/* 
   Sylvestri Systems Branding Board Styles
   Version 3.0
*/

:root {
    /* Primary Palette */
    --base-dark: #0B1220;
    --system-blue: #2563EB;
    --slate: #475569;
    --white: #FFFFFF;
    
    /* Secondary Palette */
    --signal-green: #16A34A;
    --warning-amber: #D97706;
    --error-red: #DC2626;
    
    /* UI Colors */
    --bg-color: var(--base-dark);
    --text-primary: var(--white);
    --text-secondary: #94A3B8; /* Lighter slate for better contrast on dark */
    --card-bg: #111b2e; /* Slightly lighter than base for cards */
    --border-color: #1E293B;
    
    /* Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Typography */
    --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; font-weight: 600; }
a { color: var(--system-blue); text-decoration: none; transition: 0.2s; }
a:hover { color: #60A5FA; }

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navbar */
.navbar {
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    background: rgba(11, 18, 32, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-logo {
    height: 40px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    letter-spacing: 0.05em;
    font-size: 0.9rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-links a:hover {
    color: var(--white);
}

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--border-color);
    background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.1), transparent 40%);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--border-color);
    border-radius: 99px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.lead {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 600px;
    margin-top: var(--spacing-sm);
}

.hero-stats {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: inline-flex;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat .label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

/* Sections */
.section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.section-line {
    flex-grow: 1;
    height: 1px;
    background: var(--border-color);
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: 8px;
}

/* Thesis */
.thesis-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-lg);
}

.thesis-text {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
}

.values-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.value-item .icon {
    font-family: var(--font-mono);
    color: var(--system-blue);
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
    display: block;
}

.value-item h3 {
    font-size: 1.1rem;
    margin: 0;
}

/* Colors */
.palette-group {
    margin-bottom: var(--spacing-lg);
}

.palette-group h3 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.color-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s;
}

.color-card:hover {
    transform: translateY(-4px);
    border-color: var(--system-blue);
}

.swatch {
    height: 120px;
    width: 100%;
}

.color-info {
    padding: var(--spacing-sm);
}

.color-info span {
    display: block;
}

.color-info .name { font-weight: 600; margin-bottom: 4px; }
.color-info .hex { font-family: var(--font-mono); color: var(--text-secondary); font-size: 0.85rem; }
.color-info .usage { font-size: 0.8rem; color: var(--text-secondary); margin-top: 8px; }

/* Typography */
.type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.type-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: 8px;
}

.type-header {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.font-name { font-weight: 700; font-size: 1.2rem; }
.font-usage { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-secondary); }

.type-preview .weight {
    margin-bottom: var(--spacing-md);
}

.type-preview .w-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.inter { font-family: 'Inter', sans-serif; }
.mono { font-family: 'JetBrains Mono', monospace; }

.tag-list {
    display: flex;
    gap: var(--spacing-sm);
    list-style: none;
    flex-wrap: wrap;
}

.tag-list li {
    background: rgba(255,255,255,0.05);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

/* Voice & Messaging */
.voice-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-md);
}

.trait-group {
    margin-bottom: var(--spacing-md);
}

.trait-group label {
    display: block;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.trait-group p {
    font-size: 1.1rem;
}

.trait-group.negative p {
    color: var(--text-secondary);
    text-decoration: line-through;
}

.check-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.check-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--system-blue);
    font-weight: bold;
}

.slogans {
    background: rgba(37, 99, 235, 0.1);
    padding: var(--spacing-md);
    border-radius: 4px;
    border-left: 3px solid var(--system-blue);
}

.slogan {
    font-weight: 600;
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 0.5rem;
}

.slogan:last-child { margin-bottom: 0; }

/* Secondary Persona */
.secondary-persona-section {
    border-left: 4px solid var(--slate);
    padding-left: var(--spacing-md);
    background: linear-gradient(to right, rgba(71, 85, 105, 0.05), transparent);
}

.persona-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.bullet-list {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.bullet-list li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.bullet-list strong {
    color: var(--white);
}

.claims-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.claims-col h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-sm);
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.claims-col.allowed h4 { color: var(--signal-green); border-color: var(--signal-green); }
.claims-col.disallowed h4 { color: var(--error-red); border-color: var(--error-red); }

.claims-col ul {
    list-style: none;
    font-size: 0.9rem;
}

.claims-col ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1rem;
}

.claims-col.allowed ul li::before { content: "•"; color: var(--signal-green); position: absolute; left: 0; }
.claims-col.disallowed ul li::before { content: "•"; color: var(--error-red); position: absolute; left: 0; }

/* Footer */
footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-left p {
    color: var(--text-secondary);
}

.footer-col h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.footer-col a {
    display: block;
    margin-bottom: 0.5rem;
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: var(--spacing-md);
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    
    .thesis-grid, 
    .values-list,
    .type-grid,
    .voice-grid,
    .persona-grid,
    .claims-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}