/* ============================================================
   howtofindtheip.com — design system
   ============================================================ */

:root {
  --bg: #070b15;
  --bg-soft: #0a1120;
  --surface: #0e1626;
  --surface-2: #121c30;
  --surface-3: #16233c;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.28);
  --text: #e7eef9;
  --muted: #9aa9bf;
  --faint: #64748b;
  --accent: #22d3ee;
  --accent-2: #818cf8;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, 0.12);
  --amber: #fbbf24;
  --amber-soft: rgba(251, 191, 36, 0.12);
  --red: #f87171;
  --red-soft: rgba(248, 113, 113, 0.12);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(2, 6, 17, 0.45);
  --glow: 0 0 42px rgba(34, 211, 238, 0.22);
  --container: 1160px;
  --header-h: 68px;
}

/* ---------- reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img, svg, video { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -0.02em; font-weight: 800; }
h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); }
h2 { font-size: clamp(1.45rem, 2.8vw, 2rem); }
h3 { font-size: 1.18rem; font-weight: 700; }

::selection { background: rgba(34, 211, 238, 0.3); color: #fff; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #23324e; border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #2e4165; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 22px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--accent);
  color: #04121a;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 200;
}
.skip-link:focus { left: 12px; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 11, 21, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(2, 6, 17, 0.5); }

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  font-size: 1.06rem;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-text b { color: var(--accent); font-weight: 800; }
.brand-tld { color: var(--faint); font-weight: 600; }

.main-nav ul { list-style: none; padding: 0; display: flex; align-items: center; gap: 4px; }
.main-nav a, .nav-drop-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.94rem;
  padding: 9px 13px;
  border-radius: 9px;
  border: 0;
  background: none;
  cursor: pointer;
  font-family: inherit;
}
.main-nav a:hover, .nav-drop-btn:hover { color: var(--text); background: rgba(148, 163, 184, 0.09); text-decoration: none; }
.main-nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }

.has-drop { position: relative; }
.nav-drop-btn svg { width: 12px; height: 12px; transition: transform 0.18s ease; }
.has-drop.open .nav-drop-btn svg { transform: rotate(180deg); }
.main-nav .drop {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 230px;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 7px;
  box-shadow: var(--shadow);
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 50;
}
.has-drop.open > .drop { display: flex; }
.drop li { display: block; }
.drop a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
}
.drop .drop-note {
  padding: 8px 12px 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--faint);
  pointer-events: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  padding: 8px 10px;
  cursor: pointer;
  color: var(--text);
}
.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 920px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border-strong);
    box-shadow: var(--shadow);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 12px 18px 20px;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .main-nav a, .nav-drop-btn { width: 100%; justify-content: space-between; padding: 12px 12px; font-size: 1rem; }
  .main-nav .drop {
    position: static;
    display: none;
    box-shadow: none;
    background: rgba(148, 163, 184, 0.05);
    border: 1px solid var(--border);
  }
  .has-drop.open > .drop { display: flex; }
}

/* ---------- buttons / badges / chips ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 11px 20px;
  border-radius: 11px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #071018;
  box-shadow: 0 6px 22px rgba(34, 211, 238, 0.28);
}
.btn-primary:hover { box-shadow: 0 8px 28px rgba(34, 211, 238, 0.42); }

.btn-ghost {
  background: rgba(148, 163, 184, 0.08);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(148, 163, 184, 0.15); }

.btn-sm { padding: 7px 13px; font-size: 0.85rem; border-radius: 9px; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--muted);
  background: rgba(148, 163, 184, 0.07);
}
.badge svg { width: 13px; height: 13px; }
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); flex: none; }
.badge.ok { color: var(--green); border-color: rgba(52, 211, 153, 0.4); background: var(--green-soft); }
.badge.ok .dot { background: var(--green); }
.badge.warn { color: var(--amber); border-color: rgba(251, 191, 36, 0.4); background: var(--amber-soft); }
.badge.warn .dot { background: var(--amber); }
.badge.bad { color: var(--red); border-color: rgba(248, 113, 113, 0.4); background: var(--red-soft); }
.badge.bad .dot { background: var(--red); }
.badge.info { color: var(--accent); border-color: rgba(34, 211, 238, 0.4); background: var(--accent-soft); }
.badge.info .dot { background: var(--accent); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: 72px 0 58px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 340px at 18% -10%, rgba(34, 211, 238, 0.16), transparent 65%),
    radial-gradient(700px 380px at 85% 0%, rgba(129, 140, 248, 0.15), transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.055) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
  pointer-events: none;
}
.hero > .container { position: relative; z-index: 1; }

