/* Reset e configurações globais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00d9ff;
    --primary-dark: #00a8cc;
    --primary-light: #80ebff;
    --secondary: #9d4edd;
    --secondary-dark: #7b2cbf;
    --secondary-light: #c77dff;
    --success: #00ff88;
    --success-dark: #00cc6a;
    --warning: #ffaa00;
    --danger: #ff4757;
    --danger-dark: #e63946;
    --dark: #0a0e17;
    --darker: #050811;
    --darkest: #02040a;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-highlight: rgba(255, 255, 255, 0.15);
    --text: #ffffff;
    --text-dim: #a0aec0;
    --text-bright: #e2e8f0;
    --bass-color: #ff6b6b;
    --mid-color: #4ecdc4;
    --treble-color: #ffe66d;
    --binaural-color: #9d4edd;
    --pinknoise-color: #ff85a2;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 50%, #121828 100%);
    font-family: 'Exo 2', 'Segoe UI', sans-serif;
    color: var(--text);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Partículas de fundo */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Overlay de tela preta (modo sono) */
.black-screen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--darkest);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s ease;
}

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

.sleep-mode-info {
    text-align: center;
    padding: 3rem;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 24px;
    border: 1px solid var(--primary);
    box-shadow: 0 0 50px rgba(0, 217, 255, 0.3);
    max-width: 500px;
}

.sleep-mode-info i {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    animation: pulse 2s infinite;
}

.sleep-mode-info h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sleep-mode-info p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-dim);
}

#sleepTimeRemaining {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    color: var(--primary);
    font-weight: bold;
}

.wake-btn {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-family: 'Exo 2', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin: 0 auto;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 217, 255, 0.3);
}

.wake-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 217, 255, 0.5);
}

.wake-btn:active {
    transform: translateY(-1px);
}

/* Container principal do player */
.player-container {
    width: 95%;
    max-width: 1200px;
    margin: 2rem auto;
    position: relative;
    z-index: 1;
}

/* Efeito de vidro com gradiente e sombras */
.player-glass {
    background: linear-gradient(145deg, 
        rgba(16, 22, 36, 0.85) 0%, 
        rgba(10, 14, 23, 0.95) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 32px;
    padding: 2.5rem 3rem;
    border: 1px solid var(--glass-border);
    box-shadow: 
        0 25px 50px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(0, 217, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1),
        inset 0 -1px 0 rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.player-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        var(--primary), 
        var(--secondary),
        transparent);
    z-index: 1;
}

.player-glass::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background: radial-gradient(
        circle at center,
        rgba(0, 217, 255, 0.03) 0%,
        transparent 70%
    );
    z-index: -1;
    animation: rotate 60s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Cabeçalho do player */
.player-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.title-section {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.title-section > div:first-child {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-section i {
    font-size: 2.8rem;
    color: var(--primary);
    filter: drop-shadow(0 0 15px var(--primary));
    animation: pulse 3s infinite alternate;
}

.title-section h1 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 2.8rem;
    letter-spacing: 1.5px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 217, 255, 0.4);
}

.mode-indicators {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.mode-tag {
    padding: 0.4rem 1rem;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    display: none;
}

.mode-tag.active {
    display: inline-block;
}

.visual-indicator {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.vortex {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, 
        var(--bass-color), 
        var(--mid-color),
        var(--treble-color),
        var(--bass-color));
    animation: spin 3s linear infinite;
    position: relative;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

.vortex::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border-radius: 50%;
    background: var(--dark);
}

.audio-mode {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--secondary), var(--secondary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 5px 15px rgba(157, 78, 221, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.audio-mode:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(157, 78, 221, 0.6);
}

/* Visualizador principal */
.main-visualizer {
    position: relative;
    height: 250px;
    margin: 2.5rem 0;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(to bottom, 
        rgba(5, 8, 17, 0.9), 
        rgba(2, 4, 10, 0.95));
    border: 1px solid rgba(0, 217, 255, 0.2);
    box-shadow: 
        inset 0 0 30px rgba(0, 0, 0, 0.7),
        0 15px 40px rgba(0, 0, 0, 0.4);
}

#waveCanvas, #spectrumCanvas, #frequencyCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#waveCanvas {
    z-index: 1;
}

#spectrumCanvas {
    z-index: 2;
    opacity: 0;
    transition: opacity 0.5s ease;
}

