/**
 * Animated Piano Keyboard Styles
 */

.piano-container {
    background: var(--surface);
    border-radius: var(--border-radius);
    padding: 30px;
    margin: 30px 0;
    box-shadow: var(--shadow);
}

.piano-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.piano-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
}

.piano-current-chord {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-happy);
    font-family: 'Courier New', monospace;
}

.piano-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.piano-control-btn {
    height: 36px;
    padding: 0 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.piano-control-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.piano-control-btn.paused {
    background: var(--surface-light);
    color: var(--text-primary);
}

.piano-speed-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.piano-speed-select {
    height: 36px;
    padding: 0 12px;
    background: var(--surface-light);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
}

.piano-octave-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-light);
    height: 36px;
    padding: 0 8px;
    border-radius: 6px;
    border: 2px solid var(--primary-color);
}

.piano-octave-btn {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    line-height: 1;
}

.piano-octave-btn:hover {
    background: var(--secondary-color);
    transform: scale(1.1);
}

.piano-octave-btn:active {
    transform: scale(0.95);
}

.piano-octave-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 50px;
    text-align: center;
    font-family: 'Courier New', monospace;
}

.piano-keyboard {
    position: relative;
    height: 200px;
    background: var(--background);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.piano-octave {
    position: relative;
    display: flex;
    height: 160px;
}

.piano-key {
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.piano-key:active {
    transform: translateY(2px);
}

.piano-key.white {
    width: 40px;
    height: 160px;
    background: linear-gradient(to bottom, #ffffff 0%, #f0f0f0 100%);
    border: 2px solid #333;
    border-radius: 0 0 4px 4px;
    margin-right: -1px;
    z-index: 1;
}

.piano-key.white:hover {
    background: linear-gradient(to bottom, #f0f0f0 0%, #e0e0e0 100%);
}

.piano-key.white.active {
    background: linear-gradient(to bottom, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.6);
    transform: translateY(2px);
}

.piano-key.black {
    width: 28px;
    height: 100px;
    background: linear-gradient(to bottom, #1a1a1a 0%, #000000 100%);
    border: 1px solid #000;
    border-radius: 0 0 3px 3px;
    position: absolute;
    z-index: 2;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.piano-key.black:hover {
    background: linear-gradient(to bottom, #333 0%, #111 100%);
}

.piano-key.black.active {
    background: linear-gradient(to bottom, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
    transform: translateY(2px);
}

/* Position black keys using data-key-index */
/* Left octave keys (index 0-6) */
.piano-octave .piano-key.black[data-key-index="0"] { left: 26px !important; }  /* C# */
.piano-octave .piano-key.black[data-key-index="1"] { left: 66px !important; }  /* D# */
.piano-octave .piano-key.black[data-key-index="3"] { left: 146px !important; } /* F# */
.piano-octave .piano-key.black[data-key-index="4"] { left: 186px !important; } /* G# */
.piano-octave .piano-key.black[data-key-index="5"] { left: 226px !important; } /* A# */

/* Right octave keys (index 7-13) - offset by 273px */
.piano-octave .piano-key.black[data-key-index="7"] { left: 299px !important; }  /* C# (273 + 26) */
.piano-octave .piano-key.black[data-key-index="8"] { left: 339px !important; }  /* D# (273 + 66) */
.piano-octave .piano-key.black[data-key-index="10"] { left: 419px !important; } /* F# (273 + 146) */
.piano-octave .piano-key.black[data-key-index="11"] { left: 459px !important; } /* G# (273 + 186) */
.piano-octave .piano-key.black[data-key-index="12"] { left: 499px !important; } /* A# (273 + 226) */

.piano-key-label {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    font-weight: 600;
    color: #666;
    pointer-events: none;
}

.piano-key.white .piano-key-label {
    color: #666;
}

.piano-key.black .piano-key-label {
    color: #999;
    font-size: 0.65rem;
}

.piano-key.active .piano-key-label {
    color: white;
}

.piano-notes-display {
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background: var(--surface-light);
    border-radius: 8px;
}

.piano-notes-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.piano-notes-list {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

.piano-note-item {
    display: inline-block;
    padding: 4px 12px;
    background: var(--surface);
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    transition: all 0.2s ease;
}

.piano-note-item.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.6);
    transform: scale(1.1);
}

.piano-note-item.clicked {
    background: linear-gradient(135deg, var(--accent-happy) 0%, var(--primary-color) 100%);
    color: white;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
    transform: scale(1.15);
}

.piano-note-separator {
    color: var(--text-secondary);
    font-weight: 400;
}

