* {
    box-sizing: border-box;
}

:root {
    --game-bg-image: url("assets/bg-main.png");
    --win-bg-image: url("assets/bg-win.png");
    --screen-min-height: clamp(640px, 96vh, 960px);
    --screen-min-height: clamp(640px, min(96vh, 100dvh), 960px);
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #1a0a0f var(--game-bg-image) center/cover no-repeat fixed;
    color: #f8f8ff;
    min-height: 100vh;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
    display: grid;
    place-items: center;
    padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
    overflow-x: hidden;
    overscroll-behavior: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

#app {
    width: min(440px, calc(100vw - 16px));
    max-width: 100vw;
}

.screen {
    display: none;
    width: 100%;
    background: rgba(20, 4, 8, 0.72) var(--game-bg-image) center/cover no-repeat;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 34px;
    padding: 16px 14px calc(18px + var(--safe-bottom));
    min-height: var(--screen-min-height);
    min-height: min(var(--screen-min-height), calc(var(--viewport-height, 100vh) - var(--safe-top) - var(--safe-bottom) - 24px));
    min-height: min(var(--screen-min-height), calc(var(--viewport-height, 100dvh) - var(--safe-top) - var(--safe-bottom) - 24px));
    height: min(var(--screen-min-height), calc(var(--viewport-height, 100vh) - var(--safe-top) - var(--safe-bottom) - 24px));
    height: min(var(--screen-min-height), calc(var(--viewport-height, 100dvh) - var(--safe-top) - var(--safe-bottom) - 24px));
    max-height: calc(var(--viewport-height, 100vh) - var(--safe-top) - var(--safe-bottom) - 16px);
    max-height: calc(var(--viewport-height, 100dvh) - var(--safe-top) - var(--safe-bottom) - 16px);
    backdrop-filter: blur(6px);
    box-shadow: 0 20px 46px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

.screen.active {
    display: block;
}

#gameScreen.active {
    display: flex;
    flex-direction: column;
}

#startScreen,
#endScreen {
    text-align: center;
}

#endScreen {
    position: relative;
}

#endScreen::before {
    content: "";
    position: absolute;
    inset: 0;
    background: #0b1042 var(--win-bg-image) center/cover no-repeat;
    opacity: 0;
    transform: scale(1);
    transition: transform 1200ms ease-out, opacity 180ms linear;
    z-index: 0;
}

#endScreen.win-state::before {
    opacity: 1;
    transform: scale(1.1);
}

#endScreen > .end-content {
    position: relative;
    z-index: 1;
}

#startScreen.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.start-content {
    width: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding-top: 36px;
    transform: translateY(-30px);
}

.start-arrow-ambient {
    position: absolute;
    top: 0;
    left: 0;
    width: 242px;
    height: auto;
    opacity: 0.88;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.35));
    animation: startArrowSweep 4.8s linear infinite;
    pointer-events: none;
}

.start-game-title {
    width: min(96%, 430px);
    height: auto;
    display: block;
}

.start-cta-btn {
    border: 0;
    background: transparent;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    cursor: pointer;
    transition: transform 0.14s ease;
    animation: ctaFloat 2.2s ease-in-out infinite;
}

.start-cta-btn:hover {
    transform: translateY(-3px) scale(1.01);
}

.start-cta-btn:active {
    transform: translateY(0) scale(0.995);
}

.start-cta-img {
    width: min(92%, 400px);
    max-width: 400px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.start-rules {
    position: absolute;
    left: 50%;
    bottom: -302px;
    transform: translateX(-50%);
    width: min(34%, 60px);
    height: auto;
    opacity: 0.3;
    pointer-events: auto;
    transition: opacity 180ms ease;
}

.start-rules:hover {
    opacity: 1;
}

.rules-modal {
    position: absolute;
    inset: 0;
    display: none;
    z-index: 20;
}

