/* ============================================
   CSS Custom Properties - Clinical Blue Theme
   Light & Dark Mode Support
   ============================================ */

:root {
    /* ----------------------------------------
       Color Mode (default: light)
       ---------------------------------------- */
    color-scheme: light dark;

    /* ----------------------------------------
       Primary Blues - Clinical Palette
       ---------------------------------------- */
    --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;

    /* ----------------------------------------
       Neutral Grays
       ---------------------------------------- */
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    --color-gray-950: #020617;

    /* ----------------------------------------
       Typography Scale (Increased)
       ---------------------------------------- */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-md: 17px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 30px;
    --text-4xl: 36px;

    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

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

    /* ----------------------------------------
       Spacing Scale
       ---------------------------------------- */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* ----------------------------------------
       Border Radius
       ---------------------------------------- */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-full: 9999px;

    /* ----------------------------------------
       Transitions
       ---------------------------------------- */
    --transition-fast: 100ms ease;
    --transition-normal: 150ms ease;
    --transition-slow: 250ms ease;
    --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-theme: 200ms ease-in-out;

    /* ----------------------------------------
       Z-Index Scale
       ---------------------------------------- */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-toast: 800;

    /* ----------------------------------------
       Layout
       ---------------------------------------- */
    --header-height: 100px; /* 56px primary + 44px secondary */
    --sidebar-width: 300px;
    --content-max-width: 1400px;

    /* ----------------------------------------
       Fonts
       ---------------------------------------- */
    --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Geist Mono', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

/* ============================================
   LIGHT MODE (Default)
   ============================================ */
:root,
[data-theme="light"] {
    /* Backgrounds */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-bg-card: #ffffff;
    --color-bg-hover: var(--color-gray-100);
    --color-bg-active: var(--color-primary-50);
    --color-bg-code: var(--color-gray-900);

    /* Borders */
    --color-border: var(--color-gray-200);
    --color-border-light: var(--color-gray-100);
    --color-border-dark: var(--color-gray-300);
    --color-border-focus: var(--color-primary-500);

    /* Text */
    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-muted: var(--color-gray-400);
    --color-text-inverse: #ffffff;
    --color-text-link: var(--color-primary-600);
    --color-text-link-hover: var(--color-primary-700);
    --color-text-code: var(--color-gray-100);

    /* Accent */
    --color-accent: var(--color-primary-600);
    --color-accent-hover: var(--color-primary-700);
    --color-accent-light: var(--color-primary-50);
    --color-accent-muted: var(--color-primary-100);

    /* Status Colors */
    --color-success: #059669;
    --color-success-light: #10b981;
    --color-success-bg: #ecfdf5;
    --color-success-border: #a7f3d0;

    --color-error: #dc2626;
    --color-error-light: #ef4444;
    --color-error-bg: #fef2f2;
    --color-error-border: #fecaca;

    --color-warning: #d97706;
    --color-warning-light: #f59e0b;
    --color-warning-bg: #fffbeb;
    --color-warning-border: #fde68a;

    --color-info: var(--color-primary-600);
    --color-info-light: var(--color-primary-500);
    --color-info-bg: var(--color-primary-50);
    --color-info-border: var(--color-primary-200);

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --shadow-focus: 0 0 0 3px var(--color-primary-100);

    /* Scrollbar */
    --scrollbar-track: var(--color-gray-100);
    --scrollbar-thumb: var(--color-gray-300);
    --scrollbar-thumb-hover: var(--color-gray-400);
}

/* ============================================
   DARK MODE
   ============================================ */
[data-theme="dark"] {
    /* Backgrounds */
    --color-bg-primary: var(--color-gray-900);
    --color-bg-secondary: var(--color-gray-950);
    --color-bg-tertiary: var(--color-gray-800);
    --color-bg-card: var(--color-gray-900);
    --color-bg-hover: var(--color-gray-800);
    --color-bg-active: rgba(59, 130, 246, 0.15);
    --color-bg-code: var(--color-gray-950);

    /* Borders */
    --color-border: var(--color-gray-700);
    --color-border-light: var(--color-gray-800);
    --color-border-dark: var(--color-gray-600);
    --color-border-focus: var(--color-primary-400);

    /* Text */
    --color-text-primary: var(--color-gray-50);
    --color-text-secondary: var(--color-gray-300);
    --color-text-muted: var(--color-gray-500);
    --color-text-inverse: var(--color-gray-900);
    --color-text-link: var(--color-primary-400);
    --color-text-link-hover: var(--color-primary-300);
    --color-text-code: var(--color-gray-100);

