/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    background-color: var(--dark);
    color: var(--light);
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-md);
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    padding: 0 10px;
}

/* Page Title (for subpages) */
.page-title {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    background-color: var(--dark);
    color: var(--light);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.page-title h1 {
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
}

.page-title p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 10px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: bold;
    transition: all var(--transition-fast);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border: 2px solid transparent;
    font-size: 1rem;
    font-family: inherit;
}

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

.btn-primary:hover {
    background-color: var(--black);
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
}

.btn-secondary {
    background-color: transparent;
    color: var(--light);
    border: 2px solid var(--light);
    margin-left: var(--spacing-md);
}

.btn-secondary:hover {
    background-color: var(--light);
    color: var(--dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.25);
}

/* White/light background variant */
section:not(.hero):not(.starterkit):not(.cta):not(.newsletter) .btn-secondary {
    color: var(--gray-700);
    border-color: var(--gray-500);
}

section:not(.hero):not(.starterkit):not(.cta):not(.newsletter) .btn-secondary:hover {
    background-color: var(--gray-700);
    color: var(--light);
}

/* ==========================================================================
   Sections
   ========================================================================== */

section {
    padding: var(--spacing-xxl) 0;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

section:nth-child(odd) {
    background-color: var(--light);
}

section:nth-child(even) {
    background-color: var(--bg-gray);
}

section h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Explicit section background overrides */
#book {
    background-color: var(--bg-gray);
}

#toc {
    background-color: var(--bg-gray);
}

#author {
    background-color: var(--light);
}

#faq {
    background-color: var(--bg-gray);
}

/* ==========================================================================
   Amazon Rating Badge
   ========================================================================== */

.amazon-rating-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: var(--spacing-lg);
    padding: 0.75rem 1.5rem;
    background-color: var(--light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.rating-stars {
    color: #FF9900;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.rating-text {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.95rem;
}

.rating-count {
    color: var(--text-gray);
    font-size: 0.85rem;
}

@media screen and (max-width: 480px) {
    .amazon-rating-badge {
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.75rem 1rem;
    }
}

/* ==========================================================================
   Book Preview
   ========================================================================== */

.book-preview {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.book-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.book-image img {
    max-width: 100%;
    height: auto;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.book-details {
    flex: 2;
    min-width: 300px;
}

.book-details h3 {
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
}

.price-tag {
    display: inline-block;
    background-color: var(--accent);
    color: var(--black);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: bold;
    margin: var(--spacing-md) 0;
}

/* ==========================================================================
   Features Grid
   ========================================================================== */

.features {
    background-color: var(--bg-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background-color: var(--light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.feature-card h3 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    font-size: 1.1rem;
}

.feature-card h3 span {
    background-color: var(--primary);
    color: var(--light);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-right: var(--spacing-sm);
    flex-shrink: 0;
}

/* ==========================================================================
   Author Section
   ========================================================================== */

.author {
    text-align: center;
}

.author-info {
    max-width: 800px;
    margin: 0 auto;
}

.author-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Reviews Slider
   ========================================================================== */

.reviews {
    background-color: var(--light);
    color: var(--dark);
    position: relative;
    z-index: 1;
}

.reviews h2 {
    color: var(--primary);
}

.reviews-slider-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 40px;
}

.reviews-slider-wrapper {
    overflow: hidden;
    position: relative;
}

.reviews-slider {
    display: flex;
    transition: transform var(--transition-medium);
    margin: 0;
    padding: var(--spacing-md) 0;
}

.review-card {
    flex: 0 0 300px;
    background-color: var(--light);
    color: var(--dark);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-right: 20px;
    box-shadow: var(--shadow-md);
    height: auto;
    display: flex;
    flex-direction: column;
}

.review-stars {
    color: var(--accent);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.review-content {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.review-author {
    font-weight: bold;
    text-align: right;
    margin-top: auto;
}

/* Slider Navigation */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background-color: var(--primary);
    color: var(--light);
    border: none;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    display: flex;
    justify-content: center;
    align-items: center;
}

.slider-arrow:hover {
    opacity: 1;
}

.prev-arrow {
    left: 0;
}

.next-arrow {
    right: 0;
}

.slider-dots {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: rgba(0, 51, 102, 0.3);
    border-radius: 50%;
    margin: 0 5px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

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

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */

.faq {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.5rem;
}

.faq-question {
    background-color: var(--light);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: bold;
    border-left: 4px solid var(--primary);
    position: relative;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    transition: transform var(--transition-fast);
}

.faq-question.active::after {
    content: '-';
}

.faq-answer {
    padding: var(--spacing-md);
    background-color: var(--light);
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    margin-top: var(--spacing-sm);
    display: none;
}

.faq-answer.show {
    display: block;
}

/* ==========================================================================
   Newsletter
   ========================================================================== */

.newsletter {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    background-color: var(--dark);
    color: var(--light);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    border-top: none;
    border-bottom: none;
}

.newsletter h3 {
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.newsletter-subtitle {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.newsletter-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.newsletter-form input[type="email"],
.newsletter-form input[type="text"] {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    font-family: 'Calibri', 'Segoe UI', Arial, sans-serif;
    font-size: 1rem;
}

