:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --border: #e5e7eb;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary {
    background: var(--gradient);
    color: white !important;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: var(--gradient);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.btn-hero {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 1rem 2.5rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.hero-stats {
    margin-top: 2rem;
    font-size: 1.1rem;
}

/* Process Section */
.process {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 3rem;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
}

.process-step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.process-step p {
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 5rem 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    text-align: center;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-light);
}

/* Pricing Section */
.pricing {
    padding: 5rem 0;
    background: var(--bg-light);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    position: relative;
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: scale(1.05);
}

.pricing-card.featured {
    border: 3px solid var(--primary);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 0.4rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1.2rem;
    color: var(--text-light);
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
}

.btn-pricing {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 2px solid var(--primary);
    color: var(--primary);
    transition: all 0.3s;
}

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

.btn-pricing.primary {
    background: var(--gradient);
    border: none;
    color: white;
}

/* FAQ Section */
.faq {
    padding: 5rem 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.faq-item h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

.faq-item p {
    color: var(--text-light);
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background: var(--gradient);
    text-align: center;
    color: white;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

/* Dashboard */
.dashboard-hero {
    background: var(--gradient);
    color: white;
    padding: 3rem 0;
}

.user-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.profile-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid white;
    object-fit: cover;
}

.dashboard-content {
    padding: 3rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 1rem 0;
}

.referral-code {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--bg-light);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-family: monospace;
}

.upgrade-banner {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 3rem;
}

.banner-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn-secondary {
    background: white;
    color: var(--primary);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.action-card {
    background: var(--bg-light);
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 3rem;
}

.books-section {
    margin-top: 3rem;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.book-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.book-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 1rem 0;
}

.status-completed {
    background: #10b981;
    color: white;
}

.status-generating {
    background: #f59e0b;
    color: white;
}

.status-pending {
    background: #6b7280;
    color: white;
}

.btn-download {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    margin-top: 1rem;
}

.empty-state {
    text-align: center;
    color: var(--text-light);
    padding: 3rem;
}

/* Generate Page */
.generate-hero {
    background: var(--gradient);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.generate-content {
    padding: 3rem 0;
}

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

.credit-info {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
}

.credit-badge {
    background: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.credit-badge.unlimited {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.badge-icon {
    font-size: 2rem;
    font-weight: 800;
}

.generate-form {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-size: 1rem;
    transition: border 0.3s;
}

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.form-actions {
    margin-top: 3rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-generate {
    background: var(--gradient);
    color: white;
    padding: 1.5rem 3rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-generate small {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.9;
}

.btn-cancel {
    background: var(--bg-light);
    color: var(--text);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.generation-info {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.generation-info h4 {
    margin-bottom: 1rem;
}

.generation-info ul {
    list-style: none;
    padding: 0;
}

.generation-info li {
    padding: 0.5rem 0;
    font-size: 0.95rem;
}

.no-credits {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
}

.no-credits-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Flash Messages */
.flash-messages {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1000;
    max-width: 400px;
}

.flash {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.flash.success {
    border-left: 4px solid #10b981;
}

.flash.error {
    border-left: 4px solid #ef4444;
}

.flash.info {
    border-left: 4px solid #3b82f6;
}

/* Upgrade Page */
.upgrade-hero {
    background: var(--gradient);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.upgrade-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.plan-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: relative;
}

.plan-card.pro {
    border: 3px solid var(--primary);
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--bg-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.plan-badge.popular {
    background: var(--gradient);
    color: white;
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 1.5rem 0;
}

.plan-price span {
    font-size: 1.5rem;
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
}

.plan-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--bg-light);
}

.btn-upgrade {
    background: var(--gradient);
    color: white;
    padding: 1.25rem 2.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: transform 0.3s;
}

.btn-upgrade:hover {
    transform: translateY(-2px);
}

.upgrade-benefits {
    margin: 4rem 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.benefit-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upgrade-faq {
    margin-top: 4rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 1rem;
}

/* Referral Pages */
.referral-hero {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.referral-wrapper {
    max-width: 900px;
    margin: 3rem auto;
}

.gift-box {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    text-align: center;
    margin: 2rem 0;
}

.gift-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-card {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 12px;
}

.btn-referral {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 1.5rem 3rem;
    border-radius: 12px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 2rem 0;
}

.referral-note {
    color: var(--text-light);
    margin-top: 1rem;
}

.stats-row {
    display: flex;
    justify-content: space-around;
    gap: 2rem;
    margin: 2rem 0;
}

.stat-item {
    text-align: center;
}

.stat-item strong {
    display: block;
    font-size: 2rem;
    color: var(--primary);
}

/* Referral Dashboard */
.referral-share-box {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    margin-bottom: 3rem;
}

.share-link-container {
    display: flex;
    gap: 1rem;
    margin: 1.5rem 0;
}

.share-link-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--bg-light);
    border-radius: 8px;
    font-family: monospace;
}