.hero-center { text-align: center; max-width: 780px; margin: 0 auto; }
.hero p.lead {
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.17rem);
  margin: 18px auto 0;
  max-width: 640px;
}
.hero .badges { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-bottom: 22px; }

/* ---------- IP display ---------- */
.ip-panel {
  position: relative;
  max-width: 760px;
  margin: 40px auto 0;
  background: linear-gradient(180deg, rgba(18, 28, 48, 0.92), rgba(13, 21, 38, 0.92));
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 34px 30px 28px;
  box-shadow: var(--shadow), var(--glow);
}
.ip-panel .ip-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.ip-panel .ip-label .live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.ip-value-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.ip-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.7rem, 6vw, 3.3rem);
  letter-spacing: 0.01em;
  background: linear-gradient(90deg, #67e8f9, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  word-break: break-all;
  line-height: 1.15;
}
.ip-value.loading {
  min-width: 280px;
  min-height: 1.2em;
  border-radius: 10px;
  background: linear-gradient(100deg, rgba(148,163,184,0.12) 35%, rgba(148,163,184,0.26) 50%, rgba(148,163,184,0.12) 65%);
  background-size: 220% 100%;
  animation: shimmer 1.3s linear infinite;
  -webkit-background-clip: border-box;
}
@keyframes shimmer { to { background-position: -220% 0; } }

.ip-actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.ip-error {
  color: var(--red);
  font-size: 0.92rem;
  margin-top: 12px;
  text-align: center;
  display: none;
}
.ip-error.show { display: block; }

.connectivity {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  justify-content: center;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed var(--border-strong);
}
.conn-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.83rem;
  font-weight: 700;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--muted);
  background: rgba(148, 163, 184, 0.06);
}
.conn-chip .st { font-size: 0.7rem; font-weight: 800; padding: 2px 8px; border-radius: 999px; background: rgba(148,163,184,0.16); color: var(--muted); }
.conn-chip.up .st { background: var(--green-soft); color: var(--green); }
.conn-chip.down .st { background: var(--red-soft); color: var(--red); }

/* ---------- sections ---------- */
.section { padding: 66px 0; }
.section.alt { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 720px; margin-bottom: 38px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-head p { color: var(--muted); margin-top: 12px; font-size: 1.02rem; }

/* ---------- stat cards ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
@media (max-width: 980px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.stat:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.stat .stat-label {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}
.stat .stat-label svg { width: 14px; height: 14px; color: var(--accent); flex: none; }
.stat .stat-value {
  margin-top: 8px;
  font-weight: 700;
  font-size: 1.06rem;
  word-break: break-word;
  display: flex;
  align-items: center;
  gap: 9px;
}
.stat .stat-sub { margin-top: 2px; font-size: 0.8rem; color: var(--faint); }
.stat .flag { font-size: 1.25rem; line-height: 1; }
.stat-value.skeleton, .line-skeleton {
  border-radius: 8px;
  background: linear-gradient(100deg, rgba(148,163,184,0.1) 35%, rgba(148,163,184,0.22) 50%, rgba(148,163,184,0.1) 65%);
  background-size: 220% 100%;
  animation: shimmer 1.3s linear infinite;
  color: transparent !important;
  min-height: 1.3em;
}
.stat-value.skeleton { min-width: 110px; }

