:root {
    --bg: #F2EEE6;
    --bg-raised: #E9E3D5;
    --ink: #201E1B;
    --ink-soft: #5B564C;
    --accent: #A85A26;
    --accent-ink: #FFFFFF;
    --line: #CDC5B2;
    --steel: #6B7280;

    --font-display: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

    box-sizing: border-box;
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
      --bg: #101E33;
      --bg-raised: #16283F;
      --ink: #ECF1F6;
      --ink-soft: #9FB0C4;
      --accent: #E0954E;
      --accent-ink: #101E33;
      --line: #2A3E58;
      --steel: #8194AC;
    }
  }
  :root[data-theme="dark"] {
    --bg: #101E33;
    --bg-raised: #16283F;
    --ink: #ECF1F6;
    --ink-soft: #9FB0C4;
    --accent: #E0954E;
    --accent-ink: #101E33;
    --line: #2A3E58;
    --steel: #8194AC;
  }

  html { scroll-padding-top: env(safe-area-inset-top, 0px); }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
  }

  img, svg { max-width: 100%; display: block; }

  a { color: inherit; }

  .wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 28px;
  }

  .hairline { border: none; border-top: 1px solid var(--line); margin: 0; }

  /* ---------- Header ---------- */
  header.site {
    position: sticky;
    top: env(safe-area-inset-top, 0px);
    z-index: 40;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
  }
  .nav-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    gap: 24px;
  }
  .wordmark {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 20px;
    letter-spacing: 0.02em;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1;
  }
  .logo-img {
    height: 68px;
    width: auto;
  }
  .footer-logo-img {
    height: 56px;
    width: auto;
  }
  .wordmark span.sub {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 10.5px;
    letter-spacing: 0.16em;
    color: var(--ink-soft);
    margin-top: 4px;
  }
  nav.primary {
    display: flex;
    gap: 28px;
    font-size: 14.5px;
    font-weight: 500;
  }
  nav.primary a {
    text-decoration: none;
    color: var(--ink-soft);
    padding: 6px 2px;
    border-bottom: 1px solid transparent;
  }
  nav.primary a:hover,
  nav.primary a:focus-visible {
    color: var(--ink);
    border-bottom-color: var(--accent);
  }
  .nav-contact {
    display: none;
  }
  @media (min-width: 900px) {
    .nav-contact {
      display: block;
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--ink-soft);
      white-space: nowrap;
    }
  }
  .menu-toggle { display: none; }
  @media (max-width: 780px) {
    nav.primary { display: none; }
    .menu-toggle {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: none;
      border: 1px solid var(--line);
      color: var(--ink);
      font-family: var(--font-body);
      font-size: 13px;
      padding: 8px 12px;
      cursor: pointer;
    }
    nav.primary.open {
      display: flex;
      flex-direction: column;
      gap: 0;
      position: absolute;
      left: 0; right: 0; top: 100%;
      background: var(--bg);
      border-bottom: 1px solid var(--line);
      padding: 4px 28px 18px;
    }
    nav.primary.open a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  }

  /* ---------- Hero ---------- */
  .hero {
    padding: 72px 0 64px;
    position: relative;
    overflow: hidden;
  }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
  }
  @media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; }
  }
  .kicker {
    font-size: 14.5px;
    color: var(--ink-soft);
    margin: 0 0 18px;
  }
  h1.hero-head {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(34px, 5.6vw, 58px);
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin: 0 0 26px;
  }
  .hero-lede {
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 46ch;
    margin: 0 0 34px;
  }
  .cta-row { display: flex; flex-wrap: wrap; gap: 14px; }
  .btn {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14.5px;
    text-decoration: none;
    padding: 14px 22px;
    border: 1px solid var(--ink);
    transition: none;
  }
  .btn-solid {
    background: var(--ink);
    color: var(--bg);
  }
  .btn-solid:hover, .btn-solid:focus-visible { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
  .btn-outline {
    background: transparent;
    color: var(--ink);
  }
  .btn-outline:hover, .btn-outline:focus-visible { border-color: var(--accent); color: var(--accent); }