    /* Accent */
    --color-accent: var(--color-primary-500);
    --color-accent-hover: var(--color-primary-400);
    --color-accent-light: rgba(59, 130, 246, 0.15);
    --color-accent-muted: rgba(59, 130, 246, 0.25);

    /* Status Colors - Dark variants */
    --color-success: #34d399;
    --color-success-light: #6ee7b7;
    --color-success-bg: rgba(16, 185, 129, 0.15);
    --color-success-border: rgba(16, 185, 129, 0.3);

    --color-error: #f87171;
    --color-error-light: #fca5a5;
    --color-error-bg: rgba(239, 68, 68, 0.15);
    --color-error-border: rgba(239, 68, 68, 0.3);

    --color-warning: #fbbf24;
    --color-warning-light: #fcd34d;
    --color-warning-bg: rgba(245, 158, 11, 0.15);
    --color-warning-border: rgba(245, 158, 11, 0.3);

    --color-info: var(--color-primary-400);
    --color-info-light: var(--color-primary-300);
    --color-info-bg: rgba(59, 130, 246, 0.15);
    --color-info-border: rgba(59, 130, 246, 0.3);

    /* Shadows - Darker for dark mode */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.5);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.3);
    --shadow-focus: 0 0 0 3px rgba(59, 130, 246, 0.3);

    /* Scrollbar */
    --scrollbar-track: var(--color-gray-800);
    --scrollbar-thumb: var(--color-gray-600);
    --scrollbar-thumb-hover: var(--color-gray-500);
}

/* ============================================
   System Preference Support (Auto)
   ============================================ */
@media (prefers-color-scheme: dark) {
    [data-theme="auto"] {
        /* Backgrounds */
        --color-bg-primary: var(--color-gray-900);
        --color-bg-secondary: var(--color-gray-950);
        --color-bg-tertiary: var(--color-gray-800);
        --color-bg-card: var(--color-gray-900);
        --color-bg-hover: var(--color-gray-800);
        --color-bg-active: rgba(59, 130, 246, 0.15);
        --color-bg-code: var(--color-gray-950);

        /* Borders */
        --color-border: var(--color-gray-700);
        --color-border-light: var(--color-gray-800);
        --color-border-dark: var(--color-gray-600);
        --color-border-focus: var(--color-primary-400);

        /* Text */
        --color-text-primary: var(--color-gray-50);
        --color-text-secondary: var(--color-gray-300);
        --color-text-muted: var(--color-gray-500);
        --color-text-inverse: var(--color-gray-900);
        --color-text-link: var(--color-primary-400);
        --color-text-link-hover: var(--color-primary-300);
        --color-text-code: var(--color-gray-100);

        /* Accent */
        --color-accent: var(--color-primary-500);
        --color-accent-hover: var(--color-primary-400);
        --color-accent-light: rgba(59, 130, 246, 0.15);
        --color-accent-muted: rgba(59, 130, 246, 0.25);

        /* Status Colors */
        --color-success: #34d399;
        --color-success-light: #6ee7b7;
        --color-success-bg: rgba(16, 185, 129, 0.15);
        --color-success-border: rgba(16, 185, 129, 0.3);

        --color-error: #f87171;
        --color-error-light: #fca5a5;
        --color-error-bg: rgba(239, 68, 68, 0.15);
        --color-error-border: rgba(239, 68, 68, 0.3);

        --color-warning: #fbbf24;
        --color-warning-light: #fcd34d;
        --color-warning-bg: rgba(245, 158, 11, 0.15);
        --color-warning-border: rgba(245, 158, 11, 0.3);

        --color-info: var(--color-primary-400);
        --color-info-light: var(--color-primary-300);
        --color-info-bg: rgba(59, 130, 246, 0.15);
        --color-info-border: rgba(59, 130, 246, 0.3);

        /* Shadows */
        --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.3);
        --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
        --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
        --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
        --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.5);
        --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.3);
        --shadow-focus: 0 0 0 3px rgba(59, 130, 246, 0.3);

        /* Scrollbar */
        --scrollbar-track: var(--color-gray-800);
        --scrollbar-thumb: var(--color-gray-600);
        --scrollbar-thumb-hover: var(--color-gray-500);
    }
}