body.sprite-run-page,
.sr-mount,
.sprite-run-home-mount {
    color-scheme: dark;
    --sr-bg: #070b12;
    --sr-panel: #111827;
    --sr-panel-2: #182235;
    --sr-line: rgba(148, 163, 184, 0.18);
    --sr-text: #f8fafc;
    --sr-muted: #94a3b8;
    --sr-blue: #38bdf8;
    --sr-green: #b7f34a;
    --sr-red: #fb7185;
    --sr-amber: #fbbf24;
    --sr-code: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --sr-display: "Space Grotesk", system-ui, sans-serif;
}

.sr-mount,
.sr-mount *,
.sprite-run-home-mount,
.sprite-run-home-mount * { box-sizing: border-box; }

body.sprite-run-page {
    margin: 0;
    min-height: 100dvh;
    background: var(--sr-bg);
    color: var(--sr-text);
    font-family: var(--sr-display);
}

.sr-mount button,
.sr-mount input,
.sprite-run-home-mount button,
.sprite-run-home-mount input { font: inherit; }

.sr-mount button,
.sprite-run-home-mount button { -webkit-tap-highlight-color: transparent; }

.sr-mount,
.sr-game-shell {
    width: 100%;
    min-height: 100dvh;
}

.sr-game-shell {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    overflow: hidden;
    background:
        linear-gradient(rgba(56, 189, 248, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.025) 1px, transparent 1px),
        var(--sr-bg);
    background-size: 32px 32px;
}

.sr-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 72px;
    padding: 0.85rem clamp(1rem, 3vw, 2rem);
    border-bottom: 1px solid var(--sr-line);
    background: rgba(7, 11, 18, 0.94);
}

.sr-brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    min-width: 0;
}

.sr-home-link,
.sr-icon-button {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    border: 1px solid var(--sr-line);
    border-radius: 6px;
    background: var(--sr-panel);
    color: var(--sr-text);
    text-decoration: none;
    cursor: pointer;
}

.sr-home-link:hover,
.sr-icon-button:hover { border-color: var(--sr-blue); color: var(--sr-blue); }

.sr-brand-copy { min-width: 0; }

.sr-brand-copy strong {
    display: block;
    font-family: var(--sr-code);
    font-size: clamp(1rem, 2.4vw, 1.35rem);
    letter-spacing: 0;
}

.sr-brand-copy span {
    display: block;
    margin-top: 0.2rem;
    overflow: hidden;
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.72rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sr-top-actions { display: flex; align-items: center; gap: 0.5rem; }
.sr-ghost-label {
    max-width: min(32vw, 220px);
    overflow: hidden;
    color: var(--sr-green);
    font-family: var(--sr-code);
    font-size: 0.66rem;
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sr-top-actions [data-action="sound"] {
    width: auto;
    min-width: 68px;
    padding: 0 0.65rem;
    font-family: var(--sr-code);
    font-size: 0.68rem;
    white-space: nowrap;
}

.sr-top-actions [data-action="motion"] {
    width: auto;
    min-width: 92px;
    padding: 0 0.65rem;
    font-family: var(--sr-code);
    font-size: 0.68rem;
    white-space: nowrap;
}

.sr-hud {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    border-bottom: 1px solid var(--sr-line);
    background: #0b111c;
}

.sr-stat {
    min-width: 0;
    padding: 0.7rem clamp(0.55rem, 2vw, 1.25rem);
    border-right: 1px solid var(--sr-line);
}

.sr-stat:last-child { border-right: 0; }

.sr-stat-label {
    display: block;
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.64rem;
    font-weight: 700;
    text-transform: uppercase;
}

.sr-stat-value {
    display: block;
    margin-top: 0.2rem;
    overflow: hidden;
    color: var(--sr-text);
    font-family: var(--sr-code);
    font-size: clamp(0.9rem, 2.5vw, 1.15rem);
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sr-stat-value.is-bank { color: var(--sr-green); }
.sr-stat-value.is-yolo { color: var(--sr-amber); }
.sr-stat-value.is-survival { color: var(--sr-blue); }
.sr-stat-value.is-checkpoints { color: var(--sr-blue); }

.sr-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(270px, 330px);
    min-height: 0;
}

.sr-play-column {
    position: relative;
    display: grid;
    grid-template-rows: minmax(300px, 1fr) auto;
    min-width: 0;
    min-height: 0;
    border-right: 1px solid var(--sr-line);
}

.sr-stage {
    position: relative;
    min-height: 300px;
    overflow: hidden;
    background: radial-gradient(circle at 50% 75%, rgba(56, 189, 248, 0.08), transparent 50%);
    touch-action: pan-y;
}

.sr-canvas {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
}

.sr-canvas canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.sr-message {
    position: absolute;
    inset: 0;
    z-index: 8;
    display: grid;
    place-items: center;
    padding: 1rem;
    background: rgba(7, 11, 18, 0.72);
    backdrop-filter: blur(5px);
}

