/**
 * assets/css/style.css — Zaref Mühendislik
 * Ubden® Design System — Ubden Design Tokens
 * Powered by Ubden® | www.ubden.com
 */

/* ─── Tokens ─────────────────────────────────────────────────── */
:root {
  --bg:            #ffffff;
  --surface:       #f5f5f5;
  --fg:            #000000;
  --muted:         #8c8c8c;
  --border:        #dbdbdb;
  --accent:        #dc2626;
  --accent-hover:  color-mix(in oklab, #dc2626, black 12%);
  --accent-on:     #ffffff;
  --font-display:  "Inter", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body:     "Inter", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --radius:        8px;
  --radius-md:     12px;
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px;
  --space-12: 48px; --space-20: 80px;
  --container-max: 1200px;
  --motion-fast: 150ms;
  --motion-base: 200ms;
  --ease: cubic-bezier(0.2, 0, 0, 1);
}

/* ─── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px; line-height: 1.5;
  color: var(--fg); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ─── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ─── Header ─────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg); border-bottom: 1px solid var(--border);
  height: 72px; display: flex; align-items: center;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.logo { display: flex; align-items: center; gap: var(--space-3); font-weight: 700; }
.logo-img { height: 34px; width: auto; display: block; }
.logo-mark {
  width: 36px; height: 36px; background: var(--fg); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--accent);
}
.logo-name { font-size: 16px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.logo-tag  { font-size: 11px; color: var(--muted); font-weight: 400; letter-spacing: 0.02em; }
.main-nav  { display: flex; align-items: center; gap: 2px; }
.main-nav a {
  font-size: 14px; font-weight: 500; color: var(--muted);
  padding: var(--space-2) var(--space-3); border-radius: var(--radius);
  transition: color var(--motion-fast) var(--ease), background var(--motion-fast) var(--ease);
  letter-spacing: 0.01em;
}
.main-nav a:hover, .main-nav a.active { color: var(--fg); background: var(--surface); }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: var(--space-2); background: none; border: none;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--fg);
  border-radius: 2px; transition: transform var(--motion-base) var(--ease), opacity var(--motion-fast) var(--ease);
}

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 10px var(--space-5); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 14px; font-weight: 600;
  letter-spacing: 0.01em; cursor: pointer; border: 1px solid transparent;
  transition: background var(--motion-fast) var(--ease),
              color var(--motion-fast) var(--ease),
              transform var(--motion-fast) var(--ease),
              box-shadow var(--motion-fast) var(--ease),
              border-color var(--motion-fast) var(--ease);
  text-decoration: none; white-space: nowrap;
}
.btn-primary {
  background: var(--accent); color: var(--accent-on); border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover); border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px color-mix(in oklab, var(--accent), transparent 55%);
}
.btn-secondary {
  background: transparent; color: var(--fg); border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface); border-color: color-mix(in oklab, var(--fg), transparent 60%); }
.btn-sm { padding: 8px 14px; font-size: 13px; }
.btn-accent-inv {
  background: var(--accent); color: var(--accent-on); border-color: var(--accent);
}
.btn-accent-inv:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-1px); }
.btn-ghost-inv {
  background: transparent;
  color: color-mix(in oklab, #ffffff, transparent 20%);
  border-color: color-mix(in oklab, #ffffff, transparent 70%);
}
.btn-ghost-inv:hover {
  background: color-mix(in oklab, #ffffff, transparent 88%);
  color: #ffffff;
  border-color: color-mix(in oklab, #ffffff, transparent 45%);
}