#frequencyCanvas {
    z-index: 3;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.spectrum-overlay.active, .frequency-overlay.active {
    opacity: 1;
}

.visualizer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: linear-gradient(to bottom, 
        rgba(10, 14, 23, 0.9) 0%, 
        transparent 30%,
        transparent 70%,
        rgba(10, 14, 23, 0.9) 100%);
    pointer-events: none;
}

.audio-info {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.track-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    color: var(--text-bright);
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.8);
}

.track-progress {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-dim);
}

.progress-dots {
    display: flex;
    gap: 0.5rem;
    flex-grow: 1;
}

.progress-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.progress-dots .dot.active {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
}

.visualizer-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    pointer-events: auto;
}

.viz-btn {
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    color: var(--text-dim);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.viz-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text);
}

.viz-btn.active {
    background: linear-gradient(to right, rgba(0, 217, 255, 0.2), rgba(157, 78, 221, 0.2));
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.2);
}

/* Controles do player */
.player-controls {
    margin: 2.5rem 0;
}

.control-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.playback-mode {
    display: flex;
    gap: 0.8rem;
}

.mode-btn {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    border: none;
    background: var(--glass);
    color: var(--text-dim);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
}

.mode-btn:hover {
    background: rgba(0, 217, 255, 0.1);
    color: var(--text);
    transform: translateY(-2px);
}

.mode-btn.active {
    background: linear-gradient(145deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 5px 15px rgba(0, 217, 255, 0.3);
}

.main-controls {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.control-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    background: var(--glass);
    color: var(--text);
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
    box-shadow: 
        0 5px 15px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.control-btn:hover {
    background: rgba(0, 217, 255, 0.15);
    transform: translateY(-3px);
    box-shadow: 
        0 8px 20px rgba(0, 217, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.control-btn:active {
    transform: translateY(-1px);
}

.play-btn {
    width: 80px;
    height: 80px;
    background: linear-gradient(145deg, var(--primary), var(--primary-dark));
    box-shadow: 
        0 10px 25px rgba(0, 217, 255, 0.3),
        0 0 0 1px rgba(0, 217, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.play-btn:hover {
    background: linear-gradient(145deg, var(--primary-dark), var(--primary));
    box-shadow: 
        0 12px 30px rgba(0, 217, 255, 0.4),
        0 0 0 1px rgba(0, 217, 255, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.volume-btn {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    border: none;
    background: var(--glass);
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    border: 1px solid var(--glass-border);
}

.volume-btn:hover {
    background: rgba(0, 217, 255, 0.1);
    transform: translateY(-2px);
}

.volume-slider-container {
    position: relative;
    width: 120px;
    display: flex;
    align-items: center; /* Isso centraliza o slider verticalmente */
}

.volume-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    position: relative;
    z-index: 2;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid var(--dark);
    box-shadow: 0 0 10px rgba(0, 217, 255, 0.8);
}

.volume-level {
    position: absolute;
    top: 0;
    left: 0;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(to right, var(--secondary), var(--primary));
    width: 80%;
    z-index: 1;
    transition: width 0.1s;
}

/* Barra de progresso */
.progress-container {
    position: relative;
    margin-top: 2rem;
    height: 30px; /* Garante altura suficiente */
    display: flex;
    align-items: center; /* Centraliza verticalmente */
}

.progress-bar {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: transparent;
    outline: none;
    position: relative;
    z-index: 3;
    margin: 0;
    padding: 0;
    vertical-align: middle; /* Alinha verticalmente */
}

.progress-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid var(--dark);
    box-shadow: 
        0 0 15px rgba(0, 217, 255, 0.9),
        0 0 30px rgba(0, 217, 255, 0.4);
    transition: all 0.2s;
    margin-top: -20px; 
}

/* Para Firefox */
.progress-bar::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: 3px solid var(--dark);
    box-shadow: 
        0 0 15px rgba(0, 217, 255, 0.9),
        0 0 30px rgba(0, 217, 255, 0.4);
    transition: all 0.2s;
}

.progress-bar::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 
        0 0 20px rgba(0, 217, 255, 1),
        0 0 40px rgba(0, 217, 255, 0.6);
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 8px;
    border-radius: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    width: 0%;
    z-index: 1;
    transition: width 0.1s;
}

.buffer-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    width: 100%;
    z-index: 0;
}

