/* CSS Variables for Theme Support */
:root {
    --primary-color: #667eea;
    --primary-dark: #764ba2;
    --secondary-color: #f093fb;
    --background: #ffffff;
    --surface: #f8fafc;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

[data-theme="dark"] {
    --background: #0f172a;
    --surface: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-lg: rgba(0, 0, 0, 0.4);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    transition: all 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-sm) 0;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    margin-right: var(--spacing-xs);
    font-size: 1.8rem;
}

.controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.language-select {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-select:hover {
    border-color: var(--primary-color);
}

.theme-toggle {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

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

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Recorder Section */
.recorder-section {
    margin-bottom: var(--spacing-xl);
}

.recorder-card {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 4px 6px var(--shadow);
    border: 1px solid var(--border);
}

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

.recorder-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
}

.recording-status {
    padding: 0.5rem 1rem;
    background: var(--background);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.recording-status.recording {
    background: var(--error);
    color: white;
    animation: pulse 1.5s infinite;
}

.recorder-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Buttons */
.record-btn, .stop-btn, .play-btn, .upload-btn, .download-btn, .share-btn, .new-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-width: 140px;
    justify-content: center;
}

.record-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.record-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.record-btn.recording {
    background: var(--error);
    animation: pulse 2s infinite;
}

.stop-btn {
    background: var(--error);
    color: white;
}

.stop-btn:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-2px);
}

.play-btn, .upload-btn {
    background: var(--background);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.play-btn:hover:not(:disabled), .upload-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.download-btn {
    background: var(--success);
    color: white;
}

.share-btn {
    background: var(--secondary-color);
    color: white;
}

.new-btn {
    background: var(--background);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* General Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    justify-content: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: 1px solid var(--primary-color);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-dark), #4c63d2);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--surface);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Audio Visualizer */
.audio-visualizer {
    height: 120px;
    background: var(--background);
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    overflow: hidden;
}

#visualizerCanvas {
    width: 100%;
    height: 100%;
    background: transparent;
}

/* Upload Section */
.upload-section {
    margin-top: var(--spacing-lg);
}

.divider {
    text-align: center;
    position: relative;
    margin: var(--spacing-lg) 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border);
}

.divider span {
    background: var(--surface);
    padding: 0 var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.875rem;
    position: relative;
    z-index: 1;
}

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

.upload-info {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

/* Effects Section */
.effects-section {
    margin-bottom: var(--spacing-xl);
}

.effects-section h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.effects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.effect-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.effect-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.effect-card:hover::before {
    left: 100%;
}

.effect-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--shadow-lg);
}

.effect-card.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.effect-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.effect-card.selected .effect-icon {
    color: white;
}

.effect-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.effect-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.effect-card.selected .effect-description {
    color: rgba(255, 255, 255, 0.9);
}

/* Processing Section */
.processing-section {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.processing-card {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid var(--border);
    max-width: 400px;
    width: 100%;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.processing-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.processing-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    animation: progress 3s ease-in-out infinite;
}

/* Results Section */
.results-section {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.results-card {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid var(--border);
    max-width: 600px;
    width: 100%;
    box-shadow: 0 4px 6px var(--shadow);
}

.results-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--success);
}

.audio-player {
    margin: var(--spacing-lg) 0;
}

.audio-player audio {
    width: 100%;
    height: 60px;
    border-radius: var(--border-radius);
}

.results-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-muted);
    margin-top: auto;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    width: 80px;
    height: 80px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

.loading-overlay p {
    color: white;
    font-size: 1.125rem;
    font-weight: 500;
}

/* Animations */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* User Menu */
.user-menu {
    position: relative;
    display: inline-block;
}

.user-button {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.user-button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px var(--shadow-lg);
    min-width: 150px;
    z-index: 1000;
    display: none;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease;
}

.user-dropdown a:last-child {
    border-bottom: none;
}

.user-dropdown a:hover {
    background: var(--background);
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.auth-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.login-btn {
    background: var(--background);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.login-btn:hover {
    background: var(--border);
}

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

.register-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.modal {
    background: var(--surface);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px var(--shadow-lg);
    border: 1px solid var(--border);
}
.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

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

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

/* Auth Forms */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-group input {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input.valid {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.05);
}

.form-group input.valid:focus {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group input.invalid {
    border-color: var(--error);
    background: rgba(239, 68, 68, 0.05);
}

