/**
 * Base Styles - Variables, Reset, Typography
 */

:root {
    /* Colors - Light Theme (default) */
    --color-bg-primary: #f5f5f7;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f0f0f2;
    --color-bg-hover: #FBFBFB;

    --color-text-primary: #1a1a2e;
    --color-text-secondary: #6b7280;
    --color-text-tertiary: #4b5563;
    --color-text-muted: #9ca3af;

    --color-accent: #ff6b6b;
    --color-accent-light: #ff8a8a;
    --color-accent-dark: #e55555;
    --color-accent-bg: rgba(255, 107, 107, 0.12);

    --color-success: #10b981;
    --color-success-bg: rgba(16, 185, 129, 0.12);
    --color-success-dark: #059669;
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.12);
    --color-yellow: #eab308;
    --color-yellow-bg: rgba(234, 179, 8, 0.12);
    --color-danger: #ef4444;
    --color-danger-bg: rgba(239, 68, 68, 0.12);
    --color-error: #ef4444;
    --color-info: #3b82f6;
    --color-info-bg: rgba(59, 130, 246, 0.12);

    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-input-bg: #ffffff;

    /* Type-specific colors */
    --color-password: #ff6b6b;
    --color-totp: #10b981;
    --color-note: #f59e0b;
    --color-file: #3b82f6;
    --color-website: #8b5cf6;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

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

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sidebar: 40;
    --z-header: 50;
    --z-footer: 50;
    --z-modal-backdrop: 200;
    --z-modal: 300;
    --z-popup: 500;
    --z-toast: 600;

    /* Layout */
    --header-height: 60px;
    --footer-height: 70px;
    --sidebar-width: 280px;
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

/* Dark Theme - Pure blacks and greys */
[data-theme="dark"] {
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #141414;
    --color-bg-tertiary: #1f1f1f;
    --color-bg-hover: #2a2a2a;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-tertiary: #c0c0c0;
    --color-text-muted: #666666;
    --color-border: #2a2a2a;
    --color-border-light: #333333;
    --color-input-bg: #1a1a1a;
}

/* Midnight Theme - Blue-tinted dark */
[data-theme="midnight"] {
    --color-bg-primary: #0f0f1a;
    --color-bg-secondary: #1a1a2e;
    --color-bg-tertiary: #252542;
    --color-bg-hover: #2a2a48;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-tertiary: #c0c0d0;
    --color-text-muted: #6b6b80;
    --color-border: #2a2a4a;
    --color-border-light: #333355;
    --color-input-bg: #1a1a30;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
    text-decoration: none;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-full);
}

/* Utility Classes */
.hidden { display: none !important; }