/* Modos de áudio especializados */
.audio-modes-section {
    margin: 2.5rem 0;
    padding: 1.5rem;
    border-radius: 20px;
    background: linear-gradient(145deg, 
        rgba(10, 14, 23, 0.8), 
        rgba(5, 8, 17, 0.9));
    border: 1px solid var(--glass-border);
    box-shadow: 
        inset 0 1px 0 rgba(255, 255, 255, 0.05),
        0 10px 30px rgba(0, 0, 0, 0.3);
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header i {
    color: var(--primary);
    font-size: 1.8rem;
    margin-right: 1rem;
}

.section-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    font-size: 1.5rem;
    background: linear-gradient(to right, var(--primary), var(--text-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.audio-modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.audio-mode-card {
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.05), 
        rgba(0, 0, 0, 0.2));
    border-radius: 18px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s ease;
    display: flex;
    gap: 1.2rem;
}

.audio-mode-card:hover {
    border-color: rgba(0, 217, 255, 0.3);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

#binauralCard {
    border-left: 4px solid var(--binaural-color);
}

#pinkNoiseCard {
    border-left: 4px solid var(--pinknoise-color);
}

.mode-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

#binauralCard .mode-icon {
    background: linear-gradient(145deg, 
        rgba(157, 78, 221, 0.2), 
        rgba(157, 78, 221, 0.1));
    color: var(--binaural-color);
}

#pinkNoiseCard .mode-icon {
    background: linear-gradient(145deg, 
        rgba(255, 133, 162, 0.2), 
        rgba(255, 133, 162, 0.1));
    color: var(--pinknoise-color);
}

.mode-content {
    flex-grow: 1;
}

.mode-content h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.mode-content p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1.2rem;
    line-height: 1.5;
}

.mode-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.frequency-selector, .intensity-control {
    flex-grow: 1;
}

.frequency-selector label, .intensity-control label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

.frequency-selector select {
    width: 100%;
    padding: 0.6rem 0.8rem;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.frequency-selector select:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.frequency-selector select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.2);
}

.intensity-control {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

#pinkNoiseIntensity {
    flex-grow: 1;
    -webkit-appearance: none;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(to right, 
        rgba(255, 133, 162, 0.3), 
        rgba(255, 133, 162, 0.8));
    outline: none;
}

#pinkNoiseIntensity::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--pinknoise-color);
    cursor: pointer;
    border: 3px solid var(--dark);
    box-shadow: 0 0 10px rgba(255, 133, 162, 0.8);
}

#intensityValue {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
    color: var(--pinknoise-color);
}

.mode-toggle-btn {
    padding: 0.7rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: var(--text);
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.mode-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.mode-toggle-btn.active {
    background: linear-gradient(to right, var(--success), var(--success-dark));
    border-color: var(--success);
    color: white;
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
}

.mode-toggle-btn.active .toggle-text::after {
    content: '✓';
    margin-left: 0.5rem;
}

/* Controle de velocidade e timer de sono */
.speed-sleep-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2.5rem 0;
}

.speed-controls, .sleep-timer-controls {
    padding: 1.5rem;
    border-radius: 20px;
    background: linear-gradient(145deg, 
        rgba(10, 14, 23, 0.8), 
        rgba(5, 8, 17, 0.9));
    border: 1px solid var(--glass-border);
}

.speed-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 14px;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.speed-label {
    font-size: 1rem;
    color: var(--text-dim);
}

.speed-value-display {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: 0 0 15px rgba(0, 217, 255, 0.5);
}

.speed-presets {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.speed-btn {
    padding: 1rem 0.5rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.3s ease;
}

.speed-btn:hover {
    background: rgba(0, 217, 255, 0.1);
    transform: translateY(-5px);
    border-color: rgba(0, 217, 255, 0.3);
}

.speed-btn.active {
    background: linear-gradient(145deg, rgba(0, 217, 255, 0.2), rgba(0, 168, 204, 0.1));
    border-color: var(--primary);
    box-shadow: 
        0 8px 20px rgba(0, 217, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.speed-btn .speed-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.speed-btn .speed-desc {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.custom-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(to right, 
        var(--secondary), 
        var(--primary), 
        var(--success));
    outline: none;
}

.custom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    border: 3px solid var(--dark);
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.8),
        0 0 30px rgba(255, 255, 255, 0.4);
    transition: all 0.2s;
}

.custom-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 
        0 0 20px rgba(255, 255, 255, 1),
        0 0 40px rgba(255, 255, 255, 0.6);
}

