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

:root {
    --primary: #ffffff;
    --primary-dark: #cccccc;
    --secondary: #ffffff;
    --accent: #ffffff;
    --danger: #ffffff;
    --success: #ffffff;
    --warning: #ffffff;
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --bg-dark: #000000;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border: #333333;
    --shadow: 0 10px 25px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.5);
    --radius: 8px;
    --radius-lg: 12px;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #000000;
    min-height: 100vh;
    color: #fff;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 1.0);
}

#visualizer-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 40px 30px;
    border-radius: 24px;
    position: relative;
    z-index: 1;
    margin-top: 20px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.header {
    margin-bottom: 40px;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: #fff;
}

.header p {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: 30px;
}

.upload-section {
    margin-bottom: 40px;
    transition: all 0.5s ease;
}

.upload-area {
    border: 2px dashed #cccccc;
    border-radius: 8px;
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
}

.upload-area:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.15);
}

.upload-area.dragover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.upload-icon {
    font-size: 3rem;
    color: #cccccc;
    margin-bottom: 20px;
}

.upload-text h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

.upload-text p {
    color: #cccccc;
    margin-bottom: 20px;
}

.file-input {
    display: none;
}

.upload-btn {
    background: #ffffff;
    color: #000000;
    border: 2px solid #cccccc;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    background: #cccccc;
    border-color: #ffffff;
}

.upload-btn:active {
    background: #999999;
    transform: scale(0.98);
}

/* Main Controls Layout */
.main-controls {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.controls-side {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    order: 1;
}

.effects-side {
    display: flex;
    flex-direction: column;
    order: 2;
}

/* Player Layout - Full Width */
.audio-player {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    margin-bottom: 30px;
}

.control-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.control-title {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 15px;
    color: #fff;
    text-align: right;
}

.slider-container {
    margin-bottom: 20px;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: #cccccc;
    direction: rtl;
}

.value-display {
    background: #ffffff;
    color: #000000;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #cccccc;
    outline: none;
    appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    cursor: pointer;
    border: 2px solid #cccccc;
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #ffffff;
    cursor: pointer;
    border: 2px solid #cccccc;
}

.effects-section {
    margin-bottom: 40px;
}

.effects-title {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 20px;
    color: #fff;
    text-align: right;
}

.effects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    max-width: 700px;
    margin: 0 auto;
}

.effect-btn {
    background: transparent;
    border: 2px solid #ffffff;
    padding: 12px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 500;
    min-height: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.effect-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #cccccc;
    transform: translateY(-1px);
}

.effect-btn.active {
    background: #ffffff;
    border-color: #ffffff;
    color: #000000;
    box-shadow: 0 2px 8px rgba(255, 255, 255, 0.3);
}

.effect-btn i {
    font-size: 1.2rem;
    margin-bottom: 5px;
    display: block;
}

.audio-player {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 100%;
    max-width: 100%;
    margin: 0 auto 50px auto;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: all 0.5s ease;
    opacity: 0;
    transform: translateY(10px);
}

.audio-player.show {
    opacity: 1;
    transform: translateY(0);
}

.audio-info {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    justify-content: center;
}

.audio-icon {
    font-size: 2rem;
    color: #fff;
    margin-left: 15px;
}

.audio-details {
    flex: 1;
    text-align: center;
}

.audio-details h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #fff;
    font-weight: 500;
    text-align: center;
}

.audio-details p {
    color: #cccccc;
    font-size: 0.9rem;
}

.progress-container {
    margin-bottom: 25px;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    border: 2px solid #cccccc;
}

.progress-fill {
    height: 100%;
    background: #ffffff;
    width: 0%;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #cccccc;
    margin-top: 5px;
}

.audio-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    padding: 0 20px;
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid #ffffff;
    background: transparent;
    color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.control-btn:hover {
    background: #ffffff;
    color: #000000;
    transform: scale(1.05);
    box-shadow: 0 3px 10px rgba(255, 255, 255, 0.3);
}

.play-btn {
    width: 60px;
    height: 60px;
    border: 2px solid #ffffff;
    background: #ffffff;
    color: #000000;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4);
}

