/* CEMForge Publishing - Website Styles */

/* ===== CSS Variables ===== */
:root {
    --color-primary: #E8922D;
    --color-primary-dark: #C97A1F;
    --color-primary-light: #F5A84A;
    --color-background: #2D2520;
    --color-background-light: #3D3530;
    --color-text: #F5F0E8;
    --color-text-muted: #B8B0A8;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --max-width: 1200px;
    --border-radius: 8px;
    --transition: 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: var(--color-primary-light);
}

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

/* ===== Header ===== */
.header {
    background-color: var(--color-background);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--color-background-light);
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--color-text);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

.nav a:hover {
    color: var(--color-primary);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(180deg, var(--color-background-light) 0%, var(--color-background) 100%);
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Main Content ===== */
main {
    flex: 1;
    padding: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

/* ===== Book Grid ===== */
.section-title {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 200px));
    gap: 1.5rem;
    justify-content: center;
}

.book-card {
    background-color: var(--color-background-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3), 0 0 20px rgba(232, 146, 45, 0.15);
}

.book-card-image {
    aspect-ratio: 2/3;
    overflow: hidden;
    background-color: var(--color-background);
}

.book-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.book-card:hover .book-card-image img {
    transform: scale(1.05);
}

.book-card-content {
    padding: 0.75rem;
}

.book-card-title {
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 0.35rem;
}

.book-card-tagline {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.book-card-link {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 500;
}

.book-card-link:hover {
    color: var(--color-primary-light);
}

/* ===== Book Detail Page ===== */
.book-detail {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.book-cover {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.book-info h1 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.book-info .subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.book-info .description {
    color: var(--color-text);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.book-info .description p {
    margin-bottom: 1rem;
}

.purchase-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-background);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    color: var(--color-background);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-background);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text-muted);
    margin-top: 1rem;
}

.back-link:hover {
    color: var(--color-primary);
}

/* ===== Contact Page ===== */
.contact-section {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 1rem;
}

.contact-section h1 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.contact-section p {
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-background-light);
    padding: 2rem;
    text-align: center;
    margin-top: auto;
}

.footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

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

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

/* ===== Responsive Design ===== */
@media (max-width: 900px) {
    .book-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 190px));
    }

    .book-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .book-cover {
        max-width: 300px;
        margin: 0 auto;
    }
}

@media (max-width: 600px) {
    .header {
        padding: 1rem;
    }

    .header-content {
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: block;
    }

    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding-top: 1rem;
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--color-background-light);
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .book-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 180px));
        gap: 1rem;
    }

    main {
        padding: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}