.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 14px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    color: var(--accent);
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 1px rgba(127, 220, 192, 0.18);
}

.brand-mark svg {
    width: 18px;
    height: 18px;
}

.brand-name {
    font-weight: 600;
    font-size: 15px;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.brand-sub {
    font-size: 13px;
    color: var(--text-3);
    white-space: nowrap;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.btn-icon {
    position: relative;
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 11px;
    color: var(--text-2);
    transition: background-color 0.2s var(--ease), color 0.2s var(--ease), transform 0.15s var(--ease);
}

.btn-icon:hover {
    color: var(--text);
    background: var(--surface);
}

.btn-icon:active {
    transform: scale(0.94);
}

.btn-icon[aria-pressed='true'] {
    color: var(--accent);
    background: var(--accent-soft);
}

.btn-icon .icon-sound-off,
.btn-icon[aria-pressed='false'] .icon-sound-on {
    display: none;
}

.btn-icon[aria-pressed='false'] .icon-sound-off {
    display: block;
}

#btn-sound[aria-pressed='true'] {
    color: var(--text-2);
    background: none;
}

#btn-sound[aria-pressed='true']:hover {
    color: var(--text);
    background: var(--surface);
}

@media (hover: hover) and (pointer: fine) {
    .btn-icon[data-tip]::after {
        content: attr(data-tip);
        position: absolute;
        top: calc(100% + 6px);
        right: 0;
        padding: 5px 9px;
        border-radius: 7px;
        font-size: 12px;
        white-space: nowrap;
        color: var(--text);
        background: var(--surface-2);
        box-shadow: var(--shadow-pop);
        opacity: 0;
        transform: translateY(-3px);
        pointer-events: none;
        transition: opacity 0.15s var(--ease), transform 0.15s var(--ease);
        z-index: var(--z-toast);
    }

    .btn-icon[data-tip]:hover::after,
    .btn-icon[data-tip]:focus-visible::after {
        opacity: 1;
        transform: none;
        transition-delay: 0.35s;
    }
}

.btn-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-soft);
    transition: background-color 0.2s var(--ease), transform 0.15s var(--ease);
}

.btn-chip svg {
    width: 16px;
    height: 16px;
}

.btn-chip:hover {
    background: rgba(127, 220, 192, 0.2);
}

.btn-chip:active {
    transform: scale(0.96);
}

.hud {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: end;
    column-gap: 24px;
    row-gap: 12px;
}

.hud-level {
    display: grid;
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    column-gap: 12px;
    align-items: baseline;
}

.hud-eyebrow {
    grid-column: 1 / -1;
    font-size: 12px;
    color: var(--text-3);
}

.hud-level-num {
    font-size: 44px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums;
}

.hud-spec {
    font-size: 13px;
    color: var(--text-2);
    white-space: nowrap;
}

.hud-stats {
    display: flex;
    justify-content: flex-end;
    gap: 32px;
}

.stat dt {
    font-size: 12px;
    color: var(--text-3);
}

.stat dd {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 500;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.stat-par {
    color: var(--text-3);
    font-size: 15px;
}

.stat dd.is-over {
    color: var(--danger);
}

.hud-progress {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-track {
    position: relative;
    flex: 1;
    height: 3px;
    border-radius: 3px;
    background: var(--line-strong);
    overflow: hidden;
}

.progress-fill {
    position: absolute;
    inset: 0;
    transform-origin: left center;
    transform: scaleX(0);
    background: var(--accent);
    border-radius: inherit;
    transition: transform 0.45s var(--ease);
}

.progress-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-3);
    font-variant-numeric: tabular-nums;
    min-width: 4.5ch;
    text-align: right;
}

.stage {
    position: relative;
    min-height: 0;
    border-radius: var(--r-xl);
    background:
        radial-gradient(90% 60% at 50% 100%, rgba(127, 220, 192, 0.05), transparent 70%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0));
    box-shadow: inset 0 0 0 1px var(--line);
    overflow: hidden;
    outline: none;
}

#game-canvas {
    position: absolute;
    inset: 0;
    display: block;
    touch-action: none;
    cursor: pointer;
}

