/* =========================
   FONTS & ROOT VARIABLES
========================= */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100..900&display=swap');

:root {
    --font-family: "Montserrat", sans-serif;

    /* Background */
    --color-bg-dark: #000000;
    --color-bg-medium: #111111;
    --color-bg-light: #181818;

    /* Text */
    --color-text-primary: #ffffff;
    --color-text-secondary: #d9d9d9;
    --color-text-muted: #b3b3b3;

    /* Buttons */
    --color-btn-primary: #ffffff;
    --color-btn-secondary: #cccccc;

    /* Accents */
    --color-accent-green: #1db954;
    --color-accent-blue: #3498db;
    --color-accent-red: #e74c3c;

    --color-border: rgba(255, 255, 255, 0.1);
    --color-overlay: rgba(255, 255, 255, 0.05);
}

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

/* =========================
   BASE
========================= */
body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-medium), var(--color-bg-light));
    color: var(--color-text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* =========================
   HEADER
========================= */
.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(18, 18, 18, 0.6);
    border-radius: 15px;
    backdrop-filter: blur(12px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.header h1 {
    font-size: 22px;
    font-weight: 500;
}

/* =========================
   LAYOUT
========================= */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.section {
    background: rgba(18, 18, 18, 0.6);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(12px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.section h2 {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    font-size: 1.4em;
    font-weight: 300;
}

/* =========================
   PLAYER
========================= */
.player {
    grid-column: span 2;
    text-align: center;
    margin-bottom: 30px;
}

.current-song {
    margin-bottom: 20px;
    color: var(--color-text-secondary);
}

.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.btn {
    background: none;
    border: none;
    color: var(--color-btn-primary);
    font-size: 24px;
    cursor: pointer;
    transition: 0.3s;
}

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

/* =========================
   PROGRESS BAR
========================= */
.progress-container {
    margin: 20px 0;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--color-border);
    border-radius: 3px;
    cursor: pointer;
}

.progress {
    height: 100%;
    width: 0%;
    background: white;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.9em;
    color: var(--color-text-muted);
}

/* =========================
   SONG LIST
========================= */
.song-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 15px;
}

.song-item {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    margin-bottom: 8px;
    background: var(--color-overlay);
    border-radius: 8px;
    transition: 0.3s;
}

.song-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.song-name {
    font-size: 12px;
}

.small-btn {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 15px;
    border: 1px solid var(--color-border);
}

.add-btn {
    border: 1px solid var(--color-accent-green);
}

.remove-btn {
    border: 1px solid var(--color-accent-red);;
}

/* =========================
   UPLOAD SECTION
========================= */
.upload-section {
    margin-top: 25px;
    padding: 20px;
    background: var(--color-bg-medium);
    border-radius: 10px;
    border: 1px solid var(--color-border);
}

.upload-form-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* file input */
.file-upload {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.file-upload input {
    display: none;
}

.file-upload .btn {
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px solid #3568ef;
    font-size: 14px;
}

.file-name {
    color: #9ca3af;
    font-size: 14px;
}

/* upload button */
.uploadBtn {
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px solid var(--color-accent-green);
    margin-left: 30px;
    font-size: 14px;
}

/* =========================
   STATUS
========================= */
.connection-status {
    position: absolute; /* change from fixed */
    top: 10px;
    right: 10px;

    width: 10px;
    height: 10px;
    border-radius: 50%;

    padding: 0; /* remove padding */
    border: none;

    background: var(--color-accent-red); /* default = disconnected */
}

.connection-status.connected {
    background: var(--color-accent-green);
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 500px) {
    .upload-form-section {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .file-upload {
        width: 100%;
        justify-content: space-between;
    }

    .uploadBtn {
        width: 100%;
        margin-left: 0;
    }
}