/*
    Audio Studio - audiostudio.css
    Dark DAW-style theme.
*/

:root {
    --as-bg: #16191f;
    --as-bg-deep: #101318;
    --as-panel: #1e232c;
    --as-panel-2: #262c37;
    --as-border: #313847;
    --as-text: #e8eaf0;
    --as-text-dim: #9aa2b1;
    --as-accent: #7c5cff;
    --as-accent-soft: #9d86ff;
    --as-record: #e5484d;
    --as-play: #35c25e;
    --as-lane-bg: #22262e;
    --as-lane-alt: #1d2129;
    --as-grid: #2c313b;
    --as-selection: rgba(255, 255, 255, 0.22);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--as-bg);
    color: var(--as-text);
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    font-size: 13px;
    user-select: none;
    -webkit-user-select: none;
}

button {
    font-family: inherit;
}

#appRoot {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

/* ============ Toolbar ============ */

#toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    background: var(--as-bg-deep);
    border-bottom: 1px solid var(--as-border);
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    flex-shrink: 0;
}

.tbGroup {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0 6px;
    border-right: 1px solid var(--as-border);
    height: 34px;
    flex-shrink: 0;
}

.tbGroup:last-child {
    border-right: none;
}

.tbBtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--as-text);
    cursor: pointer;
    padding: 0;
}

.tbBtn:hover {
    background: var(--as-panel-2);
}

.tbBtn:disabled {
    opacity: 0.35;
    cursor: default;
}

.tbBtn:disabled:hover {
    background: transparent;
}

.tbBtn.active {
    background: var(--as-accent);
    color: #ffffff;
}

.tbBtn svg {
    width: 16px;
    height: 16px;
    display: block;
    fill: currentColor;
}

.tbBtn.playBtn svg { fill: var(--as-play); }
.tbBtn.recBtn svg { fill: var(--as-record); }
.tbBtn.recBtn.recording {
    background: rgba(229, 72, 77, 0.25);
    animation: as-pulse 1s infinite;
}

@keyframes as-pulse {
    0% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0.5); }
    70% { box-shadow: 0 0 0 7px rgba(229, 72, 77, 0); }
    100% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0); }
}

#timeDisplay {
    font-family: "Consolas", "Menlo", monospace;
    font-size: 17px;
    letter-spacing: 1px;
    background: var(--as-panel);
    border: 1px solid var(--as-border);
    border-radius: 6px;
    padding: 4px 12px;
    min-width: 150px;
    text-align: center;
    white-space: nowrap;
    cursor: default;
}

.tbLabel {
    color: var(--as-text-dim);
    margin: 0 4px;
    white-space: nowrap;
}

.tbCheckbox {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    color: var(--as-text-dim);
    white-space: nowrap;
}

.tbCheckbox input {
    accent-color: var(--as-accent);
    cursor: pointer;
}

#meterWrap {
    display: flex;
    align-items: center;
    gap: 6px;
}

#meterCanvas {
    background: var(--as-panel);
    border: 1px solid var(--as-border);
    border-radius: 4px;
}

#toolbarSpacer {
    flex: 1;
    min-width: 4px;
}

/* ============ Main layout ============ */

#main {
    display: flex;
    flex: 1;
    min-height: 0;
}

#leftCol {
    width: 270px;
    min-width: 270px;
    display: flex;
    flex-direction: column;
    background: var(--as-bg);
    border-right: 1px solid var(--as-border);
}

#tracksBar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 30px;
    padding: 0 8px;
    border-bottom: 1px solid var(--as-border);
    color: var(--as-text-dim);
    flex-shrink: 0;
}

#addTrackBtn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--as-panel-2);
    color: var(--as-text);
    border: 1px solid var(--as-border);
    border-radius: 5px;
    padding: 3px 10px;
    cursor: pointer;
}

#addTrackBtn:hover {
    background: var(--as-border);
}

#addTrackBtn svg {
    width: 11px;
    height: 11px;
    fill: currentColor;
}

#headerScroll {
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* ============ Track headers ============ */

