:root {
    /* Layout tokens */
    --header-h: 60px;
    --radius: 12px;
    --gap: 16px;
    --keyboard-gap: 2px;
}

* {
    box-sizing: border-box
}

html,
body {
    height: 100%
}

body {
    margin: 0;
    background: linear-gradient(180deg, var(--neutral-900), var(--neutral-700));
    color: var(--gold-100);
    font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

body.boot-loading {
    overflow: hidden;
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 10;
    height: var(--header-h);
    display: grid;
    grid-template-columns: 60px 1fr 44px;
    align-items: center;
    padding: 0 12px;
    background: var(--fx-midnight-veil-soft);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--neutral-300);
}

.logo img {
    margin: 12px;
    height: 40px;
    width: auto;
    display: block;
    filter: drop-shadow(0 2px 6px color-mix(in srgb, var(--black) 40%, transparent))
}

.title {
    margin: 0;
    text-align: center;
    font-size: 18px;
    letter-spacing: .4px
}

.menu-btn {
    height: 36px;
    width: 36px;
    border-radius: 10px;
    background: var(--neutral-700);
    color: var(--gold-100);
    border: 1px solid var(--neutral-300);
    cursor: pointer;
}

.menu-btn:hover {
    border-color: color-mix(in srgb, var(--neutral-300) 85%, var(--mist-300) 15%);
}

.drawer {
    display: none;
    position: fixed;
    top: 70px;
    right: 16px;
    z-index: 20;
    padding: 8px 12px 14px;
    min-width: 220px;
    background: color-mix(in srgb, var(--neutral-900) 92%, transparent);
    border: 1px solid var(--neutral-300);
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.drawer a {
    display: block;
    color: var(--gold-100);
    text-decoration: none;
    padding: 8px 6px;
    border-radius: 8px;
    font-weight: 600;
}

.drawer a:hover {
    background: rgba(255, 255, 255, 0.12);
}

.app-main {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px;
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap);
    align-items: flex-start;
}

.panel {
    position: relative;
    background: var(--neutral-700);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius);
    box-shadow: 0 6px 24px var(--fx-shadow-strong);
    padding: 16px;
    flex: 1 1 320px;
}

.panel.keyboard-panel {
    flex: 1 1 100%;
}

.panel-title {
    margin: 0 0 10px;
    font-size: 16px;
    color: var(--mist-400)
}

#panelTitle {
    animation: panelTitleGlow 2.4s ease-in-out infinite;
}

@keyframes panelTitleGlow {
    0% {
        color: var(--mist-400);
        text-shadow: 0 0 0 transparent;
    }

    50% {
        color: var(--gold-600);
        text-shadow: 0 0 12px color-mix(in srgb, var(--gold-600) 55%, transparent);
    }

    100% {
        color: var(--mist-400);
        text-shadow: 0 0 0 transparent;
    }
}

.panel.tasks {
    flex: 0 1 260px;
    padding: 0 0 20px;
    background: transparent;
    border: none;
    box-shadow: none;
}

.controls {
    display: grid;
    gap: 12px
}


#tempoRange {
    width: 100%
}

#tempoOut {
    min-width: 3ch;
    text-align: right;
    font-variant: tabular-nums
}

.play-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap
}

button {
    appearance: none;
    border: 1px solid var(--neutral-300);
    background: var(--neutral-700);
    color: var(--gold-100);
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: .15s ease;
}

button:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--neutral-300) 70%, var(--mist-300) 30%);
}

button:focus-visible {
    outline: 2px solid var(--blue-600);
    outline-offset: 2px
}

button.primary {
    background: var(--neutral-700);
    border-color: var(--neutral-300);
    color: var(--mist-400);
    box-shadow: none;
}

button.primary.active {
    background: color-mix(in srgb, var(--neutral-700) 75%, var(--neutral-500) 25%);
    border-color: var(--blue-600);
    color: var(--blue-300);
    box-shadow: 0 0 18px color-mix(in srgb, var(--blue-300) 40%, transparent);
}

button.accent {
    background: color-mix(in srgb, var(--teal-900) 70%, transparent);
    border-color: color-mix(in srgb, var(--teal-900) 65%, var(--neutral-300) 35%);
    color: var(--green-300)
}

button.ghost {
    background: transparent;
    border-color: var(--neutral-300);
    color: var(--mist-400)
}

