:root {
    --text-xs: 14px;
    --text-sm: 16px;
    --text-base: 18px;
    --text-lg: 24px;
    --text-xl: 30px;
    --text-2xl: 37px;
    --text-3xl: 46px;
    
    --font-light: 300;
    --font-normal: 400;
    --font-semibold: 600;
    
    --leading-tight: 1.2;
    --leading-normal: 1.5;
    
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-16: 64px;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    
    --secondary-100: #cffafe;
    --secondary-300: #67e8f9;
    --secondary-400: #22d3ee;
    --secondary-500: #06b6d4;
    
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-900: #0f172a;
    --gray-950: #020617;
    
    --bg-primary: #030811;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --border-subtle: rgba(148, 163, 184, 0.1);
}

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

html, body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: radial-gradient(ellipse at 50% 0%, #0c1222 0%, #030811 50%, #010408 100%);
}

#shooting-stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.content {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    animation: fadeIn 1s ease-out;
    min-height: calc(100vh - 80px);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.logo {
    margin-bottom: var(--space-8);
}

.logo svg {
    width: 120px;
    height: 120px;
    filter: drop-shadow(0 0 30px rgba(129, 140, 248, 0.3));
}

.title {
    font-size: clamp(var(--text-xl), 5vw, var(--text-3xl));
    font-weight: var(--font-semibold);
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    text-align: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--secondary-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-4);
}

.subtitle {
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-secondary);
    text-align: center;
    letter-spacing: 0.02em;
}

.footer {
    position: relative;
    z-index: 2;
    padding: var(--space-6);
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: flex;
    justify-content: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.brand-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--primary-300) 0%, var(--secondary-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-year {
    font-size: var(--text-sm);
    font-weight: var(--font-normal);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    :root {
        --text-base: 16px;
        --text-xl: 26px;
        --text-3xl: 36px;
    }
    
    .content {
        padding: var(--space-6);
    }
    
    .logo svg {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    :root {
        --text-base: 15px;
        --text-xl: 22px;
        --text-3xl: 30px;
        --space-8: 24px;
    }
    
    .content {
        padding: var(--space-6) var(--space-4);
    }
    
    .logo svg {
        width: 80px;
        height: 80px;
    }
    
    .title {
        margin-bottom: var(--space-3);
    }
    
    .subtitle {
        margin-bottom: var(--space-6);
    }
    
    .footer {
        padding: var(--space-4);
    }
}

@media (max-width: 360px) {
    :root {
        --text-xl: 20px;
        --text-3xl: 26px;
    }
    
    .logo svg {
        width: 70px;
        height: 70px;
    }
}