  .hero-slideshow {
    position: relative;
    aspect-ratio: 21 / 20;
    border: 1px solid var(--line);
    background: #FDFCF9;
    overflow: hidden;
  }
  .hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.7s ease;
  }
  .hero-slide.active {
    opacity: 1;
    visibility: visible;
  }
  .hero-slide img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .hero-slide-label {
    position: relative;
    z-index: 1;
    margin: 0;
    padding: 34px 18px 14px;
    width: 100%;
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: #F2EEE6;
    background: linear-gradient(to top, rgba(20,18,15,0.78), transparent);
  }
  .hero-dots {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
  }
  .hero-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1px solid var(--steel);
    background: transparent;
    padding: 0;
    cursor: pointer;
  }
  @media (prefers-reduced-motion: no-preference) {
    .hero-head, .hero-lede, .cta-row, .hero-slideshow {
      opacity: 0;
      transform: translateY(10px);
      animation: rise 0.7s ease-out forwards;
    }
    .hero-lede { animation-delay: 0.1s; }
    .cta-row { animation-delay: 0.2s; }
    .hero-slideshow { animation-delay: 0.15s; }
  }
  @keyframes rise { to { opacity: 1; transform: translateY(0); } }

  /* ---------- Stats ---------- */
  .stats {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 40px 0;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  @media (max-width: 720px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
  }
  .stat-num {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: clamp(28px, 3.6vw, 40px);
    color: var(--accent);
  }
  .stat-label {
    font-size: 13.5px;
    color: var(--ink-soft);
    margin-top: 6px;
  }

  /* ---------- Section scaffolding ---------- */
  section { padding: 88px 0; }
  .section-head {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 40px;
    margin-bottom: 48px;
  }
  @media (max-width: 760px) {
    .section-head { grid-template-columns: 1fr; gap: 16px; }
  }
  .section-head h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(26px, 3.4vw, 36px);
    margin: 0;
    letter-spacing: -0.01em;
  }
  .section-head p {
    color: var(--ink-soft);
    margin: 0;
    max-width: 58ch;
    font-size: 16px;
  }

  /* ---------- About ---------- */
  .about-num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(64px, 11vw, 132px);
    line-height: 0.9;
    color: var(--bg-raised);
    -webkit-text-stroke: 1.5px var(--ink);
    color: transparent;
    margin: 0 0 12px;
  }

  /* ---------- Sector list ---------- */
  .sector-row {
    display: grid;
    grid-template-columns: 148px 1fr 1.9fr auto;
    gap: 22px;
    align-items: center;
    padding: 22px 0;
    border-top: 1px solid var(--line);
  }
  .sector-list { border-bottom: 1px solid var(--line); }
  @media (max-width: 760px) {
    .sector-row { grid-template-columns: 96px 1fr; gap: 14px 16px; }
    .sector-row .sector-tag { grid-column: 2; justify-self: start; }
  }

  /* Yer tutucu görseller: gerçek fotoğraflar geldiğinde bu img etiketlerinin
     sadece src ve alt değerlerini değiştirmeniz yeterli — yerleşim aynı kalır. */
  .photo-slot {
    position: relative;
    aspect-ratio: 1 / 1;
    border: 1px dashed var(--steel);
    background:
      repeating-linear-gradient(135deg, transparent 0 6px, var(--line) 6px 7px),
      var(--bg-raised);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .photo-slot .icon {
    width: 34px; height: 34px;
    color: var(--steel);
    opacity: 0.75;
  }
  .photo-slot .badge {
    position: absolute;
    top: 5px; left: 5px;
    font-family: var(--font-mono);
    font-size: 8.5px;
    letter-spacing: 0.03em;
    color: var(--steel);
    background: var(--bg);
    border: 1px solid var(--line);
    padding: 1.5px 4px;
  }
  .photo-slot.wide { aspect-ratio: 16/7; }

