/* Base Styles & Variables */
:root {
    /* Color Palette - Dark Mode by default (inspired by Amman template) */
    --background-primary: #0f0f16;
    --background-secondary: #151520;
    --background-tertiary: #1e1e2d;
    --text-color: #f5f5f5;
    --text-color-secondary: #b0b0b0;
    --accent-color: #a94cff;
    --accent-color-light: #c17aff;
    --accent-color-dark: #8a35d9;
    --accent-gradient: linear-gradient(135deg, #a94cff 0%, #f06eff 100%);
    --accent-gradient-hover: linear-gradient(135deg, #8a35d9 0%, #e54fff 100%);
    --card-gradient: linear-gradient(135deg, rgba(30, 30, 45, 0.8) 0%, rgba(20, 20, 35, 0.8) 100%);
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --error-color: #f44336;
    --card-bg: #1a1a25;
    --card-hover: #22222f;
    --border-color: #2a2a3a;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 15px rgba(169, 76, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Mode Variables */
.light-mode {
    --background-primary: #f8f9fa;
    --background-secondary: #f1f3f5;
    --background-tertiary: #e9ecef;
    --text-color: #212529;
    --text-color-secondary: #6c757d;
    --accent-color: #8a35d9;
    --accent-color-light: #a94cff;
    --accent-color-dark: #7a28c9;
    --accent-gradient: linear-gradient(135deg, #8a35d9 0%, #c17aff 100%);
    --accent-gradient-hover: linear-gradient(135deg, #7a28c9 0%, #a94cff 100%);
    --card-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(245, 245, 245, 0.9) 100%);
    --card-bg: #ffffff;
    --card-hover: #f8f9fa;
    --border-color: #dee2e6;
    --shadow-glow: 0 0 15px rgba(138, 53, 217, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background-primary);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-color-light);
}

button {
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    color: var(--text-color-secondary);
    margin-top: -1rem;
    margin-bottom: var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
    gap: 0.5rem;
}

.btn-primary {
    background-image: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-image: var(--accent-gradient-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

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

.btn-secondary:hover {
    background-color: var(--card-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-text {
    background: transparent;
    color: var(--text-color-secondary);
    padding: 0.5rem 1rem;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(15, 15, 22, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-normal);
}

.light-mode .header {
    background-color: rgba(248, 249, 250, 0.8);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-svg {
    height: 40px;
    width: auto;
}

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

.nav-link {
    color: var(--text-color-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-image: var(--accent-gradient);
    border-radius: 2px;
}

.theme-toggle, .menu-toggle {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover, .menu-toggle:hover {
    background-color: var(--background-tertiary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-color);
    transition: transform var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--background-secondary);
    padding: var(--spacing-lg);
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav-link {
    color: var(--text-color);
    font-size: 1.2rem;
    font-weight: 500;
    padding: var(--spacing-md) 0;
    display: block;
    border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    background-color: var(--background-primary);
    background-image: radial-gradient(circle at 10% 20%, rgba(169, 76, 255, 0.1) 0%, transparent 40%),
                      radial-gradient(circle at 90% 80%, rgba(240, 110, 255, 0.1) 0%, transparent 40%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(169, 76, 255, 0.03) 0%, transparent 70%);
    animation: pulse 15s infinite alternate;
    z-index: 0;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero .container {
    position: relative;
    z-index: 5;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(169, 76, 255, 0.2);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-color);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    position: relative;
    z-index: 5;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    z-index: 1;
}

/* Tools Section */
.tools-section {
    background-color: var(--background-secondary);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.tools-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(169, 76, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(240, 110, 255, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    position: relative;
    z-index: 2;
}

.tool-card {
    background-color: var(--card-bg);
    background-image: var(--card-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-image: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-icon {
    width: 60px;
    height: 60px;
    background-image: var(--accent-gradient);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-sm);
}

.tool-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.tool-description {
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: gap var(--transition-fast);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.tool-link:hover {
    gap: 0.75rem;
}

.coming-soon {
    opacity: 0.7;
}

.coming-soon-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--background-tertiary);
    color: var(--text-color-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-md);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Tool Interface */
.tool-interface {
    padding: var(--spacing-xxl) 0;
    min-height: 80vh;
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(169, 76, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(240, 110, 255, 0.03) 0%, transparent 50%);
}

.tool-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
}

.back-button {
    background: transparent;
    border: none;
    color: var(--text-color-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
}

.back-button:hover {
    color: var(--text-color);
}

.tool-interface-title {
    font-size: 1.8rem;
    margin-bottom: 0;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xxl) var(--spacing-xl);
    text-align: center;
    transition: border-color var(--transition-normal), background-color var(--transition-normal);
    margin-bottom: var(--spacing-xl);
    background-image: radial-gradient(circle at center, rgba(169, 76, 255, 0.03) 0%, transparent 70%);
}

.upload-area.drag-over {
    border-color: var(--accent-color);
    background-color: rgba(169, 76, 255, 0.05);
    box-shadow: var(--shadow-glow);
}

.upload-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    text-shadow: var(--shadow-glow);
}

.upload-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.upload-subtitle {
    color: var(--text-color-secondary);
    margin-bottom: var(--spacing-md);
}

.upload-formats {
    color: var(--text-color-secondary);
    font-size: 0.9rem;
    margin-top: var(--spacing-md);
}

