/**
 * MX Books Pages Styles
 *
 * @description External stylesheet for the MX books landing and detail pages.
 * @author Tom Cranstoun
 * @version 1.0
 * @modified 2026-03-24
 *
 * @mx:status active
 * @mx:contentType stylesheet
 * @mx:tags mx, books, landing-page
 */

@font-face {
    font-family: "Mozilla Headline";
    src: url("../../website/public/fonts/mozilla-headline/mozilla-headline-300.ttf") format("truetype");
    font-style: normal;
    font-weight: 300;
}

@font-face {
    font-family: "Mozilla Headline";
    src: url("../../website/public/fonts/mozilla-headline/mozilla-headline-400.ttf") format("truetype");
    font-style: normal;
    font-weight: 400;
}

@font-face {
    font-family: "Mozilla Headline";
    src: url("../../website/public/fonts/mozilla-headline/mozilla-headline-700.ttf") format("truetype");
    font-style: normal;
    font-weight: 700;
}

:root {
    --mx-blue: #3143dc;
    --mx-blue-soft: rgba(49, 67, 220, 0.12);
    --mx-text: #0f1014;
    --mx-muted: #5b5f6f;
    --mx-border: rgba(15, 16, 20, 0.18);
    --mx-surface: rgba(255, 255, 255, 0.88);
    --mx-surface-strong: #ffffff;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--mx-text);
    background: #f5f6fa;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(
        115deg,
        transparent 0,
        transparent calc(50% - 0.5px),
        rgba(49, 67, 220, 0.08) calc(50% - 0.5px),
        rgba(49, 67, 220, 0.08) calc(50% + 0.5px),
        transparent calc(50% + 0.5px),
        transparent 100%
    );
    background-size: 32px 32px;
    -webkit-mask-image: radial-gradient(circle at center, black 22%, transparent 78%);
    mask-image: radial-gradient(circle at center, black 22%, transparent 78%);
    opacity: 0.55;
    z-index: 0;
}

a {
    color: var(--mx-blue);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.15em;
}

main {
    position: relative;
    z-index: 1;
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 72px;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #fff;
    color: #000;
    padding: 12px 16px;
    border: 1px solid #000;
    z-index: 100;
}

.skip-link:focus {
    left: 16px;
    top: 16px;
}

/* ── Hero ── */

.hero {
    position: relative;
    display: grid;
    gap: 24px;
    padding: 88px 32px 40px;
    border: 1px solid rgba(15, 16, 20, 0.16);
    background: #fff;
    overflow: hidden;
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero-brand {
    display: flex;
    align-items: stretch;
    gap: 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 228px;
    height: 90px;
    padding: 0 20px;
    border: 1px solid #000;
    background: #fff;
    color: #000;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
    margin-left: -1px;
}

.hero-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 90px;
    height: 90px;
    border: 1px solid #000;
    background: #000;
    color: #fff;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.04em;
}

.hero h1 {
    max-width: 16ch;
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(3rem, 8vw, 6.7rem);
    font-weight: 400;
    letter-spacing: -0.06em;
    line-height: 0.93;
    text-wrap: balance;
}

.hero h1 span {
    display: block;
}

.hero h1 .accent {
    color: var(--mx-blue);
}

.hero h1::before,
.hero h1::after {
    content: "";
    display: block;
    height: 1px;
    background: rgba(15, 16, 20, 0.65);
}

.hero h1::before {
    width: min(28vw, 360px);
    margin-bottom: 18px;
}

.hero h1::after {
    width: min(46vw, 620px);
    margin-top: 18px;
}

.subtitle {
    max-width: none;
    width: fit-content;
    margin: 0;
    color: var(--mx-muted);
    font-size: clamp(1.08rem, 1.5vw, 1.35rem);
    line-height: 1.55;
}

/* ── Sections ── */

.section {
    display: grid;
    gap: 18px;
    padding: 36px 0;
    border-top: 1px solid var(--mx-border);
}

.section-title {
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.05em;
    line-height: 0.98;
    text-wrap: balance;
}

/* ── Content blocks ── */

.content-block {
    max-width: 880px;
    display: grid;
    gap: 14px;
    padding: 28px;
    border: 1px solid var(--mx-border);
    background: var(--mx-surface);
    backdrop-filter: blur(6px);
}

.content-block p {
    margin: 0;
    font-size: 1.04rem;
}

.content-block p:first-child {
    font-size: 1.2rem;
    line-height: 1.5;
}

/* ── Card grid (3-column for books index) ── */

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.card {
    position: relative;
    display: grid;
    gap: 18px;
    min-height: 100%;
    padding: 28px;
    border: 1px solid rgba(15, 16, 20, 0.14);
    background: #fff;
    text-decoration: none;
    color: inherit;
    transition: transform 140ms ease, box-shadow 140ms ease;
}

a.card:hover,
a.card:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(49, 67, 220, 0.12);
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 72px;
    height: 4px;
    background: var(--mx-blue);
}

.card h3 {
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 400;
    letter-spacing: -0.05em;
    line-height: 0.98;
}