button.ghost.active {
    border-color: var(--blue-600);
    color: var(--blue-300);
    box-shadow: 0 0 14px color-mix(in srgb, var(--blue-300) 30%, transparent);
}

button.ghost.success {
    border-color: var(--gold-400);
    color: var(--gold-200);
    box-shadow: 0 0 14px color-mix(in srgb, var(--gold-400) 28%, transparent);
}

button.opt {
    width: 100%;
    text-align: left;
    background: var(--neutral-700);
    border-color: var(--neutral-300);
    color: var(--gold-100);
}

button.opt:hover {
    border-color: var(--blue-600);
}

button.opt.is-active {
    border-color: var(--blue-600);
    background: linear-gradient(135deg,
            color-mix(in srgb, var(--blue-600) 45%, transparent),
            color-mix(in srgb, var(--teal-600) 35%, transparent));
    color: var(--mist-050);
    box-shadow: 0 0 12px color-mix(in srgb, var(--blue-300) 35%, transparent);
}

.all-panel-frame {
    display: contents;
    width: 100%;
    max-width: 100%;
    margin: auto;
}

.panel.tasks {
    position: relative;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    flex: 0 0 auto;
    cursor: pointer;
}

.tasks-trigger {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--neutral-700);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius);
    box-shadow: 0 6px 24px var(--fx-shadow-strong);
    padding: 18px 20px;
    color: var(--gold-100);
    cursor: pointer;
    transition: .18s ease;
}

.panel.tasks:hover .tasks-trigger,
.panel.tasks.open .tasks-trigger {
    border-color: var(--blue-600);
    box-shadow: 0 12px 28px color-mix(in srgb, var(--blue-300) 25%, transparent);
}

.tasks-trigger span,
.tasks-trigger h2 {
    pointer-events: none;
}

.panel-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--mist-400);
}

.panel.tasks .panel-title {
    margin: 0;
    font-size: 20px;
    color: var(--gold-100);
}

.tasks-header {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.tasks-trigger-wrapper {
    position: relative;
    flex: 1 1 auto;
}

.tasks-header .tasks-trigger {
    flex: 1 1 auto;
    width: 100%;
}

.tasks-info-btn {
    flex: 0 0 auto;
    padding: 16px;
    background: var(--blue-600);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background .18s ease, transform .18s ease;
}

.tasks-info-btn:hover,
.tasks-info-btn:focus-visible {
    background: color-mix(in srgb, var(--blue-600) 85%, var(--blue-300) 15%);
}

.tasks-info-btn:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--white) 60%, transparent);
    outline-offset: 2px;
}

.tasks-info-popup {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    width: min(320px, 92vw);
    background: var(--blue-600);
    color: var(--white);
    border-radius: 14px;
    box-shadow: 0 18px 50px var(--fx-shadow-strong);
    padding: 18px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity .2s ease, transform .2s ease;
    z-index: 40;
}

.tasks-info-popup.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.tasks-info-popup[hidden] {
    display: none;
}

.tasks-info-inner {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tasks-info-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tasks-info-title {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
}

.tasks-info-close {
    border: none;
    background: color-mix(in srgb, var(--white) 20%, transparent);
    color: var(--white);
    border-radius: 999px;
    width: 32px;
    height: 32px;
    font-size: 16px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background .18s ease;
}

.tasks-info-close:hover,
.tasks-info-close:focus-visible {
    background: color-mix(in srgb, var(--white) 35%, transparent);
}

.task-overlay {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
    min-width: 220px;
    width: min(360px, 100%);
    background: color-mix(in srgb, var(--neutral-900) 96%, transparent);
    border: 1px solid var(--neutral-300);
    border-radius: 14px;
    box-shadow: 0 18px 50px var(--fx-shadow-strong);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity .18s ease, transform .18s ease;
    z-index: 30;
}

.panel.tasks.open .task-overlay {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.panel.tasks.closing .task-overlay {
    opacity: 0 !important;
    pointer-events: none !important;
}

.panel.tasks.suppress-hover .task-overlay,
.panel.tasks.suppress-hover:hover .task-overlay {
    opacity: 0 !important;
    pointer-events: none !important;
}

.panel.tasks .task-overlay {
    pointer-events: none;
}

.panel.tasks.open .task-overlay {
    pointer-events: auto;
}

.panel-frame {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap);
    width: 100%;
    align-items: stretch;
}