.btn-copy {
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.share-code {
    text-align: center;
    font-size: 1.2rem;
}

.referral-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card.success {
    border-left: 4px solid #10b981;
}

.stat-card.pending {
    border-left: 4px solid #f59e0b;
}

.stat-card.bonus {
    border-left: 4px solid var(--primary);
}

.rewards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.reward-step {
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 1rem;
}

.referral-table {
    width: 100%;
    background: white;
    border-radius: 12px;
    overflow: hidden;
}

.referral-table thead {
    background: var(--bg-light);
}

.referral-table th,
.referral-table td {
    padding: 1rem;
    text-align: left;
}

.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.status-badge.status-completed {
    background: #10b981;
    color: white;
}

.status-badge.status-pending {
    background: #f59e0b;
    color: white;
}

.bonus-badge {
    color: #10b981;
    font-weight: 600;
}

.bonus-pending {
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    /* Navigation */
    .navbar {
        padding: 0.75rem 0;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .nav-links {
        gap: 0.5rem;
        font-size: 0.9rem;
        flex-wrap: wrap;
    }
    
    .btn-primary {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    /* Hero Section */
    .hero {
        padding: 3rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-hero {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        width: 100%;
        max-width: 300px;
    }
    
    .hero-stats {
        font-size: 1rem;
    }
    
    /* Sections */
    .section-title {
        font-size: 1.8rem;
    }
    
    .process, .features, .pricing, .faq, .cta {
        padding: 3rem 0;
    }
    
    /* Grid Layouts */
    .process-steps,
    .feature-grid,
    .pricing-cards,
    .faq-grid,
    .stats-grid,
    .books-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .process-step,
    .feature-card,
    .pricing-card,
    .faq-item,
    .stat-card,
    .book-card {
        padding: 1.5rem;
    }
    
    /* Dashboard */
    .dashboard-hero {
        padding: 2rem 0;
    }
    
    .user-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .profile-image {
        width: 60px;
        height: 60px;
    }
    
    .dashboard-content {
        padding: 2rem 0;
    }
    
    .stat-value {
        font-size: 2.5rem;
    }
    
    .referral-code {
        font-size: 1.2rem;
        padding: 0.8rem;
        word-break: break-all;
    }
    
    /* Actions & Banners */
    .upgrade-banner,
    .action-card {
        padding: 2rem 1.5rem;
        margin-bottom: 2rem;
    }
    
    .banner-actions,
    .form-actions,
    .no-credits-actions {
        flex-direction: column;
        gap: 0.8rem;
    }
    
    .btn-secondary,
    .btn-generate,
    .btn-cancel {
        width: 100%;
    }
    
    /* Generate Form */
    .generate-hero {
        padding: 2rem 0;
    }
    
    .generate-content {
        padding: 2rem 0;
    }
    
    .generate-form {
        padding: 2rem 1.5rem;
    }
    
    .credit-badge {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .badge-icon {
        font-size: 1.5rem;
    }
    
    /* Bulk Actions */
    .books-section > div:first-child {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start !important;
    }
    
    .btn-bulk-action {
        font-size: 13px;
        padding: 8px 16px;
        width: 100%;
    }
    
    /* Flash Messages */
    .flash-messages {
        top: 70px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .flash {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    /* Pricing & Upgrade */
    .pricing-comparison,
    .plan-card.pro {
        grid-template-columns: 1fr;
        transform: scale(1);
    }
    
    .plan-price {
        font-size: 2.5rem;
    }
    
    .btn-upgrade {
        padding: 1rem 2rem;
    }
    
    /* Referral */
    .referral-hero {
        padding: 2.5rem 0;
    }
    
    .gift-box {
        padding: 2rem 1.5rem;
    }
    
    .gift-icon {
        font-size: 4rem;
    }
    
    .share-link-container {
        flex-direction: column;
    }
    
    .share-link-input {
        font-size: 0.9rem;
    }
    
    .stats-row {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    /* Tables */
    .referral-table {
        font-size: 0.9rem;
        display: block;
        overflow-x: auto;
    }
    
    .referral-table th,
    .referral-table td {
        padding: 0.75rem 0.5rem;
    }
    
    /* CTA */
    .cta h2 {
        font-size: 2rem;
    }
    
    .cta p {
        font-size: 1rem;
    }
}

/* Extra Small Devices (iPhone SE, small phones) */
@media (max-width: 400px) {
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .nav-links {
        font-size: 0.8rem;
        gap: 0.3rem;
    }
    
    .btn-primary {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .process-step,
    .book-card,
    .stat-card {
        padding: 1rem;
    }
    
    .generate-form,
    .upgrade-banner,
    .action-card {
        padding: 1.5rem 1rem;
    }
}

/* Bulk-Aktionen */
.btn-bulk-action {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.btn-bulk-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-bulk-action:active {
    transform: translateY(0);
}