:root {
    --primary-gradient: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    --secondary-gradient: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
    --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --neutral-bg: #fefefe;
    --card-bg: #ffffff;
    --subtle-bg: #f8fafc;
    --border-light: #f1f5f9;
    --border-subtle: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --accent-purple: #8b5cf6;
    --accent-cyan: #06b6d4;
    --accent-amber: #f59e0b;
    --shadow-subtle: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --z-header: 1000;
    --z-mobile-nav: 999;
    --z-floating: 10;
    --z-overlay: 50;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --accent-line-width: 80px;
    --accent-line-height: 4px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--neutral-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.7;
    margin: 0;
    padding: 0;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.divider {
    border: none;
    height: 1px;
    background: var(--border-subtle);
    margin: var(--spacing-2xl) 0;
}

a:focus-visible, button:focus-visible, .btn-base:focus-visible {
    outline: 3px solid var(--accent-cyan);
    outline-offset: 3px;
    border-radius: var(--border-radius-sm);
}

::selection {
    background: rgba(139, 92, 246, 0.15);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(139, 92, 246, 0.15);
    color: var(--text-primary);
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--subtle-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-subtle);
    border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mb-5 {
    margin-bottom: 40px;
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.mt-5 {
    margin-top: 40px;
}

.p-1 {
    padding: var(--spacing-sm);
}

.p-2 {
    padding: var(--spacing-md);
}

.p-3 {
    padding: var(--spacing-lg);
}

.p-4 {
    padding: var(--spacing-xl);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-bold {
    font-weight: 700;
}

.text-semi-bold {
    font-weight: 600;
}

.text-normal {
    font-weight: 400;
}

.btn-base {
    padding: 12px 20px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
    color: white;
    text-decoration: none;
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-secondary);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    color: var(--accent-purple);
    border-color: var(--accent-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    text-decoration: none;
}

.btn-lg {
    padding: 18px 48px;
    font-size: clamp(1rem, 3vw, 1.1rem);
    border-radius: var(--border-radius-lg);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    border-radius: var(--spacing-sm);
}