/**
 * SecureFlow Insurance Brokerage System
 * Theme Configuration & Color Management
 *
 */

:root {
    /* ==================== Primary Brand Colors ==================== */
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-200: #bfdbfe;
    --color-primary-300: #93c5fd;
    --color-primary-400: #60a5fa;
    --color-primary-500: #3b82f6;
    --color-primary-600: #2563eb;
    --color-primary-700: #1d4ed8;
    --color-primary-800: #1e40af;
    --color-primary-900: #1e3a8a;
    --color-primary-950: #172554;

    /* ==================== Secondary/Accent Colors ==================== */
    --color-accent-50: #f5f3ff;
    --color-accent-100: #ede9fe;
    --color-accent-200: #ddd6fe;
    --color-accent-300: #c4b5fd;
    --color-accent-400: #a78bfa;
    --color-accent-500: #8b5cf6;
    --color-accent-600: #7c3aed;
    --color-accent-700: #6d28d9;
    --color-accent-800: #5b21b6;
    --color-accent-900: #4c1d95;

    /* ==================== Success Colors ==================== */
    --color-success-50: #f0fdf4;
    --color-success-100: #dcfce7;
    --color-success-200: #bbf7d0;
    --color-success-300: #86efac;
    --color-success-400: #4ade80;
    --color-success-500: #22c55e;
    --color-success-600: #16a34a;
    --color-success-700: #15803d;
    --color-success-800: #166534;
    --color-success-900: #14532d;

    /* ==================== Warning Colors ==================== */
    --color-warning-50: #fffbeb;
    --color-warning-100: #fef3c7;
    --color-warning-200: #fde68a;
    --color-warning-300: #fcd34d;
    --color-warning-400: #fbbf24;
    --color-warning-500: #f59e0b;
    --color-warning-600: #d97706;
    --color-warning-700: #b45309;
    --color-warning-800: #92400e;
    --color-warning-900: #78350f;

    /* ==================== Error/Danger Colors ==================== */
    --color-error-50: #fef2f2;
    --color-error-100: #fee2e2;
    --color-error-200: #fecaca;
    --color-error-300: #fca5a5;
    --color-error-400: #f87171;
    --color-error-500: #ef4444;
    --color-error-600: #dc2626;
    --color-error-700: #b91c1c;
    --color-error-800: #991b1b;
    --color-error-900: #7f1d1d;

    /* ==================== Info Colors ==================== */
    --color-info-50: #eff6ff;
    --color-info-100: #dbeafe;
    --color-info-200: #bfdbfe;
    --color-info-300: #93c5fd;
    --color-info-400: #60a5fa;
    --color-info-500: #3b82f6;
    --color-info-600: #2563eb;
    --color-info-700: #1d4ed8;
    --color-info-800: #1e40af;
    --color-info-900: #1e3a8a;

    /* ==================== Neutral/Gray Colors ==================== */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-gray-950: #030712;

    /* ==================== Semantic Colors ==================== */
    --color-background: #ffffff;
    --color-background-secondary: var(--color-gray-50);
    --color-background-tertiary: var(--color-gray-100);

    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-surface-overlay: rgba(0, 0, 0, 0.5);

    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-tertiary: var(--color-gray-500);
    --color-text-disabled: var(--color-gray-400);
    --color-text-inverse: #ffffff;

    --color-border: var(--color-gray-200);
    --color-border-hover: var(--color-gray-300);
    --color-border-focus: var(--color-primary-500);

    --color-divider: var(--color-gray-200);

    /* ==================== Sidebar Colors ==================== */
    --color-sidebar-bg-start: var(--color-primary-600);
    --color-sidebar-bg-end: var(--color-primary-800);
    --color-sidebar-text: var(--color-primary-100);
    --color-sidebar-text-active: #ffffff;
    --color-sidebar-item-hover: var(--color-primary-700);
    --color-sidebar-item-active: var(--color-primary-700);
    --color-sidebar-section-label: var(--color-primary-200);

