/*
    27 September 2026
    Suryo DwiJayanto
*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #0b0c10;
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
}

.viewport-container {
    position: relative;
    width: 100vw;
    height: 100svh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, #1f2833 0%, #0b0c10 80%);
}

#visualizerCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.controls-bar {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}

.controls-bar:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.1);
}

.btn:hover {
    background: #45f3ff;
    color: #0b0c10;
    transform: scale(1.08);
    box-shadow: 0 0 15px #45f3ff88;
}

.btn-upload {
    padding: 0 18px;
    width: auto;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    gap: 8px;
}

.btn-upload:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
    transform: none;
}

.upload-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.track-info {
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.85rem;
    color: #c5c6c7;
    padding: 0 8px;
}

.btn-settings-toggle {
    position: absolute;
    top: 25px;
    right: 25px;
    z-index: 12;
}

.settings-panel {
    position: absolute;
    top: 80px;
    right: 25px;
    z-index: 12;
    width: 330px;
    background: rgba(15, 18, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 15px 35px rgba(0,0,0,0.6);
}

.settings-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
    font-weight: 600;
    font-size: 1rem;
    color: #45f3ff;
}

/* Tab Navigation di dalam Settings */
.settings-tabs {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 3px;
    gap: 4px;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    color: #a0a5b5;
    padding: 8px 0;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 9px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tab-btn.active {
    background: #45f3ff;
    color: #0b0c10;
    box-shadow: 0 0 12px rgba(69, 243, 255, 0.4);
}

.tab-content {
    display: none;
    flex-direction: column;
    gap: 16px;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.tab-content::-webkit-scrollbar {
    width: 4px;
}
.tab-content::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
}

.tab-content.active {
    display: flex;
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.setting-group label {
    font-size: 0.8rem;
    color: #a0a5b5;
    display: flex;
    justify-content: space-between;
}

.setting-group label span.val {
    color: #45f3ff;
    font-weight: 600;
}

select, input[type="range"] {
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    padding: 8px 12px;
    border-radius: 10px;
    outline: none;
    font-family: inherit;
}

input[type="range"] {
    -webkit-appearance: none;
    height: 6px;
    padding: 0;
    background: rgba(255, 255, 255, 0.15);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #45f3ff;
    cursor: pointer;
    box-shadow: 0 0 10px #45f3ff;
}

.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    background: none;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 2px solid rgba(255,255,255,0.5);
    border-radius: 50%;
}

.subtitle {
    position: absolute;
    top: 25px;
    left: 25px;
    z-index: 10;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    font-weight: 600;
}

@media (max-width: 600px) {
    .controls-bar {
        width: 90%;
        justify-content: space-around;
        padding: 10px 15px;
        bottom: 20px;
    }
    .track-info {
        display: none;
    }
    .settings-panel {
        width: calc(100vw - 40px);
        right: 20px;
    }
    .subtitle {
        font-size: 0.7rem;
    }
}