:root {
    color-scheme: dark;
    font-family: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    height: 100%;
}

html {
    touch-action: manipulation;
    overscroll-behavior: none;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100dvh;
    background:
        radial-gradient(circle at top, rgba(56, 189, 248, 0.15), transparent 30%),
        radial-gradient(circle at 20% 20%, rgba(168, 85, 247, 0.12), transparent 22%),
        linear-gradient(180deg, #020617 0%, #020817 36%, #02030a 100%);
    color: #f8fafc;
    overflow: hidden;
    overscroll-behavior: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

a {
    color: inherit;
}

button,
input,
textarea,
select {
    font: inherit;
}

button,
canvas {
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

canvas {
    display: block;
}

.infinite-soldiers-page {
    --page-gap: clamp(0.45rem, 1vw, 0.85rem);
    width: 100%;
    max-width: none;
    min-height: 100dvh;
    height: 100dvh;
    margin: 0;
    padding:
        calc(var(--page-gap) + env(safe-area-inset-top))
        calc(var(--page-gap) + env(safe-area-inset-right))
        calc(var(--page-gap) + env(safe-area-inset-bottom))
        calc(var(--page-gap) + env(safe-area-inset-left));
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    gap: 1rem;
    align-items: stretch;
}

.hero-copy,
.tip-card,
.game-card,
.hint-card,
.hud-item {
    border: 1px solid rgba(148, 163, 184, 0.14);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.94) 0%, rgba(8, 15, 31, 0.96) 100%);
    box-shadow: 0 20px 50px rgba(2, 8, 23, 0.32);
}

.hero-copy {
    border-radius: 30px;
    padding: 1.5rem;
}

.eyebrow {
    margin: 0 0 0.5rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: #38bdf8;
}

.hero-copy h1 {
    margin: 0;
    font-size: clamp(2.4rem, 5vw, 4.5rem);
    line-height: 0.92;
}

.hero-text {
    margin: 1rem 0 0;
    max-width: 36rem;
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(226, 232, 240, 0.86);
}

.hero-tips {
    display: grid;
    gap: 1rem;
}

.tip-card {
    border-radius: 24px;
    padding: 1.15rem 1.2rem;
    display: grid;
    gap: 0.45rem;
    align-content: center;
}

.tip-title,
.hud-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.88);
}

.game-card {
    flex: 1;
    min-height: 0;
    width: 100%;
    border-radius: 34px;
    max-width: none;
    margin: 0;
    padding: clamp(0.65rem, 1vw, 1.1rem);
}

.game-root {
    width: 100%;
    height: 100%;
    min-height: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: clamp(0.5rem, 1vh, 1rem);
}

.game-hud {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(0.5rem, 0.9vw, 0.8rem);
}

.hud-item {
    border-radius: 22px;
    padding: clamp(0.65rem, 1vh, 0.9rem) clamp(0.8rem, 1vw, 1rem);
    display: grid;
    gap: 0.25rem;
}

.hud-value {
    font-size: clamp(1rem, 1.7vw, 1.55rem);
    line-height: 1.1;
    color: #f8fafc;
}

.stage-shell {
    position: relative;
    min-height: 0;
    height: 100%;
    padding: clamp(0.45rem, 1vw, 0.95rem);
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid rgba(96, 165, 250, 0.18);
    background:
        radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 38%),
        linear-gradient(180deg, rgba(15, 23, 42, 0.88) 0%, rgba(6, 11, 24, 0.98) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-over-modal {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: grid;
    place-items: center;
    padding: clamp(1rem, 2.4vw, 1.5rem);
    background:
        radial-gradient(circle at center, rgba(2, 6, 23, 0.04) 0%, rgba(2, 6, 23, 0.12) 48%, rgba(2, 6, 23, 0.3) 100%);
}

.game-over-modal[hidden] {
    display: none;
}

.game-over-card {
    width: min(100%, 24rem);
    border-radius: 26px;
    border: 1px solid rgba(125, 211, 252, 0.28);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.86) 0%, rgba(7, 12, 24, 0.92) 100%);
    box-shadow: 0 24px 60px rgba(2, 8, 23, 0.34);
    padding: clamp(1rem, 2.6vw, 1.45rem);
    display: grid;
    gap: 0.85rem;
}

