/* ==========================================================================
   PROMPTBOOK - AI Ebook Generator Styles
   Dark Theme matching The Prompt Index
   ========================================================================== */

/* ==========================================================================
   1. CSS VARIABLES (Inherited from main site)
   ========================================================================== */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-primary: #a78bfa;

    /* Dark theme colors */
    --bg-primary: #0D0C1D;
    --bg-secondary: #1A1A2E;
    --bg-tertiary: #16213E;
    --surface-glass: rgba(255, 255, 255, 0.05);
    --surface-glass-hover: rgba(255, 255, 255, 0.08);

    /* Text colors */
    --text-primary: #FFFFFF;
    --text-secondary: #9CA3AF;
    --text-tertiary: #6B7280;
    --text-headings: #E5E7EB;

    /* Borders */
    --border-glass: rgba(255, 255, 255, 0.1);
    --border-glass-hover: rgba(255, 255, 255, 0.2);

    /* Status colors */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   2. LANDING PAGE (Non-logged in)
   ========================================================================== */
.landing-page {
    min-height: 100vh;
}

.hero-section {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    opacity: 0.15;
    filter: blur(100px);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.beta-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    border-radius: 0.25rem;
    margin-left: 0.5rem;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
    animation: beta-pulse 2s ease-in-out infinite;
}

@keyframes beta-pulse {
    0%, 100% {
        box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
    }
    50% {
        box-shadow: 0 2px 16px rgba(245, 158, 11, 0.5);
    }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

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

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    border-radius: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-speed);
}

.btn-hero-secondary:hover {
    background: var(--surface-glass-hover);
    border-color: var(--border-glass-hover);
    color: var(--text-primary);
}

.hero-trust {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.trust-item i {
    color: var(--success-color);
}

/* Features Section */
.features-section,
.capabilities-section {
    padding: 5rem 2rem;
}

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

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.75rem;
    color: var(--text-headings);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-speed);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-headings);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Capabilities Grid */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.capability-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    transition: all var(--transition-speed);
}

.capability-item:hover {
    background: var(--surface-glass-hover);
}

.capability-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.capability-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-headings);
}

.capability-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   3. APP CONTAINER (Logged in)
   ========================================================================== */
.app-container {
    min-height: calc(100vh - 4rem);
    background: var(--bg-primary);
}

/* App Header */
.app-header {
    background: var(--surface-glass);
    border-bottom: 1px solid var(--border-glass);
    padding: 0 1.5rem;
    position: sticky;
    top: 64px;
    z-index: 40;
}

.app-header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 2rem;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.app-brand i {
    color: var(--primary-color);
}

.app-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.nav-item:hover {
    background: var(--surface-glass);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--surface-glass);
    color: var(--primary-color);
}

.app-usage {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.usage-value {
    color: var(--text-primary);
    font-weight: 600;
}

.usage-separator {
    margin: 0 0.5rem;
    opacity: 0.5;
}

/* ==========================================================================
   4. VIEW PANELS
   ========================================================================== */
.view-panel {
    display: none;
    padding: 2rem;
}

.view-panel.active {
    display: block;
}

.view-content {
    max-width: 1200px;
    margin: 0 auto;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.view-header h1 {
    font-size: 1.75rem;
    color: var(--text-headings);
}

/* ==========================================================================
   5. BUTTONS
   ========================================================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-secondary:hover {
    background: var(--surface-glass-hover);
    border-color: var(--border-glass-hover);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-outline:hover {
    background: var(--surface-glass);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-icon:hover {
    background: var(--surface-glass-hover);
    color: var(--text-primary);
}

.btn-icon.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error-color);
    color: var(--error-color);
}

/* ==========================================================================
   6. BOOKS GRID
   ========================================================================== */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.book-card {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    overflow: hidden;
    transition: all var(--transition-speed);
}

.book-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.book-cover {
    height: 200px;
    background: var(--bg-tertiary);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-cover i {
    font-size: 3rem;
    color: var(--text-tertiary);
}

.book-info {
    padding: 1.25rem;
}

.book-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-headings);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-subtitle {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
}

