/* Keyboard Ninja — rocket launcher redesign + words/letters modes */

.gs-app.game-id-keyboard-ninja,
.game-app.game-id-keyboard-ninja {
    --kn-accent: var(--game-accent, var(--chrome-accent, #e2b714));
    --kn-bg: var(--chrome-bg, #323437);
    --kn-surface: var(--chrome-surface, #2c2e31);
    --kn-text: var(--chrome-text, #d1d0c5);
    --kn-muted: var(--chrome-sub, #646669);
    --kn-border: var(--chrome-border, #4a4d52);
    --kn-fire: #ff6b1a;
    --kn-fire-hot: #ffe566;
}

.gs-app.game-id-keyboard-ninja .gs-stage {
    background:
        radial-gradient(ellipse 70% 40% at 50% 0%, color-mix(in srgb, var(--kn-accent) 10%, transparent), transparent 55%),
        var(--kn-bg);
}

.game-mode-keyboard-ninja .game-danger-line,
.game-mode-keyboard-ninja .game-base-line {
    display: none !important;
}

/* Mode toggle in chrome */
.kn-mode-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--kn-border, #4a4d52);
    border-radius: 8px;
    overflow: hidden;
    background: var(--kn-surface, #2c2e31);
    flex: 0 0 auto;
    z-index: 5;
}

.kn-mode-toggle[hidden] { display: none !important; }

.kn-mode-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--kn-muted, #646669);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.35rem 0.7rem;
    cursor: pointer;
    line-height: 1.2;
    pointer-events: auto;
}

.kn-mode-btn + .kn-mode-btn {
    border-left: 1px solid var(--kn-border, #4a4d52);
}

.kn-mode-btn.is-active {
    background: color-mix(in srgb, var(--kn-accent, #e2b714) 88%, #000);
    color: #111;
}

.kn-mode-btn:hover:not(.is-active) {
    color: var(--kn-text, #d1d0c5);
}

.kn-arena {
    position: relative;
    background: transparent !important;
    overflow: hidden;
}

.kn-scene { position: absolute; inset: 0; z-index: 1; }

.kn-skyline {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(color-mix(in srgb, var(--kn-border) 18%, transparent) 1px, transparent 1px),
        linear-gradient(90deg, color-mix(in srgb, var(--kn-border) 18%, transparent) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.55;
    pointer-events: none;
}

.kn-escape {
    position: absolute;
    top: 6%;
    left: 5%;
    right: 5%;
    height: 2px;
    z-index: 4;
    background: linear-gradient(
        90deg,
        transparent,
        color-mix(in srgb, #ca4754 50%, transparent),
        color-mix(in srgb, #ca4754 50%, transparent),
        transparent
    );
    pointer-events: none;
}

.kn-escape span {
    position: absolute;
    left: 50%;
    top: -1.15rem;
    transform: translateX(-50%);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: color-mix(in srgb, #ca4754 70%, var(--kn-muted));
}

.kn-prompt {
    position: absolute;
    top: 1.1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 6;
    min-height: 2.1rem;
    max-width: min(920px, 92%);
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-size: clamp(1.45rem, 3.6vw, 2.2rem);
    font-weight: 700;
    letter-spacing: 0.03em;
    text-align: center;
    color: var(--kn-text);
    pointer-events: none;
}

.kn-prompt.is-empty {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--kn-muted);
    text-transform: lowercase;
}

.kn-caret {
    display: inline-block;
    width: 0.12em;
    margin-right: 0.05em;
    color: var(--kn-accent);
    font-weight: 400;
}

.kn-ch.is-wait { color: var(--kn-muted); }
.kn-ch.is-next {
    color: var(--kn-accent);
    background: color-mix(in srgb, var(--kn-accent) 18%, transparent);
    border-radius: 4px;
}
.kn-ch.is-ok { color: var(--kn-text); }
.kn-ch.is-bad { color: #ca4754; }

.kn-layer {
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: none;
}

.kn-pad {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: min(260px, 48%);
    height: 12px;
    margin-left: -130px;
    border-radius: 8px 8px 0 0;
    background: color-mix(in srgb, var(--kn-accent) 28%, var(--kn-surface));
    border: 1px solid color-mix(in srgb, var(--kn-accent) 40%, var(--kn-border));
    border-bottom: none;
    z-index: 5;
}

/* Operator + rocket launcher */
.kn-fig {
    position: absolute;
    left: 50%;
    bottom: 12px;
    z-index: 10;
    width: 78px;
    height: 78px;
    margin-left: -28px;
    pointer-events: none;
}