.trackHeader {
    height: 110px;
    background: var(--as-panel);
    border-bottom: 1px solid var(--as-bg-deep);
    padding: 8px 10px 6px 10px;
    display: flex;
    flex-direction: column;
    gap: 7px;
    cursor: pointer;
    border-left: 3px solid transparent;
}

.trackHeader.selected {
    background: var(--as-panel-2);
    border-left: 3px solid var(--as-accent);
}

.thRow {
    display: flex;
    align-items: center;
    gap: 7px;
}

.thName {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
}

.thNameInput {
    flex: 1;
    background: var(--as-bg-deep);
    color: var(--as-text);
    border: 1px solid var(--as-accent);
    border-radius: 4px;
    padding: 2px 5px;
    font-size: 13px;
    outline: none;
    min-width: 0;
}

.thIcon svg {
    width: 14px;
    height: 14px;
    display: block;
    fill: var(--as-text-dim);
}

.thMenuBtn {
    background: transparent;
    border: none;
    color: var(--as-text-dim);
    cursor: pointer;
    border-radius: 4px;
    width: 24px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.thMenuBtn:hover {
    background: var(--as-border);
    color: var(--as-text);
}

.thMenuBtn svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

.thKnob {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--as-bg-deep);
    border: 2px solid var(--as-border);
    position: relative;
    cursor: ns-resize;
    flex-shrink: 0;
}

.thKnob::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 2px;
    width: 2px;
    height: 9px;
    margin-left: -1px;
    background: var(--as-accent-soft);
    border-radius: 1px;
    transform-origin: 1px 11px;
    transform: rotate(var(--knob-angle, 0deg));
}

.thVolume {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 2px;
    background: linear-gradient(to right, var(--as-accent) 0%, var(--as-accent) var(--vol-pct, 66%), var(--as-border) var(--vol-pct, 66%));
    outline: none;
    cursor: pointer;
    min-width: 0;
}

.thVolume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #e8eaf0;
    border: none;
    cursor: pointer;
}

.thVolume::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #e8eaf0;
    border: none;
    cursor: pointer;
}

.thToggle {
    width: 24px;
    height: 22px;
    border: 1px solid var(--as-border);
    border-radius: 4px;
    background: var(--as-bg-deep);
    color: var(--as-text-dim);
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    flex-shrink: 0;
}

.thToggle:hover {
    border-color: var(--as-text-dim);
}

.thToggle.muteOn {
    background: #a13d42;
    border-color: #a13d42;
    color: #ffffff;
}

.thToggle.soloOn {
    background: #2e7d46;
    border-color: #2e7d46;
    color: #ffffff;
}

.thEffects {
    width: 100%;
    background: var(--as-panel-2);
    border: 1px solid var(--as-border);
    border-radius: 5px;
    color: var(--as-text);
    padding: 4px 0;
    cursor: pointer;
}

.thEffects:hover {
    background: var(--as-border);
}

/* ============ Timeline ============ */

#rightCol {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    position: relative;
    background: var(--as-bg-deep);
}

#rulerWrap {
    height: 30px;
    border-bottom: 1px solid var(--as-border);
    flex-shrink: 0;
    cursor: pointer;
    position: relative;
}

#rulerCanvas {
    display: block;
    width: 100%;
    height: 100%;
}

#laneView {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    min-height: 0;
}

#laneList {
    position: relative;
}

.lane {
    height: 110px;
    border-bottom: 1px solid var(--as-bg-deep);
    position: relative;
}

.laneCanvas {
    display: block;
    width: 100%;
    height: 100%;
}

#playhead {
    position: absolute;
    top: 0;
    width: 1px;
    background: #e8eaf0;
    pointer-events: none;
    z-index: 5;
    box-shadow: 0 0 4px rgba(232, 234, 240, 0.6);
}

#emptyHint {
    position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    text-align: center;
    color: var(--as-text-dim);
    pointer-events: none;
    z-index: 2;
    line-height: 1.9;
}

#emptyHint kbd {
    background: var(--as-panel-2);
    border: 1px solid var(--as-border);
    border-radius: 4px;
    padding: 1px 6px;
    font-family: inherit;
}

#hscroll {
    height: 14px;
    overflow-x: auto;
    overflow-y: hidden;
    flex-shrink: 0;
    background: var(--as-bg-deep);
}