.rules-modal.open {
    display: block;
}

.rules-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.rules-close-btn {
    position: absolute;
    top: 54px;
    left: 14px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    z-index: 22;
}

.rules-popup-img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(94%, 430px);
    height: auto;
    z-index: 21;
}

@keyframes startArrowSweep {
    /* 1) left -> right (top lane) */
    0% {
        transform: translate(-280px, -130px) rotate(90deg);
    }
    12% {
        transform: translate(40px, -130px) rotate(90deg);
    }
    24% {
        transform: translate(460px, -130px) rotate(90deg);
    }
    24.4% {
        transform: translate(620px, -130px) rotate(90deg);
    }
    24.5% {
        transform: translate(620px, 290px) rotate(270deg);
    }

    /* 2) right -> left (bottom lane, flipped 180deg) */
    25% {
        transform: translate(460px, 290px) rotate(270deg);
    }
    37% {
        transform: translate(120px, 290px) rotate(270deg);
    }
    49% {
        transform: translate(-280px, 290px) rotate(270deg);
    }
    49.4% {
        transform: translate(-520px, 290px) rotate(270deg);
    }
    49.5% {
        transform: translate(-520px, -98px) rotate(90deg);
    }

    /* 3) left -> right (top lane #2) */
    50% {
        transform: translate(-280px, -98px) rotate(90deg);
    }
    62% {
        transform: translate(80px, -98px) rotate(90deg);
    }
    74% {
        transform: translate(470px, -98px) rotate(90deg);
    }
    74.4% {
        transform: translate(640px, -98px) rotate(90deg);
    }
    74.5% {
        transform: translate(640px, -130px) rotate(270deg);
    }

    /* 4) right -> left (top lane #1, flipped 180deg) */
    75% {
        transform: translate(460px, -130px) rotate(270deg);
    }
    87% {
        transform: translate(120px, -130px) rotate(270deg);
    }
    99.4% {
        transform: translate(-520px, -130px) rotate(270deg);
    }
    99.5% {
        transform: translate(-520px, -130px) rotate(90deg);
    }
    100% {
        transform: translate(-280px, -130px) rotate(90deg);
    }
}

@keyframes ctaFloat {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(0);
    }
}

.action-btn {
    border: none;
    background: #ff5b8a;
    color: #fff;
    font-size: 16px;
    padding: 12px 18px;
    border-radius: 10px;
    cursor: pointer;
}

.action-btn:hover {
    background: #ff76a0;
}

.end-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    padding-top: 6px;
}

#endScreen.win-state .end-content {
    justify-content: center;
    transform: translateY(-80px);
}

.end-game-over-sign {
    width: min(96%, 360px);
    height: auto;
    display: block;
    margin-top: -170px;
    transform-origin: 50% 0%;
    animation: endSignSway 2.8s ease-in-out infinite alternate;
}

.end-wrong-copy {
    width: min(92%, 260px);
    height: auto;
    display: block;
    margin-top: 24px;
}

.end-wrong-line {
    width: min(84%, 270px);
    height: 1.5px;
    border-radius: 999px;
    margin-top: -6px;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.15) 0%,
        rgba(255, 255, 255, 0.95) 50%,
        rgba(255, 255, 255, 0.15) 100%
    );
    background-size: 180% 100%;
    animation: wrongLineLtr 1.35s linear infinite;
}

#endScreen.win-state .end-wrong-line {
    display: none;
}

.end-laughing {
    width: min(86%, 320px);
    height: auto;
    display: block;
    margin-top: 44px;
    border-radius: 18px;
}

.end-playagain-btn {
    border: 0;
    background: transparent;
    padding: 0;
    cursor: pointer;
    margin-top: 56px;
    transition: transform 0.14s ease;
    width: 100%;
    display: flex;
    justify-content: center;
}

.end-playagain-btn:hover {
    transform: translateY(-2px);
}

.end-playagain-btn:active {
    transform: translateY(0);
}

.end-playagain-img {
    width: min(92%, 400px);
    max-width: 400px;
    height: auto;
    display: block;
    margin: 0 auto;
}

