/* Theme #4 - Dark Mode Premium */
/* CSS Custom Properties for Light and Dark Modes */

:root[data-theme="light"] {
  /* Background Colors */
  --bg-primary: #FAFAF9;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-hover: #F5F5F4;
  --bg-input: #FFFFFF;
  
  /* Text Colors */
  --text-primary: #1F2937;
  --text-secondary: #374151;
  --text-muted: #6B7280;
  --text-inverse: #FFFFFF;
  
  /* Accent Colors (Gold) */
  --accent: #F59E0B;
  --accent-hover: #D97706;
  --accent-light: #FCD34D;
  --accent-border: #F59E0B;
  
  /* Border Colors */
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --border-dark: #D1D5DB;
  
  /* Shadow */
  --shadow-sm: rgba(0, 0, 0, 0.05);
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-md: rgba(0, 0, 0, 0.15);
  --shadow-lg: rgba(0, 0, 0, 0.2);
  
  /* Status Colors */
  --success: #10B981;
  --success-strong: #059669;
  --success-soft: rgba(16, 185, 129, 0.16);
  --error: #EF4444;
  --error-strong: #DC2626;
  --error-soft: rgba(239, 68, 68, 0.16);
  --warning: #F59E0B;
  --info: #3B82F6;
  --info-strong: #2563EB;
  --warning-soft: rgba(245, 158, 11, 0.16);
  --info-soft: rgba(59, 130, 246, 0.16);
  
  /* Glassmorphism (minimal in light mode) */
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(245, 158, 11, 0.2);
}

:root[data-theme="dark"] {
  /* Background Colors */
  --bg-primary: #1F2937;
  --bg-secondary: #374151;
  --bg-card: #374151;
  --bg-hover: #4B5563;
  --bg-input: #374151;
  
  /* Text Colors */
  --text-primary: #F9FAFB;
  --text-secondary: #D1D5DB;
  --text-muted: #9CA3AF;
  --text-inverse: #1F2937;
  
  /* Accent Colors (Gold) */
  --accent: #F59E0B;
  --accent-hover: #FCD34D;
  --accent-light: #FDE68A;
  --accent-border: #F59E0B;
  
  /* Border Colors */
  --border: #4B5563;
  --border-light: #374151;
  --border-dark: #6B7280;
  
  /* Shadow */
  --shadow-sm: rgba(0, 0, 0, 0.2);
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-md: rgba(0, 0, 0, 0.4);
  --shadow-lg: rgba(0, 0, 0, 0.5);
  
  /* Status Colors */
  --success: #10B981;
  --success-strong: #0F766E;
  --success-soft: rgba(16, 185, 129, 0.22);
  --error: #EF4444;
  --error-strong: #F87171;
  --error-soft: rgba(239, 68, 68, 0.24);
  --warning: #F59E0B;
  --info: #3B82F6;
  --info-strong: #60A5FA;
  --warning-soft: rgba(245, 158, 11, 0.22);
  --info-soft: rgba(59, 130, 246, 0.24);
  
  /* Glassmorphism (more pronounced in dark mode) */
  --glass-bg: rgba(55, 65, 81, 0.8);
  --glass-border: rgba(245, 158, 11, 0.3);
}

/* Global Scrollbar Styles */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

[data-theme="dark"] *::-webkit-scrollbar-thumb {
  background: var(--border-dark);
}

[data-theme="dark"] *::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Default to light mode if no theme is set */
:root:not([data-theme]) {
  --bg-primary: #FAFAF9;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-hover: #F5F5F4;
  --bg-input: #FFFFFF;
  --text-primary: #1F2937;
  --text-secondary: #374151;
  --text-muted: #6B7280;
  --text-inverse: #FFFFFF;
  --accent: #F59E0B;
  --accent-hover: #D97706;
  --accent-light: #FCD34D;
  --accent-border: #F59E0B;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --border-dark: #D1D5DB;
  --shadow-sm: rgba(0, 0, 0, 0.05);
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-md: rgba(0, 0, 0, 0.15);
  --shadow-lg: rgba(0, 0, 0, 0.2);
  --success: #10B981;
  --success-strong: #059669;
  --success-soft: rgba(16, 185, 129, 0.16);
  --error: #EF4444;
  --error-strong: #DC2626;
  --error-soft: rgba(239, 68, 68, 0.16);
  --warning: #F59E0B;
  --info: #3B82F6;
  --info-strong: #2563EB;
  --warning-soft: rgba(245, 158, 11, 0.16);
  --info-soft: rgba(59, 130, 246, 0.16);
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(245, 158, 11, 0.2);
}

/* Base Styles */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

.app-content {
  position: relative;
  z-index: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  margin: 0 0 1rem 0;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  color: var(--text-secondary);
  margin: 0 0 1rem 0;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* Buttons */
.btn,
button.btn,
input[type="submit"].btn,
a.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--accent-border);
  border-radius: 8px;
  background-color: var(--accent);
  color: var(--text-inverse);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn:hover,
button.btn:hover,
a.btn:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 8px var(--shadow);
}

.btn:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
  border-color: var(--border-dark);
}

.btn-danger {
  background-color: var(--error);
  border-color: var(--error);
  color: var(--text-inverse);
}

.btn-danger:hover {
  background-color: var(--error-strong);
}

.btn-success {
  background-color: var(--success);
  border-color: var(--success);
  color: var(--text-inverse);
}

.btn-success:hover {
  background-color: var(--success-strong);
}

.btn-info {
  background-color: var(--info);
  border-color: var(--info);
  color: var(--text-inverse);
}

.btn-info:hover {
  background-color: var(--info-strong);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px var(--shadow);
  transition: all 0.3s ease;
}