.card p {
    margin: 0;
    color: var(--mx-muted);
}

.card-outcome {
    margin: 0;
    color: var(--mx-blue);
    font-weight: 700;
    font-size: 0.95rem;
}

.card-badge {
    display: inline-flex;
    width: fit-content;
    padding: 6px 12px;
    border: 1px solid rgba(49, 67, 220, 0.22);
    background: var(--mx-blue-soft);
    color: var(--mx-blue);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.card-badge.free {
    border-color: rgba(22, 163, 74, 0.3);
    background: rgba(22, 163, 74, 0.1);
    color: #15803d;
}

/* ── Books bridge text ── */

.books-bridge {
    margin: 20px 0 0;
    font-size: 1.15rem;
    color: var(--mx-muted);
    letter-spacing: -0.01em;
}

/* ── Hostile list ── */

.hostile-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0;
}

.hostile-list li {
    padding: 14px 0 14px 24px;
    position: relative;
    font-size: 1.04rem;
    color: var(--mx-muted);
    border-bottom: 1px solid var(--mx-border);
}

.hostile-list li:last-child {
    border-bottom: none;
}

.hostile-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 22px;
    width: 8px;
    height: 8px;
    background: var(--mx-blue);
}

/* ── CTA button ── */

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-width: 250px;
    padding: 17px 20px;
    border: 1px solid #000;
    background: #000;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
    transition: transform 140ms ease, background 140ms ease, color 140ms ease;
}

.cta-button::after {
    content: "↗";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-right: -4px;
    border: 1px solid #000;
    background: #d2e7ff;
    color: #000;
    font-size: 1.3rem;
    line-height: 1;
}

.cta-button:hover,
.cta-button:focus-visible {
    transform: translateY(-1px);
    background: var(--mx-blue);
    border-color: var(--mx-blue);
    color: #fff;
}

.cta-button.secondary {
    background: #fff;
    color: #000;
    border-color: var(--mx-border);
}

.cta-button.secondary:hover,
.cta-button.secondary:focus-visible {
    background: var(--mx-blue-soft);
    border-color: var(--mx-blue);
    color: var(--mx-blue);
}

.cta-button.secondary::after {
    content: "→";
    background: var(--mx-blue-soft);
    border-color: var(--mx-border);
    color: var(--mx-blue);
}

/* ── Signup section ── */

.signup-section {
    align-items: start;
}

.signup-intro {
    max-width: 34rem;
    margin: 0;
    color: var(--mx-muted);
    font-size: 1.05rem;
}

/* ── Author section ── */

.headline {
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(1.55rem, 3vw, 2.2rem);
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 1.04;
}

.author-bio {
    max-width: 880px;
    display: grid;
    gap: 14px;
    padding: 28px;
    border: 1px solid var(--mx-border);
    background: var(--mx-surface);
    backdrop-filter: blur(6px);
}

.author-bio p {
    margin: 0;
    font-size: 1.04rem;
}

/* ── Contact ── */

.contact {
    max-width: 880px;
    padding-bottom: 10px;
}

.contact p {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--mx-muted);
    margin: 0;
}

/* ── Footer ── */

.tagline {
    padding-top: 24px;
    border-top: 1px solid var(--mx-border);
    color: var(--mx-muted);
    font-size: 0.95rem;
    letter-spacing: 0.03em;
}

/* ── Back navigation ── */

.back-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    padding: 10px 0;
    color: var(--mx-muted);
    font-size: 0.92rem;
    text-decoration: none;
    letter-spacing: 0.02em;
}

.back-nav:hover {
    color: var(--mx-blue);
}

/* ── Detail page: book hero ── */

.book-hero {
    position: relative;
    display: grid;
    gap: 18px;
    padding: 64px 32px 40px;
    border: 1px solid rgba(15, 16, 20, 0.16);
    background: #fff;
    overflow: hidden;
}

.book-hero > * {
    position: relative;
    z-index: 1;
}

.book-hero h1 {
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    letter-spacing: -0.06em;
    line-height: 0.93;
}

.book-hero h1::after {
    content: "";
    display: block;
    width: min(46vw, 620px);
    height: 1px;
    margin-top: 18px;
    background: rgba(15, 16, 20, 0.65);
}

.book-subtitle {
    margin: 0;
    font-size: clamp(1.1rem, 1.8vw, 1.45rem);
    color: var(--mx-muted);
    line-height: 1.5;
    max-width: 52ch;
}

.book-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

/* ── Detail page: chapter list ── */

.chapter-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0;
}

.chapter-list li {
    padding: 14px 0;
    border-bottom: 1px solid var(--mx-border);
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 12px;
    align-items: baseline;
}

.chapter-list li:first-child {
    border-top: 1px solid var(--mx-border);
}

.chapter-num {
    color: var(--mx-blue);
    font-weight: 700;
    font-size: 0.88rem;
    letter-spacing: 0.04em;
}

.chapter-name {
    font-size: 1.04rem;
}

/* ── Detail page: feature list ── */

.feature-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 12px;
}

.feature-list li {
    padding-left: 24px;
    position: relative;
    font-size: 1.04rem;
}

