/* ==========================================================================
   The Beat Grid — footer sequencer (homepage only)
   Every rule is scoped under #beatgrid so the machine's dark palette and its
   generic class names (.grid, .cell, .head, bare <button>) can't leak into
   the site's own light-theme styles.
   ========================================================================== */

#beatgrid {
    --bg-machine: #141416;
    --panel: #1b1b1e;
    --cell: #222226;
    --bd: #2e2e35;
    --txt: #F5F1EA;
    --muted: #8a8a92;
    --pink: #E5A9B2;
    --blue: #9DC3E0;
    --mint: #A8DCC4;
    --amber: #E8B04B;
    --orange: #E56B25;

    width: 100%;
    background: var(--panel);
    border: 1px solid var(--bd);
    border-radius: 20px;
    padding: 28px 24px 24px;
    font-family: 'Space Grotesk', sans-serif;
    color: var(--txt);
    text-align: left;
}

#beatgrid * { -webkit-tap-highlight-color: transparent; }

#beatgrid .head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

#beatgrid .head .bg-title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--txt);
}
#beatgrid .head .bg-title .dollar { color: var(--pink); }

#beatgrid .head .tag {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

#beatgrid .grid {
    display: grid;
    grid-template-columns: 96px repeat(32, 1fr);
    gap: 3px;
    margin-bottom: 6px;
}

#beatgrid .row-label {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    padding-right: 6px;
    user-select: none;
}

#beatgrid .ms { display: flex; gap: 3px; }
#beatgrid .ms-btn {
    width: 16px;
    height: 16px;
    padding: 0;
    border-radius: 4px;
    border: 1px solid var(--bd);
    background: transparent;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 8px;
    line-height: 1;
    cursor: pointer;
}
#beatgrid .ms-btn:hover { color: var(--txt); }
#beatgrid .ms-btn.active-m { background: var(--orange); border-color: var(--orange); color: #141416; }
#beatgrid .ms-btn.active-s { background: var(--mint); border-color: var(--mint); color: #141416; }

#beatgrid .cell.track-off { opacity: 0.3; }
#beatgrid .roll.track-off .ncell { opacity: 0.3; }

#beatgrid .cell {
    aspect-ratio: 1;
    min-width: 0;
    border-radius: 6px;
    background: var(--cell);
    border: 1px solid var(--bd);
    cursor: pointer;
    transition: background 0.08s, transform 0.08s, box-shadow 0.15s;
}
#beatgrid .cell.beat-mark { background: #26262b; }

/* faint vertical line at the start of bars 2, 3, 4 */
#beatgrid .cell.bar-line, #beatgrid .ncell.bar-line { position: relative; }
#beatgrid .cell.bar-line::after, #beatgrid .ncell.bar-line::after {
    content: '';
    position: absolute;
    top: -2px;
    bottom: -2px;
    background: #45454f;
    pointer-events: none;
}
#beatgrid .cell.bar-line::after { left: -2.5px; width: 1px; }
#beatgrid .ncell.bar-line::after { left: -1.5px; width: 1px; }
/* don't slice through a note that sustains across the bar line */
#beatgrid .ncell.bar-line.tail::after { display: none; }

#beatgrid .cell.on[data-row="0"] { background: var(--pink);  border-color: var(--pink); }
#beatgrid .cell.on[data-row="1"] { background: var(--blue);  border-color: var(--blue); }
#beatgrid .cell.on[data-row="2"] { background: var(--mint);  border-color: var(--mint); }
#beatgrid .cell.on[data-row="3"] { background: var(--amber); border-color: var(--amber); }

/* ---- keys / piano roll section ---- */
#beatgrid .keys-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin: 26px 0 12px;
    padding-top: 20px;
    border-top: 1px solid var(--bd);
}
#beatgrid .keys-head .kh-title {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.04em;
}
#beatgrid .keys-head .key-pick {
    display: flex;
    align-items: center;
    gap: 8px;
}
#beatgrid .keys-head label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
#beatgrid .keys-head select {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    background: var(--cell);
    color: var(--txt);
    border: 1px solid var(--bd);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
}