.book-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
}

.book-meta i {
    margin-right: 0.25rem;
}

.book-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.status-draft {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.status-generating {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.status-complete {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.book-actions {
    display: flex;
    gap: 0.5rem;
    padding: 0 1.25rem 1.25rem;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.empty-icon {
    width: 80px;
    height: 80px;
    background: var(--surface-glass);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-tertiary);
    margin-bottom: 1.5rem;
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--text-headings);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   7. WIZARD
   ========================================================================== */
.wizard-container {
    max-width: 800px;
    margin: 0 auto;
}

/* Step Indicators */
.wizard-steps {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.wizard-step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 2rem;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    transition: all var(--transition-speed);
}

.wizard-step.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.wizard-step.completed {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.step-number {
    width: 24px;
    height: 24px;
    background: var(--border-glass);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.75rem;
}

.wizard-step.active .step-number {
    background: var(--primary-color);
    color: white;
}

.wizard-step.completed .step-number {
    background: var(--success-color);
    color: white;
}

/* Wizard Panels */
.wizard-panel {
    display: none;
}

.wizard-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.wizard-panel h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-headings);
}

.wizard-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.wizard-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-glass);
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group label .required {
    color: var(--error-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--bg-secondary);
}

.form-group select option:disabled {
    color: var(--text-tertiary);
}

.char-count {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-align: right;
}

/* ==========================================================================
   8. SOURCES
   ========================================================================== */
.source-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.source-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.source-tab:hover {
    background: var(--surface-glass-hover);
}

.source-tab.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.source-panel {
    display: none;
    padding: 1.5rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
}

.source-panel.active {
    display: block;
}

.source-panel textarea {
    width: 100%;
    min-height: 150px;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    color: var(--text-primary);
    resize: vertical;
    margin-bottom: 1rem;
}

.source-panel textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border-glass);
    border-radius: 0.75rem;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.upload-zone i {
    font-size: 2.5rem;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.upload-zone p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.upload-hint {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* URL Input */
.url-input-group {
    display: flex;
    gap: 0.75rem;
}

.url-input-group input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    color: var(--text-primary);
}

.url-input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Sources List */
.sources-list {
    margin-top: 1.5rem;
}

.sources-list h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.sources-items {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.no-sources {
    color: var(--text-tertiary);
    font-style: italic;
}

.source-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
}

.source-icon {
    width: 36px;
    height: 36px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.source-info {
    flex: 1;
}

.source-label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.source-chars {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ==========================================================================
   9. OUTLINE
   ========================================================================== */
.outline-container {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    padding: 2rem;
}

.outline-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
}

.outline-header h3 {
    font-size: 1.25rem;
    color: var(--text-headings);
    margin-bottom: 0.5rem;
}

.outline-summary {
    color: var(--text-secondary);
    line-height: 1.6;
}

.outline-chapters {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.outline-chapter {
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
}

.chapter-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.chapter-num {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
    white-space: nowrap;
}

.chapter-title-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.375rem;
    color: var(--text-primary);
    font-weight: 500;
}

.chapter-title-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chapter-synopsis {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.chapter-points {
    margin: 0;
    padding-left: 1.25rem;
}

.chapter-points li {
    color: var(--text-tertiary);
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
}

/* ==========================================================================
   10. GENERATION STATUS
   ========================================================================== */
.generation-status {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.progress-ring {
    position: relative;
    width: 150px;
    height: 150px;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--border-glass);
    stroke-width: 8;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 0.5s ease;
}

.progress-percent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.generation-info {
    text-align: center;
}

.generation-info h4 {
    font-size: 1.25rem;
    color: var(--text-headings);
    margin-bottom: 0.5rem;
}

.generation-info p {
    color: var(--text-secondary);
}

.generation-chapters {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
}

.gen-chapter {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    transition: all var(--transition-speed);
}

.gen-chapter.generating {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.gen-chapter.complete {
    border-color: var(--success-color);
}

.gen-chapter-status {
    width: 24px;
    color: var(--text-tertiary);
}

.gen-chapter.generating .gen-chapter-status {
    color: var(--primary-color);
}

.gen-chapter.complete .gen-chapter-status {
    color: var(--success-color);
}

.gen-chapter-title {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================================================
   11. EDITOR
   ========================================================================== */
.editor-layout {
    display: grid;
    grid-template-columns: 280px 1fr 200px;
    gap: 0;
    height: calc(100vh - 120px);
    margin: -2rem;
}