.newsletter-form button {
    background-color: var(--accent);
    color: var(--black);
    border: none;
    padding: 0 1.5rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    cursor: pointer;
    font-family: 'Calibri', 'Segoe UI', Arial, sans-serif;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    font-size: 1rem;
    min-height: 44px;
}

.newsletter-form button:hover {
    background-color: var(--light);
    color: var(--dark);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta {
    text-align: center;
    padding: var(--spacing-xxl) 0;
    background-color: var(--light);
}

.cta h2 {
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta p {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.cta .btn-primary {
    background-color: var(--accent);
    color: var(--black);
    border-color: var(--black);
}

.cta .btn-primary:hover {
    background-color: var(--black);
    color: var(--accent);
    border-color: var(--accent);
}

/* ==========================================================================
   Newsletter Stacked Form (Homepage)
   ========================================================================== */

.newsletter-form-stacked {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding: 20px;
}

.newsletter-form-stacked .form-group {
    display: flex;
    flex-direction: column;
}

.newsletter-form-stacked label {
    color: var(--light);
    margin-bottom: 5px;
    font-weight: 500;
}

.newsletter-form-stacked input[type="email"],
.newsletter-form-stacked input[type="text"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #6b7280;
    border-radius: 5px;
    font-size: 1rem;
    background-color: white;
    color: var(--dark);
}

.newsletter-form-stacked .input--hidden {
    display: none;
}

.newsletter-form-stacked .form-actions {
    margin-top: 10px;
}

.newsletter-form-stacked .btn {
    min-height: 44px;
}

/* ==========================================================================
   Book Preview Spacing
   ========================================================================== */

.book-preview + .book-preview {
    margin-top: 3rem;
}

/* ==========================================================================
   404 Error Page
   ========================================================================== */

.error-content {
    text-align: center;
    padding: 3rem 0;
}

.error-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* ==========================================================================
   Outline Button (for light backgrounds)
   ========================================================================== */

.btn-outline {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: bold;
    transition: all var(--transition-fast);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 1rem;
    font-family: inherit;
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: var(--light);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.btn-outline i {
    margin-right: 6px;
}

/* ==========================================================================
   Book Buttons Row
   ========================================================================== */

.book-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    margin-top: var(--spacing-md);
}

/* ==========================================================================
   Starterkit Section (Lead-Gen)
   ========================================================================== */

.starterkit {
    background: linear-gradient(135deg, var(--primary) 0%, #004a7c 100%);
    color: var(--light);
    padding: var(--spacing-xxl) 0;
    border-top: none;
    border-bottom: none;
}

.starterkit h2 {
    color: var(--light);
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.starterkit-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.starterkit-badge {
    display: inline-block;
    background-color: var(--accent);
    color: var(--black);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-md);
}

.starterkit-lead {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.starterkit-benefits {
    list-style: none;
    padding: 0;
    margin: 0;
}

.starterkit-benefits li {
    padding: var(--spacing-sm) 0;
    font-size: 1.05rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.starterkit-benefits i {
    color: var(--accent);
    font-size: 1.1rem;
    margin-top: 3px;
    flex-shrink: 0;
}

.starterkit-form-wrapper {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.starterkit-form .form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
}

.starterkit-form label {
    color: var(--light);
    margin-bottom: 5px;
    font-weight: 500;
    font-size: 0.95rem;
}

.starterkit-form input[type="email"],
.starterkit-form input[type="text"] {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--dark);
    transition: border-color var(--transition-fast);
}

.starterkit-form input:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 204, 0, 0.3);
}

.starterkit-form .input--hidden {
    display: none;
}

.starterkit-form .btn {
    width: 100%;
    margin-top: var(--spacing-sm);
    font-size: 1.1rem;
    padding: 0.9rem 2rem;
}

.starterkit-privacy {
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-md);
    margin-bottom: 0;
}

.starterkit-privacy a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
}

@media screen and (max-width: 768px) {
    .starterkit-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .starterkit h2 {
        text-align: center;
    }

    .starterkit-text {
        text-align: center;
    }

    .starterkit-benefits li {
        justify-content: center;
        text-align: left;
    }

    .starterkit-form-wrapper {
        padding: var(--spacing-lg);
    }

    .book-buttons {
        justify-content: center;
    }
}

@media screen and (max-width: 480px) {
    .book-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .book-buttons .btn {
        text-align: center;
    }
}

/* ==========================================================================
   Telegram Banner
   ========================================================================== */

.telegram-banner {
    background: linear-gradient(135deg, #0088cc 0%, #006699 100%);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.telegram-banner .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.telegram-banner-text {
    color: var(--light);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.telegram-banner-text i {
    font-size: 2rem;
}

.telegram-banner-text h3 {
    color: var(--light);
    margin: 0;
    font-size: 1.1rem;
}

.telegram-banner-text p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0.25rem 0 0;
    font-size: 0.95rem;
}

.telegram-banner .btn {
    background: var(--light);
    color: #0088cc;
    border: none;
    font-weight: 700;
    white-space: nowrap;
}

.telegram-banner .btn:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

@media screen and (max-width: 600px) {
    .telegram-banner .container {
        flex-direction: column;
        text-align: center;
    }

    .telegram-banner-text {
        flex-direction: column;
    }
}