/* Humble Tomato - Shared Styles */

:root {
    --tomato: #E84430;
    --tomato-dark: #C73726;
    --cream: #FFF8F0;
    --dark: #1A1A1A;
    --mid: #4A4A4A;
    --light: #8A8A8A;
    --sidebar-width: 240px;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--cream);
    color: var(--dark);
    line-height: 1.7;
    font-size: 17px;
}

/* ===== Navigation ===== */

/* Top bar */
nav {
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
    font-weight: 700;
    font-size: 18px;
}

.logo-icon {
    font-size: 24px;
}

/* Desktop: sidebar nav */
.nav-links {
    display: none;
    list-style: none;
}

/* Menu toggle (hamburger) */
.menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark);
}

/* Mobile overlay nav */
.nav-links.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    z-index: 99;
    padding-bottom: 32px;
}

.nav-links a {
    display: block;
    padding: 10px 24px;
    color: var(--mid);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-section-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--light);
    font-weight: 600;
    padding: 16px 24px 6px;
}

.nav-section-label:first-child {
    padding-top: 12px;
}

/* Desktop sidebar layout (>960px) */
@media (min-width: 961px) {
    .menu-toggle {
        display: none;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        overflow-y: auto;
        padding: 16px 0;
        border-right: 1px solid rgba(0, 0, 0, 0.06);
        background: white;
        z-index: 50;
    }

    .nav-links a {
        padding: 5px 16px;
        font-size: 14px;
        border-radius: 4px;
        margin: 1px 8px;
    }

    .nav-links a:hover {
        background: rgba(0, 0, 0, 0.03);
    }

    .nav-links a.active {
        background: rgba(232, 68, 48, 0.08);
        color: var(--tomato);
    }

    .nav-section-label {
        padding: 14px 16px 4px;
        margin-left: 8px;
        font-size: 10px;
    }

    /* Offset main content for sidebar */
    .container,
    .wide-container,
    footer {
        margin-left: var(--sidebar-width);
    }

    .container {
        max-width: calc(800px + var(--sidebar-width));
        padding-left: 48px;
    }
}

/* ===== Container ===== */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    flex: 1;
}

.wide-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: 'DM Serif Display', serif;
    line-height: 1.2;
    color: var(--dark);
}

h1 {
    font-size: 48px;
    margin-bottom: 24px;
}

h2 {
    font-size: 36px;
    margin-top: 64px;
    margin-bottom: 24px;
}

h3 {
    font-size: 24px;
    margin-top: 48px;
    margin-bottom: 16px;
}

h4 {
    font-size: 20px;
    margin-top: 32px;
    margin-bottom: 12px;
}

p {
    margin-bottom: 16px;
    color: var(--mid);
}

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

a:hover {
    text-decoration: underline;
}

strong {
    color: var(--dark);
    font-weight: 600;
}

/* Lists */
ul, ol {
    margin-left: 24px;
    margin-bottom: 16px;
}

li {
    margin-bottom: 8px;
    color: var(--mid);
}

/* Code */
code {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.9em;
}

pre {
    background: rgba(0, 0, 0, 0.05);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 16px;
}

pre code {
    background: none;
    padding: 0;
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--tomato);
    padding-left: 20px;
    margin: 24px 0;
    font-style: italic;
    color: var(--mid);
}

/* Callout boxes — for conceptual content that isn't code */
.callout {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--tomato);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 24px 0;
}

.callout p {
    margin-bottom: 8px;
}

.callout p:last-child {
    margin-bottom: 0;
}

.callout .callout-label {
    font-weight: 700;
    color: var(--dark);
    font-size: 15px;
}

.callout .callout-detail {
    color: var(--mid);
    font-size: 15px;
    padding-left: 8px;
}

/* Concept flow — monospace but visually distinct from code */
.concept-flow {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    padding: 16px 20px;
    margin: 24px 0;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.9em;
    color: var(--mid);
    line-height: 1.8;
    white-space: pre-wrap;
}

/* ===== Hero Section ===== */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero-icon {
    font-size: 64px;
    margin-bottom: 24px;
    display: inline-block;
}

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

/* Page Header */
.page-header {
    padding: 80px 0 40px;
}

.page-header h1 {
    margin-bottom: 16px;
}

.page-header .subtitle {
    text-align: left;
    margin: 0;
}

/* Content */
.content {
    padding: 40px 0 80px;
}

/* ===== Cards ===== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 28px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card-icon {
    font-size: 32px;
    margin-bottom: 16px;
    display: block;
}

.card h3 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 12px;
}

.card p {
    font-size: 15px;
    margin-bottom: 0;
}

.card a {
    display: inline-block;
    margin-top: 16px;
    font-weight: 600;
    font-size: 15px;
}

/* Tag */
.tag {
    display: inline-block;
    background: var(--tomato);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.tag.secondary {
    background: var(--mid);
}

/* ===== Table ===== */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

th {
    background: rgba(0, 0, 0, 0.02);
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
}

td {
    color: var(--mid);
    font-size: 15px;
}

tr:last-child td {
    border-bottom: none;
}

/* Sections */
section {
    margin-bottom: 48px;
}

/* ===== Footer ===== */
footer {
    padding: 48px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    text-align: center;
    color: var(--light);
    font-size: 14px;
}

footer a {
    color: var(--tomato);
}

.footer-line {
    margin-bottom: 8px;
}

/* ===== Journey Cards (Homepage) ===== */
.journey-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 32px 0;
}

.journey-card {
    background: white;
    border-radius: 12px;
    padding: 28px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.journey-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.journey-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 20px;
}

.journey-card h3 a {
    color: var(--dark);
}

.journey-card h3 a:hover {
    color: var(--tomato);
    text-decoration: none;
}

.journey-card p {
    margin-bottom: 0;
    font-size: 15px;
}

.journey-card .card-icon {
    font-size: 32px;
    margin-bottom: 12px;
    display: block;
}

/* ===== Utility ===== */
.text-center {
    text-align: center;
}

.mt-32 {
    margin-top: 32px;
}

.mb-32 {
    margin-bottom: 32px;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 960px) {
    h1 {
        font-size: 36px;
    }

    h2 {
        font-size: 28px;
        margin-top: 48px;
    }

    h3 {
        font-size: 20px;
    }

    .hero {
        padding: 60px 0 40px;
    }

    .page-header {
        padding: 60px 0 32px;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 10px 12px;
    }

    .journey-section {
        grid-template-columns: 1fr;
    }
}