/* Timer de sono */
.timer-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.timer-visual {
    position: relative;
    width: 140px;
    height: 140px;
}

.timer-circle {
    width: 140px;
    height: 140px;
    margin: 0 auto 1.5rem;
}

.timer-base {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
}

.timer-progress {
    fill: none;
    stroke: var(--primary);
    stroke-linecap: round;
    stroke-dasharray: 377;
    stroke-dashoffset: 377;
    transform: rotate(-90deg);
    transform-origin: center;
    transition: stroke-dashoffset 1s linear;
}

.timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
    text-align: center;
    width: 100%;
}

.timer-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    width: 100%;
}

/* Botão cancelar com cor diferente */
#cancelTimerBtn {
    background: rgba(255, 71, 87, 0.1);
    border-color: rgba(255, 71, 87, 0.3);
}

#cancelTimerBtn:hover {
    background: rgba(255, 71, 87, 0.2);
}

#cancelTimerBtn .timer-label {
    color: var(--danger);
}


.timer-btn {
    padding: 1rem 0.5rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.3s ease;
}

.timer-btn:hover {
    background: rgba(0, 217, 255, 0.1);
    transform: translateY(-3px);
    border-color: rgba(0, 217, 255, 0.3);
}

.timer-btn.active {
    background: linear-gradient(145deg, rgba(0, 217, 255, 0.2), rgba(0, 168, 204, 0.1));
    border-color: var(--primary);
    box-shadow: 0 5px 15px rgba(0, 217, 255, 0.2);
}

.timer-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    color: var(--text);
}

.timer-desc {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.fadeout-control {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: var(--text);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary);
}

input:checked + .slider:before {
    transform: translateX(30px);
}

.fadeout-label {
    font-size: 0.95rem;
    color: var(--text);
    flex-grow: 1;
}

.sleep-mode-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(to right, 
        rgba(157, 78, 221, 0.8), 
        rgba(157, 78, 221, 0.6));
    border: none;
    border-radius: 14px;
    color: white;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
}

.sleep-mode-btn:hover {
    background: linear-gradient(to right, 
        rgba(157, 78, 221, 0.9), 
        rgba(157, 78, 221, 0.7));
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(157, 78, 221, 0.4);
}

.sleep-mode-btn.active {
    background: linear-gradient(to right, 
        var(--secondary), 
        var(--secondary-dark));
    box-shadow: 0 0 20px rgba(157, 78, 221, 0.6);
}

/* Controle de download e upload */
.download-upload-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2.5rem 0;
}

.download-controls, .upload-controls {
    padding: 1.5rem;
    border-radius: 20px;
    background: linear-gradient(145deg, 
        rgba(10, 14, 23, 0.8), 
        rgba(5, 8, 17, 0.9));
    border: 1px solid var(--glass-border);
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.download-quality, .download-speed {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.download-quality label, .download-speed label {
    font-size: 0.95rem;
    color: var(--text-dim);
}

#downloadQuality {
    padding: 0.7rem 0.8rem;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
}

#currentSpeedDisplay {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
}

.download-main-btn {
    padding: 1rem;
    background: linear-gradient(to right, var(--success), var(--success-dark));
    border: none;
    border-radius: 14px;
    color: white;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    transition: all 0.3s ease;
}

.download-main-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.4);
}

.download-main-btn:active {
    transform: translateY(-1px);
}

.upload-area {
    position: relative;
    border: 2px dashed rgba(0, 255, 136, 0.3);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    background: rgba(0, 255, 136, 0.05);
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--success);
    background: rgba(0, 255, 136, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.1);
}

.upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    font-size: 3rem;
    color: var(--success);
    margin-bottom: 1.2rem;
    opacity: 0.8;
}

.upload-text p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.upload-subtext {
    font-size: 0.9rem !important;
    color: var(--text-dim) !important;
}

.playlist-display {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 14px;
    padding: 1.2rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    max-height: 200px;
    overflow-y: auto;
}

.playlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.playlist-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
}

#playlistCount {
    font-size: 0.9rem;
    color: var(--text-dim);
    font-weight: normal;
}

.clear-playlist-btn {
    padding: 0.5rem 1rem;
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid rgba(255, 71, 87, 0.3);
    border-radius: 10px;
    color: var(--danger);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.clear-playlist-btn:hover {
    background: rgba(255, 71, 87, 0.2);
    transform: translateY(-2px);
}