.kn-fig-body {
    position: relative;
    width: 42px;
    height: 70px;
    transform-origin: center bottom;
}

.kn-fig:not(.is-firing) .kn-fig-body {
    animation: kn-idle 2.4s ease-in-out infinite;
}

.kn-fig.is-miss .kn-fig-body {
    animation: kn-miss-shake 0.28s ease;
}

@keyframes kn-miss-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.kn-fig.is-firing .kn-fig-body {
    animation: kn-recoil 0.38s cubic-bezier(0.2, 0.9, 0.3, 1);
}

.kn-fig-head {
    position: absolute;
    left: 50%;
    top: 2px;
    width: 16px;
    height: 16px;
    margin-left: -8px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--kn-text) 88%, var(--kn-accent));
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--kn-accent) 25%, transparent);
}

.kn-fig-torso {
    position: absolute;
    left: 50%;
    top: 20px;
    width: 18px;
    height: 24px;
    margin-left: -9px;
    border-radius: 6px;
    background: var(--kn-accent);
}

.kn-fig-arm {
    position: absolute;
    top: 22px;
    width: 5px;
    height: 18px;
    border-radius: 4px;
    background: color-mix(in srgb, var(--kn-accent) 70%, #000 30%);
    transform-origin: top center;
}

.kn-fig-arm-l { left: 6px; transform: rotate(14deg); }
.kn-fig-arm-r { right: 4px; transform: rotate(-52deg); }

.kn-fig-leg {
    position: absolute;
    bottom: 2px;
    width: 6px;
    height: 22px;
    border-radius: 4px;
    background: color-mix(in srgb, var(--kn-text) 55%, var(--kn-surface));
}

.kn-fig-leg-l { left: 11px; }
.kn-fig-leg-r { right: 11px; }

.kn-launcher {
    --kn-aim: -55deg;
    position: absolute;
    left: 20px;
    top: 16px;
    width: 54px;
    height: 18px;
    transform: rotate(var(--kn-aim));
    transform-origin: 6px 9px;
    transition: transform 0.1s ease-out;
}

.kn-launcher-pivot {
    position: absolute;
    inset: 0;
    transform-origin: 6px 9px;
}

.kn-launcher-tube {
    position: absolute;
    left: 0;
    top: 4px;
    width: 48px;
    height: 11px;
    border-radius: 6px;
    background: linear-gradient(180deg, #5a5d62 0%, #3a3d42 45%, #2c2e31 100%);
    border: 1px solid #1e1f21;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.kn-launcher-tube::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 2px;
    right: 10px;
    height: 3px;
    border-radius: 2px;
    background: color-mix(in srgb, var(--kn-accent) 55%, transparent);
}

.kn-launcher-grip {
    position: absolute;
    left: 10px;
    top: 12px;
    width: 8px;
    height: 14px;
    border-radius: 2px;
    background: #4a4d52;
    border: 1px solid #2c2e31;
}

.kn-launcher-muzzle {
    position: absolute;
    right: -2px;
    top: 5px;
    width: 9px;
    height: 9px;
    border-radius: 2px;
    background: #1e1f21;
    border: 1px solid #646669;
}

.kn-fig.is-firing .kn-launcher-pivot {
    animation: kn-launcher-kick 0.42s ease-out;
}

.kn-fig.is-firing .kn-fig-arm-r {
    transform: rotate(-62deg);
}

@keyframes kn-idle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

@keyframes kn-recoil {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-8px, 3px) rotate(-4deg); }
    55% { transform: translate(-3px, 1px); }
    100% { transform: translate(0, 0); }
}

@keyframes kn-launcher-kick {
    0% { transform: translate(0, 0); }
    30% { transform: translate(-10px, 1px); }
    100% { transform: translate(0, 0); }
}

/* Rising tiles */
.kn-tile {
    position: absolute;
    z-index: 7;
    transform-origin: center bottom;
}

.kn-tile-enter { animation: kn-tile-in 0.28s ease-out; }

@keyframes kn-tile-in {
    from { transform: scale(0.85); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.kn-tile-face {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 2.6rem;
    padding: 0.55rem 0.85rem;
    border-radius: 10px;
    background: color-mix(in srgb, var(--kn-surface) 82%, #000 18%);
    border: 1px solid var(--kn-border);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.28);
}

.kn-tile.is-letter .kn-tile-face {
    min-height: 2.8rem;
    border-radius: 12px;
}

.kn-tile-word {
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-size: clamp(0.95rem, 2.2vw, 1.15rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--kn-text);
    text-align: center;
    word-break: break-word;
}

