:root {
  color-scheme: light dark;
  --blue-primary: #0064A6;
  --blue-accent: #0090CF;
  --bg-light: #F5F7FA;
  --bg-dark: #0B0C10;
  --text-light: #111111;
  --text-dark: #F5F7FA;
  --card-light: #FFFFFF;
  --card-dark: #161821;
  --border-radius-lg: 18px;
  --shadow-soft: 0 14px 40px rgba(0,0,0,0.18);
  --transition-fast: 0.18s ease-out;
  --max-width: 420px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top, rgba(0,144,207,0.18), transparent 55%), #020308;
  color: var(--text-dark);
}

body.light {
  background: radial-gradient(circle at top, rgba(0,144,207,0.12), transparent 55%), var(--bg-light);
  color: var(--text-light);
}

.app-shell {
  width: 100%;
  max-width: var(--max-width);
  padding: 16px;
}

.card {
  background: var(--card-dark);
  border-radius: var(--border-radius-lg);
  padding: 24px 20px 18px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);
}

body.light .card {
  background: var(--card-light);
  border-color: rgba(0,0,0,0.04);
}

.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.logo-circle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, var(--blue-accent), var(--blue-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 8px 24px rgba(0,100,166,0.6);
}

.app-title-group {
  display: flex;
  flex-direction: column;
}

.app-title {
  font-size: 20px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.app-subtitle {
  font-size: 12px;
  opacity: 0.7;
}

/* Forms */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.label-row label {
  font-size: 13px;
  font-weight: 500;
}

.label-row .hint {
  font-size: 11px;
  opacity: 0.6;
}

input[type="text"],
input[type="password"],
input[type="email"] {
  width: 100%;
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(8,10,20,0.85);
  color: var(--text-dark);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

body.light input[type="text"],
body.light input[type="password"],
body.light input[type="email"] {
  background: rgba(255,255,255,0.95);
  border-color: rgba(0,0,0,0.1);
  color: var(--text-light);
}

input::placeholder {
  opacity: 0.55;
}

input:focus {
  outline: none;
  border-color: var(--blue-accent);
  box-shadow: 0 0 0 1px rgba(0,144,207,0.45);
}

/* Buttons */

.btn-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

button {
  cursor: pointer;
}

.btn-primary {
  width: 100%;
  border-radius: 999px;
  padding: 10px 14px;
  border: none;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  background: linear-gradient(120deg, var(--blue-primary), var(--blue-accent));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 10px 30px rgba(0,100,166,0.55);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 16px 32px rgba(0,100,166,0.7);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 8px 22px rgba(0,100,166,0.55);
}

.btn-secondary {
  width: 100%;
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 13px;
  border: 1px solid rgba(255,255,255,0.18);
  background: transparent;
  color: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

body.light .btn-secondary {
  border-color: rgba(0,0,0,0.12);
}

/* Links & misc */

.auth-footer {
  margin-top: 12px;
  font-size: 12px;
  text-align: center;
  opacity: 0.8;
}

.auth-footer button {
  border: none;
  background: none;
  color: var(--blue-accent);
  font-size: 12px;
  padding: 0;
  text-decoration: underline;
}

.status-banner {
  margin-top: 10px;
  font-size: 12px;
  border-radius: 10px;
  padding: 8px 10px;
  display: none;
}

.status-banner.visible {
  display: block;
}

.status-banner.info {
  background: rgba(0,144,207,0.1);
  border: 1px solid rgba(0,144,207,0.4);
}

.status-banner.error {
  background: rgba(200,40,40,0.08);
  border: 1px solid rgba(220,70,70,0.4);
}

.status-banner.success {
  background: rgba(40,180,90,0.08);
  border: 1px solid rgba(40,180,90,0.4);
}

/* Hub */

.hub-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.hub-user-label {
  font-size: 12px;
  opacity: 0.7;
}

.theme-pill {
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.15);
  padding: 6px 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
}

body.light .theme-pill {
  border-color: rgba(0,0,0,0.12);
}

.theme-select {
  border-radius: 999px;
  border: none;
  background: transparent;
  color: inherit;
  font-size: 11px;
}

.theme-select:focus {
  outline: none;
}

.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 4px;
}

@media (min-width: 480px) {
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.app-tile {
  border-radius: 16px;
  padding: 14px 12px;
  background: radial-gradient(circle at top left, rgba(0,144,207,0.24), transparent 55%), rgba(7,9,16,0.95);
  border: 1px solid rgba(0,144,207,0.25);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 92px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

body.light .app-tile {
  background: radial-gradient(circle at top left, rgba(0,144,207,0.14), transparent 55%), #FFFFFF;
  border-color: rgba(0,0,0,0.06);
}

.app-tile:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(0,100,166,0.5);
  border-color: rgba(0,144,207,0.7);
}

.app-tile-title {
  font-size: 14px;
  font-weight: 600;
}

.app-tile-sub {
  font-size: 11px;
  opacity: 0.8;
}

.app-badge {
  align-self: flex-start;
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(0,144,207,0.16);
  color: var(--blue-accent);
}

body.light .app-badge {
  background: rgba(0,144,207,0.08);
}

/* Smart Route placeholder */

.placeholder-box {
  border-radius: 14px;
  padding: 12px 10px;
  margin-top: 8px;
  font-size: 12px;
  background: rgba(0,0,0,0.3);
}

body.light .placeholder-box {
  background: rgba(0,0,0,0.04);
}

.tag-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.tag-pill {
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.16);
  opacity: 0.9;
}

body.light .tag-pill {
  border-color: rgba(0,0,0,0.12);
}

/* Top nav (for internal pages) */

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.nav-back {
  font-size: 12px;
  opacity: 0.85;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.nav-back button {
  border: none;
  background: none;
  color: inherit;
  font-size: 12px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-back button span.icon {
  font-size: 14px;
}

.badge-soft {
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(0,144,207,0.18);
  color: var(--blue-accent);
}

body.light .badge-soft {
  background: rgba(0,144,207,0.08);
}

/* Utility */

.small {
  font-size: 11px;
  opacity: 0.7;
}

.link-inline {
  border: none;
  background: none;
  color: var(--blue-accent);
  text-decoration: underline;
  padding: 0;
  font-size: inherit;
}

.admin-users table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

.admin-users th,
.admin-users td {
    border: 1px solid #ccc;
    padding: 6px 8px;
    text-align: left;
}

.admin-users th {
    background-color: #f0f0f0;
}

.btn-secondary {
    font-size: 0.85rem;
    padding: 4px 8px;
    margin: 2px;
}