/* =============================================================================
   SLEDDER.AI — Stylesheet
   Designer: [your name here]
   Last updated: 2026-05-16
   ============================================================================= */

/* --- PALETTE (CSS Custom Properties) --- */
:root {
    /* Background tones */
    --color-bg-primary: #0a0f1a;
    --color-bg-secondary: #111827;
    --color-bg-tertiary: #1f2937;
    
    /* Accent (cyan/teal) */
    --color-accent-500: #06b6d4;
    --color-accent-400: #22d3ee;
    --color-accent-300: #67e8f9;
    
    /* Danger/decline (red-orange) */
    --color-danger-500: #e63946;
    --color-danger-400: #f4a261;
    
    /* Safe/growth (teal-green) */
    --color-safe-500: #2a9d8f;
    
    /* Text */
    --color-text-primary: #f3f4f6;
    --color-text-secondary: #9ca3af;
    --color-text-muted: #6b7280;
    
    /* Borders */
    --color-border: #374151;
    --color-border-light: #4b5563;
    
    /* Spacing scale */
    --space-section: 5rem;
    --space-content: 2rem;
    
    /* Border radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
}

/* --- TYPOGRAPHY --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
}

.mono {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* --- EFFECTS --- */
.glow {
    text-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.card-hover {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(6, 182, 212, 0.1);
}

/* --- LOGO PLACEHOLDER --- */
/* Designer: Replace with actual logo asset */
.site-logo {
    width: 48px;
    height: 48px;
    /* background-image: url('logo.svg'); */
    /* background-size: contain; */
    /* background-repeat: no-repeat; */
}

/* --- SECTION STYLES --- */
.section-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-section) 1.5rem;
}

.section-alt {
    background-color: var(--color-bg-secondary);
}

/* --- INDEX NUMBER (hero) --- */
.index-display {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    display: inline-block;
}

.index-number {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 800;
    color: var(--color-accent-400);
    line-height: 1;
}

/* --- CATEGORY CARDS --- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.category-value {
    font-size: 3rem;
    font-weight: 800;
}

.category-value.declining { color: var(--color-danger-400); }
.category-value.stable { color: var(--color-safe-500); }
.category-value.growing { color: var(--color-accent-400); }

/* --- CALLOUT BOX (supply wave, etc.) --- */
.callout-danger {
    background-color: var(--color-bg-secondary);
    border-left: 4px solid var(--color-danger-500);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 1.5rem;
    margin-top: var(--space-content);
}

/* --- ENTITY RESOLUTION (code-like display) --- */
.code-block {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 2rem;
    overflow-x: auto;
}

.code-block .highlight { color: var(--color-accent-400); }
.code-block .warning { color: var(--color-danger-400); }

/* --- TIMELINE (Brightly case study) --- */
.timeline-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.5rem 0;
}

.timeline-year {
    width: 6rem;
    flex-shrink: 0;
    color: var(--color-accent-400);
    font-weight: 500;
}

/* --- CTA SECTION --- */
.cta-button {
    display: inline-block;
    background-color: var(--color-accent-500);
    color: var(--color-bg-primary);
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background-color: var(--color-accent-400);
}

/* --- FOOTER --- */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 2rem 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .category-grid {
        grid-template-columns: 1fr;
    }
    .index-number {
        font-size: 4rem;
    }
}