.accordion {
    position: relative;
    background: var(--mist-400);
    border: 1px solid var(--neutral-300);
    border-radius: 12px;
    color: var(--gold-100);
    padding: 14px 18px;
    min-width: 200px;
}

.accordion::after {
    content: "";
    position: absolute;
    top: -8px;
    bottom: -8px;
    left: 100%;
    width: 24px;
    background: transparent;
    pointer-events: auto;
}

.accordion-label {
    width: 100%;
    background: transparent;
    border: none;
    color: inherit;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    padding: 0;
}

.accordion-label:focus-visible {
    outline: 2px solid var(--blue-600);
    outline-offset: 4px;
    border-radius: 6px;
}

.option-list {
    position: absolute;
    top: 0;
    left: calc(100% + 14px);
    display: none;
    flex-direction: column;
    gap: 8px;
    min-width: 220px;
    padding: 12px;
    background: color-mix(in srgb, var(--neutral-700) 98%, transparent);
    border: 1px solid var(--neutral-300);
    border-radius: 12px;
    box-shadow: 0 18px 38px var(--fx-shadow-strong);
    z-index: 32;
}

.accordion:hover .option-list,
.accordion:focus-within .option-list,
.accordion.expanded .option-list {
    display: flex;
}

.status {
    /* display: flex; */
    gap: 16px;
    align-items: center
}

.goblin {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--neutral-700);
    border-radius: 10px;
    padding: 8px;
    border: 1px solid var(--neutral-300);
}

.goblin img {
    max-width: 120px;
    height: auto;
    display: block
}

.score {
    display: grid;
    gap: 6px;
    color: var(--gold-100)
}

.score strong {
    color: var(--gold-100)
}

.info-block {
    max-width: 100%;
    width: fit-content;
    margin-bottom: 12px;
}

.info {
    color: var(--blue-300);
}

.no-wrap {
    text-wrap: nowrap;
}

@keyframes scoreFlashUp {
    0% {
        color: var(--gold-100);
        text-shadow: 0 0 0 transparent;
    }

    50% {
        color: color-mix(in srgb, var(--gold-600) 70%, var(--gold-100) 30%);
        text-shadow: 0 0 8px color-mix(in srgb, var(--gold-600) 60%, transparent);
    }

    100% {
        color: var(--gold-100);
        text-shadow: 0 0 0 transparent;
    }
}

@keyframes scoreFlashDown {
    0% {
        color: var(--red-300);
        text-shadow: 0 0 0 transparent;
    }

    50% {
        color: color-mix(in srgb, var(--red-300) 70%, var(--red-50) 30%);
        text-shadow: 0 0 8px color-mix(in srgb, var(--fx-red-burst) 55%, transparent);
    }

    100% {
        color: var(--gold-100);
        text-shadow: 0 0 0 transparent;
    }
}

.score strong.score-flash-up {
    animation: scoreFlashUp .6s ease-out;
}

.score strong.score-flash-down {
    animation: scoreFlashDown .6s ease-out;
}

.boot-overlay {
    position: fixed;
    inset: 0;
    background: var(--fx-midnight-veil-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: opacity .35s ease, visibility .35s ease;
}

.boot-overlay.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.boot-overlay__inner {
    display: grid;
    gap: 18px;
    text-align: center;
    padding: 32px 38px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--neutral-700) 82%, transparent);
    border: 1px solid color-mix(in srgb, var(--mist-400) 22%, transparent);
    box-shadow: 0 20px 60px color-mix(in srgb, var(--black) 45%, transparent);
    /* max-width: min(320px, 90vw); */
    cursor: pointer;
}

.boot-spinner {
    width: 56px;
    height: 56px;
    margin: 0 auto;
    border-radius: 50%;
    border: 4px solid color-mix(in srgb, var(--mist-400) 35%, transparent);
    border-top-color: var(--green-300);
    animation: bootSpin 1s linear infinite;
}

@keyframes bootSpin {
    to {
        transform: rotate(360deg);
    }
}

.boot-status {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
}

.boot-progress {
    width: min(280px, 76vw);
    height: 6px;
    background: color-mix(in srgb, var(--mist-400) 18%, transparent);
    border-radius: 999px;
    overflow: hidden;
    margin: 0 auto;
}

.boot-progress__bar {
    width: 0;
    height: 100%;
    background: var(--green-300);
    border-radius: inherit;
    transition: width .25s ease;
}

