/* =========================================================
   WaAuth — WhatsApp OTP Authentication Dashboard
   Design language: calm security-console. Dark by default.
   Type: system font stack only (CSP self-only, no external fonts/CDNs).
   ========================================================= */

:root {
  --bg: #0A0F14;
  --bg-elevated: #10171F;
  --panel: #141C25;
  --panel-2: #182029;
  --panel-border: #223040;
  --text: #EAF1F7;
  --text-muted: #7E93A6;
  --text-faint: #4F6072;

  --accent: #1FCFB8;
  --accent-strong: #17B39F;
  --accent-soft: rgba(31, 207, 184, 0.14);
  --accent-ring: rgba(31, 207, 184, 0.35);

  --good: #35DE8B;
  --good-soft: rgba(53, 222, 139, 0.14);
  --bad: #F1495B;
  --bad-soft: rgba(241, 73, 91, 0.14);
  --warn: #F5A623;
  --warn-soft: rgba(245, 166, 35, 0.14);

  --radius-lg: 18px;
  --radius: 14px;
  --radius-sm: 10px;

  --shadow-card: 0 1px 0 rgba(255,255,255,0.02) inset, 0 12px 28px rgba(0,0,0,0.28);
  --shadow-pop: 0 20px 48px rgba(0,0,0,0.45);

  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #EEF2F5;
  --bg-elevated: #FFFFFF;
  --panel: #FFFFFF;
  --panel-2: #F6F8FA;
  --panel-border: #E1E7EC;
  --text: #101820;
  --text-muted: #5B6B79;
  --text-faint: #93A2AF;

  --accent: #0EA898;
  --accent-strong: #0B8B7D;
  --accent-soft: rgba(14, 168, 152, 0.10);
  --accent-ring: rgba(14, 168, 152, 0.28);

  --shadow-card: 0 1px 0 rgba(255,255,255,0.6) inset, 0 10px 24px rgba(16,24,32,0.08);
  --shadow-pop: 0 24px 48px rgba(16,24,32,0.16);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
button, input { font-family: inherit; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- Icon system (original inline SVG sprite, no external icon fonts) ---------- */
.icon {
  width: 18px; height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}
.icon-lg { width: 26px; height: 26px; }
.icon-sm { width: 14px; height: 14px; }

/* ---------- Brand ---------- */
.brand-mark {
  color: var(--accent);
  display: inline-flex;
}
.brand-word {
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 17px;
}
.brand-row { display: flex; align-items: center; gap: 9px; }

/* =========================================================
   LOGIN SCREEN
   ========================================================= */
.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
}

.auth-brand-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 48px;
  background:
    radial-gradient(circle at 15% 10%, rgba(31,207,184,0.16), transparent 42%),
    radial-gradient(circle at 85% 90%, rgba(31,207,184,0.10), transparent 45%),
    #081016;
  color: #EAF1F7;
  overflow: hidden;
}
.auth-brand-panel::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at 30% 20%, black, transparent 70%);
  pointer-events: none;
}
.auth-brand-top { position: relative; z-index: 1; }
.auth-brand-panel .brand-word { font-size: 20px; }
.auth-tagline {
  margin-top: 28px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.28;
  max-width: 460px;
  letter-spacing: -0.01em;
}
.auth-tagline span { color: var(--accent); }
.auth-sub {
  margin-top: 14px;
  color: #93A5B5;
  font-size: 15px;
  max-width: 420px;
  line-height: 1.6;
}

.auth-features {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; gap: 16px;
  margin-top: 12px;
}
.auth-feature {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 13.5px; color: #B7C4D0;
}
.auth-feature .icon {
  color: var(--accent);
  background: rgba(31,207,184,0.12);
  border-radius: 8px;
  padding: 6px;
  width: 30px; height: 30px;
  flex-shrink: 0;
}
.auth-feature strong { color: #EAF1F7; display: block; font-size: 14px; margin-bottom: 2px; }

.auth-form-panel {
  display: flex; align-items: center; justify-content: center;
  padding: 32px;
  background: var(--bg);
}
.auth-card {
  width: 100%; max-width: 360px;
}
.auth-card-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.auth-card-logo .brand-word { font-size: 18px; }
.auth-h1 { font-size: 22px; font-weight: 800; margin-top: 18px; letter-spacing: -0.01em; }
.auth-h1-sub { color: var(--text-muted); font-size: 13.5px; margin-top: 6px; margin-bottom: 26px; }

