:root {
    --bg: #0b0e14;
    --bg-2: #121720;
    --bg-3: #1a2130;
    --fg: #e6ecf2;
    --fg-dim: #8b95a6;
    --accent: #8ab4ff;
    --accent-2: #ff8ac3;
    --good: #9dff8a;
    --warn: #ffc07a;
    --danger: #ff7a8a;
    --border: #23304a;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --row-h: 28px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at 20% -10%, #1a2644 0%, #0b0e14 45%) fixed;
    color: var(--fg);
    font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--accent); }
button, select, input { font: inherit; color: inherit; }

/* ============= Header ============= */
.appHeader {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    background: rgba(11, 14, 20, 0.75);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brandMark { font-size: 22px; color: var(--accent); filter: drop-shadow(0 0 10px var(--accent)); }
.brandName { font-size: 20px; font-weight: 700; letter-spacing: 0.02em; }
.brandTag { color: var(--fg-dim); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }

.repoForm {
    flex: 1;
    display: flex;
    gap: 6px;
    max-width: 720px;
}
#repoUrl {
    flex: 1;
    padding: 9px 12px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
#repoUrl:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(138, 180, 255, 0.15); }

.repoForm button {
    padding: 9px 16px;
    background: var(--accent);
    color: #0b0e14;
    border: 0;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .05s, filter .15s;
}
.repoForm button:hover { filter: brightness(1.08); }
.repoForm button:active { transform: scale(0.98); }
#stopBtn { background: var(--danger); }

.headerSplit {
    color: var(--fg-dim);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.headerLocal { display: flex; gap: 6px; flex-wrap: wrap; }
.headerActions { display: flex; gap: 4px; margin-left: auto; }
@media (max-width: 900px) {
    .appHeader { flex-wrap: wrap; }
    .repoForm { flex-basis: 100%; }
    .headerSplit { display: none; }
}
.iconBtn {
    background: var(--bg-2);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: background-color .15s, border-color .15s;
}
.iconBtn:hover { background: var(--bg-3); border-color: var(--accent); }

/* ============= Toast ============= */
.toast {
    position: fixed;
    top: 72px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-3);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    z-index: 100;
    max-width: 80vw;
}
.toast-error { border-color: var(--danger); color: #ffe0e5; }
.toast-info  { border-color: var(--accent); }

/* ============= Sheets ============= */
.sheet {
    position: fixed;
    top: 64px;
    right: 16px;
    width: min(420px, calc(100vw - 32px));
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 18px 20px;
    box-shadow: var(--shadow);
    z-index: 50;
}
.sheetHead { display: flex; align-items: center; justify-content: space-between; }
.sheet h2 { font-size: 16px; margin: 0 0 4px; }
.sheet h3 { font-size: 13px; color: var(--fg-dim); margin: 18px 0 8px; letter-spacing: .06em; text-transform: uppercase; }
.sheet .field {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    align-items: center;
    gap: 8px;
    margin: 10px 0;
}
.sheet .field input[type="range"] { accent-color: var(--accent); }
.sheet .field input[type="number"],
.sheet .field input[type="password"],
.sheet .field select {
    padding: 6px 8px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 100%;
}
.fieldLabel { color: var(--fg-dim); font-size: 13px; }
.fieldValue { color: var(--fg-dim); font-size: 12px; font-variant-numeric: tabular-nums; text-align: right; }
.hint { color: var(--fg-dim); font-size: 12px; margin: 4px 0; }

.presetList { list-style: none; padding: 0; margin: 0; }
.presetList li { margin: 4px 0; }
.preset {
    width: 100%;
    text-align: left;
    padding: 8px 10px;
    background: var(--bg-3);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
}
.preset:hover { border-color: var(--accent); }

.credits { font-size: 12px; color: var(--fg-dim); margin-top: 12px; }

/* ============= Main / transport ============= */
.main {
    display: grid;
    grid-template-rows: auto auto auto 1fr;
    gap: 6px;
    padding: 6px 12px 12px;
    min-height: calc(100vh - 62px);
}

.transport {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 18px;
    align-items: center;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 14px;
}
.transportLeft { display: flex; flex-direction: column; gap: 8px; }
.beatBar {
    display: flex;
    gap: 6px;
}
.beatCell {
    width: 34px; height: 34px;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 12px;
    color: var(--fg-dim);
    font-variant-numeric: tabular-nums;
    transition: background-color .08s, color .08s, box-shadow .08s, transform .08s;
}
.beatCell.active {
    background: var(--accent);
    color: #0b0e14;
    box-shadow: 0 0 22px rgba(138, 180, 255, 0.7);
    transform: scale(1.05);
}

.progress { display: flex; align-items: center; gap: 10px; min-width: 180px; }
.progressTrack { flex: 1; height: 6px; background: var(--bg-3); border-radius: 3px; overflow: hidden; }
.progressFill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width .15s linear; }
.progressLabel { color: var(--fg-dim); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }

.nowPlaying { min-width: 0; overflow: hidden; }
.npMsg { font-size: 15px; font-weight: 500; color: var(--fg); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.npMeta { color: var(--fg-dim); font-size: 12px; margin-top: 2px; }
.npSha { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--accent); }
.mergeBadge { display: inline-block; padding: 1px 6px; background: var(--accent-2); color: #0b0e14; border-radius: 10px; font-size: 10px; font-weight: 700; letter-spacing: .05em; }