.play-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.6);
    background: #cccccc;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
}

.action-btn {
    background: #ffffff;
    color: #000000;
    border: 2px solid #ffffff;
    padding: 12px 20px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(255, 255, 255, 0.3);
    text-align: center;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.5);
    background: #cccccc;
}

/* New File Button */
#newFileBtn {
    background: #ffffff;
    color: #000000;
    width: 100%;
    margin: 0;
}

#newFileBtn:hover {
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.4);
}

.action-btn.processing {
    background: #ffffff;
    color: #000000;
    animation: processing 1s ease-in-out infinite;
}

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

.download-btn {
    background: #ffffff;
    color: #000000;
}

.download-btn:hover {
    background: #cccccc;
}

.file-list {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 30px;
}

.file-list-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #fff;
    text-align: right;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    margin-bottom: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.file-icon {
    font-size: 1.5rem;
    color: #fff;
    margin-left: 15px;
}

.file-info h5 {
    font-size: 1rem;
    margin-bottom: 3px;
    color: #fff;
}

.file-info p {
    color: #cccccc;
    font-size: 0.8rem;
}

.file-actions {
    margin-right: auto;
}

.file-action-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
}

.remove-btn {
    background: #ffffff;
    color: #000000;
}

.remove-btn:hover {
    background: #cccccc;
}

.notification {
    position: fixed;
    top: 20px;
    left: 20px;
    background: #ffffff;
    color: #000000;
    padding: 15px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    z-index: 1000;
    transform: translateX(-400px);
    transition: transform 0.3s ease;
    font-size: 0.9rem;
    text-align: right;
}

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

.notification.error {
    background: #ffffff;
    color: #000000;
}

.notification.warning {
    background: #ffffff;
    color: #000000;
}

/* Loading Bar */
.loading-bar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    z-index: 2000;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.loading-progress {
    height: 100%;
    background: #ffffff;
    width: 0%;
    border-radius: 3px;
    transition: width 0.3s ease;
    position: relative;
    box-shadow: 0 0 5px rgba(255, 255, 255, 0.8);
}

.loading-text {
    position: fixed;
    top: 35px;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    font-size: 12px;
    font-weight: 400;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.7);
    z-index: 2000;
    background: rgba(0, 0, 0, 0.3);
    padding: 4px 12px;
    border-radius: 15px;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

@keyframes flash {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header h1 {
        font-size: 2rem;
    }

    .main-controls {
        gap: 30px;
    }

    .controls-side {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .effects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .audio-controls {
        gap: 15px;
    }
}

/* Language Toggle Button */
.language-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #ffffff;
    color: #000000;
    border: 2px solid #000000;
    padding: 10px 15px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.language-toggle-btn:hover {
    background: #000000;
    color: #ffffff;
    border-color: #ffffff;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
}

.language-toggle-btn:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .language-toggle-btn {
        top: 15px;
        right: 15px;
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}


.social-links {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
    margin-top: 70px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.5);
    color: #ffffff;
}

.social-link.linkedin:hover {
    background: #0077b5;
    border-color: #0077b5;
}

.social-link.twitter:hover {
    background: #000000;
    border-color: #ffffff;
}

@media (max-width: 768px) {
    .social-links {
        top: 15px;
        right: 15px;
        margin-top: 60px;
    }

    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .upload-area {
        padding: 40px 20px;
    }

    .upload-icon {
        font-size: 3rem;
    }

    .control-card {
        padding: 15px;
    }

    .controls-side {
        grid-template-columns: 1fr;
    }

    .effects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .audio-player {
        padding: 20px;
    }

    .main-controls {
        gap: 25px;
    }

    .loading-bar {
        width: 90%;
        top: 15px;
    }

    .loading-text {
        top: 30px;
        font-size: 11px;
        padding: 3px 10px;
    }
}


.footer {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.footer p {
    margin: 0;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

@media (max-width: 768px) {
    .footer {
        bottom: 15px;
        padding: 8px 15px;
        font-size: 0.8rem;
    }

    .footer p {
        font-size: 0.8rem;
    }
}