* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

:root {
    --game-width: 480px;
    --game-height: 640px;
    --ground-height: 100px;
    --player-size: 46px;
    --player-left: 70px;
    --obstacle-width: 56px;
    --obstacle-box-size: 56px;
    --platform-width: 110px;
    --platform-height: 22px;
    --obstacle-bottom: 85px;
    --hud-gap: 8px;
}

body {
    background: linear-gradient(180deg, #0d1117, #111827);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding: 20px;
}

.game-container {
    position: relative;
    width: min(100%, var(--game-width));
    height: min(92vh, var(--game-height));
    min-height: 580px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.1);
    background: #0f172a;
    isolation: isolate;
}

.start-actions {
    width: min(260px, 85vw);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
}

.start-actions .skin-selector {
    width: 100%;
}

.start-actions .skin-selector-btn,
.start-actions #startBtn {
    width: 100%;
}

/* PARALLAX */
.parallax {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.layer {
    position: absolute;
    inset: 0;
}

.sky {
    z-index: 1;
    background: url("./imagens/Infinite1.png") center center / cover no-repeat;
}

.layer-wrap {
    position: absolute;
    left: 0;
    width: 200%;
    display: flex;
    will-change: transform;
}

.layer-wrap .layer {
    position: relative;
    inset: auto;
    width: 50%;
    height: 100%;
    flex-shrink: 0;
    background-repeat: repeat-x;
    background-size: auto 100%;
}

.clouds-wrap {
    top: 250px;
    height: 45%;
    z-index: 2;
    animation: scrollClouds 42s linear infinite;
}

.clouds {
    background-image: url("./imagens/Infinite2.png");
    background-position: left top;
}

.field-wrap {
    bottom: 110px;
    height: 22%;
    z-index: 3;
    animation: scrollField 22s linear infinite;
}

.field {
    background-image: url("./imagens/Infinite3.png");
    background-position: left bottom;
}

.front-wrap {
    bottom: 85px;
    height: 32%;
    z-index: 4;
    animation: scrollFront 12s linear infinite;
}

.front {
    background-image: url("./imagens/Infinite4.png");
    background-position: left bottom;
}

.game-container.is-paused .clouds-wrap,
.game-container.is-paused .field-wrap,
.game-container.is-paused .front-wrap,
.game-container.is-paused .ground {
    animation-play-state: paused;
}

@keyframes scrollClouds {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

@keyframes scrollField {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

@keyframes scrollFront {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

/* HUD */
.hud {
    position: absolute;
    top: 18px;
    left: 14px;
    right: 190px;
    display: flex;
    gap: var(--hud-gap);
    z-index: 20;
    flex-wrap: wrap;
}

.hud-box {
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: bold;
    backdrop-filter: blur(4px);
    white-space: nowrap;
}

/* BOTÕES SUPERIORES */
.pause-btn,
.shop-btn {
    position: absolute;
    top: 18px;
    z-index: 40;
    border: none;
    border-radius: 10px;
    padding: 10px 14px;
    font-weight: bold;
    cursor: pointer;
    min-width: 92px;
}

.pause-btn {
    right: 14px;
    background: #ffcc00;
    color: #111111;
}

.shop-btn {
    right: 118px;
    background: #22c55e;
    color: #fff;
}

.pause-screen {
    pointer-events: none;
}

/* SELETOR DE SKINS */
.skin-selector {
    position: relative;
    width: min(240px, 90%);
}

.skin-selector-btn {
    width: 100%;
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    background: #fff;
    color: #111;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 1rem;
}

.skin-selector-options {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    width: 100%;
    background: #111827;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    overflow: hidden;
    z-index: 100;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
}

.skin-option {
    width: 100%;
    border: none;
    background: transparent;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    cursor: pointer;
    font-size: 1rem;
    text-align: left;
}

.skin-option:hover {
    background: rgba(255, 255, 255, 0.08);
}

.skin-selector-icon,
.skin-option-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    image-rendering: pixelated;
    flex-shrink: 0;
}

/* PLAYER */
.player {
    --player-rotation: 0deg;
    position: absolute;
    left: var(--player-left);
    bottom: var(--ground-height);
    width: var(--player-size);
    height: var(--player-size);
    border-radius: 10px;
    z-index: 12;
    animation: playerIdle 0.8s ease-in-out infinite;
    transform: rotate(var(--player-rotation));
    will-change: transform, bottom;
}

.player::after {
    content: "";
    position: absolute;
    inset: 8px;
    border-radius: 6px;
    background: transparent;
}

.skin-pessego {
    background: url("./imagens/Fruta1.png") center / cover no-repeat;
}

.skin-pessego::after,
.skin-maca::after,
.skin-manga::after {
    display: none;
}