.feature-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--mx-blue);
}

/* ── Detail page: audience tags ── */

.audience-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.audience-tag {
    display: inline-flex;
    padding: 6px 14px;
    border: 1px solid var(--mx-border);
    background: #fff;
    font-size: 0.88rem;
    color: var(--mx-muted);
    letter-spacing: 0.02em;
}

/* ── CTA group ── */

.cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

/* ── Testimonial quotes ── */

.quote-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.quote {
    padding: 24px;
    border: 1px solid var(--mx-border);
    background: #fff;
    display: grid;
    gap: 12px;
}

.quote p {
    margin: 0;
    font-size: 1.04rem;
    font-style: italic;
    color: var(--mx-muted);
}

.quote cite {
    font-style: normal;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--mx-text);
}

/* ── Service cards (2-column) ── */

.service-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.service-card {
    position: relative;
    display: grid;
    gap: 12px;
    padding: 28px;
    border: 1px solid rgba(15, 16, 20, 0.14);
    background: #fff;
    grid-template-rows: auto 1fr auto;
}

.service-card .cta-button {
    justify-self: start;
    margin-top: 8px;
    font-size: 0.85rem;
    padding: 10px 24px;
}

.service-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 48px;
    height: 4px;
    background: var(--mx-blue);
}

.service-card h3 {
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(1.3rem, 2vw, 1.7rem);
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.service-card p {
    margin: 0;
    color: var(--mx-muted);
    font-size: 1rem;
}

/* ── Split layout (narrative + highlights) ── */

.split-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 32px;
    align-items: start;
}

.split-narrative {
    display: grid;
    gap: 14px;
}

.split-narrative p {
    margin: 0;
    font-size: 1.04rem;
    line-height: 1.65;
    color: var(--mx-muted);
}

.split-highlights {
    display: grid;
    gap: 0;
    border: 1px solid var(--mx-border);
    background: #fff;
}

.highlight-item {
    display: grid;
    gap: 4px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--mx-border);
}

.highlight-item:last-child {
    border-bottom: none;
}

.highlight-number {
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--mx-blue);
}

.highlight-label {
    font-size: 0.88rem;
    color: var(--mx-muted);
    letter-spacing: 0.01em;
}

/* ── Track record cards ── */

.track-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.track-card {
    position: relative;
    display: grid;
    gap: 10px;
    padding: 24px;
    border: 1px solid var(--mx-border);
    background: #fff;
}

.track-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 40px;
    height: 3px;
    background: var(--mx-blue);
}

.track-card h3 {
    margin: 0;
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: clamp(1.1rem, 1.6vw, 1.4rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.track-card p {
    margin: 0;
    color: var(--mx-muted);
    font-size: 0.95rem;
    line-height: 1.55;
}

/* ── Highlight label bold ── */

.highlight-label-bold {
    font-family: "Mozilla Headline", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1;
    color: var(--mx-text);
}

/* ── Gathering principles strip ── */

.gathering-principles {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 4px;
}

.principle-tag {
    display: inline-flex;
    padding: 8px 16px;
    border: 1px solid rgba(49, 67, 220, 0.22);
    background: var(--mx-blue-soft);
    font-size: 0.88rem;
    color: var(--mx-blue);
    letter-spacing: 0.01em;
}

/* ── Client logo strip ── */

.client-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.client-tag {
    display: inline-flex;
    padding: 8px 16px;
    border: 1px solid var(--mx-border);
    background: #fff;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--mx-text);
}

/* ── Responsive: 900px ── */

@media (max-width: 900px) {
    main {
        width: min(100% - 20px, 1180px);
        padding-top: 18px;
    }

    .hero {
        padding: 64px 20px 28px;
    }

    .hero-badge {
        min-width: 180px;
    }

    .card-grid,
    .service-grid,
    .quote-grid {
        grid-template-columns: 1fr;
    }

    .split-layout {
        grid-template-columns: 1fr;
    }

    .split-highlights {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .content-block,
    .author-bio {
        padding: 22px;
    }

    .book-hero {
        padding: 48px 20px 28px;
    }
}

/* ── Responsive: 560px ── */

@media (max-width: 560px) {
    .hero-brand {
        flex-direction: column;
        align-items: start;
    }

    .hero-badge {
        min-width: 0;
        width: auto;
        height: 54px;
        padding: 0 14px;
        margin-left: 0;
        margin-top: -1px;
    }

    .hero-logo {
        width: 68px;
        height: 68px;
        font-size: 24px;
    }

    .hero {
        padding: 48px 16px 24px;
    }

    .hero h1 {
        max-width: none;
        font-size: clamp(2.2rem, 9vw, 3.5rem);
    }

    .subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: clamp(1.6rem, 7vw, 2.2rem);
    }

    .content-block,
    .author-bio {
        padding: 18px;
    }

    .split-highlights {
        grid-template-columns: 1fr;
    }

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

    .cta-button {
        min-width: 100%;
        width: 100%;
    }

    .cta-button::after {
        margin-left: auto;
    }

    .book-hero {
        padding: 36px 16px 24px;
    }

    .book-hero h1 {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .chapter-list li {
        grid-template-columns: 2.5rem 1fr;
    }
}