/* ============================================
   recipeReader Static Site
   Clean, modern design with warm cooking vibes
   ============================================ */

:root {
    --primary: #E8590C;
    --primary-light: #FF6B2B;
    --primary-dark: #C2410C;
    --accent: #059669;
    --accent-light: #10B981;
    --bg: #FAFAF9;
    --bg-card: #FFFFFF;
    --bg-code: #F5F5F4;
    --text: #1C1917;
    --text-secondary: #78716C;
    --text-tertiary: #A8A29E;
    --border: #E7E5E4;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);
    --radius: 12px;
    --radius-sm: 8px;
    --max-width: 900px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1C1917;
        --bg-card: #292524;
        --bg-code: #1C1917;
        --text: #FAFAF9;
        --text-secondary: #A8A29E;
        --text-tertiary: #78716C;
        --border: #44403C;
        --shadow: 0 1px 3px rgba(0,0,0,0.3);
        --shadow-lg: 0 10px 25px rgba(0,0,0,0.4);
    }
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
}

/* Navigation */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 250, 249, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

@media (prefers-color-scheme: dark) {
    nav { background: rgba(28, 25, 23, 0.85); }
}

nav .nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

nav .logo {
    font-weight: 700;
    font-size: 18px;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

nav .logo span { font-size: 22px; }

nav .nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

nav .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

nav .nav-links a:hover,
nav .nav-links a.active { color: var(--primary); }

/* Hero */
.hero {
    text-align: center;
    padding: 80px 24px 60px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero .badge-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.badge.orange { color: var(--primary); border-color: var(--primary); background: rgba(232, 89, 12, 0.08); }
.badge.green { color: var(--accent); border-color: var(--accent); background: rgba(5, 150, 105, 0.08); }

/* Sections */
.section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px;
}

.section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.section .section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 17px;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.feature-card .icon {
    font-size: 28px;
    margin-bottom: 12px;
    display: block;
}

.feature-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Manual Styles */
.manual-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.manual-content h1 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 8px;
}

.manual-content > p:first-of-type {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
}

.manual-content h2 {
    font-size: 26px;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    letter-spacing: -0.3px;
}

.manual-content h2:first-of-type { border-top: none; padding-top: 0; }

.manual-content h3 {
    font-size: 19px;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 10px;
    color: var(--primary);
}

.manual-content p { margin-bottom: 14px; }

.manual-content ol, .manual-content ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.manual-content li { margin-bottom: 8px; }

.manual-content strong { font-weight: 600; }

.tip {
    background: rgba(5, 150, 105, 0.08);
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    font-size: 15px;
}

.tip strong { color: var(--accent); }

.warning {
    background: rgba(232, 89, 12, 0.08);
    border-left: 4px solid var(--primary);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 20px 0;
    font-size: 15px;
}

.warning strong { color: var(--primary); }

.shortcut {
    display: inline-block;
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 14px;
    font-family: 'SF Mono', Menlo, monospace;
}

/* FAQ */
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-item summary {
    padding: 18px 24px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.faq-item summary::before {
    content: "+";
    font-size: 20px;
    font-weight: 300;
    color: var(--primary);
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.faq-item[open] summary::before { content: "−"; }

.faq-item .answer {
    padding: 0 24px 18px 60px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 24px;
    color: var(--text-tertiary);
    font-size: 14px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

/* Table of contents */
.toc {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 40px;
}

.toc h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.toc ul {
    list-style: none;
    padding: 0;
    columns: 2;
    column-gap: 24px;
}

.toc li { margin-bottom: 6px; }

.toc a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
}

.toc a:hover { color: var(--primary); }

/* Responsive */
@media (max-width: 640px) {
    .hero h1 { font-size: 32px; }
    .hero .subtitle { font-size: 17px; }
    .section h2 { font-size: 26px; }
    .feature-grid { grid-template-columns: 1fr; }
    .toc ul { columns: 1; }
    nav .nav-links { gap: 16px; }
    nav .nav-links a { font-size: 14px; }
}