#endScreen.win-state .end-playagain-btn {
    position: absolute;
    left: 50%;
    bottom: 100px;
    width: auto;
    transform: translateX(-50%);
    margin-top: 0;
    z-index: 3;
    opacity: 0;
    pointer-events: none;
    transition: opacity 360ms ease;
}

#endScreen.win-state .end-playagain-img {
    width: min(88vw, 200px);
    max-width: 200px;
}

#endScreen.win-state.end-win-cta-reveal .end-playagain-btn {
    opacity: 1;
    pointer-events: auto;
    animation: winPlayAgainFloat 2.2s ease-in-out infinite;
}

@keyframes winPlayAgainFloat {
    0% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-4px);
    }
    100% {
        transform: translateX(-50%) translateY(0);
    }
}

.end-fallback-text {
    display: none;
}

.end-you-won-wrap,
.end-reward {
    display: none;
    opacity: 0;
    transform: scale(0.4);
}

.end-you-won-wrap {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
}

.end-you-won {
    width: min(92%, 310px);
    height: auto;
    margin-top: 0;
    margin-left: auto;
    margin-right: auto;
    transition: transform 520ms cubic-bezier(0.22, 1, 0.36, 1), opacity 420ms ease;
}

.end-reward {
    width: min(92%, 310px);
    height: auto;
    margin-top: 8px;
    transition: transform 620ms cubic-bezier(0.22, 1, 0.36, 1), opacity 520ms ease;
    transition-delay: 120ms;
}

#endScreen.win-state .end-you-won,
#endScreen.win-state .end-you-won-wrap,
#endScreen.win-state .end-reward {
    display: block;
}

#endScreen.win-state.end-win-reveal .end-you-won-wrap,
#endScreen.win-state.end-win-reveal .end-reward {
    opacity: 1;
    transform: scale(1);
}

.end-you-won-burst {
    position: absolute;
    left: 50%;
    top: calc(50% + 60px);
    width: 280px;
    height: 280px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    opacity: 0;
}

.end-you-won-burst span {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 3px;
    height: 34px;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
    transform-origin: 50% 116px;
    transform: rotate(var(--r)) translateY(-116px) scaleY(0.1);
    opacity: 0;
}

#endScreen.win-state.end-win-reveal .end-you-won-burst {
    opacity: 1;
}

#endScreen.win-state.end-win-reveal .end-you-won-burst span {
    animation: winBurstRay 900ms ease-out infinite;
    animation-delay: var(--d);
}

@keyframes winBurstRay {
    0% {
        opacity: 0;
        transform: rotate(var(--r)) translateY(-92px) scaleY(0.1);
    }
    25% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: rotate(var(--r)) translateY(-132px) scaleY(1);
    }
}

@keyframes endSignSway {
    0% {
        transform: rotate(-1.2deg);
    }
    100% {
        transform: rotate(1.2deg);
    }
}

@keyframes wrongLineLtr {
    0% {
        background-position: 170% 0;
        opacity: 0;
    }
    25% {
        opacity: 0.95;
    }
    45% {
        opacity: 1;
    }
    100% {
        background-position: -70% 0;
        opacity: 0;
    }
}


.hud {
    display: flex;
    justify-content: space-between;
    margin: 6px 8px 8px;
    font-weight: 700;
    font-size: 13px;
    opacity: 0.92;
}

.game-top-asset {
    width: min(96%, 430px);
    height: auto;
    display: block;
    margin: 4px auto 8px;
}

.hint {
    text-align: center;
    margin: 0 -14px -18px;
    padding: 12px 10px 14px;
    background: #000;
    opacity: 1;
    font-size: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

#dragControlWrap {
    position: absolute;
    left: 50%;
    bottom: 62px;
    transform: translateX(-50%);
    min-height: 70px;
    min-width: 88px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    touch-action: none;
}