  .hq-photo {
    border: 1px solid var(--line);
    overflow: hidden;
  }
  .hq-photo img {
    display: block;
    width: 100%;
    height: auto;
  }

  .logo-plate {
    aspect-ratio: 1 / 1;
    border: 1px solid var(--line);
    background: #FDFCF9;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    transition: border-color 0.15s ease;
  }
  .logo-plate:hover,
  .logo-plate:focus-within {
    border-color: var(--accent);
  }
  .logo-plate a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
  }
  .logo-plate img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    transition: transform 0.15s ease;
  }
  .logo-plate:hover img,
  .logo-plate:focus-within img {
    transform: scale(1.06);
  }
  .sector-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 19px;
  }
  .sector-desc {
    color: var(--ink-soft);
    font-size: 15px;
    max-width: 62ch;
  }
  .sector-tag {
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--steel);
    white-space: nowrap;
    justify-self: end;
  }
  @media (max-width: 760px) { .sector-tag { justify-self: start; } }

  /* ---------- Values ---------- */
  .values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 40px;
    border-bottom: 1px solid var(--line);
  }
  @media (max-width: 700px) { .values-grid { grid-template-columns: 1fr; } }
  .value-row {
    display: flex;
    gap: 18px;
    padding: 22px 0;
    border-top: 1px solid var(--line);
  }
  .value-icon { flex: none; width: 26px; height: 26px; margin-top: 2px; color: var(--accent); }
  .value-title { font-family: var(--font-display); font-weight: 700; font-size: 16px; margin: 0 0 4px; }
  .value-text { color: var(--ink-soft); font-size: 14.5px; margin: 0; }

  .doc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-bottom: 1px solid var(--line);
  }
  .doc-list li {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.6;
  }
  .doc-list .n {
    flex: none;
    width: 26px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent);
    padding-top: 1px;
  }

  .legal-note {
    border: 1px dashed var(--steel);
    background: var(--bg-raised);
    padding: 16px 20px;
    font-size: 13.5px;
    color: var(--ink-soft);
    margin-bottom: 36px;
    max-width: 74ch;
  }
  .legal-body { max-width: 74ch; }
  .legal-body h3 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 17px;
    margin: 30px 0 10px;
  }
  .legal-body h3:first-child { margin-top: 0; }
  .legal-body p, .legal-body li {
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.7;
  }
  .legal-body ul { padding-left: 20px; margin: 8px 0; }
  .legal-body a { color: var(--accent); }

  /* ---------- Contact ---------- */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
  }
  @media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }
  .contact-item { margin-bottom: 26px; }
  .contact-label { font-size: 12.5px; color: var(--ink-soft); text-transform: none; letter-spacing: 0.02em; margin-bottom: 6px; }
  .contact-value { font-family: var(--font-display); font-weight: 700; font-size: 19px; }
  .contact-value a { text-decoration: none; }
  .contact-value a:hover { color: var(--accent); }
  .map-plate {
    position: relative;
    border: 1px solid var(--line);
    aspect-ratio: 4/3;
    overflow: hidden;
  }
  .map-embed {
    display: block;
    width: 100%;
    height: 100%;
  }
  .map-label {
    position: absolute;
    left: 14px;
    bottom: 14px;
    z-index: 1;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink);
    background: var(--bg);
    padding: 4px 9px;
    border: 1px solid var(--line);
  }

  /* ---------- Footer ---------- */
  footer.site {
    border-top: 1px solid var(--line);
    padding: 56px 0 32px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 0.9fr 1fr;
    gap: 32px;
    margin-bottom: 40px;
  }
  @media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
  .footer-col h5 { font-size: 13px; color: var(--ink-soft); font-weight: 500; margin: 0 0 14px; }
  .footer-col ul { list-style: none; margin: 0; padding: 0; }
  .footer-col li { margin-bottom: 9px; font-size: 14.5px; }
  .footer-col a { text-decoration: none; }
  .footer-col a:hover { color: var(--accent); }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--ink-soft);
    padding-top: 20px;
    border-top: 1px solid var(--line);
  }

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