/* NBSC Escrow — privacy-first dark theme */
:root {
  --bg: #0b0e14;
  --bg-elev: #121722;
  --bg-elev-2: #182031;
  --border: #24304a;
  --border-soft: #1b2437;
  --text: #e6ebf5;
  --text-dim: #9aa7c2;
  --text-faint: #64708c;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --accent-soft: rgba(79, 140, 255, 0.12);
  --success: #35c48a;
  --warn: #f2c14e;
  --danger: #ff5c6c;
  --danger-soft: rgba(255, 92, 108, 0.12);
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.08), transparent),
    radial-gradient(900px 500px at 0% 100%, rgba(53, 196, 138, 0.05), transparent),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.hidden { display: none !important; }

/* ---------- Layout ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  z-index: 20;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.2px;
}
.brand .shield { color: var(--accent); display: flex; }
.topbar-actions { display: flex; align-items: center; gap: 14px; }
.who { color: var(--text-dim); font-size: 13px; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}
.container.narrow { max-width: 460px; }

/* ---------- Hero / landing ---------- */
.hero {
  text-align: center;
  padding: 64px 20px 40px;
  max-width: 720px;
  margin: 0 auto;
}
.hero .lockmark {
  width: 72px; height: 72px;
  margin: 0 auto 24px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 20px;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  color: var(--accent);
}
.hero h1 { font-size: 40px; line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.5px; }
.hero p.lead { font-size: 17px; color: var(--text-dim); margin: 0 auto 32px; max-width: 560px; }
.trust-row {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 36px;
}
.trust-chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border-radius: 999px;
  background: var(--bg-elev); border: 1px solid var(--border-soft);
  color: var(--text-dim); font-size: 13px;
}
.trust-chip svg { color: var(--success); }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}
.card h2 { margin: 0 0 4px; font-size: 18px; }
.card h3 { margin: 0 0 14px; font-size: 15px; color: var(--text-dim); font-weight: 600; }
.card .sub { color: var(--text-faint); font-size: 13px; margin: 0 0 18px; }
.section-title {
  display: flex; align-items: center; justify-content: space-between;
  margin: 8px 0 16px;
}
.section-title h2 { margin: 0; font-size: 20px; }

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; color: var(--text-dim); margin: 0 0 6px; font-weight: 600; }
.field { margin-bottom: 16px; }
input[type="text"], input[type="email"], input[type="password"],
input[type="number"], select, textarea {
  width: 100%;
  padding: 11px 13px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 80px; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }
input[type="file"] {
  width: 100%;
  padding: 10px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 13px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, opacity 0.15s, border-color 0.15s;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.block { width: 100%; }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.ghost:hover { background: var(--bg-elev-2); }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #ff7280; }
.btn.small { padding: 7px 12px; font-size: 13px; }
.btn.google {
  background: #fff; color: #1f2430; border: 1px solid #dfe3ea;
}
.btn.google:hover { background: #f2f4f8; }

/* ---------- Tabs (auth) ---------- */
.tabs { display: flex; gap: 6px; background: var(--bg); padding: 5px; border-radius: 10px; margin-bottom: 22px; }
.tabs button {
  flex: 1; padding: 9px; border: none; background: transparent; color: var(--text-dim);
  font-weight: 600; font-size: 14px; cursor: pointer; border-radius: 7px; font-family: inherit;
}
.tabs button.active { background: var(--bg-elev-2); color: var(--text); }

.role-pick { display: flex; gap: 10px; margin-bottom: 16px; }
.role-pick .opt {
  flex: 1; text-align: center; padding: 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; color: var(--text-dim); font-size: 13px; font-weight: 600;
}
.role-pick .opt.active { border-color: var(--accent); background: var(--accent-soft); color: var(--text); }

.divider {
  display: flex; align-items: center; gap: 12px; color: var(--text-faint);
  font-size: 12px; margin: 18px 0;
}
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border-soft); }

/* ---------- Lists / items ---------- */
.item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}
.item .meta { min-width: 0; }
.item .meta .name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .meta .detail { font-size: 12px; color: var(--text-faint); margin-top: 2px; }
.item .actions { display: flex; gap: 8px; flex-shrink: 0; }

.badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.3px; text-transform: uppercase;
}
.badge.gray { background: var(--bg-elev-2); color: var(--text-dim); }
.badge.blue { background: var(--accent-soft); color: var(--accent); }
.badge.green { background: rgba(53,196,138,0.14); color: var(--success); }
.badge.yellow { background: rgba(242,193,78,0.14); color: var(--warn); }
.badge.red { background: var(--danger-soft); color: var(--danger); }

.empty { text-align: center; color: var(--text-faint); padding: 28px 10px; font-size: 14px; }

/* ---------- Alerts ---------- */
.alert {
  padding: 12px 14px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert.error { background: var(--danger-soft); border-color: rgba(255,92,108,0.3); color: #ffb3bb; }
.alert.success { background: rgba(53,196,138,0.1); border-color: rgba(53,196,138,0.3); color: #8ce7c0; }
.alert.info { background: var(--accent-soft); border-color: var(--border); color: #b9cdf5; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(4,6,10,0.72);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
  backdrop-filter: blur(3px);
}
.modal {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; max-width: 460px; width: 100%;
  box-shadow: var(--shadow);
}
.modal .modal-icon {
  width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: var(--danger-soft); color: var(--danger); margin-bottom: 16px;
}
.modal h2 { margin: 0 0 10px; font-size: 20px; }
.modal p { color: var(--text-dim); margin: 0 0 12px; }
.modal .modal-actions { display: flex; gap: 10px; margin-top: 22px; }
.modal .modal-actions .btn { flex: 1; }
.confirm-input { margin-top: 14px; }

/* ---------- Misc ---------- */
.spinner {
  width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff; border-radius: 50%; display: inline-block;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.center-load { text-align: center; color: var(--text-dim); padding: 40px; }
.nbsc-box {
  background: var(--accent-soft); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px; margin-top: 12px;
}
.nbsc-box .amount { font-size: 26px; font-weight: 700; }
.nbsc-box .terms { color: var(--text-dim); font-size: 13px; margin-top: 8px; white-space: pre-wrap; }
.download-box {
  background: rgba(53,196,138,0.08); border: 1px solid rgba(53,196,138,0.3);
  border-radius: var(--radius-sm); padding: 16px; margin-top: 12px; word-break: break-all;
}
code.tok { font-size: 12px; color: var(--text-dim); }
.footer-note { text-align: center; color: var(--text-faint); font-size: 12px; margin-top: 40px; }
.link-btn { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 13px; padding: 0; font-family: inherit; }

@media (max-width: 560px) {
  .hero h1 { font-size: 30px; }
  .container { padding: 24px 16px 60px; }
  .row { flex-direction: column; }
}