/* ── Game Overlay ── */
#gameOverlay {
    display: none;
    width: 94%;
    max-width: calc(85vh * 0.96);
    height: auto;
    aspect-ratio: 24 / 25;
    max-height: 85vh;
    box-sizing: border-box;
    z-index: 99999;
    background: #000;
    flex-direction: column;
    overflow: hidden;
    border: 3px solid cyan;
    box-shadow:
        0 0 15px cyan,
        0 0 40px rgba(0, 255, 255, 0.3),
        inset 0 0 30px rgba(0, 0, 0, 0.5);
    border-radius: 6px;
}

#gameOverlay.active {
    display: flex;
}

/* Dim the page behind the game */
#gameBackdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.85);
    z-index: 99998;
    justify-content: center;
    align-items: center;
}

#gameBackdrop.active {
    display: flex;
}

/* ── HUD (top bar) ── */
.game-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: rgba(0, 0, 0, 0.85);
    border-bottom: 2px solid cyan;
    box-shadow: 0 2px 15px rgba(0, 255, 255, 0.4);
    z-index: 2;
    flex-shrink: 0;
}

.game-score-label,
.game-high-label {
    font-family: 'Neon', cursive;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0;
}

.game-score-value {
    font-family: 'Neon', cursive;
    font-size: 2rem;
    color: cyan;
    text-shadow:
        0 0 5px cyan,
        0 0 15px cyan,
        0 0 30px rgba(0, 255, 255, 0.5);
    margin: 0;
    line-height: 1;
}

.game-high-value {
    font-family: 'Neon', cursive;
    font-size: 2rem;
    color: magenta;
    text-shadow:
        0 0 5px magenta,
        0 0 15px magenta,
        0 0 30px rgba(255, 0, 255, 0.5);
    margin: 0;
    line-height: 1;
}

.game-score-box,
.game-high-box {
    text-align: center;
}

.game-exit-btn {
    font-family: 'Neon', cursive;
    font-size: 1rem;
    color: red;
    background: none;
    border: 2px solid red;
    padding: 4px 14px;
    cursor: pointer;
    text-shadow: 0 0 5px red;
    box-shadow: 0 0 8px rgba(255, 0, 0, 0.3);
    transition: background 0.3s, box-shadow 0.3s;
    letter-spacing: 1px;
}

.game-exit-btn:hover {
    background: rgba(255, 0, 0, 0.15);
    box-shadow: 0 0 15px red;
}

/* ── Game Area ── */
.game-area {
    flex: 1;
    position: relative;
    overflow: hidden;
    background-color: #000;
    background-image: url('../assets/sprites/bg_anim.gif');
    background-size: 100% 100%;
    background-position: center bottom;
    background-repeat: no-repeat;
}

/* ── Ground line ── */
.game-ground {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: cyan;
    box-shadow: 0 0 8px cyan, 0 -2px 15px rgba(0, 255, 255, 0.3);
    z-index: 1;
}

/* ── Character ── */
.game-character {
    position: absolute;
    bottom: 4px;
    left: 10%;
    width: 80px;
    height: 80px;
    z-index: 3;
    transition: none;
}

.game-character img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: auto;
}

.game-character.jumping {
    animation: charJump 0.5s ease-out forwards;
}

@keyframes charJump {
    0%   { transform: translateY(0); }
    40%  { transform: translateY(-160px); }
    50%  { transform: translateY(-165px); }
    100% { transform: translateY(0); }
}

/* ── Obstacle ── */
.game-obstacle {
    position: absolute;
    bottom: 4px;
    width: 50px;
    height: 60px;
    z-index: 2;
}

.game-obstacle img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ── Start Screen ── */
.game-start-screen,
.game-over-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.75);
    z-index: 10;
    gap: 20px;
}

.game-start-title {
    font-family: 'Neon', cursive;
    font-size: 3rem;
    color: white;
    text-shadow:
        0 0 5px cyan,
        0 0 15px cyan,
        0 0 30px magenta,
        0 0 50px magenta;
    text-align: center;
    animation: loaderFlicker 2s ease-in-out infinite;
}

.game-start-prompt,
.game-over-prompt {
    font-family: 'Neon', cursive;
    font-size: 1.2rem;
    color: cyan;
    text-shadow: 0 0 8px cyan;
    animation: promptPulse 1.5s ease-in-out infinite;
    text-align: center;
}

