/* ============================================================
   Design tokens
   ============================================================ */

:root {
    --color-text:           #111827;
    --color-text-secondary: #4b5563;
    --color-accent:         #7e3190;
    --color-link:           #2563eb;
    --color-border:         #e5e7eb;
    --color-bg:             #ffffff;
    --color-bg-subtle:      #f9fafb;

    --font-display: 'Gilroy', sans-serif;
    --font-sans:    ui-sans-serif, system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
    --font-serif:   'Garamond', 'Georgia', serif;
    --font-mono:    'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;

    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  1.5rem;
    --space-lg:  2.5rem;
    --space-xl:  4rem;
    --space-2xl: 6rem;

    --max-content: 1280px;
    --pad-x: max(var(--space-lg), calc((100% - var(--max-content)) / 2));
}

/* ============================================================
   Custom fonts
   ============================================================ */

@font-face {
    font-family: 'Gilroy';
    src: url('/fonts/Gilroy-Light.woff2') format('woff2'),
         url('/fonts/Gilroy-Light.woff') format('woff');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Gilroy';
    src: url('/fonts/Gilroy-ExtraBold.woff2') format('woff2'),
         url('/fonts/Gilroy-ExtraBold.woff') format('woff');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Gilroy';
    src: url('/fonts/Gilroy-Regular.woff2') format('woff2'),
         url('/fonts/Gilroy-Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* ============================================================
   Base
   ============================================================ */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    color: var(--color-text);
    background: var(--color-bg);
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.5;
    margin: 0;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: bold;
    line-height: 1.1;
    margin-top: 0;
}

h1 { margin-bottom: var(--space-md); }
h2 { margin-bottom: var(--space-sm); }

p {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.6;
    margin-top: 0;
    margin-bottom: 1.25em;
}

a, a:visited {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ol, ul {
    font-family: var(--font-serif);
}

table {
    border-collapse: collapse;
    border: 1px solid var(--color-border);
    width: 100%;
}

thead {
    background-color: var(--color-text);
    color: var(--color-bg);
}

td, th {
    padding: var(--space-xs) var(--space-sm);
    text-align: left;
}

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

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--pad-x);
    border-bottom: 1px solid var(--color-border);
}

.logo {
    font-family: var(--font-display);
    font-weight: bold;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.logo:visited {
    color: var(--color-text);
}

.navbar {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
    font-size: 0.95rem;
    font-family: var(--font-sans);
}

.navbar-item {
    font-family: var(--font-sans);
}

.navbar-item.active .navbar-link {
    color: var(--color-accent);
    font-weight: 600;
}

.navbar-link,
.navbar-link:visited {
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color 0.15s ease;
}

.navbar-link:hover {
    color: var(--color-text);
    text-decoration: none;
}

.navbar-cta,
.navbar-cta:visited {
    background: var(--color-accent);
    color: white;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.15s ease, color 0.15s ease;
}

.navbar-cta:hover {
    background: #6a2879;
    color: white;
}

.navbar-button {
    display: none;
    -webkit-appearance: none;
    appearance: none;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-bg);
    padding: 0.4rem 0.8rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    cursor: pointer;
    color: var(--color-text);
}

@media (max-width: 680px) {
    .nav {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }

    .navbar {
        display: none;
        position: fixed;
        inset: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: var(--color-bg);
        height: 100vh;
        gap: 2rem;
        font-size: 1.5rem;
        margin: 0;
        padding: 0;
        z-index: 100;
    }

    .navbar.active {
        display: flex;
    }

    .navbar-button {
        display: block;
        z-index: 101;
    }

    #close {
        display: none;
    }

    .navbar.active ~ #close {
        display: block;
        position: fixed;
        top: 1rem;
        right: 1rem;
    }

    .navbar.active ~ #open {
        display: none;
    }

    #open {
        display: block;
    }
}

/* ============================================================
   Homepage hero
   ============================================================ */

.main {
    display: grid;
    grid-template-columns: 3fr 2fr;
    column-gap: var(--space-xl);
    padding: var(--space-lg) var(--pad-x);
    border-bottom: 1px solid var(--color-border);
    align-items: start;
    background: linear-gradient(140deg, hsl(280, 40%, 97%) 0%, white 55%);
}

.main-heading h1 {
    font-size: clamp(2.5rem, 6vw, 6rem);
    font-weight: bold;
    letter-spacing: -0.03em;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    line-height: 1.05;
}

/* Right column: book cover + code window stacked */

.hero-visual {
    grid-column: 2;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: flex-start;
}

.bird {
    max-height: 280px;
    width: auto;
    border-radius: 3px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

/* Code window */

.hero-code {
    background: hsl(230, 1%, 98%);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
    width: 100%;
    min-width: 0;
}

.hero-code-chrome {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.8rem;
    background: hsl(230, 4%, 91%);
    border-bottom: 1px solid hsl(230, 4%, 86%);
}

