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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0C1F2C;
    color: #E8ECF0;
    line-height: 1.6;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.header {
    text-align: center;
    margin-bottom: 4rem;
}

.badge {
    display: inline-block;
    background: rgba(0, 166, 82, 0.15);
    color: #00A652;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 166, 82, 0.3);
}

.header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.header p {
    font-size: 0.95rem;
    color: #7A8B9A;
}

.section {
    margin-bottom: 4rem;
}

.section h2 {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: #00A652;
}

/* Color Grid */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.color-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    overflow: hidden;
}

.color-swatch {
    height: 80px;
}

.swatch-primary { background: #00A652; }
.swatch-dark-green { background: #006838; }
.swatch-navy { background: #0C1F2C; border-bottom: 1px solid rgba(255,255,255,0.1); }
.swatch-accent { background: #2BB5E0; }
.swatch-light { background: #F7F9FC; }
.swatch-text { background: #1A2B3D; }
.swatch-alert { background: #E74C3C; }
.swatch-success { background: #27AE60; }

.color-info {
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.color-info strong {
    font-size: 0.85rem;
}

.color-info code {
    font-size: 0.8rem;
    color: #2BB5E0;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.color-info span {
    font-size: 0.75rem;
    color: #7A8B9A;
}

/* Typography Grid */
.typo-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.typo-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 1.5rem;
}

.typo-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #00A652;
    display: block;
    margin-bottom: 0.75rem;
}

.typo-sample {
    font-size: 0.85rem;
    color: #7A8B9A;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

.typo-h1-demo {
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.typo-h2-demo {
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.typo-body-demo {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.typo-notes-demo {
    font-size: 0.85rem;
    font-style: italic;
    color: #7A8B9A;
    margin-bottom: 0.5rem;
}

.typo-spec {
    font-size: 0.75rem;
    color: #2BB5E0;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Principles */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.principle-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.principle-icon {
    margin-bottom: 1rem;
}

.principle-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.principle-card p {
    font-size: 0.8rem;
    color: #7A8B9A;
    line-height: 1.5;
}

/* Components */
.components-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.component-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 0.75rem 1.25rem;
}

.component-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.component-usage {
    font-size: 0.75rem;
    color: #7A8B9A;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Shortcuts */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

kbd {
    display: inline-block;
    background: rgba(0, 166, 82, 0.15);
    color: #00A652;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-weight: 600;
    min-width: 40px;
    text-align: center;
    border: 1px solid rgba(0, 166, 82, 0.2);
}

.shortcut-item span {
    font-size: 0.8rem;
    color: #7A8B9A;
}

/* Footer */
.footer {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 3rem;
}

.footer p {
    font-size: 0.75rem;
    color: #52525b;
    margin-bottom: 0.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    .header h1 {
        font-size: 1.6rem;
    }

    .color-grid,
    .principles-grid,
    .shortcuts-grid {
        grid-template-columns: 1fr;
    }

    .component-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}