@keyframes promptPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.game-over-title {
    font-family: 'Neon', cursive;
    font-size: 3.5rem;
    color: red;
    text-shadow:
        0 0 5px red,
        0 0 15px red,
        0 0 30px rgba(255, 0, 0, 0.6);
    text-align: center;
}

.game-over-score {
    font-family: 'Neon', cursive;
    font-size: 1.8rem;
    color: white;
    text-shadow: 0 0 10px cyan;
    text-align: center;
}

.game-over-high {
    font-family: 'Neon', cursive;
    font-size: 1.2rem;
    color: magenta;
    text-shadow: 0 0 8px magenta;
    text-align: center;
}

/* Score pop animation on point */
.game-score-value.pop {
    animation: scorePop 0.3s ease-out;
}

@keyframes scorePop {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.4); text-shadow: 0 0 10px cyan, 0 0 25px cyan, 0 0 50px white; }
    100% { transform: scale(1); }
}

/* ── Mobile tap zone ── */
.game-tap-zone {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 4;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    #gameOverlay {
        width: 96%;
        max-width: calc(90vh * 0.96);
        max-height: 90vh;
    }

    .game-hud {
        padding: 8px 14px;
    }

    .game-score-value,
    .game-high-value {
        font-size: 1.5rem;
    }

    .game-score-label,
    .game-high-label {
        font-size: 0.65rem;
    }

    .game-exit-btn {
        font-size: 0.8rem;
        padding: 3px 10px;
    }

    .game-character {
        width: 60px;
        height: 60px;
        left: 8%;
    }

    .game-obstacle {
        width: 40px;
        height: 48px;
    }

    @keyframes charJump {
        0%   { transform: translateY(0); }
        40%  { transform: translateY(-120px); }
        50%  { transform: translateY(-125px); }
        100% { transform: translateY(0); }
    }

    .game-start-title {
        font-size: 2rem;
    }

    .game-over-title {
        font-size: 2.5rem;
    }

    .game-start-prompt,
    .game-over-prompt {
        font-size: 1rem;
    }

    .game-over-score {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    #gameOverlay {
        width: 96%;
        max-width: calc(92vh * 0.96);
        max-height: 92vh;
        border-width: 2px;
    }

    .game-hud {
        padding: 6px 10px;
    }

    .game-character {
        width: 44px;
        height: 44px;
        left: 6%;
    }

    .game-obstacle {
        width: 30px;
        height: 36px;
    }

    @keyframes charJump {
        0%   { transform: translateY(0); }
        40%  { transform: translateY(-85px); }
        50%  { transform: translateY(-90px); }
        100% { transform: translateY(0); }
    }

    .game-score-value,
    .game-high-value {
        font-size: 1rem;
    }

    .game-score-label,
    .game-high-label {
        font-size: 0.55rem;
    }

    .game-exit-btn {
        font-size: 0.7rem;
        padding: 2px 8px;
    }

    .game-start-title {
        font-size: 1.5rem;
    }

    .game-over-title {
        font-size: 1.8rem;
    }

    .game-start-prompt,
    .game-over-prompt {
        font-size: 0.85rem;
    }

    .game-over-score {
        font-size: 1.1rem;
    }

    .game-over-high {
        font-size: 0.9rem;
    }
}

/* Landscape phones — shorter viewport, wider game */
@media (max-height: 500px) {
    #gameOverlay {
        width: 60%;
        max-width: calc(94vh * 0.96);
        max-height: 94vh;
    }

    .game-hud {
        padding: 4px 10px;
    }

    .game-score-value,
    .game-high-value {
        font-size: 1rem;
    }

    .game-score-label,
    .game-high-label {
        font-size: 0.5rem;
    }

    .game-character {
        width: 40px;
        height: 40px;
    }

    .game-obstacle {
        width: 28px;
        height: 34px;
    }

    @keyframes charJump {
        0%   { transform: translateY(0); }
        40%  { transform: translateY(-70px); }
        50%  { transform: translateY(-75px); }
        100% { transform: translateY(0); }
    }

    .game-start-title {
        font-size: 1.3rem;
    }

    .game-over-title {
        font-size: 1.5rem;
    }

    .game-start-prompt,
    .game-over-prompt {
        font-size: 0.8rem;
    }
}