#beatgrid .keys-head .kh-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

/* chord lane: slim chips sitting directly above the piano roll */
#beatgrid .chord-lane {
    display: grid;
    grid-template-columns: 96px repeat(32, 1fr);
    gap: 2px;
    margin-bottom: 4px;
}
#beatgrid .chord-slot {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: #2c2c33;
    border: none;
    border-radius: 7px;
    padding: 5px 14px;
    transition: background 0.12s;
}
#beatgrid .chord-slot .handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: ew-resize;
    color: #55555f;
    font-size: 9px;
    user-select: none;
    touch-action: none;
}
#beatgrid .chord-slot .handle.l { left: 0; }
#beatgrid .chord-slot .handle.r { right: 0; }
#beatgrid .chord-slot .handle:hover { color: var(--txt); }
#beatgrid .chord-slot.playing .handle { color: rgba(20, 20, 22, 0.55); }
#beatgrid .chord-slot.playing { background: var(--pink); }
#beatgrid .chord-slot.playing select, #beatgrid .chord-slot.playing .degree { color: #141416; }
#beatgrid .chord-slot select {
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: none;
    color: var(--txt);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    text-align-last: center;
    cursor: pointer;
    outline: none;
}
#beatgrid .chord-slot select option { background: var(--cell); color: var(--txt); font-size: 14px; }
#beatgrid .chord-slot .degree {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--muted);
}
#beatgrid .cnt { display: flex; gap: 3px; }
#beatgrid .cnt-btn {
    width: 22px;
    height: 22px;
    padding: 0;
    border-radius: 6px;
    border: 1px solid var(--bd);
    background: transparent;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 10px;
    line-height: 1;
    cursor: pointer;
}
#beatgrid .cnt-btn:hover { color: var(--txt); }
#beatgrid .cnt-btn.active { background: var(--pink); border-color: var(--pink); color: #141416; }

#beatgrid .roll {
    display: grid;
    grid-template-columns: 96px repeat(32, 1fr);
    gap: 2px;
}
#beatgrid .pkey {
    height: 18px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 6px;
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.04em;
    user-select: none;
}
#beatgrid .pkey.white { background: #d8d4cc; color: #33333a; }
#beatgrid .pkey.black { background: #26262b; color: var(--muted); }
#beatgrid .pkey.inkey { box-shadow: inset 3px 0 0 var(--pink); }
#beatgrid .pkey.white.inkey { background: #f3ede2; }
#beatgrid .pkey.black.inkey { background: #303036; color: var(--txt); }

#beatgrid .ncell {
    height: 18px;
    border-radius: 3px;
    background: var(--cell);
    border: 1px solid var(--bd);
    cursor: pointer;
    transition: background 0.08s, transform 0.08s, box-shadow 0.15s;
}
#beatgrid .ncell.beat-mark { background: #26262b; }
#beatgrid .ncell.inkey { border-color: #3a3a42; background: #26262c; }
#beatgrid .ncell.inkey.beat-mark { background: #2b2b31; }
#beatgrid .ncell.locked { opacity: 0.35; cursor: default; }
#beatgrid .roll .ncell.on {
    background: var(--pink);
    border-color: var(--pink);
    cursor: ew-resize;
}
#beatgrid .roll .ncell.on.has-tail { border-top-right-radius: 0; border-bottom-right-radius: 0; }
#beatgrid .roll .ncell.tail {
    background: var(--pink);
    border-color: var(--pink);
    border-radius: 0;
    position: relative;
    cursor: ew-resize;
}
#beatgrid .roll .ncell.tail::before {
    content: '';
    position: absolute;
    left: -3px;
    top: -1px;
    bottom: -1px;
    width: 4px;
    background: var(--pink);
}
#beatgrid .roll .ncell.tail-end { border-top-right-radius: 3px; border-bottom-right-radius: 3px; }
#beatgrid .ncell.playhead { box-shadow: 0 0 0 2px var(--txt); }
#beatgrid .ncell.on.playhead { transform: scale(1.1); }

#beatgrid .cell.playhead { box-shadow: 0 0 0 2px var(--txt); }
#beatgrid .cell.on.playhead { transform: scale(1.12); }

#beatgrid .steps-ruler {
    display: grid;
    grid-template-columns: 96px repeat(32, 1fr);
    gap: 3px;
    margin-bottom: 10px;
}
#beatgrid .steps-ruler span {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--muted);
    user-select: none;
}

#beatgrid .controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 2px 0 22px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--bd);
}