[data-theme="dark"] .card {
  border-color: var(--accent-border);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.card:hover {
  box-shadow: 0 4px 12px var(--shadow-md);
  transform: translateY(-2px);
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="tel"],
input[type="url"],
textarea,
select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: var(--bg-input);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent-border);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

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

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-card);
  border-radius: 8px;
  overflow: hidden;
}

th {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.75rem;
  text-align: left;
  border-bottom: 2px solid var(--border);
}

td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

tr:hover {
  background-color: var(--bg-hover);
}

/* Badges and Pills */
.badge,
.pill {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.badge-primary,
.pill-primary {
  background-color: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
}

.badge-success {
  background-color: var(--success);
  color: var(--text-inverse);
  border-color: var(--success);
}

.badge-error,
.badge-danger {
  background-color: var(--error);
  color: var(--text-inverse);
  border-color: var(--error);
}

.badge-warning {
  background-color: var(--warning);
  color: var(--text-inverse);
  border-color: var(--warning);
}

/* Layout Helpers */
.page-shell {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem 3rem;
}

@media (max-width: 640px) {
  .page-shell {
    padding: 0 1rem 2.5rem;
    margin-top: 1.5rem;
  }
}

.page-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-title {
  margin: 0;
  font-size: clamp(1.75rem, 2.1vw, 2.25rem);
  line-height: 1.2;
  color: var(--text-primary);
}

.page-description {
  margin: 0;
  color: var(--text-secondary);
  max-width: 720px;
}

.page-header__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-toolbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Card Layouts */
.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.card-grid .card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-height: 100%;
}

.card-grid .card p {
  margin: 0;
  color: var(--text-secondary);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: auto;
}

/* Filter Bars */
.filter-bar {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.filter-bar .filter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  grid-column: 1 / -1;
}

@media (max-width: 768px) {
  .filter-bar {
    grid-template-columns: 1fr;
  }
}

/* Table Helpers */
.table-card {
  overflow-x: auto;
}

.table-empty {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-muted);
}

.table-title {
  font-weight: 600;
  color: var(--text-primary);
}

.table-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.table-strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* Text Helpers */
.text-muted {
  color: var(--text-muted);
}

.text-right {
  text-align: right;
}

.text-center {
  text-align: center;
}

/* Value Chips */
.mono-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 0.5rem;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.85rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.mono-chip--new {
  background: var(--success-soft);
  border-color: var(--success);
  color: var(--success);
}

.mono-chip--old {
  background: var(--error-soft);
  border-color: var(--error);
  color: var(--error);
}

.mono-chip--neutral {
  background: var(--bg-secondary);
  border-color: var(--border);
  color: var(--text-secondary);
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.chip-success {
  background: var(--success-soft);
  border-color: var(--success);
  color: var(--success);
}

.chip-warning {
  background: var(--warning-soft);
  border-color: var(--warning);
  color: var(--warning);
}

.chip-error {
  background: var(--error-soft);
  border-color: var(--error);
  color: var(--error);
}

.chip-info {
  background: var(--info-soft);
  border-color: var(--info);
  color: var(--info);
}

.delta-positive {
  color: var(--success);
  font-weight: 600;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.delta-negative {
  color: var(--error);
  font-weight: 600;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.delta-neutral {
  font-weight: 600;
  font-family: "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  color: var(--text-primary);
}

/* Button Variants */
.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border);
  box-shadow: none;
}

.btn-ghost:hover {
  background-color: var(--bg-hover);
  border-color: var(--accent-border);
  box-shadow: 0 4px 8px var(--shadow-sm);
}

/* Alerts */
.alert {
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid;
  margin-bottom: 1rem;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
  color: var(--success);
}

.alert-error,
.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
  color: var(--error);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border-color: var(--info);
  color: var(--info);
}

.impersonation-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0;
  border-radius: 0;
}

.impersonation-banner__message {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.impersonation-banner__hint {
  font-size: 0.9rem;
  font-weight: 500;
}

@media (max-width: 768px) {
  .impersonation-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .impersonation-banner__hint {
    font-size: 0.85rem;
  }
}

/* Navbar Styles */
.navbar {
  background-color: var(--bg-secondary);
  border-bottom: 2px solid var(--accent-border);
  padding: 0.75rem 1rem;
}

.navbar-link {
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: var(--bg-card);
  text-decoration: none;
  transition: all 0.2s ease;
}

.navbar-link:hover {
  background-color: var(--bg-hover);
  border-color: var(--accent-border);
  color: var(--accent);
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--accent);
  font-size: 1.25rem;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--accent);
  color: var(--text-inverse);
  transform: rotate(15deg);
}

/* Modals */
.modal-overlay {
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--accent-border);
  border-radius: 12px;
  box-shadow: 0 10px 40px var(--shadow-lg);
}

[data-theme="dark"] .modal-dialog {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Utility Classes */
.text-muted {
  color: var(--text-muted);
}

.text-primary {
  color: var(--text-primary);
}

.text-secondary {
  color: var(--text-secondary);
}

.bg-primary {
  background-color: var(--bg-primary);
}

.bg-secondary {
  background-color: var(--bg-secondary);
}

.bg-card {
  background-color: var(--bg-card);
}

.border-accent {
  border-color: var(--accent-border);
}

.shadow {
  box-shadow: 0 2px 8px var(--shadow);
}

.shadow-md {
  box-shadow: 0 4px 12px var(--shadow-md);
}

.shadow-lg {
  box-shadow: 0 10px 40px var(--shadow-lg);
}

/* Responsive */
@media (max-width: 768px) {
  .card {
    padding: 1rem;
  }
  
  .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
}