:root {
    /* Dark Romance Color Palette */
    --color-bg-dark: #0a0a0f;
    --color-bg-secondary: #16161f;
    --color-bg-tertiary: #1e1e2e;

    --color-purple-deep: #2d1b3d;
    --color-purple-medium: #4a2c5f;
    --color-purple-light: #6b4c8a;
    --color-purple-accent: #8b5cf6;

    --color-red-deep: #4a0e1f;
    --color-red-medium: #7d1f3d;
    --color-red-accent: #d946ef;

    --color-text-primary: #f8f8ff;
    --color-text-secondary: #c7c7e2;
    --color-text-muted: #8b8ba3;

    --color-accent-gradient: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%);
    --color-glass-bg: rgba(255, 255, 255, 0.05);
    --color-glass-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-serif: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.3);
}

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

body {
    font-family: var(--font-body);
    background: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, var(--color-purple-deep) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--color-red-deep) 0%, transparent 50%);
    opacity: 0.4;
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
}

.icon-button {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-primary);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.icon-button:hover {
    background: var(--color-glass-border);
    border-color: var(--color-purple-accent);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    margin-bottom: var(--spacing-xl);
}

.hero-content {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
}

/* Author Section */
.author-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-glass-border);
}

.author-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid transparent;
    background: var(--color-accent-gradient);
    padding: 3px;
    object-fit: cover;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.author-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.author-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.author-tagline {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-style: italic;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Form Styles */
.story-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-primary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-purple-accent);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-group small {
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.form-group small a {
    color: var(--color-purple-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.form-group small a:hover {
    color: var(--color-red-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Buttons */
.button {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    justify-content: center;
}

.button-primary {
    background: var(--color-accent-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.button-primary:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-2px);
}

.button-primary:active {
    transform: translateY(0);
}

.button-secondary {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-primary);
    backdrop-filter: blur(10px);
}

.button-secondary:hover {
    background: var(--color-glass-border);
    border-color: var(--color-purple-accent);
}

.button-outline {
    background: transparent;
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-secondary);
}

.button-outline:hover {
    border-color: var(--color-purple-accent);
    color: var(--color-text-primary);
}

.button-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
    width: 100%;
}

.button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Story Section */
.story-section {
    margin-top: var(--spacing-xl);
}

.story-section.hidden {
    display: none;
}

.story-header {
    margin-bottom: var(--spacing-lg);
}

.story-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.story-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.story-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--color-bg-secondary);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-accent-gradient);
    width: 0%;
    transition: width var(--transition-slow);
}

.story-content {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
}

.chapter {
    margin-bottom: var(--spacing-xl);
    animation: fadeIn var(--transition-slow);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chapter-number {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--color-purple-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.chapter-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.chapter-content {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.chapter-content p {
    margin-bottom: var(--spacing-md);
}

/* Loading Indicator */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
}

.loading-indicator.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-glass-border);
    border-top: 3px solid var(--color-purple-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

#loadingText {
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* Settings Panel */
.settings-panel {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 500px;
    height: 100vh;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-glass-border);
    z-index: 1000;
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.settings-panel.open {
    right: 0;
}

.settings-content {
    padding: var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.settings-header h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
}

.settings-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Library Sidebar */
.library-sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-glass-border);
    z-index: 1000;
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.library-sidebar.open {
    left: 0;
}

.library-header {
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-glass-border);
    position: sticky;
    top: 0;
    background: var(--color-bg-secondary);
    z-index: 10;
}

.library-header h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
}

.library-list {
    padding: var(--spacing-md);
}

.library-item {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.library-item:hover {
    background: var(--color-glass-border);
    border-color: var(--color-purple-accent);
    transform: translateX(4px);
}

.library-item-title {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.library-item-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.library-item-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.library-item-actions button {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.empty-library {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

/* Export Dropdown */
.export-dropdown {
    position: relative;
}

.export-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-xs);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    min-width: 150px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    animation: slideDown var(--transition-fast);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.export-menu.hidden {
    display: none;
}

.export-option {
    width: 100%;
    padding: var(--spacing-sm);
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-family: var(--font-body);
    font-size: 0.875rem;
}

.export-option:hover {
    background: var(--color-glass-bg);
    color: var(--color-purple-accent);
}

/* Audio Controls */
.audio-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--color-bg-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-glass-border);
    backdrop-filter: blur(10px);
    margin-left: var(--spacing-md);
}

.icon-button.small {
    width: 32px;
    height: 32px;
    padding: 0;
}

.icon-button.small svg {
    width: 14px;
    height: 14px;
}

.reading-active {
    border-color: var(--color-red-accent);
    box-shadow: 0 0 10px rgba(217, 70, 239, 0.2);
}

.chapter-content p.reading-now {
    color: var(--color-text-primary);
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-sm);
    padding: 0 4px;
    transition: all var(--transition-fast);
}

.audio-divider {
    width: 1px;
    height: 24px;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 var(--spacing-sm);
}

.advanced-audio-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.advanced-audio-toggle input {
    accent-color: var(--color-red-accent);
}

.soundscape-select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    padding: 2px 8px;
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.soundscape-select:focus {
    border-color: var(--color-purple-accent);
}

.soundscape-select option {
    background: var(--color-bg);
    color: var(--color-text-primary);
}


/* Responsive Design */
@media (max-width: 768px) {
    .author-section {
        gap: var(--spacing-sm);
    }

    .author-image {
        width: 60px;
        height: 60px;
    }

    .author-name {
        font-size: 1.25rem;
    }

    .hero-title {
        font-size: 2rem;
    }

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

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

    .story-meta {
        flex-direction: column;
    }

    .story-title {
        font-size: 1.75rem;
    }

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

    .chapter-content {
        font-size: 1rem;
    }

    .settings-panel,
    .library-sidebar {
        max-width: 100%;
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

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

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

/* Book Cover Styles */
.book-cover-container {
    margin-bottom: var(--spacing-xl);
    animation: fadeIn var(--transition-slow);
}

.book-cover-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.book-cover-image {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.book-cover-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(139, 92, 246, 0.5);
}

.book-cover-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.button-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.button-small svg {
    width: 16px;
    height: 16px;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-heavy);
    border: 1px solid var(--color-border);
}

.synopsis-modal {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-bg-card);
    z-index: 1;
}

.modal-header h2 {
    font-family: var(--font-display);
    color: var(--color-primary);
    margin: 0;
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-hint {
    color: var(--color-text-secondary);
    font-size: 0.9em;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

.modal-body .form-group {
    margin-bottom: var(--spacing-md);
}

.modal-body textarea {
    min-height: 80px;
    resize: vertical;
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    position: sticky;
    bottom: 0;
    background: var(--color-bg-card);
}

.modal-footer .button {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

@media (max-width: 600px) {
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .button {
        width: 100%;
        justify-content: center;
    }
}