.stage-overlay {
    position: absolute;
    inset: 0;
    z-index: var(--z-overlay);
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(12, 16, 19, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: fade-in 0.25s var(--ease);
}

.overlay-card {
    width: min(320px, 100%);
    display: grid;
    gap: 10px;
    text-align: center;
    justify-items: center;
}

.overlay-title {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.overlay-desc {
    font-size: 13px;
    color: var(--text-2);
    text-wrap: pretty;
}

.overlay-bar {
    position: relative;
    width: 160px;
    height: 3px;
    margin-top: 6px;
    border-radius: 3px;
    background: var(--line-strong);
    overflow: hidden;
}

.overlay-bar span {
    position: absolute;
    inset: 0;
    width: 40%;
    border-radius: inherit;
    background: var(--accent);
    animation: indeterminate 1.1s var(--ease) infinite;
}

.stage-overlay.is-error .overlay-title {
    color: var(--danger);
}

.toast-region {
    position: absolute;
    left: 50%;
    bottom: 16px;
    z-index: var(--z-toast);
    transform: translateX(-50%);
    width: max-content;
    max-width: calc(100% - 32px);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 999px;
    font-size: 14px;
    color: var(--text);
    background: var(--surface-2);
    box-shadow: var(--shadow-pop);
    animation: toast-in 0.28s var(--ease-spring);
}

.toast::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex: none;
    background: var(--accent);
}

.toast[data-tone='warn']::before {
    background: var(--danger);
}

.toast.is-leaving {
    animation: toast-out 0.2s var(--ease) forwards;
}

.toolbar {
    justify-self: center;
    display: flex;
    gap: 6px;
    padding: 6px;
    border-radius: 18px;
    background: var(--bg-raised);
    box-shadow: inset 0 0 0 1px var(--line);
}

.tool {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    transition: background-color 0.2s var(--ease), color 0.2s var(--ease), opacity 0.2s var(--ease), transform 0.15s var(--ease);
}

.tool:hover:not(:disabled) {
    background: var(--surface);
}

.tool:active:not(:disabled) {
    transform: scale(0.96);
}

.tool:disabled {
    opacity: 0.35;
}

.tool kbd {
    margin-left: 2px;
}

.tool-primary {
    color: var(--accent-ink);
    background: var(--accent);
}

.tool-primary:hover:not(:disabled) {
    background: var(--accent-strong);
}

.tool-primary kbd {
    color: var(--accent-ink);
    background: rgba(11, 26, 21, 0.12);
    box-shadow: none;
}

.tool-primary.is-busy svg {
    animation: pulse 0.9s var(--ease) infinite alternate;
}

.dialog {
    margin: auto;
    width: min(440px, calc(100vw - 32px));
    max-height: calc(100dvh - 48px);
    padding: 28px;
    border: 0;
    border-radius: var(--r-xl);
    color: var(--text);
    background: var(--bg-raised);
    box-shadow: var(--shadow-pop);
    overflow: auto;
}

.dialog[open] {
    animation: dialog-in 0.32s var(--ease-spring);
}

.dialog::backdrop {
    background: rgba(5, 9, 8, 0.66);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.dialog-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: -6px -10px 14px 0;
}

.dialog-eyebrow {
    font-size: 13px;
    color: var(--text-3);
}

.dialog-title {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.25;
    text-wrap: balance;
}

.dialog-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
}

.btn-primary,
.btn-quiet {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 46px;
    padding: 0 20px;
    border-radius: 13px;
    font-size: 15px;
    font-weight: 600;
    transition: background-color 0.2s var(--ease), transform 0.15s var(--ease);
}

.btn-primary {
    flex: 1;
    color: var(--accent-ink);
    background: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-primary kbd {
    color: var(--accent-ink);
    background: rgba(11, 26, 21, 0.12);
    box-shadow: none;
}

