/* =================================================================
   Akdeniz Belgelendirme ve Proje Danışmanlık
   Single stylesheet — the one source of truth for the site's look.
   Change colors, fonts and spacing from the :root variables below.
   ================================================================= */

/* -----------------------------------------------------------------
   1. Design tokens (change the whole look from here)
   ----------------------------------------------------------------- */
:root {
  /* Palette — IAF-inspired institutional blue with green accents */
  --primary: #005a9c;
  --primary-dark: #003f73;
  --primary-soft: #0077ba;
  --accent: #72b742;
  --accent-dark: #4d8f28;

  --ink: #182b3a;            /* main text */
  --muted: #5a6f7f;          /* secondary text */
  --bg: #ffffff;             /* page background */
  --surface: #f4f8fb;        /* pale blue section band */
  --surface-2: #eaf3f8;      /* stronger cool band */
  --border: #d9e6ef;         /* hairline borders */

  /* Typography */
  --font-base: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Spacing & shape */
  --container: 1140px;
  --radius: 8px;
  --radius-sm: 8px;
  --shadow: 0 12px 30px rgba(0, 90, 156, 0.1);
  --shadow-sm: 0 4px 14px rgba(0, 90, 156, 0.08);
  --section-y: 80px;         /* vertical rhythm for sections */
  --transition: 180ms ease;
}

/* -----------------------------------------------------------------
   2. Reset & base
   ----------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-soft); }

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
  margin: 0 0 0.5em;
  letter-spacing: 0;
}

h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

ul { margin: 0; padding: 0; }

/* -----------------------------------------------------------------
   3. Layout helpers
   ----------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: var(--section-y) 0; }
.section--surface { background: var(--surface); }
.section--cool { background: var(--surface-2); }

.section-head {
  max-width: 720px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head.left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary-soft);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--accent);
  vertical-align: middle;
  margin-right: 10px;
}

.lead { font-size: 1.12rem; color: var(--muted); }

/* -----------------------------------------------------------------
   4. Buttons
   ----------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); }
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.5); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.btn--outline { background: transparent; color: var(--primary); border-color: var(--border); }
.btn--outline:hover { border-color: var(--primary); color: var(--primary); }

/* -----------------------------------------------------------------
   5. Top utility bar
   ----------------------------------------------------------------- */
.topbar {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.85rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 42px;
  flex-wrap: wrap;
}
.topbar a { color: rgba(255, 255, 255, 0.82); }
.topbar a:hover { color: #fff; }
.topbar-contact { display: flex; gap: 22px; flex-wrap: wrap; }
.topbar-contact span { display: inline-flex; align-items: center; gap: 7px; }
.topbar-tag { color: #c8e9b6; font-weight: 600; letter-spacing: 0.02em; }

/* -----------------------------------------------------------------
   6. Header / navigation
   ----------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 46px;
  height: 58px;
  flex: none;
  display: block;
}
.brand-logo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name {
  font-weight: 800;
  font-size: 1.18rem;
  color: var(--primary);
  letter-spacing: 0.02em;
}
.brand-sub {
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

/* Nav list */
.nav { display: flex; align-items: center; gap: 4px; }
.nav-list { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-list > li { position: relative; }
.nav-link {
  display: block;
  padding: 10px 14px;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--ink);
  border-radius: 6px;
}
.nav-link:hover,
.nav-link[aria-current="page"] { color: var(--primary); background: var(--surface); }
.nav-link[aria-current="page"] { color: var(--primary-dark); box-shadow: inset 0 -2px 0 var(--accent); }

/* Dropdown (Hizmetler) */
.has-dropdown > .nav-link::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  margin-left: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: 0.7;
}
.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 8px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown a {
  display: block;
  padding: 9px 14px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
}
.dropdown a:hover { background: var(--surface); color: var(--primary); }

