/* ============ LizingVPN web — dark neon theme ============ */
:root {
  --bg: #0a0f1e;
  --bg-2: #0f1730;
  --card: #121c38;
  --card-2: #16224a;
  --border: #22315e;
  --text: #e6ecff;
  --muted: #8b9bc7;
  --accent: #38bdf8;
  --accent-2: #2563eb;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(37, 99, 235, .25), transparent 60%),
    radial-gradient(900px 400px at -10% 30%, rgba(56, 189, 248, .12), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2 { line-height: 1.2; }

/* ---------- layout ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  background: rgba(10, 15, 30, .8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.topbar nav { display: flex; align-items: center; gap: 18px; }
.topbar nav a { color: var(--text); font-weight: 500; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; color: var(--text); font-weight: 600; }
.logo b { color: var(--accent); }
.logo-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: white; font-weight: 800;
  box-shadow: 0 0 18px rgba(56, 189, 248, .45);
}
.container { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: 26px 18px 60px; }
.footer {
  border-top: 1px solid var(--border);
  padding: 18px 22px; color: var(--muted); font-size: 14px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  color: #fff !important; font-weight: 600; font-size: 15px;
  border: none; border-radius: 12px; padding: 11px 20px;
  cursor: pointer; text-decoration: none !important;
  box-shadow: 0 4px 18px rgba(37, 99, 235, .35);
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(56, 189, 248, .45); }
.btn-small { padding: 7px 14px; font-size: 14px; border-radius: 10px; }
.btn-big { padding: 14px 28px; font-size: 17px; }
.btn-full { width: 100%; margin-top: 10px; }
.btn-ghost {
  background: transparent; color: var(--accent) !important;
  border: 1px solid var(--border); box-shadow: none;
}
.btn-ghost:hover { border-color: var(--accent); box-shadow: none; }
.btn-danger { background: linear-gradient(135deg, #b91c1c, #ef4444); box-shadow: 0 4px 18px rgba(239, 68, 68, .3); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

/* ---------- hero ---------- */
.hero { text-align: center; padding: 60px 10px 30px; }
.hero h1 { font-size: 44px; margin: 0 0 14px; }
.hero .accent { color: var(--accent); text-shadow: 0 0 30px rgba(56, 189, 248, .5); }
.hero-sub { color: var(--muted); max-width: 560px; margin: 0 auto 26px; font-size: 17px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- features ---------- */
.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px; margin: 40px 0;
}
.feature {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; display: flex; flex-direction: column; gap: 4px;
}
.feature .f-icon { font-size: 26px; }
.feature span { color: var(--muted); font-size: 14px; }

/* ---------- plans ---------- */
.plans h2, .faq h2 { text-align: center; font-size: 30px; margin: 40px 0 22px; }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.plan-card {
  background: linear-gradient(180deg, var(--card-2), var(--card));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color .15s ease, transform .15s ease;
}
.plan-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.plan-title { font-size: 17px; font-weight: 600; }
.plan-price { font-size: 32px; font-weight: 800; color: var(--accent); }
.plan-feats { list-style: none; margin: 0; padding: 0; color: var(--muted); font-size: 14px; flex: 1; }
.plan-feats li { padding: 3px 0; }
.plan-feats li::before { content: "✓ "; color: var(--ok); }

/* ---------- faq ---------- */
.faq details {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 18px; margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p, .faq details { color: var(--muted); }
.faq summary { color: var(--text); }

/* ---------- cards / dashboard ---------- */
.page-title { font-size: 30px; margin: 8px 0 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; margin-bottom: 16px;
}
.card h2 { margin: 0 0 14px; font-size: 20px; }
.kv { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed rgba(139, 155, 199, .15); font-size: 15px; }
.kv span { color: var(--muted); }
.ok { color: var(--ok); }
.warn { color: var(--warn); }
.accent { color: var(--accent); }
.muted { color: var(--muted); font-weight: 400; font-size: 13px; }

.sub-link-block { margin-top: 14px; }
.sub-link-label { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
.sub-link {
  display: block; background: #0b1226; border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; font-size: 13px;
  word-break: break-all; cursor: pointer; color: var(--accent);
}
.sub-link:hover { border-color: var(--accent); }
.copy-hint { color: var(--ok); font-size: 13px; }

/* ---------- auth ---------- */
.auth-card {
  max-width: 420px; margin: 30px auto;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
}
.auth-card h1 { margin: 0 0 18px; font-size: 26px; }
.auth-card label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.auth-card input, .search-row input {
  width: 100%; margin-top: 5px;
  background: #0b1226; color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 11px 12px; font-size: 15px; outline: none;
}
.auth-card input:focus, .search-row input:focus { border-color: var(--accent); }
.divider { display: flex; align-items: center; gap: 12px; color: var(--muted); margin: 18px 0; font-size: 13px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.tg-widget-wrap { display: flex; justify-content: center; margin: 8px 0; min-height: 44px; }
.hint { color: var(--muted); font-size: 13.5px; }
.hint-details summary { cursor: pointer; color: var(--accent); }

/* ---------- alerts ---------- */
.alert {
  background: rgba(56, 189, 248, .08); border: 1px solid rgba(56, 189, 248, .35);
  border-radius: 10px; padding: 12px 14px; margin-bottom: 14px; font-size: 14.5px;
}
.alert-ok { background: rgba(52, 211, 153, .08); border-color: rgba(52, 211, 153, .4); }
.alert-error { background: rgba(248, 113, 113, .08); border-color: rgba(248, 113, 113, .4); }
.merge-list { margin: 8px 0 0 18px; padding: 0; }

/* ---------- guide ---------- */
.guide-step { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed rgba(139,155,199,.15); }
.guide-step:last-of-type { border-bottom: none; }
.g-num {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent));
  display: flex; align-items: center; justify-content: center; font-weight: 700;
}
.guide-step p { margin: 4px 0; color: var(--muted); font-size: 14.5px; }

/* ---------- admin ---------- */
.search-row { display: flex; gap: 10px; margin-bottom: 16px; }
.search-row input { flex: 1; margin-top: 0; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; }

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; justify-content: center; gap: 10px; padding: 12px 14px; }
  .topbar nav { gap: 14px; flex-wrap: wrap; justify-content: center; }
  .logo { font-size: 18px; }
  .hero { padding: 34px 6px 16px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .page-title { font-size: 24px; }
  .card { padding: 16px; }
  .kv { flex-wrap: wrap; }
  .btn-row .btn { flex: 1; }
  .table { font-size: 12.5px; }
  .table th, .table td { padding: 6px 6px; }
}