.form-group input.invalid:focus {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.3s ease;
}

.input-hint.valid {
    color: var(--success);
}

.input-hint.invalid {
    color: var(--error);
}

.input-hint i {
    font-size: 0.875rem;
}

.auth-submit-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: var(--spacing-sm);
}

.auth-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.auth-submit-btn:disabled,
.auth-submit-btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    background: var(--text-muted);
    color: white;
}

.auth-submit-btn:disabled:hover,
.auth-submit-btn.disabled:hover {
    transform: none;
    box-shadow: none;
    background: var(--text-muted);
}

.auth-switch {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* Recording Title Input */
.recording-title-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    transition: border-color 0.3s ease;
}

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

/* Dashboard */
.dashboard-section {
    margin-bottom: var(--spacing-xl);
}

.dashboard-section h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.recordings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.recording-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.recording-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.recording-card h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.recording-card .meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.recording-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.recording-actions button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    background: var(--background);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.recording-actions button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Share Content */
.share-content {
    text-align: center;
}

.share-url {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.share-url input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.copy-btn {
    padding: 0.75rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--primary-dark);
}

/* New Landing Page Styles */

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(102, 126, 234, 0.2);
}

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

/* Hero Actions */
.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.hero-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-width: 180px;
    justify-content: center;
}

.hero-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.hero-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.hero-btn.secondary {
    background: var(--background);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

/* Hero Features */
.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.hero-features .feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.hero-features .feature i {
    color: var(--success);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-xl) 0;
    background: var(--surface);
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius-lg);
}

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

.step {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    color: white;
    font-size: 2rem;
    position: relative;
    z-index: 2;
}

.step-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    z-index: 3;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* Why Choose / Features */
.why-choose {
    padding: var(--spacing-xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background: var(--surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 1.5rem;
    color: white;
}

.feature-icon.lightning {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-icon.security {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-icon.languages {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-icon.quality {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* Pricing */
.pricing {
    padding: var(--spacing-xl) 0;
    background: var(--surface);
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius-lg);
}

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

.pricing-card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--shadow-lg);
}

.pricing-card.popular {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
}

.plan-name {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.plan-price {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.plan-price .currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
    vertical-align: top;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
}

.plan-price .period {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.plan-features {
    margin-bottom: var(--spacing-xl);
}

.plan-features .feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.plan-features .feature i {
    color: var(--success);
    font-size: 0.875rem;
}

.plan-button {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    background: var(--background);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.plan-button.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
}

.plan-button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.plan-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: var(--spacing-xl) 0;
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius-lg);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.cta-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    background: white;
    color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.stars {
    color: #fbbf24;
    font-size: 1.125rem;
}

.rating span {
    opacity: 0.9;
    font-size: 0.875rem;
}

/* Footer Updates */
.footer {
    background: #1e293b;
    color: #cbd5e1;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.company-info {
    font-size: 0.875rem;
    opacity: 0.8;
}

.company-info p {
    margin-bottom: 0.25rem;
}

.footer-section h4 {
    color: white;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: var(--spacing-md);
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
}

/* Payment Modal Styles */
.payment-modal {
    max-width: 600px;
    width: 90%;
}

.plan-summary {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.price-display {
    margin: var(--spacing-md) 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price-display .currency,
.price-display .period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.features-summary {
    list-style: none;
    padding: 0;
    text-align: left;
    max-width: 300px;
    margin: 0 auto;
}

.features-summary li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.features-summary i {
    color: var(--success);
    margin-right: var(--spacing-xs);
}

.payment-methods {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.payment-method {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    background: var(--background);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.payment-method:hover {
    border-color: var(--primary-color);
}

.payment-method.active {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
}

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-md);
}

.payment-submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: var(--spacing-lg) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.payment-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.payment-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.payment-security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
}

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

/* Success Modal */
.success-modal {
    max-width: 500px;
    text-align: center;
}

.success-icon {
    font-size: 4rem;
    color: var(--success);
    margin-bottom: var(--spacing-lg);
}

.success-content h2 {
    color: var(--success);
    margin-bottom: var(--spacing-md);
}

.success-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.success-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.success-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.success-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.success-btn.secondary {
    background: var(--background);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

/* Contact Modal */
.contact-info {
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--border-radius);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.contact-item h4 {
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--text-primary);
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact-form select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: 1rem;
}