/* ---------- cards / grids ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card-title { display: flex; align-items: center; gap: 10px; font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.card-title svg { width: 19px; height: 19px; color: var(--accent); flex: none; }
.card-sub { color: var(--faint); font-size: 0.86rem; margin-bottom: 16px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--text);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.feature-card:hover {
  text-decoration: none;
  border-color: rgba(34, 211, 238, 0.45);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(2, 6, 17, 0.5);
}
.feature-card .fc-icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft);
  color: var(--accent);
  flex: none;
}
.feature-card .fc-icon svg { width: 21px; height: 21px; }
.feature-card h3 { font-size: 1.04rem; }
.feature-card p { color: var(--muted); font-size: 0.92rem; flex: 1; }
.feature-card .fc-link { color: var(--accent); font-weight: 700; font-size: 0.88rem; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- map ---------- */
.map-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  min-height: 340px;
}
#map, #gps-map, #wam-map { height: 380px; width: 100%; background: #0b1322; }
.map-note {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--faint);
  font-size: 0.84rem;
  margin-top: 12px;
}
.map-note svg { width: 15px; height: 15px; flex: none; margin-top: 2px; color: var(--amber); }

/* ---------- tool form ---------- */
.tool-form { display: flex; gap: 10px; flex-wrap: wrap; }
.tool-input {
  flex: 1;
  min-width: 220px;
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 11px;
  padding: 12px 15px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
}
.tool-input::placeholder { color: var(--faint); font-family: var(--font-sans); }
.tool-input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
.input-error { color: var(--red); font-size: 0.85rem; margin-top: 8px; display: none; }
.input-error.show { display: block; }

.verdict {
  display: none;
  align-items: flex-start;
  gap: 13px;
  border-radius: var(--radius);
  padding: 17px 19px;
  margin-top: 20px;
  border: 1px solid var(--border-strong);
  font-size: 0.95rem;
}
.verdict.show { display: flex; }
.verdict svg { width: 22px; height: 22px; flex: none; margin-top: 2px; }
.verdict .v-title { font-weight: 800; font-size: 1.02rem; margin-bottom: 3px; }
.verdict.good { background: var(--green-soft); border-color: rgba(52, 211, 153, 0.4); }
.verdict.good svg, .verdict.good .v-title { color: var(--green); }
.verdict.bad { background: var(--red-soft); border-color: rgba(248, 113, 113, 0.4); }
.verdict.bad svg, .verdict.bad .v-title { color: var(--red); }
.verdict.warn { background: var(--amber-soft); border-color: rgba(251, 191, 36, 0.4); }
.verdict.warn svg, .verdict.warn .v-title { color: var(--amber); }
.verdict p { color: var(--muted); }

/* ---------- result tables ---------- */
.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.result-table th {
  text-align: left;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-strong);
  font-weight: 700;
}
.result-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.result-table tr:last-child td { border-bottom: 0; }
.result-table .mono { font-family: var(--font-mono); font-size: 0.86rem; color: var(--muted); }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 4px 11px;
  border-radius: 999px;
  white-space: nowrap;
}
.status-pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status-pill.ok { background: var(--green-soft); color: var(--green); }
.status-pill.bad { background: var(--red-soft); color: var(--red); }
.status-pill.warn { background: var(--amber-soft); color: var(--amber); }
.status-pill.off { background: rgba(148, 163, 184, 0.1); color: var(--faint); }

/* ---------- browser info ---------- */
.kv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
@media (max-width: 620px) { .kv-grid { grid-template-columns: 1fr; } }
.kv { padding: 15px 18px; border-bottom: 1px solid var(--border); }
.kv:nth-child(odd) { border-right: 1px solid var(--border); }
@media (max-width: 620px) { .kv:nth-child(odd) { border-right: 0; } }
.kv:nth-last-child(1), .kv:nth-last-child(2):nth-child(odd) { border-bottom: 0; }
.kv .k { font-size: 0.74rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.kv .v { font-size: 0.9rem; margin-top: 4px; word-break: break-word; }

