:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: rgba(37, 99, 235, 0.12);
    --color-secondary: #0f172a;
    --color-secondary-light: #1e293b;
    --color-accent: #f59e0b;
    --color-accent-light: rgba(245, 158, 11, 0.1);
    
    --color-text: #1f2937;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    --color-text-inverse: #f9fafb;
    
    --color-bg-body: #fafbfc;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #f8fafc;
    --color-bg-input: #f9fafb;
    --color-bg-dark: #0f172a;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    --color-border-focus: #2563eb;
    
    --color-success: #059669;
    --color-success-light: rgba(5, 150, 105, 0.1);
    --color-warning: #d97706;
    --color-warning-light: rgba(217, 119, 6, 0.1);
    --color-danger: #dc2626;
    --color-danger-light: rgba(220, 38, 38, 0.1);
    --color-info: #2563eb;
    --color-info-light: rgba(37, 99, 235, 0.1);
    
    /* Border radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-sans: 'Manrope', system-ui, -apple-system, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --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;
    --space-16: 64px;
    
    /* Transitions */
    --transition: all 0.2s ease;
    --transition-fast: 0.15s ease;
    --transition-slow: 0.3s ease;
    
    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
    
    /* Breakpoints - Desktop First */
    --bp-mobile: 480px;
    --bp-tablet: 768px;
    --bp-laptop: 1024px;
    --bp-desktop: 1280px;
    --bp-wide: 1440px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-body);
    min-height: 100vh;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Utility classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}