/* ═══════════════════════════════════════════════════════════════
   CasteX Theme — CSS Variables
   Altere as cores aqui para customizar todo o sistema.
   Toggle dark mode via: document.documentElement.setAttribute('data-theme', 'dark')
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Cores primárias */
  --casx-primary: #3b82f6;
  --casx-primary-hover: #2563eb;
  --casx-primary-light: #dbeafe;
  --casx-secondary: #6366f1;
  --casx-secondary-hover: #4f46e5;
  --casx-secondary-light: #e0e7ff;
  --casx-accent: #10b981;
  --casx-accent-hover: #059669;
  --casx-accent-light: #d1fae5;

  /* Superfícies */
  --casx-bg: #ffffff;
  --casx-bg-secondary: #f9fafb;
  --casx-bg-tertiary: #f3f4f6;
  --casx-surface: #ffffff;
  --casx-surface-hover: #f9fafb;
  --casx-border: #e5e7eb;
  --casx-border-light: #f3f4f6;

  /* Texto */
  --casx-text: #111827;
  --casx-text-secondary: #6b7280;
  --casx-text-muted: #9ca3af;
  --casx-text-inverse: #ffffff;

  /* Status */
  --casx-success: #10b981;
  --casx-success-light: #d1fae5;
  --casx-warning: #f59e0b;
  --casx-warning-light: #fef3c7;
  --casx-danger: #ef4444;
  --casx-danger-light: #fee2e2;
  --casx-info: #3b82f6;
  --casx-info-light: #dbeafe;

  /* Sidebar / Header */
  --casx-header-bg: #2F2F2F;
  --casx-header-text: #ffffff;
  --casx-sidebar-bg: #333333;
  --casx-sidebar-text: #ffffff;
  --casx-sidebar-hover: #454545;

  /* Raios e sombras */
  --casx-radius-sm: 0.5rem;
  --casx-radius: 0.75rem;
  --casx-radius-lg: 1rem;
  --casx-radius-xl: 1.5rem;
  --casx-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --casx-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --casx-shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
  --casx-shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);

  /* Input */
  --casx-input-bg: #ffffff;
  --casx-input-border: #d1d5db;
  --casx-input-focus: #3b82f6;
  --casx-input-text: #111827;
  --casx-input-placeholder: #9ca3af;
}

/* ═══ Dark Mode ═══ */
[data-theme="dark"] {
  --casx-primary: #60a5fa;
  --casx-primary-hover: #3b82f6;
  --casx-primary-light: #1e3a5f;
  --casx-secondary: #818cf8;
  --casx-secondary-hover: #6366f1;
  --casx-secondary-light: #312e81;
  --casx-accent: #34d399;
  --casx-accent-hover: #10b981;
  --casx-accent-light: #064e3b;

  --casx-bg: #0f172a;
  --casx-bg-secondary: #1e293b;
  --casx-bg-tertiary: #334155;
  --casx-surface: #1e293b;
  --casx-surface-hover: #334155;
  --casx-border: #334155;
  --casx-border-light: #1e293b;

  --casx-text: #f1f5f9;
  --casx-text-secondary: #cbd5e1;
  --casx-text-muted: #64748b;
  --casx-text-inverse: #0f172a;

  --casx-success-light: #064e3b;
  --casx-warning-light: #78350f;
  --casx-danger-light: #7f1d1d;
  --casx-info-light: #1e3a5f;

  --casx-header-bg: #0f172a;
  --casx-header-text: #e2e8f0;
  --casx-sidebar-bg: #1e293b;
  --casx-sidebar-text: #e2e8f0;
  --casx-sidebar-hover: #334155;

  --casx-shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --casx-shadow: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);
  --casx-shadow-md: 0 4px 6px rgba(0,0,0,0.4), 0 2px 4px rgba(0,0,0,0.3);
  --casx-shadow-lg: 0 10px 15px rgba(0,0,0,0.4), 0 4px 6px rgba(0,0,0,0.3);

  --casx-input-bg: #1e293b;
  --casx-input-border: #475569;
  --casx-input-focus: #60a5fa;
  --casx-input-text: #f1f5f9;
  --casx-input-placeholder: #64748b;
}

/* ═══ Component Base Styles ═══ */

.casx-card {
  background: var(--casx-surface);
  border: 1px solid var(--casx-border);
  border-radius: var(--casx-radius);
  box-shadow: var(--casx-shadow-sm);
}

.casx-card:hover {
  box-shadow: var(--casx-shadow-md);
}

.casx-input {
  background: var(--casx-input-bg);
  border: 1px solid var(--casx-input-border);
  color: var(--casx-input-text);
  border-radius: var(--casx-radius-sm);
  padding: 0.5rem 0.75rem;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.casx-input::placeholder {
  color: var(--casx-input-placeholder);
}

.casx-input:focus {
  outline: none;
  border-color: var(--casx-input-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.casx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--casx-radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
}

.casx-btn-primary {
  background: var(--casx-primary);
  color: var(--casx-text-inverse);
}
.casx-btn-primary:hover { background: var(--casx-primary-hover); }

.casx-btn-secondary {
  background: var(--casx-bg-tertiary);
  color: var(--casx-text);
  border: 1px solid var(--casx-border);
}
.casx-btn-secondary:hover { background: var(--casx-surface-hover); }

.casx-btn-danger {
  background: var(--casx-danger);
  color: var(--casx-text-inverse);
}
.casx-btn-danger:hover { opacity: 0.9; }

.casx-btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

/* Page background */
body, .casx-page {
  background: var(--casx-bg-secondary);
  color: var(--casx-text);
}

.casx-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--casx-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.375rem;
}