/* FIXED CSS pre handbook.rochallyi.com */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fafafa;
}

/* HEADER - FIXED */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

h1 a {
    font-size: 1.4rem;
    text-decoration: none;
    color: #1a1a1a;
    font-weight: 700;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    font-size: 0.95rem;
}

nav a:hover { color: #000; }

/* HERO */
.hero {
    text-align: center;
    padding: 3rem 1.5rem;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.hero h2 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.hero p {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 1rem;
}

/* CTA BUTTONS */
.cta-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    padding: 0.9rem 1.8rem;
    background: white;
    border: 2px solid #ddd;
    text-decoration: none;
    color: #333;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s;
    white-space: nowrap;
    flex: 1;
    min-width: 180px;
    text-align: center;
}

.cta-button:hover {
    border-color: #000;
    transform: translateY(-1px);
}

.cta-button.primary {
    background: #1a1a1a;
    color: white;
    border-color: #1a1a1a;
}

.cta-button.primary:hover {
    background: white;
    color: #1a1a1a;
}

/* OVERVIEW */
.overview {
    padding: 3rem 1.5rem;
    background: white;
    text-align: center;
}

.overview h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.overview ul {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
}

.overview li {
    padding: 1.5rem;
    background: #f8f9fa;
    border-left: 4px solid #1a1a1a;
    margin-bottom: 1rem;
    text-align: left;
}

/* FORMS GRID - FIXED */
.forms-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 3rem 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.form-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-left: 6px solid #1a1a1a;
}

.form-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.generator-link {
    margin-top: 1.5rem;
}

/* RESPONSIVE */
@media (min-width: 768px) {
    .forms-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 2rem;
    }
    
    nav {
        padding: 1rem 2rem;
    }
    
    h1 a {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    nav ul {
        gap: 1rem;
        justify-content: center;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .cta-grid {
        flex-direction: column;
    }
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    background: #1a1a1a;
    color: white;
    margin-top: 3rem;
}

footer a { color: #ccc; text-decoration: none; }



/* Generator specific */
.generator-section {
    padding: 3rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.generator-form {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.generator-form h3 {
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.generator-form label {
    display: block;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.generator-form input,
.generator-form select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #eee;
    border-radius: 6px;
    font-size: 1rem;
    margin-top: 0.3rem;
}

.generator-form input[type="range"] {
    width: 200px;
}

.generator-output {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.05);
}

.generator-output h3 {
    margin-bottom: 1.5rem;
}

.generator-output pre {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    font-family: monospace;
    white-space: pre-wrap;
    border-left: 4px solid #1a1a1a;
}

.theory {
    padding: 3rem 1.5rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .generator-section {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.katex-display {
    margin: 1.5rem 0;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #1a1a1a;
}

canvas {
    border: 1px solid #ddd;
    border-radius: 8px;
    display: block;
    margin: 1rem auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}