/* Shared styles for the login page and the user portal. */
:root {
  --bg: #0c0e13;
  --panel: #161a22;
  --panel-2: #1e242f;
  --border: #2a3140;
  --text: #dbe1ec;
  --muted: #8a93a3;
  --primary: #4f8cff;
  --primary-2: #38c6d9;
  --danger: #e35d6a;
  --success: #5dc97a;
  --warn: #d8a44f;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  min-height: 100vh;
}
.muted { color: var(--muted); }
.hidden { display: none !important; }
.mono { font-family: ui-monospace, SFMono-Regular, "JetBrains Mono", monospace; }

/* ===================== auth (login/register) ===================== */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.auth-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(79, 140, 255, 0.16), transparent 60%),
    radial-gradient(800px 500px at 110% 110%, rgba(56, 198, 217, 0.10), transparent 60%);
  pointer-events: none;
}
.auth-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: linear-gradient(180deg, rgba(30, 36, 47, 0.9), rgba(22, 26, 34, 0.96));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 30px 26px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.auth-brand { text-align: center; margin-bottom: 20px; }
.auth-logo {
  width: 52px; height: 52px;
  margin: 0 auto 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 6px 18px rgba(79, 140, 255, 0.35);
}
.auth-brand h1 { font-size: 20px; margin: 0 0 4px; letter-spacing: 0.5px; }
.auth-brand p { margin: 0; font-size: 12px; }

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 18px;
}
.auth-tab {
  border: none;
  background: none;
  color: var(--muted);
  padding: 8px 0;
  font-size: 13px;
  border-radius: 6px;
  cursor: pointer;
}
.auth-tab.active {
  background: var(--panel-2);
  color: var(--text);
  font-weight: 600;
}

.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--muted);
}
.auth-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
.auth-form input:focus { border-color: var(--primary); }
.auth-note {
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  background: rgba(79, 140, 255, 0.08);
  border: 1px solid rgba(79, 140, 255, 0.25);
  border-radius: 8px;
  padding: 9px 11px;
}
.auth-submit {
  margin-top: 6px;
  background: linear-gradient(135deg, var(--primary), #3f7ae8);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px 0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  cursor: pointer;
  transition: filter 0.15s;
}
.auth-submit:hover { filter: brightness(1.1); }
.auth-msg {
  margin-top: 14px;
  font-size: 12px;
  padding: 9px 11px;
  border-radius: 8px;
  text-align: center;
}
.auth-msg.err { background: rgba(227, 93, 106, 0.12); border: 1px solid rgba(227, 93, 106, 0.4); color: #ff9aa5; }
.auth-msg.ok  { background: rgba(93, 201, 122, 0.10); border: 1px solid rgba(93, 201, 122, 0.4); color: #8fe2a8; }

/* ===================== portal ===================== */
.portal-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 22px;
  background: rgba(16, 19, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.portal-header .logo {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
}
.portal-header h1 { font-size: 16px; margin: 0; }
.portal-header .spacer { flex: 1; }
.portal-header .who { font-size: 12px; color: var(--muted); }
.portal-header .who b { color: var(--text); }

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 7px 14px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { background: #2c3340; }
.btn.primary {
  background: linear-gradient(135deg, var(--primary), #3f7ae8);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}
.btn.primary:hover { filter: brightness(1.1); }
.btn.ghost { background: none; }
.btn.small { padding: 4px 10px; font-size: 12px; }

.portal-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 22px 20px 60px;
}

.section-title {
  font-size: 13px;
  color: var(--muted);
  margin: 26px 2px 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.section-title:first-child { margin-top: 4px; }

/* --- overview stat cards --- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-card .k { font-size: 12px; color: var(--muted); }
.stat-card .v { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }
.stat-card .v.small { font-size: 17px; }
.stat-card .sub { font-size: 11px; color: var(--muted); }
.stat-card .v .unit { font-size: 13px; color: var(--muted); font-weight: 400; margin-left: 2px; }
.stat-card.ok    .v { color: var(--success); }
.stat-card.warn  .v { color: var(--warn); }
.stat-card.bad   .v { color: var(--danger); }

/* --- progress bars --- */
.bar {
  position: relative;
  height: 7px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 4px;
}
.bar > i {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  transition: width 0.4s;
}
.bar.warn > i { background: linear-gradient(90deg, #d8a44f, #e8bd6b); }
.bar.bad  > i { background: linear-gradient(90deg, #e35d6a, #f08791); }

/* --- subscription card --- */
.sub-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.sub-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
  flex-wrap: wrap;
}
.sub-url {
  flex: 1;
  min-width: 240px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 12px;
  font-size: 12px;
  color: #9fc1ff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sub-hint { font-size: 11px; color: var(--muted); margin-top: 10px; line-height: 1.7; }

/* --- node cards --- */
.node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
}
.node-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.node-card.blocked { border-color: rgba(227, 93, 106, 0.55); }
.node-card h3 {
  margin: 0 0 10px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.node-card h3 .region-chip {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 5px;
  background: rgba(79, 140, 255, 0.15);
  color: #9fc1ff;
  border: 1px solid rgba(79, 140, 255, 0.3);
}
.node-card h3 .state { margin-left: auto; font-size: 11px; }
.node-card .quota-row { margin: 9px 0 2px; }
.node-card .quota-head {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted);
}
.node-card .quota-head .num { color: var(--text); font-variant-numeric: tabular-nums; }
.tag {
  display: inline-block;
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--panel-2);
}
.tag.ok { background: rgba(93, 201, 122, 0.12); border-color: rgba(93, 201, 122, 0.4); color: #8fe2a8; }
.tag.warn { background: rgba(216, 164, 79, 0.12); border-color: rgba(216, 164, 79, 0.45); color: #ffd089; }
.tag.bad { background: rgba(227, 93, 106, 0.14); border-color: rgba(227, 93, 106, 0.5); color: #ff9aa5; }

/* --- chart --- */
.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.chart-toolbar {
  display: flex;
  gap: 6px;
  align-items: center;
  font-size: 11px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.range-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  padding: 3px 10px;
  font-size: 11px;
  cursor: pointer;
}
.range-btn:hover { background: #2c3340; }
.range-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.chart-hint { margin-left: auto; color: var(--muted); }
.chart-container { position: relative; width: 100%; }
#trafficChart {
  width: 100%;
  height: 280px;
  display: block;
  background: #0d1017;
  border-radius: 8px;
  cursor: grab;
  user-select: none;
}
#trafficChart:active { cursor: grabbing; }
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(16, 20, 27, 0.96);
  border: 1px solid var(--border);
  padding: 6px 9px;
  border-radius: 6px;
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, monospace;
  z-index: 10;
  white-space: nowrap;
}
.chart-tooltip.hidden { display: none; }

/* --- toast --- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  z-index: 200;
  max-width: 80vw;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.toast.hidden { display: none; }
.toast.error { border-color: var(--danger); }
.toast.success { border-color: var(--success); }

.empty-hint {
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 26px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 640px) {
  .portal-main { padding: 16px 12px 50px; }
  .stat-card .v { font-size: 18px; }
}