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  background:
    linear-gradient(180deg, rgba(0,0,0,.80) 0%, rgba(0,0,0,.90) 55%, #000000 100%),
    url('/assets/img/hero-bg.jpg') center 30% / cover no-repeat;
  color: #ffffff;
  padding: 96px 0 80px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -30%; right: -8%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent), transparent 72%) 0%, transparent 65%);
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 480px; gap: var(--space-20); align-items: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-5);
}
.hero-eyebrow::before {
  content: ''; display: block; width: 20px; height: 2px;
  background: var(--accent); border-radius: 2px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.5vw, 60px);
  font-weight: 700; line-height: 1.08; letter-spacing: -0.02em;
  color: #ffffff; margin-bottom: var(--space-5);
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-lead {
  font-size: 18px; line-height: 1.65;
  color: color-mix(in oklab, #ffffff, transparent 35%);
  margin-bottom: var(--space-8); max-width: 500px;
}
.hero-actions { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }
.hero-divider {
  margin-top: var(--space-8); padding-top: var(--space-8);
  border-top: 1px solid color-mix(in oklab, #ffffff, transparent 84%);
  display: flex; gap: var(--space-8); flex-wrap: wrap;
}
.hero-contact-item { display: flex; align-items: center; gap: var(--space-3); }
.hero-contact-icon {
  width: 38px; height: 38px;
  border: 1px solid color-mix(in oklab, #ffffff, transparent 75%);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: color-mix(in oklab, #ffffff, transparent 20%);
}
.hero-contact-lbl { font-size: 11px; letter-spacing: 0.03em; color: color-mix(in oklab, #ffffff, transparent 52%); line-height: 1; margin-bottom: 5px; }
.hero-contact-val { font-size: 14px; font-weight: 600; color: #ffffff; }
.hero-visual { position: relative; height: 420px; }
.hv-card {
  position: absolute;
  background: color-mix(in oklab, #ffffff, transparent 88%);
  border: 1px solid color-mix(in oklab, #ffffff, transparent 78%);
  border-radius: var(--radius-md); padding: var(--space-5); backdrop-filter: blur(12px);
}
.hv-main { top: 0; left: 0; right: 50px; padding: var(--space-6); }
.hv-side { bottom: 64px; right: 0; width: 180px; }
.hv-bot  { bottom: 0; left: 16px; width: 220px; }
.hv-num  { font-size: 42px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; color: #ffffff; margin-bottom: var(--space-2); }
.hv-num em { font-style: normal; color: var(--accent); }
.hv-lbl  { font-size: 13px; color: color-mix(in oklab, #ffffff, transparent 42%); }
.hv-list { margin-top: var(--space-5); display: flex; flex-direction: column; gap: var(--space-3); }
.hv-row  { display: flex; align-items: center; gap: var(--space-3); font-size: 14px; color: color-mix(in oklab, #ffffff, transparent 20%); }
.hv-dot  { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* ─── Section commons ────────────────────────────────────────── */
section { padding: var(--space-20) 0; }
.section-eyebrow {
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-4);
}
.section-title {
  font-family: var(--font-display); font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700; line-height: 1.15; letter-spacing: -0.02em;
  color: var(--fg); margin-bottom: var(--space-4);
}
.section-lead { font-size: 17px; color: var(--muted); line-height: 1.65; max-width: 540px; }
.section-header-2col {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-8); align-items: end; margin-bottom: var(--space-12);
}

/* ─── Services ───────────────────────────────────────────────── */
.services-section { background: var(--surface); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.svc-card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4);
  transition: border-color var(--motion-base) var(--ease),
              box-shadow var(--motion-base) var(--ease),
              transform var(--motion-base) var(--ease);
}
.svc-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px color-mix(in oklab, var(--accent), transparent 82%);
  transform: translateY(-2px);
}
.svc-card-dark { background: var(--fg); border-color: var(--fg); }
.svc-icon {
  width: 48px; height: 48px;
  background: color-mix(in oklab, var(--accent), transparent 88%);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent); flex-shrink: 0;
}
.svc-icon-inv { background: color-mix(in oklab, var(--accent), transparent 75%); }
.svc-title     { font-size: 17px; font-weight: 600; color: var(--fg); letter-spacing: -0.01em; }
.svc-title-inv { color: #ffffff; }
.svc-desc      { font-size: 14px; color: var(--muted); line-height: 1.65; flex: 1; }
.svc-desc-inv  { color: color-mix(in oklab, #ffffff, transparent 40%); }
.svc-link {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 13px; font-weight: 600; color: var(--accent); margin-top: auto;
}
.svc-link svg { transition: transform var(--motion-fast) var(--ease); }
.svc-card:hover .svc-link svg { transform: translateX(3px); }