.kn-tile.is-letter .kn-tile-word {
    font-size: 1.35rem;
    text-transform: uppercase;
}

.kn-tile.is-active .kn-tile-face {
    background: color-mix(in srgb, var(--kn-accent) 42%, var(--kn-surface));
    border-color: color-mix(in srgb, var(--kn-accent) 55%, var(--kn-border));
    box-shadow:
        0 0 0 1px color-mix(in srgb, var(--kn-accent) 40%, transparent),
        0 10px 22px color-mix(in srgb, var(--kn-accent) 22%, transparent);
}

.kn-tile.is-active .kn-tile-word { color: #111; }

.kn-tile.is-cleared .kn-tile-face {
    animation: kn-tile-clear 0.24s ease-out forwards;
}

.kn-tile.is-escaped {
    animation: kn-tile-escape 0.28s ease-in forwards;
}

@keyframes kn-tile-clear {
    to { transform: scale(1.2); opacity: 0; }
}

@keyframes kn-tile-escape {
    to { transform: translateY(-18px) scale(0.9); opacity: 0; }
}

/* Muzzle flash / exhaust */
.kn-muzzle-flash {
    position: absolute;
    width: 42px;
    height: 28px;
    margin: -14px 0 0 -2px;
    z-index: 16;
    transform: rotate(var(--kn-rot, 0deg));
    transform-origin: left center;
    pointer-events: none;
    animation: kn-muzzle 0.32s ease-out forwards;
}

.kn-muzzle-flash::before,
.kn-muzzle-flash::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    border-radius: 50%;
    transform: translateY(-50%);
}

.kn-muzzle-flash::before {
    width: 28px;
    height: 16px;
    background: radial-gradient(circle, #fff 0%, var(--kn-fire-hot) 28%, var(--kn-fire) 55%, transparent 72%);
}

.kn-muzzle-flash::after {
    width: 48px;
    height: 24px;
    left: 6px;
    background: radial-gradient(circle, rgba(255, 230, 120, 0.9) 0%, rgba(255, 107, 26, 0.4) 42%, transparent 72%);
}

@keyframes kn-muzzle {
    0% { opacity: 1; transform: rotate(var(--kn-rot, 0deg)) scaleX(0.55) scaleY(0.7); }
    40% { opacity: 1; transform: rotate(var(--kn-rot, 0deg)) scaleX(1.15) scaleY(1.05); }
    100% { opacity: 0; transform: rotate(var(--kn-rot, 0deg)) scaleX(1.55) scaleY(1.25); }
}

.kn-exhaust {
    position: absolute;
    width: 48px;
    height: 18px;
    margin: -9px 0 0 -44px;
    z-index: 15;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 102, 105, 0.6) 0%, transparent 72%);
    transform: rotate(var(--kn-rot, 0deg));
    transform-origin: right center;
    animation: kn-exhaust 0.48s ease-out forwards;
    pointer-events: none;
}

@keyframes kn-exhaust {
    from { opacity: 0.75; transform: rotate(var(--kn-rot, 0deg)) translateX(0) scale(0.65); }
    to { opacity: 0; transform: rotate(var(--kn-rot, 0deg)) translateX(-22px) scale(1.55); }
}

.kn-launch-puff {
    position: absolute;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -18px;
    z-index: 14;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(150, 152, 155, 0.55), transparent 70%);
    transform: rotate(var(--kn-rot, 0deg));
    transform-origin: right center;
    animation: kn-launch-puff 0.5s ease-out forwards;
    animation-delay: var(--kn-puff-delay, 0ms);
    opacity: 0;
    pointer-events: none;
}

@keyframes kn-launch-puff {
    0% { opacity: 0; transform: rotate(var(--kn-rot, 0deg)) translateX(0) scale(0.4); }
    20% { opacity: 0.7; }
    100% { opacity: 0; transform: rotate(var(--kn-rot, 0deg)) translateX(-28px) translateY(-8px) scale(1.6); }
}

/* Flying rocket — position driven by JS curve */
.kn-rocket {
    position: absolute;
    width: 36px;
    height: 12px;
    z-index: 17;
    pointer-events: none;
    will-change: left, top, transform;
}

.kn-rocket-body {
    position: absolute;
    left: 6px;
    top: 3px;
    width: 18px;
    height: 6px;
    border-radius: 2px;
    background: linear-gradient(180deg, #d1d0c5 0%, #8a8b86 100%);
    border: 1px solid #4a4d52;
}