    /* ==================== Header/Topnav Colors ==================== */
    --color-header-bg: #ffffff;
    --color-header-border: var(--color-gray-200);
    --color-header-text: var(--color-gray-900);
    --color-header-icon: var(--color-gray-400);
    --color-header-icon-hover: var(--color-gray-500);

    /* ==================== Spacing System ==================== */
    --spacing-xs: 0.25rem;      /* 4px */
    --spacing-sm: 0.5rem;       /* 8px */
    --spacing-md: 1rem;         /* 16px */
    --spacing-lg: 1.5rem;       /* 24px */
    --spacing-xl: 2rem;         /* 32px */
    --spacing-2xl: 3rem;        /* 48px */
    --spacing-3xl: 4rem;        /* 64px */

    /* ==================== Border Radius ==================== */
    --radius-sm: 0.25rem;       /* 4px */
    --radius-md: 0.375rem;      /* 6px */
    --radius-lg: 0.5rem;        /* 8px */
    --radius-xl: 0.75rem;       /* 12px */
    --radius-2xl: 1rem;         /* 16px */
    --radius-full: 9999px;

    /* ==================== Shadows ==================== */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* ==================== Typography ==================== */
    --font-family-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;

    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */
    --font-size-4xl: 2.25rem;   /* 36px */

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* ==================== Z-Index System ==================== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* ==================== Transitions ==================== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ==================== Breakpoints (for reference in JS) ==================== */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* ==================== Layout Dimensions ==================== */
    --sidebar-width: 18rem;     /* 288px */
    --header-height: 4rem;      /* 64px */
    --mobile-header-height: 3.5rem;  /* 56px */
}

/* ==================== Dark Mode Support (Optional) ==================== */
@media (prefers-color-scheme: dark) {
    :root {
        --color-background: var(--color-gray-900);
        --color-background-secondary: var(--color-gray-800);
        --color-background-tertiary: var(--color-gray-700);

        --color-surface: var(--color-gray-800);
        --color-surface-elevated: var(--color-gray-700);
        --color-surface-overlay: rgba(0, 0, 0, 0.7);

        --color-text-primary: var(--color-gray-50);
        --color-text-secondary: var(--color-gray-300);
        --color-text-tertiary: var(--color-gray-400);
        --color-text-disabled: var(--color-gray-500);

        --color-border: var(--color-gray-700);
        --color-border-hover: var(--color-gray-600);

        --color-divider: var(--color-gray-700);

        --color-header-bg: var(--color-gray-800);
        --color-header-border: var(--color-gray-700);
        --color-header-text: var(--color-gray-50);
        --color-header-icon: var(--color-gray-400);
        --color-header-icon-hover: var(--color-gray-300);
    }
}

/* ==================== Utility Classes ==================== */
.bg-primary { background-color: var(--color-primary-500); }
.bg-primary-hover:hover { background-color: var(--color-primary-600); }
.text-primary { color: var(--color-primary-500); }

.bg-success { background-color: var(--color-success-500); }
.text-success { color: var(--color-success-600); }

.bg-warning { background-color: var(--color-warning-500); }
.text-warning { color: var(--color-warning-600); }

.bg-error { background-color: var(--color-error-500); }
.text-error { color: var(--color-error-600); }

.bg-info { background-color: var(--color-info-500); }
.text-info { color: var(--color-info-600); }

/* ==================== Component-Specific Colors ==================== */
.btn-primary {
    background-color: var(--color-primary-600);
    color: var(--color-text-inverse);
}

.btn-primary:hover {
    background-color: var(--color-primary-700);
}

.btn-secondary {
    background-color: var(--color-gray-200);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background-color: var(--color-gray-300);
}

.input-field {
    border-color: var(--color-border);
    background-color: var(--color-background);
}

.input-field:hover {
    border-color: var(--color-border-hover);
}

.input-field:focus {
    border-color: var(--color-border-focus);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-error {
    border-color: var(--color-error-500);
}

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

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