:root {
  /* Glassmorphism Light Theme */
  --bg-canvas: #eef2ff;
  --bg-surface: rgba(255, 255, 255, 0.72);
  --bg-muted: rgba(255, 255, 255, 0.45);
  --bg-soft: rgba(255, 255, 255, 0.32);
  --line: rgba(255, 255, 255, 0.45);
  --line-strong: rgba(255, 255, 255, 0.55);
  --text: #0f172a;
  --text-muted: #475569;

  --primary: #4f46e5;
  --primary-strong: #4338ca;
  --primary-soft: rgba(79, 70, 229, 0.12);
  --primary-light: rgba(79, 70, 229, 0.22);

  --success: #059669;
  --success-soft: rgba(5, 150, 105, 0.12);
  --warning: #d97706;
  --warning-soft: rgba(217, 119, 6, 0.12);
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.12);

  --tag-warn-border: rgba(217, 119, 6, 0.35);
  --tag-warn-bg: rgba(217, 119, 6, 0.1);
  --tag-warn-text: #92400e;
  --tag-danger-border: rgba(220, 38, 38, 0.35);
  --tag-danger-bg: rgba(220, 38, 38, 0.1);
  --tag-danger-text: #991b1b;

  /* Glass Effect Variables */
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-strong: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-border-strong: rgba(255, 255, 255, 0.65);
  --glass-blur: blur(10px);
  --glass-blur-strong: blur(16px);
  --glass-shadow:
    0 8px 32px rgba(31, 38, 135, 0.1),
    0 1px 3px rgba(31, 38, 135, 0.06);
  --glass-shadow-sm:
    0 4px 16px rgba(31, 38, 135, 0.08),
    0 1px 2px rgba(31, 38, 135, 0.04);
  --glass-inset-light: inset 0 1px 0 rgba(255, 255, 255, 0.6);

  /* Shadows - Softer for glassmorphism */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-card: var(--glass-shadow);
  --shadow-btn: 0 4px 14px rgba(79, 70, 229, 0.28);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --shadow-focus: 0 0 0 3px rgba(79, 70, 229, 0.18);

  /* Spacing & Radius */
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-card: 16px;
  --radius-field: 10px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Table & content area variables (shared across pages) */
  --table-line: #c9d4e3;
  --table-head: #e2e8f0;
  --table-row-hover: #f1f5f9;
  --recent-bg: rgba(255, 255, 255, 0.72);
  --recent-border: #d1dae6;
  --recent-table-head: #e8edf3;
}

/* Dark Mode - Deep vibrant background for glassmorphism */
[data-theme="dark"] {
  --bg-canvas: #020617;
  --bg-surface: rgba(15, 23, 42, 0.65);
  --bg-muted: rgba(30, 41, 59, 0.55);
  --bg-soft: rgba(30, 41, 59, 0.35);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f1f5f9;
  --text-muted: #94a3b8;

  --primary: #818cf8;
  --primary-strong: #6366f1;
  --primary-soft: rgba(99, 102, 241, 0.18);
  --primary-light: rgba(99, 102, 241, 0.28);

  --success: #34d399;
  --success-soft: rgba(52, 211, 153, 0.15);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.15);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.15);

  --tag-warn-border: rgba(251, 191, 36, 0.35);
  --tag-warn-bg: rgba(251, 191, 36, 0.12);
  --tag-warn-text: #fbbf24;
  --tag-danger-border: rgba(248, 113, 113, 0.35);
  --tag-danger-bg: rgba(248, 113, 113, 0.12);
  --tag-danger-text: #f87171;

  /* Dark glass */
  --glass-bg: rgba(15, 23, 42, 0.55);
  --glass-bg-strong: rgba(15, 23, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-strong: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(12px);
  --glass-blur-strong: blur(20px);
  --glass-shadow:
    0 8px 32px rgba(0, 0, 0, 0.35),
    0 1px 3px rgba(0, 0, 0, 0.25);
  --glass-shadow-sm:
    0 4px 16px rgba(0, 0, 0, 0.25),
    0 1px 2px rgba(0, 0, 0, 0.2);
  --glass-inset-light: inset 0 1px 0 rgba(255, 255, 255, 0.08);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-card: var(--glass-shadow);
  --shadow-btn: 0 4px 14px rgba(99, 102, 241, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-focus: 0 0 0 3px rgba(99, 102, 241, 0.25);

  /* Dark mode table & content */
  --table-line: rgba(255, 255, 255, 0.15);
  --table-head: rgba(255, 255, 255, 0.1);
  --table-row-hover: rgba(255, 255, 255, 0.07);
  --recent-bg: rgba(15, 23, 42, 0.55);
  --recent-border: rgba(255, 255, 255, 0.14);
  --recent-table-head: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

/* Vibrant gradient background - the canvas for glassmorphism */
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(ellipse at 10% 0%, rgba(99, 102, 241, 0.18) 0%, transparent 45%),
    radial-gradient(ellipse at 90% 10%, rgba(59, 130, 246, 0.14) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 100%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 40%),
    linear-gradient(160deg, #eef2ff 0%, #e0e7ff 25%, #dbeafe 50%, #f0e9ff 75%, #fdf4ff 100%);
  font-family:
    "Inter",
    "Segoe UI Variable Text",
    "PingFang SC",
    "Microsoft YaHei UI",
    "Noto Sans SC",
    sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[data-theme="dark"] body {
  background:
    radial-gradient(ellipse at 10% 0%, rgba(99, 102, 241, 0.3) 0%, transparent 45%),
    radial-gradient(ellipse at 90% 10%, rgba(59, 130, 246, 0.22) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 100%, rgba(139, 92, 246, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 40%),
    linear-gradient(160deg, #020617 0%, #0f172a 30%, #1e1b4b 60%, #1e3a5f 85%, #0f172a 100%);
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

p {
  color: var(--text-muted);
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