.boot-hint {
    margin: 0;
    font-size: 13px;
    color: var(--mist-400);
}

.boot-overlay.is-hidden .boot-spinner {
    animation-play-state: paused;
}

.orientation-hint {
    position: fixed;
    left: 50%;
    top: 16px;
    transform: translateX(-50%);
    padding: 10px 18px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--neutral-700) 86%, transparent);
    border: 1px solid color-mix(in srgb, var(--mist-400) 25%, transparent);
    color: var(--gold-100);
    font-size: 13px;
    letter-spacing: .02em;
    display: none;
    align-items: center;
    gap: 8px;
    z-index: 1500;
    pointer-events: none;
    box-shadow: 0 12px 30px var(--fx-shadow-strong);
}

.orientation-hint.is-visible {
    display: flex;
}

.keyboard-panel {
    grid-column: 1 / -1
}

.keyboard {
    position: relative;
    margin-top: 8px;
    height: 200px;
    background: var(--neutral-900);
    border-radius: 12px;
    border: 1px solid var(--neutral-300);
    overflow: hidden;
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--white) 2%, transparent);
    display: flex;
    align-items: flex-end;
    padding: 0 14px 12px;
    gap: var(--keyboard-gap);
    width: 100%;
    max-width: 100%;
    --white-key-count: 24;
    --white-key-width: calc((100% - (var(--white-key-count) - 1) * var(--keyboard-gap)) / var(--white-key-count));
}

.key {
    position: relative;
    flex: 0 0 var(--white-key-width);
    min-width: var(--white-key-width);
    max-width: var(--white-key-width);
    height: 180px;
    background: linear-gradient(var(--white), var(--mist-200));
    border-radius: 6px;
    border: 1px solid var(--mist-300);
    box-shadow: inset 0 -6px 0 color-mix(in srgb, var(--black) 10%, transparent),
        0 6px 20px color-mix(in srgb, var(--black) 15%, transparent);
    cursor: pointer;
}

.key.active {
    outline: 3px solid var(--blue-600);
    outline-offset: -3px
}

.key.playback-active {
    outline: 3px solid var(--gold-600);
    outline-offset: -3px
}

.key.black.playback-active {
    box-shadow: 0 0 10px color-mix(in srgb, var(--gold-600) 90%, transparent);
    outline-color: var(--gold-600)
}

.key .label {
    position: absolute;
    bottom: 6px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 12px;
    color: var(--black);
    font-weight: 700;
    pointer-events: none;
}

.key.black {
    position: absolute;
    top: 0;
    height: 116px;
    width: 60%;
    max-width: none;
    left: 70%;
    background: linear-gradient(var(--neutral-700), var(--black));
    border-color: var(--black);
    z-index: 3;
    border-radius: 6px 6px 8px 8px;
}

.key.black .label {
    color: var(--mist-200)
}

.app-footer {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px 40px;
    color: var(--mist-400);
    text-align: center;
}

/* Responsive */
@media(min-width:900px) {
    .panel-frame {
        flex-wrap: nowrap;
    }
}

@media (max-width:900px) {
    .app-main {
        flex-direction: column
    }

    .panel {
        flex: 1 1 auto;
        /* width: 100%; */
        max-width: 100%;
    }

    .panel.tasks {
        align-self: flex-start
    }

    /* .task-overlay {
        left: 50%;
        transform: translate(-50%, 12px);
        width: min(90vw, 420px);
    } */

    /* .panel.tasks.open .task-overlay {
        transform: translate(-50%, 0);
    } */

    .option-list {
        position: static;
        left: auto;
        margin-top: 10px;
        box-shadow: none;
        width: 100%;
    }

    .accordion.expanded .option-list {
        display: flex;
    }

    /* .status {
        grid-template-columns: 1fr
    } */

    .goblin img {
        max-width: 140px;
        height: 20vh;
    }

    .panel.keyboard-panel {
        width: 100%;
    }
}

@media (max-width:600px) {
    .panel.keyboard-panel {
        padding-left: 0;
        padding-right: 0;
    }

    .panel.keyboard-panel .panel-title {
        padding: 0 16px;
    }

    .panel.keyboard-panel .keyboard {
        border-radius: 0;
        border-left: none;
        border-right: none;
        padding-left: 12px;
        padding-right: 12px;
    }
}