.kn-rocket-nose {
    position: absolute;
    left: 22px;
    top: 2px;
    width: 10px;
    height: 8px;
    background: var(--kn-accent);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.kn-rocket-fin {
    position: absolute;
    left: 4px;
    width: 7px;
    height: 5px;
    background: #646669;
}

.kn-fin-l { top: -1px; clip-path: polygon(100% 100%, 0 0, 100% 0); }
.kn-fin-r { bottom: -1px; clip-path: polygon(100% 0, 0 100%, 100% 100%); }

.kn-rocket-flame {
    position: absolute;
    left: -14px;
    top: 0;
    width: 20px;
    height: 12px;
    border-radius: 50%;
    background: radial-gradient(circle at 80% 50%, #fff 0%, var(--kn-fire-hot) 30%, var(--kn-fire) 55%, transparent 72%);
    animation: kn-flame-flicker 0.07s linear infinite;
    filter: blur(0.3px);
}

.kn-rocket-trail {
    position: absolute;
    left: -36px;
    top: 2px;
    width: 32px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(90deg, transparent, rgba(255, 140, 40, 0.45), rgba(255, 230, 120, 0.4));
    filter: blur(2px);
    opacity: 0.9;
}

@keyframes kn-flame-flicker {
    0%, 100% { transform: scaleX(1) scaleY(1); opacity: 1; }
    50% { transform: scaleX(1.35) scaleY(0.7); opacity: 0.82; }
}

/* Impact blast */
.kn-blast {
    position: absolute;
    width: 64px;
    height: 64px;
    margin: -32px 0 0 -32px;
    z-index: 18;
    pointer-events: none;
}

.kn-blast-core {
    position: absolute;
    inset: 18px;
    border-radius: 50%;
    background: radial-gradient(circle, #fff 0%, var(--kn-fire-hot) 30%, var(--kn-fire) 55%, transparent 70%);
    animation: kn-blast-core 0.45s ease-out forwards;
}

.kn-blast-ring {
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    border: 2px solid color-mix(in srgb, var(--kn-fire) 80%, #fff);
    animation: kn-blast-ring 0.48s ease-out forwards;
}

.kn-blast-spark {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 5px;
    height: 5px;
    margin: -2px;
    border-radius: 50%;
    background: var(--kn-fire-hot);
    animation: kn-spark 0.45s ease-out forwards;
}

.kn-s1 { --sx: 22px; --sy: -16px; }
.kn-s2 { --sx: -20px; --sy: -14px; }
.kn-s3 { --sx: 16px; --sy: 18px; }
.kn-s4 { --sx: -18px; --sy: 16px; }

.kn-blast-smoke {
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 102, 105, 0.45), transparent 70%);
    animation: kn-smoke 0.5s ease-out forwards;
}

@keyframes kn-blast-core {
    0% { transform: scale(0.3); opacity: 1; }
    100% { transform: scale(1.6); opacity: 0; }
}

@keyframes kn-blast-ring {
    0% { transform: scale(0.4); opacity: 0.95; }
    100% { transform: scale(1.7); opacity: 0; }
}

@keyframes kn-spark {
    0% { transform: translate(0, 0) scale(1); opacity: 1; }
    100% { transform: translate(var(--sx), var(--sy)) scale(0.3); opacity: 0; }
}

@keyframes kn-smoke {
    0% { transform: scale(0.5); opacity: 0.6; }
    100% { transform: scale(1.8); opacity: 0; }
}

.kn-score-pop {
    position: absolute;
    z-index: 19;
    margin-left: -1rem;
    font-family: 'Roboto Mono', ui-monospace, monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--kn-accent);
    pointer-events: none;
    animation: kn-score-up 0.65s ease-out forwards;
}

@keyframes kn-score-up {
    from { transform: translateY(0); opacity: 1; }
    to { transform: translateY(-28px); opacity: 0; }
}

.kn-arena.is-hit-flash,
.gs-stage .kn-arena.is-hit-flash,
.game-arena.kn-arena.is-hit-flash {
    box-shadow: none !important;
}

.kn-arena.is-miss-flash,
.gs-stage .kn-arena.is-miss-flash {
    box-shadow: inset 0 0 0 2px color-mix(in srgb, #ca4754 55%, transparent) !important;
}

@media (max-width: 700px) {
    .kn-prompt { top: 0.75rem; font-size: clamp(1.2rem, 6vw, 1.6rem); }
    .kn-fig { bottom: 8px; margin-left: -22px; }
    .kn-launcher { left: 20px; }
}