.playlist-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.playlist-item {
    display: flex;
    align-items: center;
    padding: 0.7rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.playlist-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.playlist-item.active {
    background: linear-gradient(to right, 
        rgba(0, 217, 255, 0.15), 
        rgba(0, 217, 255, 0.1));
    border-left: 3px solid var(--primary);
}

.playlist-item-icon {
    margin-right: 0.8rem;
    color: var(--primary);
}

.playlist-item-name {
    flex-grow: 1;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-item-duration {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-left: 0.8rem;
}

/* Status e informações */
.player-status {
    margin: 2.5rem 0 1.5rem;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.status-card {
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.05), 
        rgba(0, 0, 0, 0.2));
    border-radius: 18px;
    padding: 1.2rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.status-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 0.8rem;
}

.status-header i {
    color: var(--primary);
    font-size: 1.3rem;
}

.status-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-bright);
}

.status-meter {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.meter-bar {
    flex-grow: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    width: 80%;
    background: linear-gradient(to right, var(--secondary), var(--primary));
    border-radius: 4px;
    transition: width 0.5s;
}

.meter-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    min-width: 45px;
}

.spectrum-info {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

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

.freq-label {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.freq-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 700;
}

#bassLevel {
    color: var(--bass-color);
}

#midLevel {
    color: var(--mid-color);
}

#trebleLevel {
    color: var(--treble-color);
}

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

.time-display-large {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px rgba(0, 217, 255, 0.5);
}

.time-label {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.active-modes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.active-mode-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
}

/* Rodapé */
.player-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.player-footer p {
    font-size: 0.9rem;
    color: var(--text-dim);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-btn {
    padding: 0.6rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-dim);
    font-family: 'Exo 2', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.footer-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    transform: translateY(-2px);
}

/* Modal para timer personalizado */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.modal-content {
    background: linear-gradient(145deg, 
        rgba(16, 22, 36, 0.95), 
        rgba(10, 14, 23, 0.98));
    border-radius: 24px;
    width: 90%;
    max-width: 500px;
    border: 1px solid var(--glass-border);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.7),
        0 0 0 1px rgba(0, 217, 255, 0.1);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
}

.modal-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s ease;
}

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

.modal-body {
    padding: 2rem;
}

.time-input {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.time-unit {
    flex: 1;
    text-align: center;
}

.time-unit label {
    display: block;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
    color: var(--text-dim);
}

.time-unit input {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    text-align: center;
    transition: all 0.3s ease;
}

.time-unit input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.2);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

.modal-btn {
    padding: 0.8rem 1.8rem;
    border-radius: 12px;
    font-family: 'Exo 2', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.modal-btn.cancel {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.modal-btn.cancel:hover {
    background: rgba(255, 255, 255, 0.12);
}

.modal-btn.confirm {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    color: white;
}

.modal-btn.confirm:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 217, 255, 0.3);
}

/* Responsividade */
@media (max-width: 1100px) {
    .speed-sleep-section,
    .download-upload-section {
        grid-template-columns: 1fr;
    }
    
    .audio-modes-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .player-glass {
        padding: 1.5rem;
    }
    
    .player-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .visual-indicator {
        align-self: flex-end;
    }
    
    .control-row {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .playback-mode, .main-controls, .volume-control {
        width: 100%;
        justify-content: center;
    }
    
    .speed-presets, .timer-presets {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .status-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .player-container {
        width: 98%;
        margin: 1rem auto;
    }
    
    .player-glass {
        padding: 1.2rem;
        border-radius: 20px;
    }
    
    .title-section h1 {
        font-size: 2rem;
    }
    
    .main-visualizer {
        height: 180px;
    }
    
    .control-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .play-btn {
        width: 70px;
        height: 70px;
    }
    
    .speed-presets, .timer-presets {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .status-grid {
        grid-template-columns: 1fr;
    }
    
    .time-input {
        flex-direction: column;
        gap: 1rem;
    }
}
/* Garantir que os canvases estejam posicionados corretamente */
#waveCanvas, #spectrumCanvas, #frequencyCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Apenas um canvas visível por vez */
#spectrumCanvas, #frequencyCanvas {
    display: none;
}

/* Container do visualizador com posição relativa */
.main-visualizer {
    position: relative;
    overflow: hidden;
}

/* Overlay sempre visível acima dos canvases */
.visualizer-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}

/* Botões do visualizador com pointer-events */
.visualizer-controls {
    pointer-events: auto;
}