/* ─── About ──────────────────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-20); align-items: center; }
.about-img-wrap { position: relative; }
.about-img-box {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  aspect-ratio: 4/3; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface);
}
.about-img-box img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-img-inner {
  display: flex; flex-direction: column;
  align-items: center; gap: var(--space-4);
  color: var(--muted); text-align: center; padding: var(--space-8);
}
.about-img-inner p { font-size: 14px; }
.about-badge {
  position: absolute; bottom: -18px; right: -18px;
  background: var(--accent); color: var(--accent-on);
  border-radius: var(--radius-md); padding: var(--space-5) var(--space-6);
  box-shadow: 0 6px 20px color-mix(in oklab, var(--accent), transparent 50%);
  min-width: 140px;
}
.about-badge-num  { font-size: 34px; font-weight: 700; letter-spacing: -0.02em; line-height: 1; }
.about-badge-text { font-size: 12px; opacity: 0.85; margin-top: 5px; }
.about-features   { display: flex; flex-direction: column; gap: var(--space-5); margin-top: var(--space-8); }
.about-feat { display: flex; align-items: flex-start; gap: var(--space-4); }
.about-feat-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: color-mix(in oklab, var(--accent), transparent 88%);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.about-feat-title { font-size: 15px; font-weight: 600; color: var(--fg); margin-bottom: 4px; }
.about-feat-desc  { font-size: 14px; color: var(--muted); line-height: 1.6; }
.about-actions    { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-8); }

/* ─── Stats ──────────────────────────────────────────────────── */
.stats-section { background: var(--fg); }
.stats-head { text-align: center; margin-bottom: var(--space-12); }
.stats-head .section-eyebrow { color: color-mix(in oklab, #ffffff, transparent 35%); }
.stats-head .section-title   { color: #ffffff; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: color-mix(in oklab, #ffffff, transparent 84%);
  border-radius: var(--radius-md); overflow: hidden;
}
.stat-cell { background: var(--fg); padding: var(--space-8); text-align: center; }
.stat-num  { font-size: 52px; font-weight: 700; letter-spacing: -0.03em; line-height: 1; color: #ffffff; margin-bottom: var(--space-3); }
.stat-num em { font-style: normal; color: var(--accent); }
.stat-lbl  { font-size: 14px; color: color-mix(in oklab, #ffffff, transparent 45%); }

/* ─── CTA ────────────────────────────────────────────────────── */
.cta-wrap  { background: var(--surface); }
.cta-inner {
  background: var(--fg); border-radius: var(--radius-md);
  padding: var(--space-12) var(--space-20);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-8); position: relative; overflow: hidden;
}
.cta-inner::before {
  content: ''; position: absolute; top: -50%; right: 5%;
  width: 360px; height: 360px;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent), transparent 68%) 0%, transparent 65%);
  pointer-events: none;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 32px); font-weight: 700;
  letter-spacing: -0.02em; color: #ffffff; margin-bottom: var(--space-3); line-height: 1.2;
}
.cta-desc { font-size: 16px; color: color-mix(in oklab, #ffffff, transparent 45%); }
.cta-btns { display: flex; gap: var(--space-3); flex-shrink: 0; flex-wrap: wrap; }

/* ─── Contact ────────────────────────────────────────────────── */
.contact-grid  { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); align-items: start; }
.contact-items { display: flex; flex-direction: column; gap: var(--space-6); }
.contact-item  { display: flex; align-items: flex-start; gap: var(--space-4); }
.contact-icon  {
  width: 44px; height: 44px; flex-shrink: 0;
  background: color-mix(in oklab, var(--accent), transparent 88%);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.contact-lbl { font-size: 11px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); margin-bottom: 5px; line-height: 1; }
.contact-val { font-size: 16px; font-weight: 500; color: var(--fg); line-height: 1.6; }
.contact-val a { color: var(--accent); }
.map-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); aspect-ratio: 16/9; overflow: hidden; margin-top: var(--space-6);
}
.map-box iframe { width: 100%; height: 100%; border: none; display: block; }
.cf-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-6); }
.cf-title { font-size: 20px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-5); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.fg { margin-bottom: var(--space-4); }
label { display: block; font-size: 13px; font-weight: 600; letter-spacing: 0.01em; margin-bottom: var(--space-2); color: var(--fg); }
input, select, textarea {
  width: 100%; padding: 10px var(--space-4);
  border: 1px solid var(--border); border-radius: var(--radius);
  font-family: var(--font-body); font-size: 15px;
  color: var(--fg); background: var(--bg);
  transition: border-color var(--motion-fast) var(--ease), box-shadow var(--motion-fast) var(--ease);
  outline: none; appearance: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 80%);
}
textarea { resize: vertical; min-height: 120px; }
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238c8c8c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 40px;
}

