/* =============================================
   M-SYSTEM Design System — common.css
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* =============================================
   CSS Variables — Dark Theme (default)
   ============================================= */
:root,
html[data-theme="dark"] {
  /* Фоны */
  --m-bg-body: #0f172a;
  --m-bg-surface: #1e293b;
  --m-bg-surface-alt: #334155;
  --m-bg-elevated: #0f172a;
  --m-bg-input: #334155;

  /* Текст */
  --m-text-primary: #e2e8f0;
  --m-text-secondary: #cbd5e1;
  --m-text-muted: #94a3b8;
  --m-text-dim: #64748b;

  /* Границы */
  --m-border: #334155;
  --m-border-strong: #475569;

  /* Область результатов (judge.html) */
  --m-bg-results: #1e293b;
  --m-bg-results-card: #0f172a;
  --m-bg-results-header: #1e293b;
  --m-text-results: #e2e8f0;
  --m-bg-results-even: #253349;
  --m-bg-results-hover: #334155;
  --m-border-results: #334155;

  /* Бейджи */
  --m-badge-ok-bg: #16a34a;
  --m-badge-ok-text: #ffffff;
  --m-badge-fail-bg: #dc2626;
  --m-badge-fail-text: #ffffff;
  --m-badge-warn-bg: #eab308;
  --m-badge-warn-text: #000000;

  /* Семантические цвета */
  --m-success: #22c55e;
  --m-danger: #ef4444;
  --m-warning: #f59e0b;
  --m-info: #3b82f6;

  /* Радиусы */
  --m-radius-sm: 4px;
  --m-radius-md: 6px;
  --m-radius-lg: 8px;
  --m-radius-xl: 12px;

  /* Тени */
  --m-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --m-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --m-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);

  /* Шрифты */
  --m-font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --m-font-mono: 'Courier New', monospace;

  /* Акцент */
  --m-accent: #3b82f6;
  --m-accent-hover: #2563eb;

  /* Login */
  --m-login-card-bg: #111a2e;
  --m-login-card-border: #203055;
  --m-login-input-bg: #0b1220;
  --m-login-input-border: #2a3f6f;

  /* Instruction page */
  --m-instr-hero-gradient: linear-gradient(180deg, rgba(59,130,246,0.15) 0%, transparent 100%);
  --m-instr-card-bg: rgba(30, 41, 59, 0.8);
  --m-instr-feature-bg: rgba(15, 23, 42, 0.6);
}

/* =============================================
   CSS Variables — Light Theme
   ============================================= */
html[data-theme="light"] {
  /* Фоны */
  --m-bg-body: #f1f5f9;
  --m-bg-surface: #ffffff;
  --m-bg-surface-alt: #f1f5f9;
  --m-bg-elevated: #ffffff;
  --m-bg-input: #f1f5f9;

  /* Текст */
  --m-text-primary: #0f172a;
  --m-text-secondary: #334155;
  --m-text-muted: #64748b;
  --m-text-dim: #94a3b8;

  /* Границы */
  --m-border: #e2e8f0;
  --m-border-strong: #cbd5e1;

  /* Область результатов */
  --m-bg-results: #f8fafc;
  --m-bg-results-card: #ffffff;
  --m-bg-results-header: #f1f5f9;
  --m-text-results: #0f172a;
  --m-bg-results-even: #f8fafc;
  --m-bg-results-hover: #e0f2fe;
  --m-border-results: #e2e8f0;

  /* Бейджи */
  --m-badge-ok-bg: #dcfce7;
  --m-badge-ok-text: #166534;
  --m-badge-fail-bg: #fee2e2;
  --m-badge-fail-text: #991b1b;
  --m-badge-warn-bg: #fef3c7;
  --m-badge-warn-text: #92400e;

  /* Семантические цвета */
  --m-success: #16a34a;
  --m-danger: #dc2626;
  --m-warning: #d97706;
  --m-info: #2563eb;

  /* Тени — более мягкие для светлой */
  --m-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --m-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --m-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Акцент */
  --m-accent: #2563eb;
  --m-accent-hover: #1d4ed8;

  /* Login */
  --m-login-card-bg: #ffffff;
  --m-login-card-border: #e2e8f0;
  --m-login-input-bg: #f8fafc;
  --m-login-input-border: #cbd5e1;