.nav-cta { margin-left: 10px; }

/* Hamburger toggle (hidden on desktop) */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 46px; height: 44px;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 22px; height: 2px;
  background: var(--primary);
  margin: 0 auto;
  position: relative;
  transition: all var(--transition);
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* -----------------------------------------------------------------
   7. Hero
   ----------------------------------------------------------------- */
.hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(115deg, rgba(0, 63, 115, 0.96) 0%, rgba(0, 90, 156, 0.9) 58%, rgba(0, 119, 186, 0.84) 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.45;
  pointer-events: none;
}
.hero::before {
  content: "";
  position: absolute;
  right: -110px;
  top: 26px;
  width: 430px;
  height: 430px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  box-shadow:
    inset 0 0 0 34px rgba(255, 255, 255, 0.04),
    inset 0 0 0 86px rgba(255, 255, 255, 0.03);
  pointer-events: none;
}
.hero .container {
  position: relative;
  z-index: 1;
  padding-top: 96px;
  padding-bottom: 104px;
  max-width: 820px;
  margin-left: 0;
}
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero .eyebrow { color: var(--accent); }
.hero p { font-size: 1.18rem; color: rgba(255, 255, 255, 0.86); max-width: 640px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }

/* Compact page hero for inner pages */
.page-hero {
  color: #fff;
  background:
    linear-gradient(115deg, rgba(0, 63, 115, 0.98), rgba(0, 90, 156, 0.9));
}
.page-hero .container { padding: 70px 24px; }
.page-hero h1 { color: #fff; margin-bottom: 10px; }
.page-hero p { color: rgba(255, 255, 255, 0.85); max-width: 640px; margin: 0; }
.breadcrumb { font-size: 0.85rem; color: rgba(255, 255, 255, 0.7); margin-bottom: 18px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.7); }
.breadcrumb a:hover { color: #fff; }

/* -----------------------------------------------------------------
   8. Value strip
   ----------------------------------------------------------------- */
.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.value {
  background: #fff;
  padding: 30px 26px;
  text-align: center;
}
.value-icon {
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  color: var(--primary);
}
.value h3 { font-size: 1.05rem; margin-bottom: 6px; }
.value p { font-size: 0.92rem; color: var(--muted); margin: 0; }

/* -----------------------------------------------------------------
   9. Cards (services etc.)
   ----------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 26px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.96rem; margin-bottom: 18px; }
.card-link {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-link::after {
  content: "→";
  transition: transform var(--transition);
}
.card:hover .card-link::after { transform: translateX(4px); }

/* -----------------------------------------------------------------
   10. About teaser (two-column)
   ----------------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split-media {
  border-radius: var(--radius);
  min-height: 360px;
  background:
    linear-gradient(135deg, rgba(0, 63, 115, 0.92), rgba(0, 119, 186, 0.78)),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 34px);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  padding: 30px;
}
.split-media .badge-years {
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.split-media .badge-label { letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.8rem; }

/* Bullet list with check marks */
.checklist { list-style: none; }
.checklist li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 12px;
  color: var(--ink);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0; top: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

/* -----------------------------------------------------------------
   11. Stats band
   ----------------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-num {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat-num .accent { color: var(--accent); }
.stat-label { color: rgba(255, 255, 255, 0.78); font-size: 0.95rem; margin-top: 8px; }
.section--dark {
  background:
    linear-gradient(115deg, var(--primary-dark), var(--primary));
  color: #fff;
}
.section--dark h2 { color: #fff; }

/* -----------------------------------------------------------------
   12. Services detail (hizmetler.html)
   ----------------------------------------------------------------- */
.service-block { padding: 64px 0; border-bottom: 1px solid var(--border); scroll-margin-top: 100px; }
.service-block:last-child { border-bottom: none; }
.service-head { display: flex; align-items: center; gap: 18px; margin-bottom: 8px; }
.service-head .card-icon { margin-bottom: 0; }
.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 30px;
  margin-top: 24px;
}
.feature-list li {
  position: relative;
  padding: 12px 14px 12px 40px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  font-weight: 500;
  font-size: 0.96rem;
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  width: 14px; height: 14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2372b742' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
}