.game-over-kicker,
.game-over-grid-heading {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.84);
}

.game-over-title {
    margin: 0;
    font-size: clamp(1.35rem, 2.6vw, 1.8rem);
    line-height: 1.05;
    color: #f8fafc;
}

.game-over-copy {
    margin: 0;
    color: rgba(226, 232, 240, 0.82);
    line-height: 1.5;
}

.game-over-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 0.9fr));
    gap: 0.65rem 0.8rem;
    align-items: center;
    padding-top: 0.95rem;
    border-top: 1px solid rgba(148, 163, 184, 0.16);
}

.game-over-grid-heading {
    justify-self: end;
}

.game-over-grid-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: rgba(226, 232, 240, 0.92);
}

.game-over-grid-value {
    justify-self: end;
    font-size: 1rem;
    line-height: 1.1;
    color: #f8fafc;
}

.game-over-grid-value-best {
    color: #67e8f9;
}

.game-over-actions {
    display: grid;
    gap: 0.55rem;
}

.game-over-button {
    appearance: none;
    border: 1px solid rgba(34, 211, 238, 0.34);
    border-radius: 999px;
    width: 100%;
    padding: 0.88rem 1.15rem;
    background: linear-gradient(180deg, rgba(34, 211, 238, 0.22) 0%, rgba(14, 165, 233, 0.28) 100%);
    color: #f8fafc;
    font-weight: 700;
    cursor: pointer;
    touch-action: manipulation;
    transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
    box-shadow: 0 16px 36px rgba(8, 47, 73, 0.28);
}

.game-over-button:hover {
    transform: translateY(-1px);
    border-color: rgba(103, 232, 249, 0.54);
    background: linear-gradient(180deg, rgba(34, 211, 238, 0.28) 0%, rgba(14, 165, 233, 0.34) 100%);
    box-shadow: 0 18px 40px rgba(8, 47, 73, 0.36);
}

.game-over-button:active {
    transform: translateY(1px);
}

.game-over-button:focus-visible {
    outline: 2px solid #67e8f9;
    outline-offset: 3px;
}

.game-over-button-secondary {
    border-color: rgba(148, 163, 184, 0.22);
    background: transparent;
    color: rgba(226, 232, 240, 0.72);
    box-shadow: none;
}

.game-over-button-secondary:hover {
    transform: none;
    border-color: rgba(148, 163, 184, 0.34);
    background: rgba(148, 163, 184, 0.06);
    box-shadow: none;
}

.game-over-button-secondary:active {
    transform: none;
    background: rgba(148, 163, 184, 0.1);
}

.game-root[data-run-state="lost"] .runner-canvas {
    filter: saturate(0.94) brightness(0.88);
}

.runner-canvas {
    width: 100%;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    aspect-ratio: 7 / 12;
    display: block;
    margin: 0;
    border-radius: 24px;
    background: #020617;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.05),
        0 24px 60px rgba(2, 8, 23, 0.5);
    touch-action: none;
    cursor: crosshair;
    object-fit: contain;
}

@media (max-width: 780px) {
    .game-hud {
        gap: 0.45rem;
    }
}

@media (max-width: 640px) {
    .infinite-soldiers-page {
        padding: 0.45rem;
    }

    .game-card {
        border-radius: 24px;
    }

    .hud-item {
        padding: 0.6rem 0.7rem;
    }

    .hud-value {
        font-size: 0.98rem;
    }

    .stage-shell {
        padding: 0.55rem;
        border-radius: 22px;
    }

    .game-over-card {
        width: min(100%, 22rem);
        padding: 1rem;
        gap: 0.75rem;
    }

    .game-over-grid {
        gap: 0.55rem 0.55rem;
    }

    .game-over-grid-label,
    .game-over-grid-value {
        font-size: 0.88rem;
    }

}