/* ---------- prose (articles) ---------- */
.page-hero {
  position: relative;
  padding: 58px 0 42px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 300px at 15% -20%, rgba(34, 211, 238, 0.13), transparent 60%),
              radial-gradient(500px 280px at 90% -30%, rgba(129, 140, 248, 0.12), transparent 60%);
  pointer-events: none;
}
.page-hero > .container { position: relative; }
.page-hero h1 { max-width: 820px; }
.page-hero .lead { color: var(--muted); font-size: 1.1rem; max-width: 760px; margin-top: 14px; }

.breadcrumbs { font-size: 0.84rem; color: var(--faint); margin-bottom: 18px; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 7px; padding: 0; }
.breadcrumbs li { display: flex; align-items: center; gap: 7px; }
.breadcrumbs li + li::before { content: "/"; color: var(--faint); opacity: 0.6; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs [aria-current] { color: var(--text); font-weight: 600; }

.prose {
  max-width: 780px;
  margin: 0 auto;
  font-size: 1.03rem;
  color: #c7d2e4;
}
.prose h2 { margin: 44px 0 14px; color: var(--text); scroll-margin-top: calc(var(--header-h) + 16px); }
.prose h3 { margin: 30px 0 10px; color: var(--text); scroll-margin-top: calc(var(--header-h) + 16px); }
.prose p { margin: 13px 0; }
.prose ul, .prose ol { margin: 13px 0; padding-left: 24px; }
.prose li { margin: 7px 0; }
.prose li::marker { color: var(--accent); }
.prose strong { color: var(--text); }
.prose a { word-break: break-word; }
.prose > h2:first-child, .prose > h3:first-child { margin-top: 0; }

.toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 26px 0;
}
.toc .toc-title { font-size: 0.78rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); margin-bottom: 10px; }
.toc ol { margin: 0; padding-left: 20px; columns: 2; column-gap: 34px; }
@media (max-width: 620px) { .toc ol { columns: 1; } }
.toc li { margin: 6px 0; break-inside: avoid; }

.table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--border); border-radius: var(--radius); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 0.93rem; background: var(--surface); }
.table-wrap th { background: var(--surface-2); text-align: left; padding: 12px 16px; font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--border-strong); white-space: nowrap; }
.table-wrap td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: #c7d2e4; vertical-align: top; }
.table-wrap tr:last-child td { border-bottom: 0; }

.codeblock {
  position: relative;
  background: #0a0f1d;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  margin: 18px 0;
  overflow: hidden;
}
.codeblock .cb-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.05);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
}
.codeblock pre {
  padding: 15px 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  color: #a5f3fc;
  margin: 0;
}
.codeblock pre .cmt { color: var(--faint); }

.callout {
  display: flex;
  gap: 12px;
  border-radius: var(--radius);
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: var(--accent-soft);
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 0.95rem;
}
.callout svg { width: 19px; height: 19px; flex: none; color: var(--accent); margin-top: 2px; }
.callout p { margin: 0; color: #c7d2e4; }
.callout.warn { border-color: rgba(251, 191, 36, 0.4); background: var(--amber-soft); }
.callout.warn svg { color: var(--amber); }

.os-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; }
.os-tab {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--muted);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
}
.os-tab[aria-selected="true"] { background: var(--accent-soft); border-color: rgba(34, 211, 238, 0.5); color: var(--accent); }
.os-panel { display: none; }
.os-panel.active { display: block; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; }
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
}
.faq details[open] { border-color: rgba(34, 211, 238, 0.35); }
.faq summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 17px 20px;
  font-weight: 700;
  font-size: 0.99rem;
  color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  width: 9px; height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 0.18s ease;
  flex: none;
  margin-top: -4px;
}
.faq details[open] summary::after { transform: rotate(225deg); margin-top: 4px; }
.faq .faq-a { padding: 0 20px 18px; color: var(--muted); font-size: 0.95rem; }
.faq .faq-a p + p { margin-top: 9px; }

