/* ============================================================
   SAMSUNG SERVICE CENTER UAE — Shared Design System
   Signature concept: "Service Docket" — the visual language of
   a repair shop's job ticket (perforated edges, stamped badges,
   mono ticket numbers) applied across the whole site.
   ============================================================ */

:root {
  /* Color */
  --color-primary: #1E1B6E;       /* deep indigo-blue, pulled from brand logo */
  --color-primary-light: #322DA6;
  --color-primary-dark: #121052;
  --color-accent: #FF5A1F;        /* warm stamp-orange for CTAs / urgency */
  --color-accent-dark: #E14807;
  --color-success: #1E8E5A;
  --color-ink: #14131F;
  --color-ink-soft: #4A4960;
  --color-paper: #F6F5FB;
  --color-paper-alt: #EFEDF9;
  --color-white: #FFFFFF;
  --color-line: #DEDCEF;
  --color-line-strong: #C3C0E3;

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  /* Scale */
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 26px;
  --shadow-card: 0 12px 30px -14px rgba(20, 19, 31, 0.25);
  --shadow-pop: 0 20px 45px -18px rgba(30, 27, 110, 0.35);
  --container: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0;
  line-height: 1.12;
  letter-spacing: -0.01em;
}
p { margin: 0; line-height: 1.6; color: var(--color-ink-soft); }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-pop);
}
.btn-accent:hover { background: var(--color-accent-dark); }
.btn-ghost {
  background: transparent;
  border-color: var(--color-line-strong);
  color: var(--color-primary);
}
.btn-ghost:hover { border-color: var(--color-primary); }
.btn-light {
  background: var(--color-white);
  color: var(--color-primary);
}

/* ---------- Ticket / docket motif (signature element) ---------- */
.ticket {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 28px;
}
.ticket::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 64px;
  height: 0;
  border-top: 2px dashed var(--color-line-strong);
  opacity: .7;
}
.ticket-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-primary);
  background: var(--color-paper-alt);
  border: 1px solid var(--color-line-strong);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 14px;
}
.stamp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  border-radius: 100px;
  padding: 6px 14px;
  transform: rotate(-3deg);
}

/* ---------- NAVBAR ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
}
.topbar {
  background: var(--color-primary-dark);
  color: #DCDBFF;
  font-size: 13px;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  padding-bottom: 8px;
  gap: 12px;
  flex-wrap: wrap;
}
.topbar a { display: inline-flex; align-items: center; gap: 6px; }
.topbar a:hover { color: var(--color-white); }
.topbar-right { display: flex; gap: 18px; align-items: center; }

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 20px;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.nav-logo .word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.nav-logo .sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links > li { position: relative; }
.nav-links > li > a,
.nav-links > li > button.nav-link-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-ink);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  cursor: pointer;
}
.nav-links > li > a:hover,
.nav-links > li > button.nav-link-btn:hover,
.nav-links > li.open > button.nav-link-btn { color: var(--color-primary); background: var(--color-paper-alt); }
.chev { transition: transform .2s ease; }
.nav-links > li.open .chev { transform: rotate(180deg); }

/* Mega menu (dropdown "different method" that keeps navbar short) */
.mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  width: 560px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-pop);
  padding: 18px;
  display: none;
  z-index: 50;
}
.nav-links > li.open .mega { display: block; }
.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 10px;
}
.mega-grid a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-ink);
}
.mega-grid a:hover { background: var(--color-paper-alt); color: var(--color-primary); }
.mega-grid .ic {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--color-paper-alt);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}
.mega-foot {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-line-strong);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mega-foot a { font-size: 13px; font-weight: 600; color: var(--color-accent); font-family: var(--font-display); }

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-panel {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(340px, 86vw);
  height: 100vh;
  background: var(--color-white);
  transform: translateX(100%);
  transition: transform .3s ease;
  z-index: 600;
  overflow-y: auto;
  box-shadow: -20px 0 40px rgba(0,0,0,0.15);
}
.mobile-panel.active { transform: translateX(0); }
.mobile-overlay {
  position: fixed; inset: 0;
  background: rgba(18,16,60,0.5);
  opacity: 0; pointer-events: none;
  transition: opacity .3s ease;
  z-index: 590;
}
.mobile-overlay.active { opacity: 1; pointer-events: auto; }
.mobile-panel-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--color-line);
}
.mobile-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--color-ink); }
.mobile-panel nav { padding: 10px 12px 30px; }
.mobile-panel a, .mobile-panel .mb-accordion-btn {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%;
  font-family: var(--font-display);
  font-size: 16px;
  padding: 14px 12px;
  border-bottom: 1px solid var(--color-line);
  background: none; border: none; text-align: left; cursor: pointer;
  color: var(--color-ink);
}
.mb-submenu {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
  background: var(--color-paper);
  border-radius: var(--radius-sm);
}
.mb-submenu.open { max-height: 600px; }
.mb-submenu a { border-bottom: 1px solid var(--color-line); padding-left: 26px; font-size: 14px; font-weight: 400; font-family: var(--font-body); }
.mobile-panel .mb-cta { padding: 20px 12px; }

@media (max-width: 980px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .hamburger { display: flex; }
  .topbar-right span.topbar-hide { display: none; }
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #C7C6EE;
  margin-top: 100px;
}
.footer-cta {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-50%);
  margin-bottom: -50px;
}
.footer-cta .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  background: linear-gradient(120deg, var(--color-accent), var(--color-accent-dark));
  border-radius: var(--radius-lg);
  padding: 36px 44px;
  box-shadow: var(--shadow-pop);
}
.footer-cta h3 { font-size: 26px; color: var(--color-white); }
.footer-cta p { color: rgba(255,255,255,0.85); margin-top: 6px; }

.footer-top {
  padding: 90px 0 50px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}
.footer-brand .word { font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--color-white); }
.footer-brand .sub { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-accent); margin: 4px 0 16px; }
.footer-brand p { color: #ADACDD; font-size: 14px; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
}
.footer-social a:hover { background: var(--color-accent); border-color: var(--color-accent); }
.footer-col h4 { color: var(--color-white); font-size: 15px; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col a { color: #ADACDD; font-size: 14px; }
.footer-col a:hover { color: var(--color-white); }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 16px; font-size: 14px; color: #ADACDD; align-items: flex-start; }
.footer-contact .ic { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 22px 0;
  font-size: 13px;
  color: #8C8BC2;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom .legal-note { max-width: 720px; color: #6E6DA8; font-size: 12px; }
.footer-bottom-links { display: flex; gap: 18px; }

@media (max-width: 880px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-cta .container { flex-direction: column; text-align: center; padding: 30px; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; padding-top: 70px; }
}