#dragControl {
    width: 62px;
    height: 62px;
    border-radius: 50%;
    touch-action: none;
    user-select: none;
    cursor: grab;
    transition: transform 0.05s linear;
}

#gameStage {
    position: relative;
    margin-left: -14px;
    margin-right: -14px;
    width: calc(100% + 28px);
    border-radius: 0;
    overflow: hidden;
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    flex: 0 1 auto;
    min-height: 0;
}

#gameCanvas {
    width: 100%;
    height: auto;
    display: block;
    max-width: 100%;
    touch-action: none;
    background: #1a0a0f var(--game-bg-image) center/cover no-repeat;
    cursor: default;
}

/* Mobile: full-bleed app, softer corners, comfortable tap targets */
@media (max-width: 480px) {
    body {
        place-items: stretch;
        padding-left: max(var(--safe-left), 8px);
        padding-right: max(var(--safe-right), 8px);
    }

    #app {
        width: 100%;
        max-width: none;
    }

    .screen {
        border-radius: 22px;
        padding: 12px 10px calc(14px + var(--safe-bottom));
    }

    .hud {
        font-size: 12px;
        flex-wrap: wrap;
        gap: 4px;
    }

    .hint {
        font-size: 11px;
        padding-bottom: calc(14px + var(--safe-bottom));
    }

    .rules-close-btn {
        min-width: 44px;
        min-height: 44px;
    }

    #dragControl {
        width: 56px;
        height: 56px;
    }

}

/* Landscape phones: cap height so UI fits */
@media (max-height: 500px) and (orientation: landscape) {
    :root {
        --screen-min-height: min(100vh, 520px);
        --screen-min-height: min(100dvh, 520px);
    }

    .game-top-asset {
        width: min(70%, 280px);
    }
}

@media (hover: none) and (pointer: coarse) {
    #dragControlWrap {
        bottom: calc(54px + var(--safe-bottom));
    }
}

/* Small-height laptops and compact desktop windows */
@media (max-height: 860px) {
    :root {
        --screen-min-height: clamp(520px, 98vh, 840px);
        --screen-min-height: clamp(520px, min(98vh, 100dvh), 840px);
    }

    body {
        place-items: start center;
    }

    .screen {
        border-radius: 24px;
        padding: 10px 10px calc(12px + var(--safe-bottom));
    }

    .start-content {
        gap: 14px;
        padding-top: 10px;
        transform: translateY(0);
    }

    .start-game-title {
        width: min(88%, 320px);
    }

    .start-cta-img {
        width: min(86%, 300px);
    }

    .start-rules {
        bottom: -178px;
        width: min(28%, 52px);
    }

    .game-top-asset {
        width: min(80%, 300px);
        margin: 2px auto 4px;
    }

    .hud {
        margin: 2px 8px 4px;
        font-size: 12px;
    }

    .hint {
        margin: 0 -10px -12px;
        padding: 8px 8px 10px;
        font-size: 11px;
    }

    #dragControlWrap {
        bottom: 40px;
    }

    #dragControl {
        width: 54px;
        height: 54px;
    }

    .end-content {
        gap: 10px;
        padding-top: 2px;
    }

    #endScreen.win-state .end-content {
        transform: translateY(-26px);
    }

    .end-game-over-sign {
        width: min(90%, 280px);
        margin-top: -82px;
    }

    .end-wrong-copy {
        width: min(88%, 220px);
        margin-top: 8px;
    }

    .end-laughing {
        width: min(80%, 240px);
        margin-top: 14px;
    }

    .end-playagain-btn {
        margin-top: 18px;
    }

    .end-playagain-img {
        width: min(82%, 280px);
        max-width: 280px;
    }

    #endScreen.win-state .end-playagain-btn {
        bottom: 40px;
    }

    .end-you-won {
        width: min(84%, 250px);
    }

    .end-reward {
        width: min(84%, 240px);
        margin-top: 0;
    }
}