:root {
    /* Color System */
    --color-surface: #F1F5F9;
    --color-card-base: #E6EDF5;
    
    --color-primary-start: #0F2A5F;
    --color-primary-end: #1E3A8A;
    
    --color-accent-blue: #3B82F6;
    --color-light-blue: #60A5FA;
    --color-highlight-yellow: #FBBF24;
    --color-soft-green: #34D399;
    
    --color-text-main: #0F172A;
    --color-text-muted: #475569;
    --color-text-light: #FFFFFF;

    /* Spacing System (8px scale) */
    --spacing-1: 8px;
    --spacing-2: 16px;
    --spacing-3: 24px;
    --spacing-4: 32px;
    --spacing-6: 48px;
    --spacing-8: 64px;
    --spacing-10: 80px;
    --spacing-12: 96px;

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* Shadow Rules */
    /* Neumorphism: inset light + outer dark */
    --shadow-neumorphic-base: 8px 8px 16px #d1d9e6, -8px -8px 16px #ffffff;
    --shadow-neumorphic-hover: 12px 12px 24px #d1d9e6, -12px -12px 24px #ffffff;
    --shadow-neumorphic-inset: inset 6px 6px 12px #d1d9e6, inset -6px -6px 12px #ffffff;
    
    /* Clay: soft blurred shadow + glow */
    --shadow-clay-base: 8px 8px 16px rgba(0,0,0,0.1), inset -4px -4px 8px rgba(0,0,0,0.1), inset 4px 4px 8px rgba(255,255,255,0.8);
    --shadow-clay-hover: 12px 12px 24px rgba(0,0,0,0.15), inset -4px -4px 8px rgba(0,0,0,0.1), inset 6px 6px 12px rgba(255,255,255,0.9);
    --shadow-clay-active: 4px 4px 8px rgba(0,0,0,0.1), inset -2px -2px 4px rgba(0,0,0,0.1), inset 2px 2px 4px rgba(255,255,255,0.8);

    /* Typography */
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Manrope', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text-main);
    background-color: var(--color-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary-start);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }

p {
    margin-bottom: var(--spacing-3);
    color: var(--color-text-muted);
}

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

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