.skin-maca {
    background: url("./imagens/Fruta2.png") center / cover no-repeat;
}

.skin-manga {
    background: url("./imagens/Fruta 3.png") center / cover no-repeat;
}

.skin-pytaia {
  background: url("./imagens/Fruta4.png") center / cover no-repeat;
}

.skin-pytaia::after {
  display: none;
}

@keyframes playerIdle {

    0%,
    100% {
        transform: translateY(0) rotate(var(--player-rotation));
    }

    50% {
        transform: translateY(-4px) rotate(var(--player-rotation));
    }
}

/* RASTRO DO PLAYER */
.player-trail {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 11;
    overflow: visible;
}

.trail-preview {
    width: 64px;
    height: 14px;
    border-radius: 999px;
    background: linear-gradient(90deg,
            red,
            orange,
            yellow,
            limegreen,
            deepskyblue,
            blue,
            violet);
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.2);
}

.trail-segment {
    position: absolute;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    background: linear-gradient(90deg,
            red,
            orange,
            yellow,
            limegreen,
            deepskyblue,
            blue,
            violet);
    opacity: 0.9;
    transform-origin: center;
    filter: blur(1px);
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.1);
}

@keyframes rainbowTrailPulse {
    0% {
        transform: scaleX(1) scaleY(1);
        opacity: 0.9;
    }

    50% {
        transform: scaleX(0.92) scaleY(1.08);
        opacity: 0.65;
    }

    100% {
        transform: scaleX(1) scaleY(1);
        opacity: 0.9;
    }
}

/* PLATAFORMAS */
.platform {
    position: absolute;
    width: var(--platform-width);
    height: var(--platform-height);
    border-radius: 5px;
    background: url("./imagens/Tijolos.avif") center / 100% 100% no-repeat;
    z-index: 10;
}


/* OBSTÁCULOS */
.obstacle {
    position: absolute;
    bottom: var(--obstacle-bottom);
    width: var(--obstacle-width);
    display: flex;
    flex-direction: column-reverse;
    align-items: stretch;
    gap: 0;
    z-index: 11;
}

.obstacle-box {
    display: block;
    width: var(--obstacle-box-size);
    height: var(--obstacle-box-size);
    margin: 0;
    padding: 0;
    background: url("./imagens/caixote-pixel.png") center center / 100% 100% no-repeat;
    flex-shrink: 0;
    line-height: 0;
}

.obstacle-box+.obstacle-box {
    margin-bottom: -24px;
}

/* ITENS */
.coin {
    position: absolute;
    width: 40px;
    height: 40px;
    background: url("./imagens/moeda.png") center / contain no-repeat;
    z-index: 13;
    animation: spinCoin 0.8s linear infinite;
    will-change: transform, left;
}

@keyframes spinCoin {
    0% {
        transform: scaleX(1);
    }

    50% {
        transform: scaleX(0.35);
    }

    100% {
        transform: scaleX(1);
    }
}

.special-item {
    position: absolute;
    width: 42px;
    height: 42px;
    background: url("./imagens/patinho.png") center / contain no-repeat;
    z-index: 14;
    animation: specialFloat 1s ease-in-out infinite;
    will-change: transform, left;
}

@keyframes specialFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

/* CHÃO */
.ground {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: var(--ground-height);
    background-image: url("./imagens/chão.jpg");
    background-repeat: repeat-x;
    background-position: 0 bottom;
    background-size: auto 100%;
    z-index: 5;
    animation: scrollGround 6s linear infinite;
}

@keyframes scrollGround {
    from {
        background-position: 0 bottom;
    }

    to {
        background-position: -300px bottom;
    }
}

/* TELAS */
.screen {
    position: absolute;
    inset: 0;
    z-index: 30;
    background: rgba(5, 10, 20, 0.82);
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 28px;
    text-align: center;
    gap: 14px;
}

.screen h1,
.screen h2 {
    font-size: clamp(2rem, 4vw, 2.4rem);
}

.screen p {
    max-width: 320px;
    line-height: 1.5;
    font-size: clamp(1rem, 2.4vw, 1.15rem);
}

.screen button {
    border: none;
    border-radius: 12px;
    padding: 12px 18px;
    font-size: 1rem;
    background: #00d8ff;
    color: #111;
    font-weight: bold;
    cursor: pointer;
}

.hidden {
    display: none;
}

.hint {
    position: absolute;
    bottom: 18px;
    width: 100%;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.92rem;
    z-index: 12;
    pointer-events: none;
    padding: 0 12px;
}

/* LOJA */
.shop-screen {
    z-index: 45;
    justify-content: flex-start;
    padding: 24px 18px 20px;
    overflow-y: auto;
    overflow-x: hidden;
}