/* Tool Controls */
.tool-controls {
    margin-top: var(--spacing-xl);
}

.control-panel {
    background-color: var(--card-bg);
    background-image: var(--card-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.file-preview {
    width: 100px;
    height: 100px;
    background-color: var(--background-tertiary);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.waveform-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        var(--background-tertiary) 0%, 
        var(--card-hover) 20%, 
        var(--background-tertiary) 40%
    );
    background-size: 200% 100%;
    animation: waveform-pulse 2s infinite;
}

@keyframes waveform-pulse {
    0% {
        background-position: 100% 0;
    }
    100% {
        background-position: -100% 0;
    }
}

.file-name {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

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

.control-group {
    margin-bottom: var(--spacing-xl);
}

.control-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.slider {
    flex-grow: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--background-tertiary);
    border-radius: 3px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-image: var(--accent-gradient);
    cursor: pointer;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.slider-value {
    min-width: 50px;
    text-align: right;
    font-weight: 500;
    color: var(--accent-color);
}

.trim-range-container {
    margin-top: var(--spacing-md);
}

.trim-range {
    height: 40px;
    background-color: var(--background-tertiary);
    border-radius: var(--border-radius-md);
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.trim-handle {
    position: absolute;
    top: 0;
    width: 10px;
    height: 100%;
    background-image: var(--accent-gradient);
    cursor: ew-resize;
}

.trim-start {
    left: 0;
    border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
}

.trim-end {
    right: 0;
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

.trim-selection {
    position: absolute;
    top: 0;
    left: 10px;
    right: 10px;
    height: 100%;
    background-color: rgba(169, 76, 255, 0.2);
}

.trim-times {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-color-secondary);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* Progress Bar */
.progress-container {
    margin: var(--spacing-xl) 0;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.progress-status {
    font-weight: 500;
}

.progress-percentage {
    font-weight: 600;
    color: var(--accent-color);
}

.progress-bar {
    height: 8px;
    background-color: var(--background-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.progress-bar-fill {
    height: 100%;
    background-image: var(--accent-gradient);
    border-radius: 4px;
    transition: width var(--transition-normal);
}

/* Results Area */
.results-area {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.result-header {
    margin-bottom: var(--spacing-xl);
}

.result-icon {
    font-size: 3rem;
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 0 15px rgba(76, 175, 80, 0.3);
}

.result-title {
    font-size: 1.8rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.result-file {
    background-color: var(--card-bg);
    background-image: var(--card-gradient);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.result-file-icon {
    width: 50px;
    height: 50px;
    background-image: var(--accent-gradient);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.result-file-info {
    flex-grow: 1;
    text-align: left;
}

.result-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* Features Section */
.features-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-primary);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 30% 20%, rgba(169, 76, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(240, 110, 255, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    position: relative;
    z-index: 2;
}

.feature-card {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-image: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.8rem;
    color: white;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.feature-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--text-color-secondary);
}

/* Footer */
.footer {
    background-color: var(--background-secondary);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 90%, rgba(169, 76, 255, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(240, 110, 255, 0.03) 0%, transparent 40%);
    z-index: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
    position: relative;
    z-index: 2;
}

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

.footer-logo {
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--text-color-secondary);
}

.footer-heading {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    
    text-fill-color: transparent;
}

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

.footer-nav a {
    color: var(--text-color-secondary);
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--text-color);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.newsletter-form input {
    flex-grow: 1;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    background-color: var(--background-tertiary);
    color: var(--text-color);
    font-family: inherit;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--shadow-glow);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 2;
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--background-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-image: var(--accent-gradient);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm), var(--shadow-glow);
}

/* Help Button */
.help-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-image: var(--accent-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
    z-index: 100;
}

.help-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* Modal System */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background-color: var(--card-bg);
    background-image: var(--card-gradient);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 600px;
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

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

.modal-title {
    margin-bottom: 0;
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-color-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.modal-body {
    padding: var(--spacing-lg);
    max-height: 70vh;
    overflow-y: auto;
}

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

/* Audio Player */
.audio-player {
    width: 100%;
}

.player-waveform {
    height: 100px;
    background-color: var(--background-tertiary);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    position: relative;
}

.player-waveform::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(90deg, transparent 0%, rgba(169, 76, 255, 0.1) 50%, transparent 100%);
    background-size: 200% 100%;
    animation: wave-shine 3s infinite linear;
}

@keyframes wave-shine {
    0% {
        background-position: 100% 0;
    }
    100% {
        background-position: -100% 0;
    }
}

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

.player-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-image: var(--accent-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.player-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.player-progress {
    flex-grow: 1;
}

.player-progress-bar {
    height: 6px;
    background-color: var(--background-tertiary);
    border-radius: 3px;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.player-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background-image: var(--accent-gradient);
    border-radius: 3px;
}

.player-times {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-color-secondary);
}

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

/* Responsive Styles */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl) var(--spacing-xxl);
    }
}

@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .tools-grid, .features-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .result-file {
        flex-direction: column;
        text-align: center;
    }
    
    .result-file-info {
        text-align: center;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .tool-interface-title {
        font-size: 1.5rem;
    }
    
    .help-button {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        bottom: 1rem;
        right: 1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Glow effect for elements */
.glow-effect {
    position: relative;
}

.glow-effect::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: radial-gradient(circle at center, rgba(169, 76, 255, 0.3) 0%, transparent 70%);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.glow-effect:hover::after {
    opacity: 1;
}