.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--background);
    color: var(--text-primary);
    font-size: 1rem;
    resize: vertical;
    min-height: 100px;
}

.contact-submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.contact-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Documentation Modal */
.documentation-modal {
    max-width: 700px;
}

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

.doc-section {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.doc-section h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.doc-section h3 i {
    color: var(--primary-color);
}

.doc-section ul {
    list-style: none;
    padding: 0;
}

.doc-section li {
    margin-bottom: var(--spacing-xs);
}

.doc-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    padding: 0.5rem;
    border-radius: var(--border-radius);
}

.doc-section a:hover {
    color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

/* Policy Content */
.policy-content,
.terms-content {
    max-height: 500px;
    overflow-y: auto;
    padding-right: var(--spacing-sm);
}

.policy-content section,
.terms-content section {
    margin-bottom: var(--spacing-lg);
}

.policy-content h3,
.terms-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.policy-content p,
.terms-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.policy-content ul,
.terms-content ul {
    color: var(--text-secondary);
    margin-left: var(--spacing-md);
}

.policy-footer,
.terms-footer {
    border-top: 1px solid var(--border);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

/* Demo Modal Styles */
.demo-modal {
    max-width: 800px;
}

.demo-content p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 1.125rem;
}

.demo-samples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.demo-sample {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
}

.demo-sample:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-lg);
    border-color: var(--primary-color);
}

.demo-sample h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.demo-sample h4 i {
    color: var(--primary-color);
}

.demo-player {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.demo-play-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.demo-play-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.demo-cta {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--border-radius-lg);
    color: white;
}

.demo-cta p {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.demo-start-btn {
    background: white;
    color: var(--primary-color);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.demo-start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .controls {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .auth-buttons {
        order: -1;
    }
    
    .recorder-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .recorder-controls button {
        width: 100%;
        max-width: 280px;
    }
    
    .effects-grid {
        grid-template-columns: 1fr;
    }
    
    .recordings-grid {
        grid-template-columns: 1fr;
    }
    
    .results-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .results-actions button {
        width: 100%;
        max-width: 280px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .modal {
        width: 95%;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: var(--spacing-md);
    }
    
    .modal-body {
        padding: var(--spacing-md);
    }
    
    /* Responsive adjustments for new sections */
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-btn {
        width: 100%;
        max-width: 280px;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .recorder-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .recorder-card {
        padding: var(--spacing-md);
    }
    
    .share-url {
        flex-direction: column;
    }
    
    .hero-features {
        gap: var(--spacing-md);
    }
    
    .cta-actions {
        gap: var(--spacing-md);
    }
}

/* Purchase Modal Styles */
.purchase-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.purchase-features h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.purchase-features ul {
    list-style: none;
    padding: 0;
}

.purchase-features li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.purchase-features li i {
    color: var(--success);
    margin-right: var(--spacing-sm);
    width: 16px;
}

.purchase-pricing {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.price-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.price-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    transform: scale(1.05);
}

.price-card.featured h4,
.price-card.featured .price {
    color: white;
}

.price-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-lg);
}

.price-card.featured:hover {
    transform: scale(1.05) translateY(-2px);
}

.price-card h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    color: var(--text-primary);
}

.price {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.price span {
    font-size: 0.9rem;
    font-weight: normal;
    color: var(--text-muted);
}

.savings {
    background: var(--success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.price-card .btn {
    width: 100%;
    margin-top: var(--spacing-sm);
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

/* Login Prompt Styles */
.modal-body p {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Payment Modal Styles */
.payment-modal {
    max-width: 500px;
    width: 90%;
}

.payment-summary {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.payment-summary h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.price-display {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

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

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

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

.form-group input {
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--background);
    color: var(--text-primary);
}

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

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

.payment-methods {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.payment-method {
    flex: 1;
}

.payment-method input[type="radio"] {
    display: none;
}

.payment-method label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: 2px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--surface);
    color: var(--text-secondary);
}

.payment-method input[type="radio"]:checked + label {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

.payment-method label i {
    font-size: 1.2rem;
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.form-actions .btn {
    flex: 1;
}

/* Mobile Purchase Styles */
@media (max-width: 768px) {
    .purchase-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .price-card.featured {
        transform: none;
    }
    
