102,.5); transition: transform var(--t); }
.wa-float:hover { transform: scale(1.08); }
.wa-float::after { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: 0 0 0 0 rgba(37,211,102,.5); animation: wa-pulse 2.6s infinite; }
@keyframes wa-pulse { 70% { box-shadow: 0 0 0 16px rgba(37,211,102,0); } 100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); } }

/* ---------- 21. Mobil Alt İletişim Barı ---------- */
.mobile-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 95; background: #fff; border-top: 1px solid var(--c-line); box-shadow: 0 -4px 18px rgba(22,27,34,.1); }
.mobile-bar a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; padding: 9px 4px; font-size: .72rem; font-weight: 650; color: var(--c-text); }
.mobile-bar a .icon { font-size: 1.3rem; }
.mobile-bar a.wa { color: var(--c-wa-d); }
.mobile-bar a.teklif { background: var(--c-accent); color: var(--c-ink); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 992px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero__stats { max-width: 520px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .pill-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .step:nth-child(3)::after { display: none; }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .sidebar-card { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 30px; }

  /* Mobil menü */
  .nav { position: fixed; top: 0; right: -360px; bottom: 0; left: auto; width: min(330px, 86vw); height: 100vh; flex-direction: column; align-items: stretch; gap: 2px; padding: 92px 22px 28px; background: #fff; box-shadow: -8px 0 28px rgba(0,0,0,.16); transition: right .3s cubic-bezier(.4,0,.2,1); z-index: 110; overflow-y: auto; }
  .nav.open { right: 0; }
  .nav a { padding: 15px 16px; border-radius: 10px; font-size: 1rem; border-bottom: 1px solid var(--c-line); }
  .nav a.active::after { display: none; }
  .hamburger { display: flex; z-index: 120; }
  .header__cta .header-call { display: none; }
  /* overlay header'ın (z-index:100, stacking context) ALTINDA kalmalı; aksi halde
     header içindeki .nav drawer'ın üstüne binip link tıklamalarını yutar */
  .nav-overlay { position: fixed; inset: 0; background: rgba(10,13,18,.5); z-index: 99; opacity: 0; visibility: hidden; transition: opacity var(--t), visibility var(--t); }
  .nav-overlay.open { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }
}

@media (max-width: 768px) {
  .header .container { height: 70px; }
  .site-logo img { height: 48px; border-radius: 9px; }
}

@media (max-width: 640px) {
  .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .pill-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none !important; }
  .gallery, .gallery--home { grid-template-columns: repeat(2, 1fr); }
  .bolge-wrap { grid-template-columns: 1fr; }
  .bolge-list { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .hero__btns .btn, .cta-band .btns .btn { flex: 1 1 100%; }
  .topbar__hide { display: none; }
  .header__cta .header-call { display: none; }

  /* Sabit alt bar görünür; içerik üstünü kapatmasın */
  .mobile-bar { display: flex; }
  .wa-float { bottom: 82px; width: 54px; height: 54px; font-size: 1.6rem; }
  body { padding-bottom: 66px; }
}

/* ---------- Erişilebilirlik ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}