.editor-sidebar {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
}

.sidebar-header h3 {
    font-size: 1rem;
    color: var(--text-headings);
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.book-stats i {
    margin-right: 0.25rem;
}

.chapter-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.chapter-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem;
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-speed);
    margin-bottom: 0.25rem;
}

.chapter-nav-item:hover {
    background: var(--surface-glass);
}

.chapter-nav-item.active {
    background: rgba(99, 102, 241, 0.1);
}

.chapter-nav-num {
    width: 28px;
    height: 28px;
    background: var(--surface-glass);
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.chapter-nav-item.active .chapter-nav-num {
    background: var(--primary-color);
    color: white;
}

.chapter-nav-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chapter-nav-item.active .chapter-nav-title {
    color: var(--text-primary);
}

.sidebar-actions {
    padding: 1rem;
    border-top: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-actions .btn-outline {
    width: 100%;
    justify-content: center;
    padding: 0.625rem 1rem;
    font-size: 0.85rem;
}

.back-to-books {
    margin: 0.5rem 1rem 1rem;
    width: calc(100% - 2rem);
    justify-content: center;
}

/* Editor Main */
.editor-main {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    background: var(--surface-glass);
}

.chapter-title-edit {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.chapter-number {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color);
}

#editorChapterTitle {
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.375rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    min-width: 300px;
}

#editorChapterTitle:focus {
    outline: none;
    border-color: var(--primary-color);
}

.toolbar-actions {
    display: flex;
    gap: 0.5rem;
}

.editor-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

#chapterContent {
    width: 100%;
    height: 100%;
    min-height: 400px;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.8;
    resize: none;
    font-family: 'Georgia', serif;
}

#chapterContent:focus {
    outline: none;
    border-color: var(--primary-color);
}

.editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-glass);
    background: var(--surface-glass);
}

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

.save-status {
    font-size: 0.85rem;
    color: var(--success-color);
}

.save-status.unsaved {
    color: var(--warning-color);
}

/* Cover Sidebar */
.cover-sidebar {
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-glass);
    padding: 1.5rem;
}

.cover-sidebar h4 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.cover-preview {
    aspect-ratio: 2/3;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.5rem;
    overflow: hidden;
}

.cover-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-cover {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
}

.no-cover i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.no-cover p {
    font-size: 0.8rem;
}

/* ==========================================================================
   12. PROGRESS OVERLAY
   ========================================================================== */
.progress-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.progress-overlay.show {
    opacity: 1;
    visibility: visible;
}

.progress-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    max-width: 400px;
    width: 90%;
}

.progress-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-glass);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.progress-title {
    font-size: 1.25rem;
    color: var(--text-headings);
    margin-bottom: 0.5rem;
}

.progress-message {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.progress-bar-container {
    height: 4px;
    background: var(--border-glass);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-detail {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: 0.75rem;
}

/* ==========================================================================
   13. CONSENT MODAL
   ========================================================================== */
.consent-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.consent-overlay.show {
    opacity: 1;
    visibility: visible;
}

.consent-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    overflow: hidden;
}

.consent-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    background: var(--surface-glass);
}

.consent-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    color: var(--text-headings);
    margin: 0;
}

.consent-header i {
    color: var(--primary-color);
}

.consent-body {
    padding: 1.5rem;
}

.consent-info-card {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.consent-info-card h4 {
    font-size: 0.9rem;
    color: var(--text-headings);
    margin-bottom: 1rem;
}

.consent-info-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.consent-info-card li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.consent-info-card li:last-child {
    margin-bottom: 0;
}

.consent-info-card li i {
    color: var(--primary-color);
    margin-top: 0.125rem;
}

.consent-legal {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}

.consent-legal a {
    color: var(--primary-color);
}

.consent-checkbox-wrapper {
    padding: 0 1.5rem;
    margin-bottom: 1.5rem;
}

.consent-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.consent-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.consent-actions {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-glass);
    background: var(--surface-glass);
}

.consent-actions button {
    flex: 1;
}

/* ==========================================================================
   14. TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1002;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    border-color: var(--success-color);
}

