/* Hero section styles */
.hero-section {
    background-color: var(--secondary-color);
    padding: 4rem 2rem;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 4rem;
}

.hero-left {
    flex: 2;
}

.hero-right {
    flex: 1;
    background-color: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.hero-text h1 {
    font-size: 3.5rem;
    color: var(--text-secondary);
    line-height: 1.2;
    margin-bottom: 3rem;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
}

.hero-features .feature h3 {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.hero-features .feature p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.auth-container {
    max-width: 320px;
    margin: 0 auto;
}

.auth-container h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.auth-container .btn {
    margin-bottom: 1rem;
}

.terms {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 1rem 0;
}

.terms a {
    color: #0066cc;
    text-decoration: none;
}

.terms a:hover {
    text-decoration: underline;
}

.signin-link {
    text-align: center;
    font-size: 0.875rem;
    margin-top: 1rem;
}

.signin-link a {
    color: #16a34a;
    text-decoration: none;
    font-weight: 500;
    margin-left: 0.25rem;
}

.signin-link a:hover {
    text-decoration: underline;
}

/* Features section styles */
.features-section {
    padding: 4rem 2rem;
    background-color: white;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Books section styles */
.books-section {
    padding: 4rem 2rem;
    background-color: white;
}

.books-header {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.books-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.tabs {
    display: flex;
    gap: 1rem;
}

.tab {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: none;
    color: var(--text-muted);
}

.tab.active {
    background-color: var(--primary-color);
    color: white;
}

.books-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 2rem;
}

/* Subscription promo styles */
.subscription-promo {
    padding: 4rem 2rem;
    background-color: var(--secondary-color);
}

.promo-content {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    border-radius: 0.5rem;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4rem;
}

.promo-text {
    flex: 1;
}

.promo-text h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.promo-text h3 i {
    color: var(--primary-color);
}

.promo-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.promo-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Responsive styles */
@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
    }

    .hero-right {
        max-width: 400px;
        margin: 0 auto;
    }

    .hero-features {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .promo-content {
        flex-direction: column;
        text-align: center;
    }

    .promo-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }

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

    .books-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .tabs {
        justify-content: center;
    }

    .promo-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
}