/* ============= Stage (graph full-width) ============= */
.stage {
    display: block;
    min-height: 0;
}
.graphViewport {
    position: relative;
    height: max(320px, calc(100vh - 280px));  /* definite height so absolute children size properly */
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}
/* The canvas floats on top, always filling the visible area. pointer-events: none so the
 * scroller underneath keeps catching wheel/touch for native scroll. */
.graphCanvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: calc(100% - 72px);
    display: block;
    z-index: 1;
    pointer-events: none;
}
/* The scroller sits underneath the canvas — only its scroll mechanics matter.
 * Canvas on top forwards wheel events to it so native kinetic scroll still works. */
.graphScroller {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: calc(100% - 72px);
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
    overscroll-behavior: contain;
    z-index: 0;
}
.graphScroller::-webkit-scrollbar { display: none; }
.graphSpacer {
    height: 1px; /* provides horizontal scroll extent; width set in JS */
}
#gitGraph {
    display: block;
    background: transparent;
}
.playhead {
    position: absolute;
    top: 0; bottom: 72px;
    /* left is set dynamically from JS to track the current commit's screen X. */
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--accent) 10%, var(--accent-2) 90%, transparent);
    box-shadow: 0 0 12px rgba(138, 180, 255, 0.8);
    pointer-events: none;
    z-index: 5;
    transform: translateX(-1px);
}
.playhead::before, .playhead::after {
    content: "";
    position: absolute;
    left: -4px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}
.playhead::before { top: 2px; }
.playhead::after  { bottom: 2px; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }

.graphEmpty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fg-dim);
    pointer-events: none;
}
/* `hidden` attribute would normally imply display:none, but display:flex above wins
 * on specificity. Make the attribute explicit. */
.graphEmpty[hidden] { display: none; }


/* Hover tooltip over the graph canvas */
.tooltip {
    position: absolute;
    z-index: 4;
    max-width: 260px;
    background: rgba(26, 33, 48, 0.95);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 8px;
    font-size: 12px;
    color: var(--fg);
    pointer-events: none;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}
.tooltip .ttSha {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    color: var(--accent);
}
.tooltip .ttAuthor { color: var(--fg-dim); }
.tooltip .ttMsg { margin-top: 2px; }

/* Minimap along the bottom of the graph viewport */
.minimapCanvas {
    position: absolute;
    left: 8px;
    bottom: 6px;
    width: calc(100% - 16px);
    height: 56px;
    display: block;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: ew-resize;
    z-index: 3;
}
.minimapCanvas:hover { border-color: var(--accent); }

/* ============= Voice strip (horizontal chips above the graph) ============= */
.voiceStrip {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    padding: 6px 10px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.voicePanel { display: flex; flex-wrap: wrap; gap: 6px; }
.voiceRow {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 6px 4px 10px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 999px;
}
.voiceRow.muted { opacity: 0.45; }
.voiceLabel { font-weight: 700; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.voiceRow-bass .voiceLabel { color: #ffc07a; }
.voiceRow-lead .voiceLabel { color: #8ab4ff; }
.voiceRow-pad  .voiceLabel { color: #c890ff; }
.voiceRow-bell .voiceLabel { color: #7affd9; }

.voiceInst, .voiceOct {
    padding: 5px 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    max-width: 160px;
}
.voiceOct { max-width: 72px; }
.voiceMute {
    width: 28px; height: 28px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--fg);
    padding: 0;
}
.voiceMute:hover { border-color: var(--accent); color: var(--accent); }
.voiceMute.isMuted { color: var(--danger); border-color: rgba(255, 122, 138, 0.5); }
.voiceMute svg { display: block; }

/* Branch chips appear while a non-main lane is active, fade out when it closes. */
.voiceRow-branch {
    border-style: dashed;
    transition: opacity .25s ease-out, transform .25s ease-out;
    padding: 4px 12px;
}
.voiceRow-branch .dot {
    width: 8px; height: 8px; border-radius: 50%;
}
.voiceRow-branch .voiceLabel { font-size: 10px; }
.voiceBranchInst { font-size: 12px; color: var(--fg-dim); }
.voiceRow-branch.appearing { opacity: 0; transform: scale(0.85); }
.voiceRow-branch.exiting { opacity: 0; transform: scale(0.85); }

/* ============= Control strip (style + tempo + accel + density + drums) ============= */
.controlStrip {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.control {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 12px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 999px;
}
.controlLabel {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--fg-dim);
    font-weight: 700;
}
.controlStyle .controlLabel { color: var(--accent-2); }
.controlTempo { flex: 1 1 300px; min-width: 240px; max-width: 480px; }
.controlTempo input[type="range"] { flex: 1; accent-color: var(--accent); }
.controlValue {
    font-variant-numeric: tabular-nums;
    font-size: 12px;
    color: var(--fg-dim);
    min-width: 56px;
    text-align: right;
}
.control select {
    padding: 4px 6px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg);
    font-size: 13px;
}

/* Tighten the transport in full-width mode */
.transport { padding: 8px 12px; }
.beatCell { width: 28px; height: 28px; font-size: 11px; }
.nowPlaying { min-width: 0; }
.npMsg { font-size: 14px; }

/* ============= Settings extras ============= */
.localRow { display: flex; gap: 6px; flex-wrap: wrap; }
.btn {
    padding: 7px 12px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--fg);
    cursor: pointer;
}
.btn:hover { border-color: var(--accent); }
.cmd {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 10px;
    margin: 6px 0;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--accent);
    cursor: text;
    user-select: all;
}

/* Drop highlight overlay when user drags a file anywhere on the page */
body.isDropping::after {
    content: "Drop to load commits";
    position: fixed; inset: 12px;
    border: 3px dashed var(--accent);
    border-radius: 16px;
    background: rgba(138, 180, 255, 0.08);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; font-weight: 600;
    z-index: 999;
    pointer-events: none;
}