.chrome-dot {
    display: inline-block;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: hsl(230, 4%, 78%);
}

.chrome-filename {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: hsl(230, 4%, 55%);
    margin-left: 0.4rem;
}

.hero-code pre[class*="language-"] {
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    font-size: 0.82rem;
    line-height: 1.55;
    overflow-x: auto;
}

.subhead {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 1.25rem;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    font-style: normal;
}

.author {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    margin-top: var(--space-md);
}

.author::before {
    content: '';
    display: inline-block;
    width: 3rem;
    height: 1px;
    background: var(--color-border);
    flex-shrink: 0;
}

/* ============================================================
   Buy buttons
   ============================================================ */

.buy {
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin: 0;
}

.buy-button {
    display: inline-flex;
    align-items: center;
    border-radius: 6px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.55rem 1.1rem;
    text-decoration: none;
    transition: all 0.15s ease;
    white-space: nowrap;
    cursor: pointer;
}

.buy-button:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

a.buy-button.primary {
    background: var(--color-text);
    color: var(--color-bg);
    border: 1px solid var(--color-text);
}

a.buy-button.primary:hover {
    background: #374151;
    border-color: #374151;
}

a.buy-button.secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

a.buy-button.secondary:hover {
    border-color: var(--color-text);
    background: var(--color-bg-subtle);
}

/* Retailer disclosure */

.buy-more {
    font-family: var(--font-sans);
}

.buy-more summary {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.4rem 0;
    list-style: none;
    user-select: none;
}

.buy-more summary::-webkit-details-marker {
    display: none;
}

.buy-more summary::after {
    content: ' ▾';
    font-size: 0.75rem;
}

.buy-more[open] summary::after {
    content: ' ▴';
}

.buy-more summary:hover {
    color: var(--color-text);
}

.buy-more-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    padding-top: var(--space-xs);
}

.buy-more-list .buy-button {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.buy-more-list .buy-button:hover {
    color: var(--color-text);
    border-color: var(--color-text-secondary);
    background: var(--color-bg-subtle);
}

/* Homepage responsive */

@media (max-width: 1024px) {
    .bird {
        max-height: 240px;
    }
}

@media (max-width: 800px) {
    .main {
        grid-template-columns: 1fr;
    }

    /* Reorder: heading → visual (cover + code) → content */
    .main-heading  { order: 1; }
    .hero-visual   { order: 2; }
    .main-content  { order: 3; }

    .hero-visual {
        grid-column: auto;
        grid-row: auto;
        flex-direction: row;
        align-items: flex-start;
        margin-bottom: var(--space-md);
        min-width: 0;
    }

    .bird {
        max-height: 180px;
    }

    .hero-code {
        flex: 1;
    }
}

@media (max-width: 540px) {
    .main {
        padding: var(--space-lg) var(--space-sm);
    }

    .hero-visual {
        flex-direction: column;
    }

    .bird {
        max-height: 160px;
    }

    .hero-code pre[class*="language-"] {
        font-size: 0.7rem;
    }
}

/* ============================================================
   Examples / recipe list
   ============================================================ */

.example-list {
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    list-style: none;
}

.example-list li {
    display: grid;
    grid-template-columns: 0 1fr;
    grid-gap: 3em;
    margin-bottom: 1em;
}

.example-list a {
    display: inline;
}

.example-list li::before {
    content: attr(data-chapter);
    display: block;
    font-weight: 600;
    font-size: 0.8em;
    color: var(--color-text-secondary);
    width: 2.5em;
    text-align: right;
}

.example-view {
    display: grid;
    grid-template-columns: 400px 1fr;
    min-height: 90vh;
}

.example-view iframe {
    width: 100%;
    height: 100%;
}

/* ============================================================
   Wrapper (generic page layout)
   ============================================================ */

.wrapper {
    padding: var(--space-xl) var(--space-lg);
    max-width: 80ch;
}

/* ============================================================
   Article / recipe pages
   ============================================================ */

.article {
    padding: var(--space-xl) var(--space-lg);
    max-width: 68ch;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.7;
}

.article h1 {
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.article h2 {
    font-size: 1.5rem;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.article p {
    font-family: var(--font-serif);
    line-height: 1.75;
}

.article-list {
    list-style: none;
    font-family: var(--font-sans);
    padding: 0;
    margin: 0;
    line-height: 2;
}

.article-date {
    font-weight: 600;
    font-size: 0.85em;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
}

.article-date::after {
    content: ' ·';
}

@media (max-width: 600px) {
    .article {
        padding: var(--space-lg) var(--space-sm);
        font-size: 1rem;
    }
}

/* ============================================================
   Chapters section
   ============================================================ */

.chapters-section {
    padding: var(--space-xl) var(--pad-x);
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border);
}

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

.section-header h2 {
    margin: 0;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
}

.section-meta {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: chapter;
}

.chapter-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    counter-increment: chapter;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    line-height: 1.4;
}