    .price-card.featured:hover {
        transform: translateY(-2px);
    }
    
    .payment-modal {
        width: 95%;
        margin: var(--spacing-sm);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .payment-methods {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

/* Custom Voice Profile Styles */
.custom-voice-card {
    border: 2px dashed var(--border);
    background: linear-gradient(135deg, var(--surface) 0%, rgba(102, 126, 234, 0.05) 100%);
    transition: all 0.3s ease;
}

.custom-voice-card:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--surface) 0%, rgba(102, 126, 234, 0.1) 100%);
    transform: translateY(-2px);
}

.custom-voice-card.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(102, 126, 234, 0.2) 100%);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
}

.custom-upload {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--background);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.upload-sample-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
}

.upload-sample-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.upload-sample-btn:active {
    transform: translateY(0);
}

/* Demo Modal Styles */
.demo-modal {
    max-width: 800px;
}

.demo-samples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.demo-sample {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.demo-sample h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.demo-player {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.demo-play-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
}

.demo-play-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.demo-cta {
    text-align: center;
    margin-top: 2rem;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.demo-start-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.demo-start-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

/* API Modal Styles */
.api-modal {
    max-width: 900px;
}

.api-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.api-intro {
    text-align: center;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.api-intro h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.api-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.feature-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.api-endpoints {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.api-endpoints h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.endpoint-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.endpoint-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--background);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.method {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.method.post {
    background: #10b981;
    color: white;
}

.method.get {
    background: #3b82f6;
    color: white;
}

.url {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

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

.api-pricing {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.api-pricing h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.pricing-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.tier {
    padding: 1.5rem;
    background: var(--background);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    text-align: center;
}

.tier.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--background) 0%, rgba(102, 126, 234, 0.05) 100%);
}

.tier h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.tier .price span {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.tier ul {
    list-style: none;
    text-align: left;
}

.tier li {
    padding: 0.25rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tier li:before {
    content: "✓";
    color: var(--success);
    font-weight: bold;
    margin-right: 0.5rem;
}

.api-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.api-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.api-btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

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

.api-btn.secondary:hover {
    background: var(--border);
    transform: translateY(-1px);
}

/* Mobile Demo Styles */
@media (max-width: 768px) {
    .demo-samples {
        grid-template-columns: 1fr;
    }
    
    .api-features {
        grid-template-columns: 1fr;
    }
    
    .pricing-tiers {
        grid-template-columns: 1fr;
    }
    
    .endpoint-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        text-align: center;
    }
    
    .api-actions {
        flex-direction: column;
    }
}

/* Profile and Workspace Styles */
.profile-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.profile-form label {
    font-weight: 500;
    color: var(--text-primary);
}

.profile-form input,
.profile-form textarea {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--background);
    color: var(--text-primary);
}

.profile-form input:focus,
.profile-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
}

.avatar-preview {
    margin-top: 0.5rem;
}

.avatar-preview img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
}

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

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

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

.btn.small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn.danger {
    background: #ef4444;
    color: white;
}

.btn.danger:hover {
    background: #dc2626;
}

/* Workspace Styles */
.workspace-modal {
    max-width: 1000px;
}

.workspace-content {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.workspace-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 1rem 1.5rem;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-content {
    flex: 1;
    overflow: hidden;
}

.tab-panel {
    display: none;
    height: 100%;
    overflow-y: auto;
}

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

.recordings-list,
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.recording-item,
.project-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
}

.recording-info,
.project-item h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.recording-info p,
.project-item p {
    margin: 0.25rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.recording-actions,
.project-actions {
    display: flex;
    gap: 0.5rem;
}

.settings-content {
    padding: 1rem 0;
}

.settings-content h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.setting-item {
    display: flex;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.setting-item:last-child {
    border-bottom: none;
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: var(--text-primary);
}

.setting-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.empty-state,
.error-state,
.loading {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.error-state {
    color: #ef4444;
}

/* Profile Actions Grid */
.profile-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.profile-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.profile-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.profile-btn.secondary:hover {
    background: #ef4444;
    color: white;
}

.profile-btn i {
    font-size: 1.2rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .workspace-modal {
        max-width: 95vw;
        margin: 1rem;
    }
    
    .workspace-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1;
        min-width: 120px;
    }
    
    .recording-item,
    .project-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .recording-actions,
    .project-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .profile-actions {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
}