.login-form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: var(--text-muted); }
.field-label { font-weight: 600; }
.field-input-wrap { position: relative; display: flex; align-items: center; }
.field input {
  width: 100%;
  background: var(--panel-2);
  border: 1.5px solid var(--panel-border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  font-size: 14.5px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-ring);
}
.field-toggle-visibility {
  position: absolute; right: 6px;
  background: none; border: none; color: var(--text-faint);
  cursor: pointer; padding: 6px; border-radius: 6px; display: flex;
}
.field-toggle-visibility:hover { color: var(--text-muted); }

.login-error {
  display: flex; align-items: center; gap: 8px;
  color: var(--bad); background: var(--bad-soft);
  border: 1px solid rgba(241,73,91,0.28);
  border-radius: var(--radius-sm);
  font-size: 13px; padding: 10px 12px; margin: 0;
}

.auth-foot { margin-top: 22px; color: var(--text-faint); font-size: 12px; text-align: center; }

@media (max-width: 880px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-brand-panel { display: none; }
  .auth-form-panel { padding: 20px; min-height: 100vh; }
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1.5px solid var(--panel-border);
  background: var(--panel-2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 650;
  cursor: pointer;
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #04211E; }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn-danger { border-color: rgba(241,73,91,0.4); color: var(--bad); background: transparent; }
.btn-danger:hover { background: var(--bad-soft); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 11px; font-size: 12.5px; }

.icon-btn {
  background: var(--panel-2); border: 1.5px solid var(--panel-border);
  color: var(--text); width: 36px; height: 36px; border-radius: var(--radius-sm);
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

/* =========================================================
   APP SHELL
   ========================================================= */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 22px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--bg-elevated);
  position: sticky; top: 0; z-index: 30;
}
.topbar-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.topbar-divider { color: var(--text-faint); }
.topbar-page { color: var(--text-muted); font-size: 13.5px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 10px; }

.icon-only-mobile { display: none; }

.conn-pill {
  display: flex; align-items: center; gap: 8px;
  border: 1.5px solid var(--panel-border);
  padding: 7px 13px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; color: var(--text-muted);
  background: var(--panel-2);
}
.conn-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--text-faint);
  box-shadow: 0 0 0 0 transparent;
}
.conn-pill.is-ready { color: var(--good); border-color: rgba(53,222,139,0.35); background: var(--good-soft); }
.conn-pill.is-ready .conn-dot { background: var(--good); animation: pulse 2.2s infinite; }
.conn-pill.is-waiting { color: var(--warn); border-color: rgba(245,166,35,0.35); background: var(--warn-soft); }
.conn-pill.is-waiting .conn-dot { background: var(--warn); }
.conn-pill.is-down { color: var(--bad); border-color: rgba(241,73,91,0.35); background: var(--bad-soft); }
.conn-pill.is-down .conn-dot { background: var(--bad); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(53,222,139,0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(53,222,139,0); }
  100% { box-shadow: 0 0 0 0 rgba(53,222,139,0); }
}
@media (prefers-reduced-motion: reduce) { .conn-pill.is-ready .conn-dot { animation: none; } }

.icon-sun, .icon-moon { display: none; }
[data-theme="dark"] .icon-moon { display: inline-block; }
[data-theme="light"] .icon-sun { display: inline-block; }

.layout { flex: 1; display: flex; min-width: 0; }

.sidenav {
  width: 232px; flex-shrink: 0;
  border-right: 1px solid var(--panel-border);
  background: var(--bg-elevated);
  padding: 18px 12px;
  display: flex; flex-direction: column; gap: 3px;
}
.nav-item {
  display: flex; align-items: center; gap: 11px;
  background: transparent; border: none; color: var(--text-muted);
  padding: 10px 12px; border-radius: var(--radius-sm); text-align: left;
  font-size: 13.5px; font-weight: 650; cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}
.nav-item:hover { background: var(--panel); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); }
.nav-item .icon { color: inherit; }

.content { flex: 1; padding: 26px; overflow-x: hidden; min-width: 0; }
.view { display: none; }
.view.active { display: block; animation: fadeIn 0.18s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(2px); } to { opacity: 1; transform: none; } }

.view-heading { margin-bottom: 18px; }
.view-heading h2 { font-size: 19px; font-weight: 800; letter-spacing: -0.01em; }
.view-heading p { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