#hscrollInner {
    height: 1px;
}

/* ============ Modals / popups ============ */

.asModalOverlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.asModal {
    background: var(--as-panel);
    border: 1px solid var(--as-border);
    border-radius: 10px;
    width: 560px;
    max-width: 92vw;
    max-height: 84vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
}

.asModalTitle {
    padding: 13px 18px;
    font-size: 15px;
    font-weight: 600;
    border-bottom: 1px solid var(--as-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.asModalBody {
    padding: 12px 18px;
    overflow-y: auto;
    flex: 1;
}

.asModalFooter {
    padding: 11px 18px;
    border-top: 1px solid var(--as-border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.asBtn {
    background: var(--as-panel-2);
    border: 1px solid var(--as-border);
    color: var(--as-text);
    border-radius: 6px;
    padding: 6px 16px;
    cursor: pointer;
}

.asBtn:hover {
    background: var(--as-border);
}

.asBtn.primary {
    background: var(--as-accent);
    border-color: var(--as-accent);
    color: #ffffff;
}

.asBtn.primary:hover {
    background: var(--as-accent-soft);
}

/* Shortcuts table */

.scGroupTitle {
    color: var(--as-text-dim);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 1px;
    margin: 12px 0 4px 0;
}

.scRow {
    display: flex;
    align-items: center;
    padding: 5px 4px;
    border-radius: 5px;
    gap: 8px;
}

.scRow:hover {
    background: var(--as-panel-2);
}

.scLabel {
    flex: 1;
}

.scBinding {
    font-family: "Consolas", "Menlo", monospace;
    background: var(--as-bg-deep);
    border: 1px solid var(--as-border);
    border-radius: 5px;
    padding: 3px 10px;
    min-width: 90px;
    text-align: center;
    cursor: pointer;
    color: white;
}

.scBinding:hover {
    border-color: var(--as-accent);
}

.scBinding.capturing {
    border-color: var(--as-accent);
    color: var(--as-accent-soft);
    animation: as-pulse 1.2s infinite;
}

.scReset {
    background: transparent;
    border: none;
    color: var(--as-text-dim);
    cursor: pointer;
    border-radius: 4px;
    padding: 3px 6px;
}

.scReset:hover {
    color: var(--as-text);
    background: var(--as-border);
}

/* Settings / preference rows */

.prefRow {
    margin: 10px 0;
    line-height: 1.8;
}

.prefRow label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.prefRow input {
    accent-color: var(--as-accent);
}

.prefHint {
    color: var(--as-text-dim);
    font-size: 12px;
    margin-left: 24px;
}

/* Context menu / effects popup */

.asPopup {
    position: fixed;
    background: var(--as-panel);
    border: 1px solid var(--as-border);
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    z-index: 120;
    min-width: 160px;
    padding: 5px;
}

.asPopupItem {
    padding: 7px 12px;
    border-radius: 5px;
    cursor: pointer;
    white-space: nowrap;
}

.asPopupItem:hover {
    background: var(--as-panel-2);
}

.asPopupItem.danger:hover {
    background: #5c2326;
}

.asPopupSep {
    height: 1px;
    background: var(--as-border);
    margin: 5px 3px;
}

.fxPanel {
    padding: 10px 14px;
    width: 250px;
}

.fxPanel h4 {
    margin: 2px 0 10px 0;
    font-size: 13px;
}

.fxRow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 9px 0;
}

.fxRow label {
    width: 45px;
    color: var(--as-text-dim);
}

.fxRow input[type="range"] {
    flex: 1;
    accent-color: var(--as-accent);
}

.fxRow .fxVal {
    width: 58px;
    text-align: right;
    font-family: "Consolas", "Menlo", monospace;
    font-size: 12px;
}

/* Toast messages */

#toastArea {
    position: fixed;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
    pointer-events: none;
}

.asToast {
    background: var(--as-panel-2);
    border: 1px solid var(--as-border);
    color: var(--as-text);
    border-radius: 8px;
    padding: 9px 18px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
    animation: as-toast-in 0.18s ease-out;
    max-width: 70vw;
}

.asToast.error {
    border-color: var(--as-record);
}

@keyframes as-toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}