:root {
  --font-family-base: "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-h3: 1.35rem;
  --font-size-h2: 1.7rem;
  --font-size-h1: 2rem;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --shadow-sm: 0 8px 18px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 14px 30px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 18px 42px rgba(15, 23, 42, 0.14);
  --button-sm-height: 34px;
  --button-sm-px: 12px;
  --button-md-height: 40px;
  --button-md-px: 16px;
  --button-lg-height: 46px;
  --button-lg-px: 18px;
  --bg-app: #f4f8ff;
  --bg-surface: #fefefe;
  --bg-surface-muted: #f7faff;
  --bg-surface-strong: #edf4ff;
  --bg-sidebar: #071a3d;
  --bg-sidebar-elevated: #0d2454;
  --border-default: #dbe7ff;
  --border-strong: #bfd1f6;
  --text-primary: #132238;
  --text-secondary: #31435f;
  --text-muted: #6d7f98;
  --text-inverse: #f8fafc;
  --accent-primary: #0544a4;
  --accent-primary-hover: #043785;
  --accent-focus-ring: rgba(5, 68, 164, 0.22);
  --accent-soft: #edf4ff;
  --success-bg: #2baee7;
  --success-hover: #1593ca;
  --warning-bg: #a6d13e;
  --danger-bg: #d63d50;
  --danger-hover: #b62c40;
  --state-disabled-opacity: 0.55;
}

.dark {
  --bg-app: #091224;
  --bg-surface: #12213f;
  --bg-surface-muted: #162848;
  --bg-surface-strong: #1b3158;
  --bg-sidebar: #061129;
  --bg-sidebar-elevated: #0c1c42;
  --border-default: rgba(146, 181, 255, 0.15);
  --border-strong: rgba(146, 181, 255, 0.28);
  --text-primary: #fefefe;
  --text-secondary: #d9e7ff;
  --text-muted: #8ea8cf;
  --text-inverse: #f8fafc;
  --accent-primary: #2baee7;
  --accent-primary-hover: #54c3f1;
  --accent-focus-ring: rgba(43, 174, 231, 0.28);
  --accent-soft: rgba(43, 174, 231, 0.14);
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-app) !important;
  color: var(--text-primary);
}

.surface-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 1.25rem;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

.surface-muted {
  background-color: var(--bg-surface-muted);
  border: 1px solid var(--border-default);
}

.app-input {
  background-color: var(--bg-surface-muted);
  border: 1px solid var(--border-default);
  color: var(--text-primary) !important;
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.app-input::placeholder {
  color: var(--text-muted);
}

.app-input:focus {
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 0 2px var(--accent-focus-ring) !important;
  outline: 0;
}

.dark .app-input,
.dark .app-input option,
.dark select,
.dark input,
.dark textarea {
  color: #ffffff !important;
  background-color: #24344a !important;
  border-color: #475569 !important;
}

.dark .app-input:focus,
.dark select:focus,
.dark input:focus,
.dark textarea:focus {
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 2px var(--accent-focus-ring) !important;
}

.app-table {
  width: 100%;
  border-collapse: collapse;
}

.app-table th,
.app-table td {
  color: var(--text-primary) !important;
  padding: 14px 18px !important;
  border-bottom: 1px solid var(--border-default);
  vertical-align: top;
}

.app-table th {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--text-muted) !important;
}

.dark .app-table th,
.dark .app-table td {
  color: #ffffff !important;
  border-bottom: 1px solid rgba(146, 181, 255, 0.14) !important;
}

.app-sidebar {
  background-color: var(--bg-sidebar) !important;
  background-image:
    radial-gradient(circle at top left, rgba(43, 174, 231, 0.18), transparent 26%),
    linear-gradient(180deg, rgba(5, 68, 164, 0.12) 0%, transparent 22%);
}

.app-sidebar .sidebar-link {
  color: rgba(254, 254, 254, 0.78);
  backdrop-filter: blur(4px);
}

.app-sidebar .sidebar-link .menu-icon {
  color: rgba(43, 174, 231, 0.95);
  opacity: 0.92;
}

.app-sidebar .sidebar-link.is-active {
  background: linear-gradient(135deg, rgba(5, 68, 164, 0.95), rgba(43, 174, 231, 0.55));
  color: #ffffff;
  border: 1px solid rgba(146, 181, 255, 0.28);
  box-shadow: 0 16px 28px rgba(5, 68, 164, 0.25);
}

.app-sidebar .sidebar-link.is-active .menu-icon {
  opacity: 1;
  color: #ffffff;
}

.app-sidebar .sidebar-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border-color: rgba(146, 181, 255, 0.12);
}

.app-button-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 12px 24px rgba(5, 68, 164, 0.18);
}

.app-button-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

.app-button-secondary {
  border: 1px solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-secondary);
}

.app-button-outline {
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.45);
  color: var(--text-secondary);
}

.dark .app-button-outline {
  background: rgba(255, 255, 255, 0.03);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 9999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
}