/* Responsive Design */
@media (max-width: 1100px) {
    /* Hide left octave on medium screens, show only right octave */
    .piano-key[data-key-index="0"],
    .piano-key[data-key-index="1"],
    .piano-key[data-key-index="2"],
    .piano-key[data-key-index="3"],
    .piano-key[data-key-index="4"],
    .piano-key[data-key-index="5"],
    .piano-key[data-key-index="6"] {
        display: none !important;
    }

    /* Reposition right octave black keys to start from left when left octave is hidden */
    .piano-octave .piano-key.black[data-key-index="7"] { left: 26px !important; }  /* C# */
    .piano-octave .piano-key.black[data-key-index="8"] { left: 66px !important; }  /* D# */
    .piano-octave .piano-key.black[data-key-index="10"] { left: 146px !important; } /* F# */
    .piano-octave .piano-key.black[data-key-index="11"] { left: 186px !important; } /* G# */
    .piano-octave .piano-key.black[data-key-index="12"] { left: 226px !important; } /* A# */

    /* Single octave width */
    .piano-octave {
        min-width: 320px; /* 8 white keys * 40px */
    }
}

@media (max-width: 768px) {
    .piano-keyboard {
        padding: 10px;
        overflow-x: auto;
    }

    .piano-octave {
        min-width: 280px; /* 8 white keys * 35px = 280px */
    }

    .piano-key.white {
        width: 35px;
        height: 140px;
    }

    .piano-key.black {
        width: 24px;
        height: 90px;
    }

    /* Mobile - 35px per white key - Right octave only (left octave hidden) */
    .piano-octave .piano-key.black[data-key-index="7"] { left: 23px !important; }  /* C# */
    .piano-octave .piano-key.black[data-key-index="8"] { left: 58px !important; }  /* D# */
    .piano-octave .piano-key.black[data-key-index="10"] { left: 128px !important; } /* F# */
    .piano-octave .piano-key.black[data-key-index="11"] { left: 163px !important; } /* G# */
    .piano-octave .piano-key.black[data-key-index="12"] { left: 198px !important; } /* A# */

    .piano-header {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .piano-controls {
        justify-content: center;
        flex-wrap: wrap;
        gap: 6px;
    }

    .piano-control-btn {
        height: 32px;
        padding: 0 10px;
        font-size: 0.8rem;
    }

    .piano-speed-label {
        font-size: 0.8rem;
    }

    .piano-speed-select {
        height: 32px;
        padding: 0 8px;
        font-size: 0.8rem;
    }

    .piano-title {
        font-size: 1.1rem;
    }

    .piano-current-chord {
        font-size: 1.2rem;
    }

    .piano-octave-controls {
        height: 32px;
        gap: 6px;
        padding: 0 6px;
    }

    .piano-octave-btn {
        width: 22px;
        height: 22px;
        font-size: 1rem;
    }

    .piano-octave-label {
        font-size: 0.75rem;
        min-width: 45px;
    }

    .piano-note-item {
        padding: 3px 10px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .piano-octave {
        min-width: 240px; /* 8 white keys * 30px = 240px */
    }

    .piano-key.white {
        width: 30px;
        height: 120px;
    }

    .piano-key.black {
        width: 20px;
        height: 80px;
    }

    .piano-header {
        gap: 8px;
    }

    .piano-controls {
        gap: 4px;
    }

    .piano-control-btn {
        height: 30px;
        padding: 0 8px;
        font-size: 0.75rem;
    }

    .piano-speed-label {
        font-size: 0.75rem;
        display: none; /* Hide "Speed:" label on very small screens */
    }

    .piano-speed-select {
        height: 30px;
        padding: 0 6px;
        font-size: 0.75rem;
    }

    .piano-title {
        font-size: 1rem;
    }

    .piano-current-chord {
        font-size: 1.1rem;
    }

    .piano-container {
        padding: 20px 15px;
    }

    .piano-octave-controls {
        height: 30px;
        gap: 4px;
        padding: 0 4px;
    }

    .piano-octave-btn {
        width: 20px;
        height: 20px;
        font-size: 0.9rem;
    }

    .piano-octave-label {
        font-size: 0.7rem;
        min-width: 40px;
    }

    .piano-note-item {
        padding: 2px 8px;
        font-size: 0.9rem;
    }

    .piano-notes-label {
        font-size: 0.75rem;
    }

    /* Small mobile - 30px per white key - Right octave only (left octave hidden) */
    .piano-octave .piano-key.black[data-key-index="7"] { left: 20px !important; }  /* C# */
    .piano-octave .piano-key.black[data-key-index="8"] { left: 50px !important; }  /* D# */
    .piano-octave .piano-key.black[data-key-index="10"] { left: 110px !important; } /* F# */
    .piano-octave .piano-key.black[data-key-index="11"] { left: 140px !important; } /* G# */
    .piano-octave .piano-key.black[data-key-index="12"] { left: 170px !important; } /* A# */
}