/* ---------- CTA band ---------- */
.cta-band {
  border: 1px solid rgba(34, 211, 238, 0.3);
  background:
    radial-gradient(500px 220px at 10% 0%, rgba(34, 211, 238, 0.14), transparent 60%),
    radial-gradient(500px 220px at 95% 100%, rgba(129, 140, 248, 0.14), transparent 60%),
    var(--surface);
  border-radius: 18px;
  padding: 36px 30px;
  text-align: center;
}
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 22px; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  margin-top: 70px;
  padding: 54px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 34px;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { color: var(--faint); font-size: 0.9rem; margin-top: 12px; max-width: 300px; }
.footer-col h4 { font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.footer-col a { color: var(--faint); font-size: 0.92rem; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  color: var(--faint);
  font-size: 0.84rem;
}
.footer-bottom .disclosure { flex-basis: 100%; font-size: 0.78rem; }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: var(--surface-3);
  border: 1px solid rgba(34, 211, 238, 0.5);
  color: var(--text);
  padding: 11px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 9px;
}
.toast svg { width: 16px; height: 16px; color: var(--green); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- utility ---------- */
.mt-0 { margin-top: 0 !important; }
.text-center { text-align: center; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.hidden { display: none !important; }
.mt-lg { margin-top: 40px; }

.spin { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- leaflet dark theming ---------- */
.leaflet-container {
  background: #0b1322;
  font-family: var(--font-sans) !important;
}
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: var(--shadow);
}
a.leaflet-popup-close-button { color: var(--faint) !important; }
.leaflet-control-attribution {
  background: rgba(7, 11, 21, 0.72) !important;
  color: var(--faint) !important;
  font-size: 10px !important;
}
.leaflet-control-attribution a { color: var(--accent) !important; }
.leaflet-bar a {
  background: var(--surface-2) !important;
  color: var(--text) !important;
  border-bottom: 1px solid var(--border) !important;
}
.leaflet-bar a:hover { background: var(--surface-3) !important; }
.leaflet-control-layers {
  background: var(--surface-2) !important;
  color: var(--text) !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: 10px !important;
}
.leaflet-control-layers-expanded { padding: 10px 14px !important; font-size: 0.86rem; }
.leaflet-control-layers-toggle { background-color: var(--surface-2) !important; }

/* ---------- GPS pages ---------- */
.gps-hint {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--faint);
  font-size: 0.84rem;
  margin-top: 12px;
}
.gps-hint svg { width: 15px; height: 15px; flex: none; margin-top: 2px; color: var(--accent); }
.dms-line {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--muted);
  margin-top: 10px;
  text-align: center;
  letter-spacing: 0.01em;
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  justify-content: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border-strong);
}

/* ---------- language switcher ---------- */
.lang-switcher { position: relative; flex: none; }
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border-strong);
  color: var(--text);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.84rem;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.lang-toggle:hover { background: rgba(148, 163, 184, 0.15); }
.lang-toggle svg { width: 15px; height: 15px; color: var(--accent); flex: none; }
.lang-toggle-code { letter-spacing: 0.05em; }
.lang-toggle-arrow { width: 10px !important; height: 10px !important; color: var(--muted) !important; transition: transform 0.18s ease; }
.lang-switcher.open .lang-toggle-arrow { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 270px;
  max-width: calc(100vw - 32px);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 120;
  overflow: hidden;
}
.lang-search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.lang-search-wrap svg { width: 14px; height: 14px; color: var(--faint); flex: none; }
.lang-search {
  flex: 1;
  background: none;
  border: 0;
  outline: 0;
  color: var(--text);
  font-family: inherit;
  font-size: 0.88rem;
}
.lang-search::placeholder { color: var(--faint); }
.lang-list {
  list-style: none;
  margin: 0;
  padding: 6px;
  max-height: 300px;
  overflow-y: auto;
}
.lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  background: none;
  border: 0;
  color: var(--text);
  font-family: inherit;
  font-size: 0.88rem;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  text-align: start;
}
.lang-option:hover { background: rgba(148, 163, 184, 0.1); }
.lang-option.active { background: var(--accent-soft); color: var(--accent); }
.lang-option.disabled { cursor: default; }
.lang-option.disabled:hover { background: none; }
.lang-option-native { font-weight: 600; }
.lang-option-name { color: var(--faint); font-size: 0.78rem; }
.lang-option.active .lang-option-name { color: var(--accent); opacity: 0.75; }
.lang-soon {
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid rgba(251, 191, 36, 0.35);
  padding: 2px 7px;
  border-radius: 999px;
  flex: none;
}
.lang-empty { padding: 14px; text-align: center; color: var(--faint); font-size: 0.85rem; }

