/* =========================================
   RESET
========================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Georgia, "Times New Roman", serif;
    background: #f8f6f1;
    color: #242424;
    line-height: 1.7;
}

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

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1120px, 90%);
    margin: 0 auto;
}


/* =========================================
   HEADER
========================================= */

.site-header {
    background: #f8f6f1;
    border-bottom: 1px solid #ddd8ce;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}


/* Logo */

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.logo-mark {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;

    background: #1d2a35;
    color: #f8f6f1;

    font-family: Georgia, serif;
    font-size: 22px;

    border-radius: 50%;
}

.logo-text {
    font-size: 17px;
    line-height: 1.15;
    letter-spacing: 0.2px;
}

.logo-text small {
    font-size: 13px;
    font-weight: 400;
    color: #756f65;
}


/* Navigation */

.navigation {
    display: flex;
    align-items: center;
    gap: 32px;
}

.navigation a {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    color: #514d47;
    transition: color 0.2s ease;
}

.navigation a:hover {
    color: #9b6b36;
}


/* =========================================
   HERO
========================================= */

.hero {
    min-height: 650px;

    display: flex;
    align-items: center;

    background:
        linear-gradient(
            90deg,
            rgba(248, 246, 241, 0.98) 0%,
            rgba(248, 246, 241, 0.92) 55%,
            rgba(248, 246, 241, 0.55) 100%
        );

    border-bottom: 1px solid #ddd8ce;
}

.hero-content {
    padding: 100px 0;
    max-width: 850px;
}

.hero-label,
.section-label {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.5px;
    color: #9b6b36;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(52px, 8vw, 92px);
    line-height: 0.98;
    font-weight: 400;
    letter-spacing: -3px;
    color: #1d2a35;
    margin-bottom: 22px;
}

.hero-subtitle {
    max-width: 700px;
    font-size: clamp(22px, 3vw, 32px);
    line-height: 1.25;
    color: #625a51;
    margin-bottom: 28px;
}

.hero-description {
    max-width: 680px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    color: #625f59;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}


/* =========================================
   BUTTONS
========================================= */

.primary-button,
.secondary-button,
.read-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 48px;
    padding: 12px 25px;

    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;

    transition:
        transform 0.2s ease,
        background 0.2s ease,
        color 0.2s ease;
}

.primary-button {
    background: #1d2a35;
    color: #ffffff;
}

.primary-button:hover {
    background: #9b6b36;
    transform: translateY(-2px);
}

.secondary-button {
    border: 1px solid #bcb5aa;
    color: #38352f;
}

.secondary-button:hover {
    border-color: #1d2a35;
    background: #1d2a35;
    color: #ffffff;
    transform: translateY(-2px);
}


/* =========================================
   BOOK SECTION
========================================= */

.book-section {
    padding: 120px 0;
    background: #ffffff;
}

.section-heading {
    margin-bottom: 65px;
}

.section-heading h2 {
    font-size: clamp(38px, 5vw, 60px);
    font-weight: 400;
    line-height: 1.1;
    color: #1d2a35;
}

.section-intro {
    margin-top: 10px;
    font-size: 21px;
    color: #756f65;
}

.book-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 85px;
    align-items: center;
}


/* Book Cover */

.book-cover-wrapper {
    display: flex;
    justify-content: center;
}

.book-cover {
    width: 100%;
    max-width: 360px;

    background: #eeeeee;

    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.16),
        0 8px 15px rgba(0, 0, 0, 0.08);

    transition: transform 0.3s ease;
}

.book-cover:hover {
    transform: translateY(-7px);
}

.book-cover img {
    width: 100%;
    height: auto;
}


/* Book Information */

.book-details {
    max-width: 650px;
}

.book-kicker {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #9b6b36;
    margin-bottom: 16px;
}

.book-details h3 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.15;
    font-weight: 400;
    color: #1d2a35;
    margin-bottom: 18px;
}

.author {
    font-family: Arial, Helvetica, sans-serif;
    color: #5e5a54;
    margin-bottom: 28px;
}

.book-details > p:not(.book-kicker):not(.author) {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 15px;
    color: #5d5a55;
    margin-bottom: 20px;
}

.book-action {
    margin-top: 32px;
}

.read-button {
    background: #9b6b36;
    color: #ffffff;
}

.read-button:hover {
    background: #1d2a35;
    transform: translateY(-2px);
}


/* =========================================
   AUTHOR SECTION
========================================= */

.author-section {
    padding: 110px 0;
    background: #1d2a35;
    color: #ffffff;
}

.author-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: start;
}

.author-section .section-label {
    color: #c49a67;
}

.author-heading h2 {
    font-size: clamp(42px, 6vw, 70px);
    font-weight: 400;
    line-height: 1.05;
}

.author-description {
    padding-top: 35px;
}

.author-description p {
    font-family: Arial, Helvetica, sans-serif;
    color: #d7d5d0;
    font-size: 16px;
    margin-bottom: 25px;
}


/* =========================================
   READING SECTION
========================================= */

.reading-section {
    padding: 120px 0;
    text-align: center;
    background: #f1eee7;
}

.reading-content {
    max-width: 720px;
}

.reading-content h2 {
    font-size: clamp(40px, 6vw, 65px);
    font-weight: 400;
    line-height: 1.1;
    color: #1d2a35;
    margin-bottom: 20px;
}

.reading-content > p:not(.section-label) {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    color: #625f59;
    margin-bottom: 32px;
}


/* =========================================
   FOOTER
========================================= */

.site-footer {
    background: #151f27;
    color: #ffffff;
    padding: 50px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.footer-brand h3 {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 8px;
}

.footer-brand p,
.footer-author p {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 13px;
    color: #aaa8a2;
}

.footer-author {
    text-align: right;
}

.copyright {
    margin-top: 8px;
}


/* =========================================
   MOBILE
========================================= */

@media (max-width: 800px) {

    .nav-container {
        min-height: 72px;
    }

    .navigation {
        gap: 15px;
    }

    .navigation a {
        font-size: 12px;
    }

    .logo-text {
        font-size: 14px;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }


    .hero {
        min-height: 600px;
    }

    .hero-content {
        padding: 80px 0;
    }

    .hero h1 {
        letter-spacing: -2px;
    }


    .book-section {
        padding: 80px 0;
    }

    .book-layout {
        grid-template-columns: 1fr;
        gap: 55px;
    }

    .book-cover-wrapper {
        justify-content: flex-start;
    }


    .author-section {
        padding: 80px 0;
    }

    .author-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .author-description {
        padding-top: 10px;
    }


    .reading-section {
        padding: 80px 0;
    }


    .footer-content {
        flex-direction: column;
    }

    .footer-author {
        text-align: left;
    }

}


/* =========================================
   SMALL PHONES
========================================= */

@media (max-width: 500px) {

    .navigation {
        display: none;
    }

    .hero h1 {
        font-size: 52px;
    }

    .hero-subtitle {
        font-size: 22px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
    }

}

/* =========================
   NAVIGATION
   ========================= */

.navigation {
    display: flex;
    align-items: center;
    gap: 32px;
}

.navigation a {
    color: inherit;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.navigation a:hover {
    opacity: 0.65;
    transform: translateY(-1px);
}