/* ---------- Stat grid ---------- */
.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px;
}
.stat-card {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius);
  padding: 18px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: var(--shadow-card);
}
.stat-card-top { display: flex; align-items: center; justify-content: space-between; }
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 650; }
.stat-icon {
  width: 30px; height: 30px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--accent);
}
.stat-icon.stat-icon-bad { background: var(--bad-soft); color: var(--bad); }
.stat-icon.stat-icon-good { background: var(--good-soft); color: var(--good); }
.stat-value { font-family: var(--font-mono); font-size: 26px; font-weight: 700; }
.stat-good { color: var(--good); }
.stat-bad { color: var(--bad); }

/* ---------- Panels ---------- */
.panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.panel {
  background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}
.panel h3 { display: flex; align-items: center; gap: 9px; margin: 0 0 14px; font-size: 14px; font-weight: 700; letter-spacing: 0.01em; }
.panel h3 .icon { color: var(--accent); }
.kv-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--panel-border); font-size: 13px;
}
.kv-row:last-child { border-bottom: none; }
.kv-row span:first-child { color: var(--text-muted); }
.tag {
  font-family: var(--font-mono); font-size: 11px; padding: 3px 9px; border-radius: 999px;
  background: var(--panel-2); border: 1px solid var(--panel-border);
}
.action-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.hint { color: var(--text-muted); font-size: 12.5px; margin: 10px 0 0; line-height: 1.55; }
.hint strong { color: var(--text); }

/* ---------- Test OTP panel ---------- */
.test-panel { grid-column: 1 / -1; }
.test-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.test-row .field { flex: 1; min-width: 200px; }
.test-result {
  margin-top: 14px; padding: 12px 14px; border-radius: var(--radius-sm);
  font-size: 13px; display: none; align-items: center; gap: 9px;
}
.test-result.show { display: flex; }
.test-result.ok { background: var(--good-soft); color: var(--good); border: 1px solid rgba(53,222,139,0.3); }
.test-result.err { background: var(--bad-soft); color: var(--bad); border: 1px solid rgba(241,73,91,0.3); }
.test-result.pending { background: var(--warn-soft); color: var(--warn); border: 1px solid rgba(245,166,35,0.3); }

/* ---------- QR ---------- */
.qr-wrap {
  width: 100%; aspect-ratio: 1 / 1; max-width: 240px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border-radius: var(--radius-sm); overflow: hidden;
  border: 1px solid var(--panel-border);
}
.qr-image { width: 100%; height: 100%; object-fit: contain; }
.qr-placeholder { color: #8a8a8a; font-size: 12px; text-align: center; padding: 12px; font-family: var(--font-mono); }

/* ---------- Tables ---------- */
.table-panel { padding: 0; overflow: hidden; }
.table-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--panel-border);
}
.table-toolbar h3 { margin: 0; }
.table-scroll { overflow-x: auto; max-height: 65vh; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left; padding: 10px 20px; color: var(--text-muted);
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; font-weight: 700;
  background: var(--panel-2); position: sticky; top: 0;
}
td { padding: 10px 20px; border-top: 1px solid var(--panel-border); font-family: var(--font-mono); font-size: 12.5px; }
tr:hover td { background: var(--panel-2); }
.status-badge { padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 650; }
.status-sent, .status-delivered, .status-active { color: var(--good); background: var(--good-soft); }
.status-failed, .status-blocked { color: var(--bad); background: var(--bad-soft); }
.status-pending, .status-queued, .status-warn { color: var(--warn); background: var(--warn-soft); }
.empty-row td { text-align: center; color: var(--text-muted); font-family: var(--font-ui); padding: 34px; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .panel-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .sidenav {
    position: fixed; bottom: 0; left: 0; right: 0; top: auto; width: auto;
    flex-direction: row; overflow-x: auto; border-right: none;
    border-top: 1px solid var(--panel-border); padding: 8px; z-index: 20;
    justify-content: space-between; gap: 2px;
  }
  .nav-item { flex-direction: column; font-size: 10px; padding: 8px 10px; white-space: nowrap; gap: 5px; }
  .content { padding: 16px 16px 92px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .topbar-page { display: none; }
  .topbar { padding: 10px 14px; }
  .icon-only-mobile { display: inline-flex; }
  .conn-pill span:not(.conn-dot) { display: none; }
  .conn-pill { padding: 8px; }
  .test-row { flex-direction: column; align-items: stretch; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .panel { padding: 16px; }
}