#beatgrid button {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid var(--bd);
    background: var(--cell);
    color: var(--txt);
    cursor: pointer;
    transition: background 0.12s, transform 0.08s;
}
#beatgrid button:active { transform: scale(0.96); }

#beatgrid #bgPlay {
    background: var(--pink);
    border-color: var(--pink);
    color: #141416;
    font-weight: 700;
    min-width: 96px;
}
#beatgrid #bgPlay.playing { background: var(--orange); border-color: var(--orange); }

#beatgrid .tempo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}
#beatgrid .tstep {
    width: 34px;
    height: 34px;
    padding: 0;
    border-radius: 50%;
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
    color: var(--muted);
}
#beatgrid .tstep:hover { color: var(--txt); }
#beatgrid .bpm-read {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 52px;
    user-select: none;
}
#beatgrid #bgBpmVal {
    font-family: var(--font-mono);
    font-size: 22px;
    font-weight: 700;
    color: var(--txt);
    line-height: 1;
}
#beatgrid .bpm-unit {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--muted);
    letter-spacing: 0.2em;
    margin-top: 3px;
}
#beatgrid .tempo input[type=range] {
    width: 130px;
    accent-color: var(--pink);
}
#beatgrid #bgTap {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    padding: 14px 18px;
    border-radius: 10px;
    border: 1px dashed var(--muted);
    background: transparent;
    color: var(--muted);
}
#beatgrid #bgTap:hover { color: var(--txt); border-color: var(--txt); }
#beatgrid #bgTap.hit { background: var(--pink); border-color: var(--pink); color: #141416; }

#beatgrid .foot {
    margin-top: 16px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
}

@media (max-width: 560px) {
    #beatgrid { padding: 18px 12px 16px; }
    #beatgrid .grid,
    #beatgrid .steps-ruler { grid-template-columns: 70px repeat(32, 1fr); gap: 2px; }
    #beatgrid .row-label { font-size: 8px; padding-right: 2px; }
    #beatgrid .ms-btn { width: 13px; height: 13px; font-size: 7px; }
    #beatgrid .cell { border-radius: 4px; }
    #beatgrid .tempo { margin-left: 0; width: 100%; }
    #beatgrid .tempo input[type=range] { flex: 1; }
    #beatgrid .chord-lane { grid-template-columns: 70px repeat(32, 1fr); }
    #beatgrid .chord-slot select { font-size: 11px; }
    #beatgrid .chord-slot .degree { display: none; }
    #beatgrid .roll { grid-template-columns: 70px repeat(32, 1fr); }
    #beatgrid .pkey { font-size: 7px; padding-right: 3px; }
}

/* ---- MIDI export (replaces the old foot strapline) ---- */
#beatgrid .foot--export {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    text-transform: none;
    letter-spacing: 0.02em;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    margin-top: 20px;
}

#beatgrid .bg-export-btn {
    background: var(--pink);
    border-color: var(--pink);
    color: #141416;
    font-weight: 700;
    font-size: 13px;
    padding: 8px 18px;
}
#beatgrid .bg-export-btn:hover { filter: brightness(1.06); }

#beatgrid .bg-export-panel {
    max-width: 380px;
    margin: 16px auto 0;
    text-align: center;
}

#beatgrid .bg-export-ask {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    color: var(--txt);
    margin-bottom: 10px;
}

#beatgrid .bg-export-form {
    display: flex;
    gap: 8px;
}

#beatgrid .bg-export-form input {
    flex: 1;
    min-width: 0;
    background: #F5F1EA;
    border: 1px solid #F5F1EA;
    border-radius: 999px;
    padding: 9px 16px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    color: #1E1E1E;
    outline: none;
}
#beatgrid .bg-export-form input::placeholder { color: #5A5A5A; }
#beatgrid .bg-export-form input:disabled { opacity: 0.5; }

#beatgrid .bg-export-form button {
    font-size: 13px;
    padding: 9px 16px;
    white-space: nowrap;
}
#beatgrid .bg-export-form button:hover { background: var(--bd); }
#beatgrid .bg-export-form button:disabled { opacity: 0.5; cursor: default; }

#beatgrid .bg-export-status {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--muted);
    margin-top: 10px;
}
#beatgrid .bg-export-status.is-success { color: var(--mint); }
#beatgrid .bg-export-status.is-error { color: var(--orange); }