/* Base card - glass effect with performance-considered blur */
.card,
.auth-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--glass-shadow), var(--glass-inset-light);
}

/* High-impact glass cards (headers, modals) */
.glass-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--glass-shadow), var(--glass-inset-light);
}

/* No-blur glass for performance-critical areas (tables, scroll areas) */
.glass-plain {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-sm);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-field);
  background: var(--glass-bg-strong);
  color: var(--text);
  padding: 9px 11px;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.65;
}

input:hover,
textarea:hover,
select:hover {
  border-color: var(--line-strong);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
}

input[readonly],
input[disabled],
textarea[disabled],
select[disabled] {
  background: var(--bg-muted);
  color: var(--text-muted);
  opacity: 0.7;
}

/* Buttons - subtle glass effect */
.btn {
  position: relative;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  color: var(--text);
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 40px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast),
    color var(--transition-fast);
  will-change: transform;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow-sm), var(--glass-inset-light);
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
  box-shadow: var(--glass-shadow), var(--glass-inset-light);
  background: var(--glass-bg-strong);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--glass-shadow-sm);
}

.btn.primary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  box-shadow: var(--shadow-btn);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.btn.primary:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: linear-gradient(135deg, var(--primary-strong) 0%, var(--primary-strong) 100%);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.38);
}

.btn.danger {
  border-color: rgba(220, 38, 38, 0.25);
  background: var(--danger-soft);
  color: var(--danger);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.btn.danger:hover {
  background: var(--danger-soft);
  border-color: var(--danger);
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.2);
}

.btn.success {
  border-color: rgba(5, 150, 105, 0.25);
  background: var(--success-soft);
  color: var(--success);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.btn.is-loading {
  cursor: wait;
  pointer-events: none;
}

.btn.is-loading::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.btn:disabled,
.btn[disabled] {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.user-info,
.admin-user,
.report-user {
  font-size: 13px;
  color: var(--text);
  padding: 8px 12px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow-sm);
}

.auth-message,
.admin-message,
.report-message {
  position: fixed;
  right: 16px;
  bottom: 16px;
  max-width: min(90vw, 420px);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  color: var(--text);
  border-radius: var(--radius-card);
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-lg);
  padding: 12px 14px;
  font-size: 13px;
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease;
  pointer-events: none;
  z-index: 40;
}

.auth-message.show,
.admin-message.show,
.report-message.show {
  opacity: 1;
  transform: translateY(0);
}

.app-toast-stack {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  pointer-events: none;
}

.app-toast {
  pointer-events: auto;
  max-width: min(88vw, 520px);
  border-radius: var(--radius-card);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  line-height: 1.45;
  opacity: 0;
  transform: translateY(-10px) scale(0.98);
  transition:
    opacity 0.26s ease,
    transform 0.26s ease;
  cursor: pointer;
  overflow-wrap: anywhere;
}

.app-toast.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.app-toast.hide {
  opacity: 0;
  transform: translateY(-8px) scale(0.98);
}

.app-toast-sm {
  font-size: 12px;
  padding: 8px 10px;
  max-width: min(72vw, 320px);
}

.app-toast-md {
  font-size: 13px;
  padding: 10px 12px;
}

.app-toast-lg {
  font-size: 14px;
  padding: 12px 14px;
}

.app-toast-success {
  border-color: rgba(5, 150, 105, 0.35);
  background: color-mix(in srgb, var(--success-soft) 50%, var(--glass-bg-strong) 50%);
  color: var(--success);
}

.app-toast-info {
  border-color: rgba(79, 70, 229, 0.35);
  background: color-mix(in srgb, var(--primary-soft) 50%, var(--glass-bg-strong) 50%);
  color: var(--primary-strong);
}

.app-toast-warning {
  border-color: rgba(217, 119, 6, 0.35);
  background: color-mix(in srgb, var(--warning-soft) 50%, var(--glass-bg-strong) 50%);
  color: var(--warning);
}

.app-toast-error {
  border-color: rgba(220, 38, 38, 0.35);
  background: color-mix(in srgb, var(--danger-soft) 50%, var(--glass-bg-strong) 50%);
  color: var(--danger);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes fadeUp {
  from {
    transform: translateY(8px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.page,
.admin-page,
.reports-page,
.auth-page {
  animation: fadeUp 0.24s ease-out;
}

/* Theme toggle - glass effect */
.theme-toggle {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glass-shadow-sm);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.theme-toggle:hover {
  transform: scale(1.05);
  border-color: var(--primary);
}

.theme-toggle .icon-moon {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* Background decor adjustments for dark mode */
[data-theme="dark"] .page-bg-decor .decor-shape {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.08) 100%);
  opacity: 0.4;
}

/* Custom scrollbar - glass style */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-muted);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-corner {
  background: var(--bg-muted);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) var(--bg-muted);
}

/* Reduced motion - performance optimization */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .decor-shape,
  .shape {
    animation: none !important;
  }
}