:root {
    --site-max-width: 1180px;
    --content-max-width: 760px;

    --color-bg: #f6f1e8;
    --color-surface: #fffdf9;
    --color-surface-2: #efe5d7;
    --color-text: #201b16;
    --color-text-soft: #3b342d;
    --color-muted: #6e645a;
    --color-border: #ded4c6;
    --color-accent: #7a4b2a;
    --color-accent-dark: #5f391f;
    --color-header: #191512;
    --color-header-text: #f7f1e8;
    --color-hero-text: #f7f3ed;
    --color-hero-muted: rgba(247, 243, 237, 0.8);
    --color-footer-text: rgba(255, 255, 255, 0.76);
    --color-footer-muted: rgba(255, 255, 255, 0.62);

    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-book: 0 18px 40px rgba(0, 0, 0, 0.18);

    --font-serif: Georgia, "Times New Roman", serif;
    --font-sans: Arial, Helvetica, sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    font-size: 16px;
}

img {
    display: block;
    max-width: 100%;
}

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

a:hover {
    color: var(--color-accent-dark);
    text-decoration: underline;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text);
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
}

p,
li,
small,
figcaption,
label,
strong,
em {
    color: inherit;
}

p {
    margin: 0 0 1.1rem;
}

ul,
ol {
    margin: 0 0 1.1rem 1.25rem;
    padding: 0;
}

button,
input,
select,
textarea {
    font: inherit;
}

.container {
    width: min(100% - 2rem, var(--site-max-width));
    margin: 0 auto;
}

.narrow {
    max-width: var(--content-max-width);
}

.site-main {
    min-height: 70vh;
}

.eyebrow {
    margin-bottom: 0.85rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.75rem;
    font-weight: 700;
}

/* Header */
.site-header {
    background: var(--color-header);
    color: var(--color-header-text);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 20;
}

.header-inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
}

.site-brand,
.site-brand:hover {
    color: var(--color-header-text);
    text-decoration: none;
}

.site-brand {
    display: inline-flex;
    flex-direction: column;
    gap: 0.1rem;
}

.site-brand-name {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    line-height: 1;
    color: var(--color-header-text);
}

.site-brand-tagline {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: rgba(255, 255, 255, 0.65);
}

.site-nav {
    display: flex;
    gap: 1.2rem;
    align-items: center;
    flex-wrap: wrap;
}

.nav-link,
.nav-link:visited {
    color: rgba(255, 255, 255, 0.84);
}

.nav-link:hover {
    color: #fff;
    text-decoration: none;
}

/* Hero */
.hero {
    background: linear-gradient(180deg, #191512 0%, #2b231d 100%);
    color: var(--color-hero-text);
    padding: 5rem 0;
}

.hero * {
    color: inherit;
}

.hero .eyebrow {
    color: rgba(255, 255, 255, 0.68);
}

.hero-inner {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 4rem;
    align-items: center;
}

.hero-cover {
    width: 100%;
    max-width: 280px;
    border-radius: 0.45rem;
    box-shadow: var(--shadow-book);
    background: #ddd;
}

.hero-title {
    color: #fff;
    font-size: clamp(2.3rem, 4vw, 4.3rem);
    margin-bottom: 1rem;
}

.hero-copy {
    color: var(--color-hero-muted);
    font-size: 1.15rem;
    line-height: 1.75;
    margin-bottom: 1.8rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.button-primary,
.button-secondary,
.store-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.75rem 1.2rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid transparent;
    transition:
            transform 0.15s ease,
            background-color 0.15s ease,
            color 0.15s ease,
            border-color 0.15s ease;
}

.button-primary {
    background: var(--color-accent);
    color: #fff;
}

.button-primary:hover {
    background: var(--color-accent-dark);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}

.button-secondary {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.26);
}

.button-secondary:hover {
    color: #fff;
    text-decoration: none;
    border-color: rgba(255, 255, 255, 0.55);
    transform: translateY(-1px);
}

/* Home */
.home-intro {
    padding: 3.5rem 0 1.5rem;
}

.intro-lead {
    font-family: var(--font-serif);
    font-size: clamp(1.35rem, 2vw, 1.9rem);
    line-height: 1.55;
    text-align: center;
    color: var(--color-text);
}

.home-callouts {
    padding: 1.5rem 0 4.5rem;
}

.callout-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.callout-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    color: var(--color-text);
}

.callout-card h2 {
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.callout-card p {
    color: var(--color-text-soft);
}

.text-link {
    font-weight: 700;
    color: var(--color-accent);
}

/* Page hero */
.page-hero {
    padding: 4rem 0 2rem;
    color: var(--color-text);
}

.page-hero h1 {
    color: var(--color-text);
    font-size: clamp(2rem, 3.5vw, 3.4rem);
    margin-bottom: 1rem;
}

.page-hero-copy {
    font-size: 1.08rem;
    color: var(--color-muted);
    max-width: 650px;
}