.shop-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: min(360px, 100%);
    margin: 8px auto 0;
}

.shop-item {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.shop-item h3 {
    font-size: 1rem;
}

.shop-item p {
    font-size: 0.95rem;
}

.shop-skin-img {
    width: 72px;
    height: 72px;
    object-fit: contain;
    image-rendering: pixelated;
    margin: 0 auto 6px;
    display: block;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    padding: 6px;
}

.shop-item.locked .shop-skin-img {
    opacity: 0.5;
    filter: grayscale(100%);
}

.shop-item.unlocked .shop-skin-img {
    opacity: 1;
    filter: none;
}

.shop-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    width: min(360px, 100%);
    margin: 12px auto 0;
}

.shop-actions button {
    min-width: 150px;
}

.shop-screen h2 {
    margin-top: 4px;
}

.shop-screen>p {
    margin-bottom: 8px;
}

.shop-screen::-webkit-scrollbar {
    width: 8px;
}

.shop-screen::-webkit-scrollbar-track {
    background: transparent;
}

.shop-screen::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.18);
    border-radius: 999px;
}

@media (max-width: 768px) {
    :root {
        --game-height: 100vh;
        --platform-width: 100px;
        --platform-height: 20px;
    }

    body {
        padding: 0;
    }

    .game-container {
        width: 100%;
        height: 100vh;
        min-height: 100vh;
        border-radius: 0;
        border: none;
    }

    .hud {
        top: 12px;
        left: 10px;
        right: 10px;
        gap: 6px;
    }

    .hud-box {
        font-size: 0.85rem;
        padding: 7px 10px;
    }

    .pause-btn {
        top: auto;
        bottom: 72px;
        right: 12px;
        padding: 10px 12px;
        font-size: 0.9rem;
        min-width: 96px;
    }

    .shop-btn {
        top: auto;
        bottom: 120px;
        right: 12px;
        min-width: 96px;
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .screen {
        padding: 24px 18px;
    }

    .start-screen button,
    .game-over-screen button {
        width: min(260px, 85vw);
    }

    .hint {
        bottom: 16px;
        font-size: 0.82rem;
    }

    .shop-screen {
        padding: 20px 14px 18px;
    }

    .shop-list,
    .shop-actions {
        width: min(320px, 100%);
    }

    .shop-skin-img {
        width: 64px;
        height: 64px;
    }
}

@media (max-width: 480px) {
    :root {
        --player-size: 42px;
        --player-left: 42px;
        --obstacle-width: 48px;
        --obstacle-box-size: 48px;
        --ground-height: 92px;
        --obstacle-bottom: 80px;
        --platform-width: 92px;
        --platform-height: 18px;
    }

    .clouds-wrap {
        height: 40%;
    }

    .field-wrap {
        bottom: 64px;
        height: 18%;
    }

    .front-wrap {
        height: 28%;
    }

    .hud {
        top: 10px;
        left: 8px;
        right: 8px;
        gap: 6px;
    }

    .hud-box {
        font-size: 0.78rem;
        padding: 6px 8px;
        border-radius: 10px;
    }

    .pause-btn {
        bottom: 66px;
        right: 8px;
        padding: 9px 10px;
        min-width: 88px;
        font-size: 0.82rem;
    }

    .shop-btn {
        bottom: 114px;
        right: 8px;
        min-width: 88px;
        font-size: 0.82rem;
        padding: 9px 10px;
    }

    .skin-selector {
        width: min(220px, 100%);
    }

    .player {
        border-radius: 8px;
    }

    .obstacle-box+.obstacle-box {
        margin-bottom: -20px;
    }

    .coin {
        width: 34px;
        height: 34px;
    }

    .screen {
        gap: 12px;
    }

    .screen p {
        max-width: 280px;
    }

    .hint {
        font-size: 0.76rem;
        bottom: 12px;
    }

    .shop-screen {
        padding: 18px 12px 16px;
    }

    .shop-item {
        padding: 14px 12px;
    }

    .shop-item h3 {
        font-size: 0.95rem;
    }

    .shop-item p {
        font-size: 0.9rem;
    }

    .shop-actions button {
        min-width: 132px;
    }
}

@media (max-width: 360px) {
    :root {
        --player-size: 38px;
        --player-left: 32px;
        --obstacle-width: 44px;
        --obstacle-box-size: 44px;
        --platform-width: 80px;
        --platform-height: 16px;
    }

    .hud-box {
        font-size: 0.72rem;
        padding: 5px 7px;
    }

    .pause-btn,
    .shop-btn {
        min-width: 80px;
        font-size: 0.76rem;
    }

    .screen h1,
    .screen h2 {
        font-size: 1.7rem;
    }

    .obstacle-box+.obstacle-box {
        margin-bottom: -18px;
    }
}