  /* Instruction page */
  --m-instr-hero-gradient: linear-gradient(180deg, rgba(59,130,246,0.08) 0%, transparent 100%);
  --m-instr-card-bg: rgba(255, 255, 255, 0.9);
  --m-instr-feature-bg: rgba(241, 245, 249, 0.8);
}

/* =============================================
   Base Reset
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
}

/* =============================================
   Кнопка переключения темы
   ============================================= */
.m-theme-toggle {
  background: none;
  border: 1px solid var(--m-border-strong);
  color: var(--m-text-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--m-radius-md);
  font-size: 1em;
  line-height: 1;
  transition: background 0.2s, color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.m-theme-toggle:hover {
  background: var(--m-bg-surface-alt);
  color: var(--m-text-primary);
}

/* =============================================
   Leaflet — тема-зависимые контролы
   ============================================= */

/* Popup */
.leaflet-popup-content-wrapper {
  background: var(--m-bg-surface) !important;
  color: var(--m-text-primary) !important;
  border-radius: var(--m-radius-lg) !important;
  box-shadow: var(--m-shadow-lg) !important;
}

/* Zoom контролы */
.leaflet-control-zoom a {
  background: var(--m-bg-surface) !important;
  color: var(--m-text-primary) !important;
  border-color: var(--m-border) !important;
}

.leaflet-control-zoom a:hover {
  background: var(--m-bg-surface-alt) !important;
}

/* Переключатель слоёв */
.leaflet-control-layers {
  background: var(--m-bg-surface) !important;
  color: var(--m-text-primary) !important;
  border-color: var(--m-border) !important;
  box-shadow: var(--m-shadow-md) !important;
}

.leaflet-control-layers-toggle {
  background-color: var(--m-bg-surface) !important;
}

.leaflet-control-layers-expanded {
  background: var(--m-bg-surface) !important;
  color: var(--m-text-primary) !important;
}

.leaflet-control-layers-separator {
  border-top-color: var(--m-border) !important;
}

.leaflet-popup-tip {
  background: var(--m-bg-surface) !important;
}

.leaflet-popup-close-button {
  color: var(--m-text-muted) !important;
}

.leaflet-popup-close-button:hover {
  color: var(--m-text-primary) !important;
}

/* Стили для таблицы внутри popup */
.m-popup-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.5;
}

.m-popup-table td {
  padding: 2px 8px 2px 0;
  vertical-align: top;
  border: none;
  cursor: default;
}

.m-popup-table td:first-child {
  color: var(--m-text-muted);
  white-space: nowrap;
}

.m-popup-table td:last-child {
  font-weight: 500;
  color: var(--m-text-primary);
}

.m-popup-table tr:nth-child(even) {
  background: transparent;
}

.m-popup-table tr:hover {
  background: transparent;
}

/* =============================================
   Панель управления пользователями (admin)
   ============================================= */
.m-user-mgmt {
  background: var(--m-bg-elevated);
  border: 1px solid var(--m-border);
  border-radius: var(--m-radius-md);
  padding: 10px;
  margin-top: 8px;
  font-size: 0.85em;
}

.m-user-mgmt-title {
  font-size: 0.75em;
  text-transform: uppercase;
  color: var(--m-text-muted);
  font-weight: bold;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.m-user-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border-radius: var(--m-radius-sm);
  color: var(--m-text-primary);
  font-size: 0.9em;
}

.m-user-row:hover {
  background: var(--m-bg-surface);
}

.m-user-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.m-user-role {
  font-size: 0.75em;
  color: var(--m-text-muted);
  text-transform: uppercase;
  min-width: 40px;
  text-align: right;
}

.m-user-delete {
  background: none;
  border: none;
  color: var(--m-danger);
  cursor: pointer;
  font-size: 1em;
  padding: 2px 4px;
  border-radius: var(--m-radius-sm);
  line-height: 1;
}

.m-user-delete:hover {
  background: rgba(239, 68, 68, 0.15);
}

.m-user-add-row {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}

.m-user-add-input {
  flex: 1;
  padding: 5px 8px;
  border-radius: var(--m-radius-sm);
  border: 1px solid var(--m-border-strong);
  background: var(--m-bg-surface);
  color: var(--m-text-primary);
  font-size: 0.9em;
}

.m-user-add-input::placeholder {
  color: var(--m-text-dim);
}

.m-user-add-btn {
  background: var(--m-accent);
  color: white;
  border: none;
  border-radius: var(--m-radius-sm);
  padding: 5px 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.9em;
}

.m-user-add-btn:hover {
  background: var(--m-accent-hover);
}