/* RTL (Arabic) adjustments */
[dir="rtl"] .lang-dropdown { right: auto; left: 0; }

@media (max-width: 920px) {
  .lang-toggle { padding: 9px 13px; }
  .lang-dropdown { width: 250px; }
}

@media (max-width: 620px) {
  .hero { padding: 50px 0 44px; }
  .section { padding: 50px 0; }
  .ip-panel { padding: 26px 18px 22px; }
}


/* ============================================================
   QR scanner & reader
   ============================================================ */
.qr-stage {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  margin-left: auto;
  margin-right: auto;
}
.qr-stage video { width: 100%; height: 100%; object-fit: cover; display: block; }
.qr-stage .qr-frame {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 62%;
  aspect-ratio: 1;
  border: 2px solid rgba(34, 211, 238, 0.75);
  border-radius: 18px;
  box-shadow: 0 0 0 9999px rgba(7, 11, 21, 0.35);
  pointer-events: none;
}
.qr-stage .qr-idle {
  position: absolute;
  inset: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--faint);
  font-size: .92rem;
  text-align: center;
  padding: 20px;
}
.qr-stage .qr-idle svg { width: 44px; height: 44px; }
.qr-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 34px 24px;
  margin-left: auto;
  margin-right: auto;
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.qr-drop svg { width: 34px; height: 34px; color: var(--accent); }
.qr-drop p { margin: 0; }
.qr-drop p.muted { font-size: .88rem; }
.qr-drop:hover, .qr-drop:focus-visible, .qr-drop.drag {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.kv .v { overflow-wrap: anywhere; }
[hidden] { display: none !important; }

/* ============================================================
   QR generator
   ============================================================ */
.qr-gen {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 26px;
  align-items: start;
  text-align: left;
}
@media (max-width: 720px) { .qr-gen { grid-template-columns: 1fr; } }
.qr-gen-form { display: flex; flex-direction: column; gap: 14px; }
.qr-gen-form .chip-row { justify-content: flex-start; }
.chip {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  transition: color .12s, background .12s, border-color .12s;
}
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip.active { color: var(--accent); background: var(--accent-soft); border-color: rgba(34, 211, 238, 0.5); }
.qr-gen-form [data-qr-panel] { display: flex; flex-direction: column; gap: 10px; }
.qr-gen-options { display: flex; flex-wrap: wrap; gap: 16px; }
.qr-gen-options label {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; font-weight: 600; color: var(--muted);
}
.qr-gen-options select {
  font-family: inherit; font-size: 0.88rem; font-weight: 600;
  color: var(--text); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: 9px;
  padding: 8px 10px; cursor: pointer;
}
.qr-gen-form .btn-primary { align-self: flex-start; }
.qr-gen-preview {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 22px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.qr-gen-canvas {
  position: relative;
  width: 100%;
  max-width: 290px;
  aspect-ratio: 1;
  background: #ffffff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.qr-gen-canvas canvas { width: 100%; height: 100%; display: block; image-rendering: pixelated; }
.qr-gen-placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; color: var(--faint); font-size: 0.88rem; text-align: center; padding: 16px;
}
.qr-gen-placeholder svg { width: 40px; height: 40px; }

/* ============================================================
   Scanner page — Scan Image / Camera tabs
   ============================================================ */
.qr-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  max-width: 760px;
  margin: 30px auto 0;
  border-bottom: 1px solid var(--border);
}
.qr-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--muted);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 12px 20px;
  cursor: pointer;
  transition: color .12s, border-color .12s;
}
.qr-tab svg { width: 18px; height: 18px; }
.qr-tab:hover { color: var(--text); }
.qr-tab.active { color: var(--accent); border-bottom-color: var(--accent); }