/* Books */
.books-section {
    padding: 1rem 0 4.5rem;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.book-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition:
            transform 0.16s ease,
            box-shadow 0.16s ease;
    color: var(--color-text);
}

.book-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.1);
}

.book-card-image-link {
    display: block;
    background: #efe6d8;
}

.book-card-cover,
.book-card-cover-placeholder {
    width: 100%;
    aspect-ratio: 2 / 3;
}

.book-card-cover {
    object-fit: cover;
}

.book-card-cover-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted);
}

.book-card-body {
    padding: 1.3rem 1.3rem 1.5rem;
}

.book-card-meta {
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 0.55rem;
}

.book-card-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.book-card-title a,
.book-card-title a:visited {
    color: var(--color-text);
}

.book-card-title a:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.book-card-excerpt {
    color: var(--color-text-soft);
    margin-bottom: 1rem;
}

/* Book page */
.book-page {
    padding: 4rem 0 5rem;
    color: var(--color-text);
}

.book-layout {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
}

.book-sidebar {
    position: sticky;
    top: 110px;
}

.book-main-image-wrap {
    margin-bottom: 1rem;
}

.book-main-image {
    width: 100%;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-book);
    background: #ece2d4;
}

.book-thumbnail-strip {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 110px;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.4rem;
}

.book-thumb-button {
    appearance: none;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: 0.8rem;
    padding: 0.45rem;
    text-align: left;
    cursor: pointer;
    transition:
            border-color 0.15s ease,
            transform 0.15s ease,
            box-shadow 0.15s ease;
    color: var(--color-text);
}

.book-thumb-button:hover {
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.book-thumb-button.is-active {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(122, 75, 42, 0.12);
}

.book-thumb-image {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: 0.45rem;
}

.book-thumb-label {
    display: block;
    font-size: 0.78rem;
    color: var(--color-muted);
    text-transform: capitalize;
    line-height: 1.2;
}

.book-title {
    font-size: clamp(2.2rem, 4vw, 3.7rem);
    margin-bottom: 1rem;
    color: var(--color-text);
}

.book-meta-list {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 1.35rem;
    color: var(--color-muted);
}

.book-meta-list strong {
    color: var(--color-text);
}

.book-lead {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    line-height: 1.7;
    color: var(--color-text-soft);
    margin-bottom: 2rem;
}

.buy-section {
    margin-bottom: 2.5rem;
}

.buy-section h2 {
    font-size: 1.45rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.store-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.store-button {
    background: var(--color-accent);
    color: #fff;
}

.store-button:hover {
    background: var(--color-accent-dark);
    color: #fff;
    text-decoration: none;
}

.book-description {
    max-width: var(--content-max-width);
    color: var(--color-text);
}

.book-description h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.book-description p,
.book-description li {
    font-family: var(--font-serif);
    font-size: 1.08rem;
    line-height: 1.95;
    color: #2f2a25;
}

/* About */
.about-section {
    padding: 1rem 0 5rem;
    color: var(--color-text);
}

.about-layout {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 4rem;
    align-items: start;
}

.about-sidebar {
    position: sticky;
    top: 110px;
}

.author-photo {
    width: 100%;
    border-radius: 1rem;
    box-shadow: var(--shadow-soft);
}

.about-content {
    max-width: var(--content-max-width);
}

.about-lead {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    line-height: 1.75;
    color: var(--color-text-soft);
    margin-bottom: 1.5rem;
}

.about-content p {
    font-family: var(--font-serif);
    font-size: 1.08rem;
    line-height: 1.95;
    color: #2f2a25;
}

/* Footer */
.site-footer {
    background: #181411;
    color: var(--color-footer-text);
    padding-top: 3rem;
    margin-top: 2rem;
}

.site-footer h2,
.site-footer h3 {
    color: #fff;
}

.site-footer p,
.site-footer li,
.site-footer small {
    color: var(--color-footer-muted);
}

.site-footer a,
.site-footer a:visited {
    color: var(--color-footer-text);
}

.site-footer a:hover {
    color: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
}

.footer-title {
    font-size: 1.45rem;
    margin-bottom: 0.7rem;
}

.footer-text {
    max-width: 36rem;
}

.footer-heading {
    font-size: 1rem;
    margin-bottom: 0.8rem;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.45rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1rem 0 1.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.55);
}

/* Error */
.error-page {
    padding: 5rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 980px) {
    .hero-inner,
    .book-layout,
    .about-layout,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .book-sidebar,
    .about-sidebar {
        position: static;
    }

    .hero-media {
        display: flex;
        justify-content: center;
    }

    .hero-cover {
        max-width: 240px;
    }

    .book-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 640px) {
    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        padding: 1rem 0;
    }

    .site-nav {
        gap: 0.9rem;
    }

    .hero {
        padding: 3.5rem 0;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-copy,
    .book-lead,
    .about-lead {
        font-size: 1.1rem;
    }

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

    .book-thumbnail-strip {
        grid-auto-columns: 96px;
    }
}