.chapter-card::before {
    content: counter(chapter, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-accent);
    font-weight: bold;
    padding-top: 0.15em;
    flex-shrink: 0;
}

@media (max-width: 900px) {
    .chapters-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 580px) {
    .chapters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================
   Translations section
   ============================================================ */

.translations-section {
    padding: var(--space-xl) var(--pad-x);
    border-bottom: 1px solid var(--color-border);
}

.translations-section h2 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    letter-spacing: 0;
}

.translations-grid {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.translation-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.translation-item img {
    max-height: 160px;
    width: auto;
    border-radius: 3px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.translation-item span {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ============================================================
   Testimonials
   ============================================================ */

.testimonials-section {
    padding: var(--space-xl) var(--pad-x);
    border-bottom: 1px solid var(--color-border);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.testimonial-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin: 0;
}

.testimonial-quote {
    margin: 0 0 var(--space-md) 0;
    position: relative;
}

.testimonial-quote::before {
    content: '\201C';
    font-size: 3.5rem;
    line-height: 0.8;
    color: var(--color-accent);
    opacity: 0.25;
    font-family: var(--font-serif);
    display: block;
    margin-bottom: var(--space-xs);
}

.testimonial-quote p {
    font-family: var(--font-serif);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    margin: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-sans);
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--color-border);
}

.testimonial-author div {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.testimonial-author strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.testimonial-author span {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

@media (max-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 580px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   Media / On screen
   ============================================================ */

.media-section {
    padding: var(--space-xl) var(--pad-x);
    border-bottom: 1px solid var(--color-border);
}

.media-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.video-link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.video-link:hover {
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.video-thumbnail {
    position: relative;
}

.video-thumbnail img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.video-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    background: rgba(0, 0, 0, 0.35);
    transition: background 0.15s ease;
}

.video-link:hover .video-play {
    background: rgba(126, 49, 144, 0.6);
}

.video-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--space-sm);
    font-family: var(--font-sans);
}

.video-meta strong {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.35;
}

.video-meta span {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

@media (max-width: 800px) {
    .media-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .media-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   Footer
   ============================================================ */

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--pad-x);
    border-top: 1px solid var(--color-border);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

@media (max-width: 680px) {
    .chapters-section,
    .testimonials-section,
    .media-section,
    .translations-section,
    footer {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }
}

footer a,
footer a:visited {
    color: var(--color-text-secondary);
    text-decoration: none;
}

footer a:hover {
    color: var(--color-text);
}

/* Recipes */

.recipe-breadcrumb {
    font-family: "Helvetica Neue", "Arial", sans-serif;
    font-size: 0.9rem;
    color: rgba(0, 0, 0, 0.5);
    margin-bottom: 1rem;
}

.recipe-breadcrumb a {
    color: inherit;
    text-decoration: none;
}

.recipe-breadcrumb a:hover {
    text-decoration: underline;
}

.recipe-meta {
    font-family: "Helvetica Neue", "Arial", sans-serif;
    font-size: 0.95rem;
    color: rgba(0, 0, 0, 0.55);
    margin-top: -1.5rem;
    margin-bottom: 2rem;
}

.recipe-page .article,
.recipe-page {
    max-width: 80ch;
}

.recipe-code {
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.recipe-code pre {
    border-radius: 6px;
    margin: 0;
    font-size: 0.9rem;
}

.recipe-actions {
    margin-top: 1.5rem;
}

.playground-button {
    display: inline-block;
    background-color: #0694f9;
    color: white;
    padding: 0.65rem 1.4rem;
    border-radius: 30px;
    font-family: "Helvetica Neue", "Arial", sans-serif;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.15s ease;
}

.playground-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 148, 249, 0.35);
    color: white;
}

.playground-button:visited {
    color: white;
}

.recipe-list {
    font-family: "Helvetica Neue", "Arial", sans-serif;
    padding-left: 2rem;
    margin-bottom: 2rem;
}

.recipe-list-item {
    margin-bottom: 0.4rem;
    font-size: 1rem;
}

/* ============================================================
   Author page
   ============================================================ */

.author-photo {
    float: right;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 0 var(--space-md) var(--space-lg);
    border: 3px solid var(--color-border);
    shape-outside: circle();
}

@media (max-width: 540px) {
    .author-photo {
        float: none;
        display: block;
        margin: 0 auto var(--space-md);
    }
}

/* ============================================================
   Book page
   ============================================================ */

.book-cover-aside {
    float: right;
    display: block;
    width: 140px;
    margin: 0 0 var(--space-md) var(--space-lg);
    text-decoration: none;
}

.book-cover-aside img {
    width: 100%;
    border-radius: 3px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.book-cover-aside:hover img {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
}

.book-meta-line {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 0;
}

@media (max-width: 540px) {
    .book-cover-aside {
        float: none;
        margin: 0 auto var(--space-md);
    }
}