/* ---------- GLOBAL ---------- */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #1f1c2c, #928dab);
    color: #fff;
    transition: background 0.5s ease, color 0.5s ease;
    display: flex;
    flex-direction: column;
}

/* Light Mode */
body.light-mode {
    background: linear-gradient(135deg, #f2eaff, #d2f0ff);
    color: #333;
}

/* ---------- HEADER ---------- */
header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.subheading {
    font-size: 1.2rem;
    color: #ddd;
}

body.light-mode header h1,
body.light-mode .subheading {
    color: #333;
}

/* ---------- CONTROL BUTTONS ---------- */
header .btn {
    border-radius: 50px;
    padding: 8px 16px;
    font-weight: 500;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

header .btn:hover {
    transform: translateY(-2px);
}

header .btn:active {
    transform: scale(0.95);
}

body.light-mode header .btn.btn-outline-light {
    color: #333;
    border-color: #333;
}

body.light-mode header .btn.btn-outline-light:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

/* ---------- DRUM PADS ---------- */
main {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.set {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 25px;
}

.drum {
    font-size: 1.2rem;
    width: 110px;
    height: 110px;
    border-radius: 20px;
    border: none;
    background: #444;
    color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none; 
}

.drum img {
    width: 50px;
    height: 50px;
    margin-bottom: 5px;
    transition: transform 0.2s ease;
}

.drum:hover {
    background: linear-gradient(135deg, #5c5c5c, #6e6e6e);
    transform: translateY(-3px);
}

.drum:active,
.drum.pressed {
    background: linear-gradient(135deg, #ffffff, #dddddd);
    color: #333;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.7);
    transform: scale(0.9);
}

/* Light mode drum */
body.light-mode .drum {
    background-color: #f2eaff;
    color: #333;
    border: 2px solid #ccc;
    box-shadow: 0 4px #ccc;
}

body.light-mode .drum:hover {
    background-color: #e6ddff;
}

body.light-mode .drum.pressed {
    background-color: #d8ccff;
    color: #222;
    box-shadow: 0 0 20px rgba(50, 50, 50, 0.4);
}

/* ---------- FOOTER ---------- */
footer {
    flex-shrink: 0;
    font-size: 0.9rem;
    color: #aaa;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    text-align: center;
}

body.light-mode footer {
    color: #555;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.1);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 768px) {
    .drum {
        width: 90px;
        height: 90px;
    }

    .drum img {
        width: 40px;
        height: 40px;
    }

    header h1 {
        font-size: 2.4rem;
    }

    .subheading {
        font-size: 1rem;
    }

    header .d-flex {
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 10px;
    }

    #volume-slider {
        width: 150px;
    }
}

/* ---------- SMALLER HEADER BUTTONS ---------- */
header .btn {
    font-size: 0.9rem;
    padding: 6px 12px;
    border-radius: 30px;
}

/* ---------- RECORDING INDICATOR ---------- */
.record-indicator {
    font-weight: bold;
    color: #ff4d4d;
    animation: blink 1s infinite;
    font-size: 1rem;
}

@keyframes blink {
    0%, 50%, 100% { opacity: 1; }
    25%, 75% { opacity: 0.4; }
}

body.light-mode .record-indicator {
    color: #cc0000;
}