.sr-message[hidden] { display: none; }

.sr-motion-low .sr-message {
    background: rgba(7, 11, 18, 0.86);
    backdrop-filter: none;
}

.sr-message-panel {
    width: min(500px, 100%);
    padding: clamp(1.25rem, 4vw, 2rem);
    border: 1px solid var(--sr-line);
    border-top: 3px solid var(--sr-blue);
    border-radius: 8px;
    background: rgba(17, 24, 39, 0.98);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}

.sr-message-kicker {
    display: block;
    color: var(--sr-blue);
    font-family: var(--sr-code);
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1.3;
    text-transform: uppercase;
}

.sr-message h1,
.sr-message h2 {
    margin: 0.55rem 0 0;
    font-family: var(--sr-display);
    font-size: clamp(1.75rem, 7vw, 3.2rem);
    line-height: 1;
    letter-spacing: 0;
}

.sr-message p {
    margin: 1rem 0 0;
    color: var(--sr-muted);
    line-height: 1.6;
}

.sr-message-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.25rem;
}

.sr-button {
    min-height: 44px;
    padding: 0.7rem 1rem;
    border: 1px solid transparent;
    border-radius: 6px;
    background: var(--sr-blue);
    color: #04111b;
    font-family: var(--sr-code);
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
}

.sr-button:hover { filter: brightness(1.08); }
.sr-button:disabled { cursor: not-allowed; opacity: 0.45; }
.sr-button.is-secondary { border-color: var(--sr-line); background: var(--sr-panel-2); color: var(--sr-text); }
.sr-button.is-checkpoint { background: var(--sr-green); color: #122000; }
.sr-button.is-danger { background: var(--sr-red); color: #24030a; }

.sr-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--sr-line);
    background: #0b111c;
}

.sr-control-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.72rem;
}

.sr-key {
    display: inline-grid;
    min-width: 24px;
    min-height: 24px;
    margin-right: 0.25rem;
    padding: 0.2rem 0.4rem;
    place-items: center;
    border: 1px solid var(--sr-line);
    border-bottom-width: 2px;
    border-radius: 4px;
    background: var(--sr-panel-2);
    color: var(--sr-text);
}

.sr-touch-controls { display: none; gap: 0.65rem; }
.sr-touch-controls .sr-button { min-width: 110px; }

.sr-side {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    min-height: 0;
    background: rgba(11, 17, 28, 0.96);
}

.sr-side-head {
    padding: 1rem;
    border-bottom: 1px solid var(--sr-line);
}

.sr-side-head-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.sr-side h2 {
    margin: 0;
    font-family: var(--sr-code);
    font-size: 0.88rem;
    letter-spacing: 0;
    text-transform: uppercase;
}

.sr-day {
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.68rem;
}

.sr-mode-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.35rem;
    margin-top: 0.8rem;
    padding: 0.25rem;
    border: 1px solid var(--sr-line);
    border-radius: 6px;
    background: var(--sr-bg);
}

.sr-mode-tab {
    padding: 0.5rem;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.72rem;
    cursor: pointer;
}

.sr-mode-tab[aria-selected="true"] { background: var(--sr-panel-2); color: var(--sr-text); }

.sr-board {
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.sr-board-empty {
    padding: 1.25rem 1rem;
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.74rem;
    line-height: 1.6;
}

.sr-board-row {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    padding: 0.75rem 1rem;
    border: 0;
    border-bottom: 1px solid var(--sr-line);
    background: transparent;
    color: var(--sr-text);
    text-align: left;
    cursor: pointer;
}

.sr-board-row:hover,
.sr-board-row.is-selected { background: rgba(56, 189, 248, 0.08); }
.sr-board-row.is-selected { box-shadow: inset 3px 0 var(--sr-blue); }

.sr-rank { color: var(--sr-muted); font-family: var(--sr-code); font-size: 0.72rem; }
.sr-player { min-width: 0; }
.sr-player strong { display: block; overflow: hidden; font-size: 0.82rem; text-overflow: ellipsis; white-space: nowrap; }
.sr-player span { display: block; margin-top: 0.15rem; color: var(--sr-muted); font-family: var(--sr-code); font-size: 0.62rem; }
.sr-board-score { color: var(--sr-green); font-family: var(--sr-code); font-size: 0.76rem; font-weight: 700; }

.sr-personal-best {
    padding: 0.85rem 1rem;
    border-top: 1px solid var(--sr-line);
    color: var(--sr-muted);
    font-family: var(--sr-code);
    font-size: 0.7rem;
}

.sr-personal-best strong { color: var(--sr-text); }

.sr-submit {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.5rem;
    margin-top: 1rem;
}

.sr-submit input {
    min-width: 0;
    height: 44px;
    border: 1px solid var(--sr-line);
    border-radius: 6px;
    outline: 0;
    background: var(--sr-bg);
    color: var(--sr-text);
    padding: 0 0.75rem;
    font-family: var(--sr-code);
}