/* -----------------------------------------------------------------
   13. References / partners
   ----------------------------------------------------------------- */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 20px;
}
.logo-box {
  min-height: 116px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.96rem;
  line-height: 1.35;
  text-align: center;
  padding: 18px;
  box-shadow: var(--shadow-sm);
}
.logo-box span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-top: 8px;
  text-transform: uppercase;
}
.story-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  border-top: 4px solid var(--accent);
}
.story-card .quote { font-size: 1.05rem; color: var(--ink); font-style: italic; }
.story-card .author { font-weight: 700; color: var(--primary); margin-top: 16px; }
.story-card .author span { display: block; font-weight: 500; color: var(--muted); font-size: 0.88rem; }
.note {
  background: #f2faee;
  border: 1px solid #cfe9c2;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.9rem;
  color: #2f641d;
  margin-top: 28px;
}

/* -----------------------------------------------------------------
   14. Contact page
   ----------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.office-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.office-card .office-body { padding: 28px; }
.office-tag {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--surface);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.office-row { display: flex; gap: 12px; margin-bottom: 12px; color: var(--muted); font-size: 0.96rem; }
.office-row svg { flex: none; width: 20px; height: 20px; color: var(--primary); margin-top: 3px; }
.office-row a { color: var(--ink); font-weight: 600; }
.office-map { width: 100%; height: 220px; border: 0; display: block; filter: grayscale(0.15); }

.contact-form { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; color: var(--ink); }
.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--ink);
  background: #fff;
  transition: border-color var(--transition);
}
.field input:focus,
.field textarea:focus { outline: none; border-color: var(--primary); }
.field textarea { resize: vertical; min-height: 130px; }

/* -----------------------------------------------------------------
   15. CTA band
   ----------------------------------------------------------------- */
.cta-band {
  background:
    linear-gradient(115deg, var(--primary-dark), var(--primary-soft));
  color: #fff;
  border-radius: var(--radius);
  padding: 50px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.cta-band h2 { color: #fff; margin: 0 0 6px; }
.cta-band p { color: rgba(255, 255, 255, 0.85); margin: 0; }

/* -----------------------------------------------------------------
   16. Footer
   ----------------------------------------------------------------- */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 0;
  font-size: 0.95rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.site-footer h4 {
  color: #fff;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.site-footer a { color: rgba(255, 255, 255, 0.72); }
.site-footer a:hover { color: var(--accent); }
.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.5); }
.footer-brand p { margin-top: 16px; max-width: 320px; }
.footer-office { margin-bottom: 16px; line-height: 1.5; }
.footer-office strong { color: #fff; display: block; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.55);
}

/* -----------------------------------------------------------------
   17. Utilities
   ----------------------------------------------------------------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.stack-lg > * + * { margin-top: 22px; }

/* -----------------------------------------------------------------
   18. Responsive
   ----------------------------------------------------------------- */
@media (max-width: 980px) {
  .values { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 36px 20px; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 880px) {
  :root { --section-y: 60px; }

  .nav-toggle { display: block; }

  /* On mobile, drop the header's backdrop-filter: it would otherwise become
     the containing block for the position:fixed drawer below and trap it
     inside the header's box instead of pinning it to the viewport. */
  .site-header {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: #fff;
  }

  /* Mobile nav drawer */
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 60;
    width: min(320px, 84vw);
    height: 100vh;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 88px 22px 30px;
    gap: 0;
    box-shadow: -12px 0 40px rgba(0, 0, 0, 0.18);
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
  }
  .nav[data-open="true"] { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; }
  .nav-link { padding: 13px 12px; font-size: 1.02rem; border-bottom: 1px solid var(--surface); border-radius: 0; }

  /* Dropdown becomes an accordion */
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--border);
    border-radius: 0;
    margin: 2px 0 6px 12px;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .has-dropdown[data-open="true"] .dropdown { max-height: 320px; }
  .has-dropdown > .nav-link::after { float: right; margin-top: 8px; }

  .nav-cta { margin: 16px 0 0; }
  .nav-cta .btn { width: 100%; justify-content: center; }

  /* Backdrop */
  .nav-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(10, 42, 59, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition);
    z-index: 40;
  }
  .nav-backdrop[data-open="true"] { opacity: 1; visibility: visible; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .values { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-band { padding: 36px 28px; text-align: center; justify-content: center; }
  .topbar-contact { gap: 14px; }
  .brand-sub { display: none; }
  .hero .container { padding-top: 64px; padding-bottom: 72px; }
}