/* ─── Footer ─────────────────────────────────────────────────── */
.site-footer { background: var(--fg); color: #ffffff; padding: var(--space-12) 0 var(--space-6); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-8); margin-bottom: var(--space-12); }
.footer-logo    { font-size: 18px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: var(--space-4); }
.footer-tagline { font-size: 14px; line-height: 1.65; color: color-mix(in oklab, #ffffff, transparent 45%); max-width: 280px; margin-bottom: var(--space-5); }
.footer-phone   { font-size: 15px; font-weight: 600; color: var(--accent); }
.footer-col-title { font-size: 11px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; color: color-mix(in oklab, #ffffff, transparent 52%); margin-bottom: var(--space-4); }
.footer-links   { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a { font-size: 14px; color: color-mix(in oklab, #ffffff, transparent 32%); transition: color var(--motion-fast) var(--ease); }
.footer-links a:hover { color: #ffffff; }
.footer-addr    { font-size: 13px; line-height: 1.7; color: color-mix(in oklab, #ffffff, transparent 38%); }
hr.divider      { border: none; border-top: 1px solid color-mix(in oklab, #ffffff, transparent 85%); margin-bottom: var(--space-6); }
.footer-bottom  { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.footer-copy    { font-size: 13px; color: color-mix(in oklab, #ffffff, transparent 56%); }
.footer-powered { display: flex; align-items: center; gap: 6px; font-size: 12px; color: color-mix(in oklab, #ffffff, transparent 56%); }
.footer-powered a { color: var(--accent); font-weight: 600; transition: opacity var(--motion-fast) var(--ease); }
.footer-powered a:hover { opacity: 0.8; }

/* ─── Service detail photo (hizmetler.php) ──────────────────────── */
.svc-photo {
  position: relative; border-radius: var(--radius-md); overflow: hidden;
  aspect-ratio: 4/3; border: 1px solid var(--border);
}
.svc-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.svc-photo-badge {
  position: absolute; bottom: var(--space-5); left: var(--space-5);
  width: 52px; height: 52px; border-radius: var(--radius);
  background: var(--accent); color: var(--accent-on);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

/* ─── Page hero (secondary pages) ───────────────────────────────── */
.page-hero {
  position: relative; overflow: hidden; color: #ffffff;
  padding: 64px 0 56px;
  background:
    linear-gradient(180deg, rgba(0,0,0,.78) 0%, rgba(0,0,0,.90) 100%),
    var(--page-hero-img, none) center / cover no-repeat;
}
.page-hero .section-eyebrow { color: var(--accent); }
.page-hero .section-title   { color: #ffffff; }
.page-hero .section-lead    { color: color-mix(in oklab, #ffffff, transparent 30%); }

/* ─── Team / portrait cards ──────────────────────────────────────── */
.team-card {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  overflow: hidden; background: var(--bg);
}
.team-card img { width: 100%; aspect-ratio: 4/5; object-fit: cover; display: block; }
.team-card-body { padding: var(--space-5); }
.team-card-name { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.team-card-role { font-size: 13px; color: var(--accent); font-weight: 600; margin-top: 2px; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .hero-grid, .about-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .section-header-2col { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid, .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .cta-inner { flex-direction: column; text-align: center; padding: var(--space-8) var(--space-6); }
  .cta-btns  { justify-content: center; }
}
@media (max-width: 639px) {
  .site-header { height: 64px; }
  .main-nav, .header-right-desktop { display: none !important; }
  .nav-toggle { display: flex; }
  .main-nav.is-open {
    display: flex; flex-direction: column; align-items: flex-start;
    position: fixed; inset: 64px 0 0 0;
    background: var(--bg); padding: var(--space-5);
    z-index: 99; border-top: 1px solid var(--border); gap: 4px;
  }
  .hero { padding: 60px 0 48px; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid    { grid-template-columns: 1fr 1fr; }
  .contact-grid  { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-divider  { flex-direction: column; gap: var(--space-4); }
  section { padding: var(--space-12) 0; }
  .cta-btns .btn { justify-content: center; width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .about-badge { position: static; margin-top: var(--space-5); display: inline-block; }
}