.sr-submit input:focus { border-color: var(--sr-blue); }
.sr-submit-status { min-height: 1.2em; margin-top: 0.5rem !important; font-family: var(--sr-code); font-size: 0.7rem; }

.sr-rewinding .sr-stage::after {
    content: "RESTORING CHECKPOINT";
    position: absolute;
    inset: 0;
    z-index: 6;
    display: grid;
    place-items: center;
    background: repeating-linear-gradient(0deg, rgba(183, 243, 74, 0.12) 0 2px, transparent 2px 7px);
    color: var(--sr-green);
    font-family: var(--sr-code);
    font-size: clamp(0.9rem, 4vw, 1.4rem);
    font-weight: 700;
    animation: srRewind 0.12s steps(2) infinite;
}

@keyframes srRewind {
    from { transform: translateX(-4px); }
    to { transform: translateX(4px); }
}

.sr-motion-low.sr-rewinding .sr-stage::after {
    background: rgba(11, 19, 32, 0.92);
    animation: none;
}

.sr-screen-flash {
    position: absolute;
    inset: 0;
    z-index: 7;
    pointer-events: none;
    background: var(--sr-red);
    opacity: 0;
}

.sr-screen-flash.is-active { animation: srCrashFlash 0.35s ease-out; }
.sr-screen-flash.is-level-up {
    background: var(--sr-amber);
    animation: srLevelFlash 0.55s ease-out;
}

.sr-motion-low .sr-screen-flash.is-active { animation: srCrashFlashLow 0.18s linear; }
.sr-motion-low .sr-screen-flash.is-level-up { animation: srLevelFlashLow 0.2s linear; }

@keyframes srCrashFlash {
    0% { opacity: 0.42; }
    100% { opacity: 0; }
}

@keyframes srLevelFlash {
    0% { opacity: 0.22; }
    100% { opacity: 0; }
}

@keyframes srCrashFlashLow {
    0% { opacity: 0.12; }
    100% { opacity: 0; }
}

@keyframes srLevelFlashLow {
    0% { opacity: 0.08; }
    100% { opacity: 0; }
}

.sr-toast {
    position: absolute;
    top: 1rem;
    left: 50%;
    z-index: 7;
    max-width: calc(100% - 2rem);
    transform: translate(-50%, -12px);
    border: 1px solid rgba(183, 243, 74, 0.35);
    border-radius: 6px;
    background: rgba(7, 11, 18, 0.92);
    color: var(--sr-green);
    padding: 0.55rem 0.8rem;
    font-family: var(--sr-code);
    font-size: 0.72rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.sr-toast.is-active { opacity: 1; transform: translate(-50%, 0); }

.sr-motion-low .sr-toast {
    transform: translate(-50%, 0);
    transition: opacity 0.12s linear;
}

@media (max-width: 900px) {
    .sr-game-shell { overflow: auto; }
    .sr-main { grid-template-columns: 1fr; }
    .sr-play-column { min-height: 70dvh; border-right: 0; }
    .sr-side { min-height: 360px; border-top: 1px solid var(--sr-line); }
}

@media (max-width: 620px), (pointer: coarse) {
    .sr-topbar { min-height: 60px; padding: 0.55rem 0.75rem; }
    .sr-home-link,
    .sr-icon-button { width: 38px; height: 38px; flex-basis: 38px; }
    .sr-brand-copy strong { font-size: 0.84rem; white-space: nowrap; }
    .sr-top-actions { gap: 0.3rem; }
    .sr-top-actions [data-action="sound"] { min-width: 44px; padding-inline: 0.35rem; font-size: 0; }
    .sr-top-actions [data-action="sound"]::after { content: "SFX"; font-size: 0.6rem; }
    .sr-top-actions [data-action="motion"] { min-width: 72px; padding-inline: 0.45rem; font-size: 0.6rem; }
    .sr-brand-copy span { display: none; }
    .sr-ghost-label { max-width: 96px; font-size: 0.58rem; }
    .sr-hud { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .sr-stat { padding: 0.55rem 0.65rem; }
    .sr-stat:nth-child(3),
    .sr-stat:nth-child(6) { border-right: 0; }
    .sr-stat:nth-child(4),
    .sr-stat:nth-child(5),
    .sr-stat:nth-child(6) { border-top: 1px solid var(--sr-line); }
    .sr-play-column { grid-template-rows: minmax(330px, 62dvh) auto; }
    .sr-controls { align-items: stretch; }
    .sr-control-hints { display: none; }
    .sr-touch-controls { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
    .sr-touch-controls .sr-button { min-width: 0; min-height: 52px; }
    .sr-message-panel { padding: 1.25rem; }
    .sr-message-actions { display: grid; grid-template-columns: 1fr; }
    .sr-message-actions .sr-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .sr-mount *,
    .sr-mount *::before,
    .sr-mount *::after,
    .sprite-run-home-mount *,
    .sprite-run-home-mount *::before,
    .sprite-run-home-mount *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}