.toast-success i {
    color: var(--success-color);
}

.toast-error {
    border-color: var(--error-color);
}

.toast-error i {
    color: var(--error-color);
}

.toast-warning {
    border-color: var(--warning-color);
}

.toast-warning i {
    color: var(--warning-color);
}

/* ==========================================================================
   15. RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
    .editor-layout {
        grid-template-columns: 250px 1fr;
    }

    .cover-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .app-header-content {
        flex-wrap: wrap;
        height: auto;
        padding: 0.75rem 0;
        gap: 0.75rem;
    }

    .app-nav {
        order: 3;
        width: 100%;
    }

    .app-usage {
        order: 2;
    }

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

    .wizard-steps {
        flex-wrap: wrap;
    }

    .step-label {
        display: none;
    }

    .editor-layout {
        grid-template-columns: 1fr;
        height: auto;
    }

    .editor-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-glass);
    }

    .chapter-nav {
        max-height: 200px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-hero-primary,
    .btn-hero-secondary {
        width: 100%;
        justify-content: center;
    }

    .source-tabs {
        flex-wrap: wrap;
    }

    .url-input-group {
        flex-direction: column;
    }

    #editorChapterTitle {
        min-width: auto;
        width: 100%;
    }

    .chapter-title-edit {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        width: 100%;
    }

    .toast-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }

    .toast {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .view-panel {
        padding: 1rem;
    }

    .wizard-container {
        padding: 0;
    }

    .outline-container {
        padding: 1rem;
    }

    .book-card {
        border-radius: 0.75rem;
    }

    .book-cover {
        height: 150px;
    }
}

/* ==========================================================================
   UPGRADE MODAL
   ========================================================================== */

.upgrade-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 1rem;
}

.upgrade-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.upgrade-modal {
    background: var(--bg-secondary);
    border-radius: 1rem;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-glass);
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
}

.upgrade-modal-overlay.show .upgrade-modal {
    transform: scale(1) translateY(0);
}

.upgrade-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2rem;
    height: 2rem;
    border: none;
    background: var(--surface-glass);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 1;
}

.upgrade-modal-close:hover {
    background: var(--surface-glass-hover);
    color: var(--text-primary);
}

.upgrade-modal-header {
    text-align: center;
    padding: 2rem 2rem 1.5rem;
    border-bottom: 1px solid var(--border-glass);
}

.upgrade-modal-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.upgrade-modal-icon.book {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    color: var(--primary-color);
}

.upgrade-modal-icon.image {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(52, 211, 153, 0.2));
    color: var(--success-color);
}

.upgrade-modal-header h2 {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.upgrade-modal-header p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.upgrade-tiers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    padding: 1.5rem;
}

.upgrade-tier {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: 0.75rem;
    padding: 1.5rem;
    position: relative;
    transition: all 0.2s ease;
}

.upgrade-tier:hover {
    border-color: var(--border-glass-hover);
}

.upgrade-tier.recommended {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
}

.upgrade-tier.current {
    opacity: 0.7;
}

.tier-recommended-badge {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tier-badge {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.tier-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tier-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
}

.tier-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-glass);
}

.tier-features li:last-child {
    border-bottom: none;
}

.tier-features li i {
    color: var(--primary-color);
    width: 1rem;
    text-align: center;
}

.tier-features li strong {
    color: var(--text-primary);
}

.tier-current-badge {
    display: block;
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    padding: 0.5rem;
    background: var(--surface-glass);
    border-radius: 0.5rem;
}

.tier-upgrade-btn {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.tier-upgrade-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.tier-upgrade-btn.secondary {
    background: var(--surface-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.tier-upgrade-btn.secondary:hover {
    background: var(--surface-glass-hover);
    box-shadow: none;
}

.upgrade-modal-footer {
    padding: 1rem 1.5rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--border-glass);
}

.upgrade-modal-footer p {
    margin: 0 0 1rem;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.upgrade-modal-footer .btn-secondary {
    padding: 0.5rem 1.5rem;
}

/* Responsive upgrade modal */
@media (max-width: 768px) {
    .upgrade-tiers {
        grid-template-columns: 1fr;
    }

    .upgrade-tier.recommended {
        order: -1;
    }

    .upgrade-modal-header {
        padding: 1.5rem 1rem 1rem;
    }

    .upgrade-modal-header h2 {
        font-size: 1.25rem;
    }
}