.btn-quiet {
    color: var(--text-2);
    font-weight: 500;
}

.btn-quiet:hover {
    color: var(--text);
    background: var(--surface);
}

.btn-primary:active,
.btn-quiet:active {
    transform: scale(0.97);
}

.win-head {
    display: flex;
    align-items: center;
    gap: 18px;
}

.win-rank {
    display: grid;
    place-items: center;
    width: 72px;
    height: 72px;
    flex: none;
    border-radius: 20px;
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -0.04em;
    color: var(--text-2);
    background: var(--surface);
    box-shadow: inset 0 0 0 1px var(--line-strong);
}

.win-rank[data-rank='S'] {
    color: var(--accent-ink);
    background: var(--accent);
    box-shadow: 0 10px 30px -8px rgba(127, 220, 192, 0.55);
}

.win-rank[data-rank='A'] {
    color: var(--text);
}

.win-rank[data-rank='none'] {
    font-size: 26px;
}

.win-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    margin-top: 24px;
    border-radius: var(--r-md);
    overflow: hidden;
    background: var(--line);
}

.win-stats div {
    padding: 12px 14px;
    background: var(--bg-raised);
}

.win-stats dt {
    font-size: 12px;
    color: var(--text-3);
}

.win-stats dd {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

.win-note {
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-2);
}

.win-note.is-record {
    color: var(--accent);
}

.help-body {
    display: grid;
    gap: 22px;
}

.help-body h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-3);
    margin-bottom: 8px;
}

.help-rules {
    display: grid;
    gap: 6px;
    padding-left: 1.2em;
    color: var(--text-2);
    max-width: 60ch;
}

.help-rules li::marker {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 13px;
}

.keys {
    display: grid;
    gap: 2px;
}

.keys div {
    display: grid;
    grid-template-columns: 9.5rem 1fr;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px solid var(--line);
}

.keys div:last-child {
    border-bottom: 0;
}

.keys dt {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    color: var(--text-3);
    font-size: 12px;
}

.keys dd {
    font-size: 14px;
    color: var(--text-2);
}

.help-text {
    color: var(--text-2);
    max-width: 60ch;
    text-wrap: pretty;
}

.update-banner {
    position: fixed;
    top: calc(env(safe-area-inset-top) + 12px);
    left: 50%;
    z-index: var(--z-banner);
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px 8px 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    background: var(--surface-2);
    box-shadow: var(--shadow-pop);
    animation: toast-in 0.3s var(--ease-spring);
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
}

@keyframes indeterminate {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(260%);
    }
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.97);
    }
}

@keyframes toast-out {
    to {
        opacity: 0;
        transform: translateY(6px);
    }
}

@keyframes dialog-in {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }
}

@keyframes pulse {
    to {
        opacity: 0.4;
    }
}

@media (hover: none),
(pointer: coarse) {
    kbd {
        display: none;
    }

    .keys kbd {
        display: inline-block;
    }
}

@media (max-width: 640px) {
    .app {
        row-gap: 10px;
    }

    .topbar {
        padding-top: 8px;
    }

    .brand-sub {
        display: none;
    }

    .hud {
        column-gap: 16px;
    }

    .hud-level-num {
        font-size: 34px;
    }

    .hud-stats {
        gap: 18px;
    }

    .stat dd {
        font-size: 17px;
    }

    .stat-par {
        font-size: 13px;
    }

    .stat-optional {
        display: none;
    }

    .stage {
        border-radius: var(--r-lg);
    }

    .toolbar {
        justify-self: stretch;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 4px;
    }

    .tool {
        flex-direction: column;
        justify-content: center;
        gap: 3px;
        height: 56px;
        padding: 0;
        font-size: 12px;
    }

    .dialog {
        margin: auto 0 0;
        width: 100%;
        max-width: 100%;
        border-radius: var(--r-xl) var(--r-xl) 0 0;
        padding: 24px 20px calc(20px + env(safe-area-inset-bottom));
    }

    .dialog[open] {
        animation: sheet-in 0.34s var(--ease);
    }

    .win-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .keys div {
        grid-template-columns: 7.5rem 1fr;
    }
}

@keyframes sheet-in {
    from {
        transform: translateY(100%);
    }
}

@media (max-width: 360px) {
    .hud-spec {
        display: none;
    }
}