html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    min-height: 100%;
    overflow: hidden;
    overscroll-behavior: none;
    background:
        radial-gradient(circle at top left, rgba(139, 92, 246, 0.16), transparent 34%),
        radial-gradient(circle at bottom right, rgba(250, 204, 21, 0.2), transparent 36%),
        linear-gradient(135deg, #fffaf0 0%, #fef3c7 45%, #f5f3ff 100%);
    font-family: Arial, sans-serif;
}

body {
    position: fixed;
    inset: 0;
}

#game-wrapper {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    height: var(--app-height, 100dvh);
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    visibility: visible;
    background:
        radial-gradient(circle at 15% 18%, rgba(124, 58, 237, 0.14), transparent 28%),
        radial-gradient(circle at 80% 78%, rgba(34, 197, 94, 0.1), transparent 30%),
        linear-gradient(135deg, #fffaf0 0%, #fff7d6 50%, #f3e8ff 100%);
}

#unity-container,
#unity-container.unity-desktop,
#unity-container.unity-mobile {
    width: min(100vw, calc(var(--app-height, 100dvh) * 16 / 9));
    height: min(var(--app-height, 100dvh), calc(100vw * 9 / 16));
    max-width: 100vw;
    max-height: var(--app-height, 100dvh);
    aspect-ratio: 16 / 9;
    position: relative;
    background: #fff7d6;
    border-radius: clamp(8px, 1.4vw, 22px);
    overflow: hidden;
    box-shadow: 0 24px 70px rgba(76, 29, 149, 0.22);
    left: auto;
    top: auto;
    transform: none;
}

#unity-canvas,
.unity-mobile #unity-canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
    background: #fff7d6;
}

#unity-footer {
    display: none !important;
}

#unity-logo,
.unity-logo,
#unity-loading-logo,
#unity-logo-title-footer,
#unity-build-title,
#unity-fullscreen-button {
    display: none !important;
}

#unity-loading-bar {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    display: none;
    align-items: center !important;
    justify-content: center !important;
    padding: clamp(10px, 3vw, 24px) !important;
    box-sizing: border-box !important;
    z-index: 10 !important;
    overflow: hidden !important;
    background:
        radial-gradient(circle at top left, rgba(124, 58, 237, 0.14), transparent 34%),
        radial-gradient(circle at bottom right, rgba(250, 204, 21, 0.24), transparent 36%),
        linear-gradient(135deg, #fffaf0 0%, #fff7d6 50%, #f5f3ff 100%) !important;
}

#unity-loading-bar.unity-loading-visible {
    display: flex !important;
}

#unity-loading-bar.unity-loading-hidden {
    display: none !important;
    pointer-events: none !important;
    visibility: hidden !important;
}

#neuro-loading-card {
    width: min(520px, 72%) !important;
    max-width: 520px !important;
    min-width: 0 !important;
    background: rgba(255, 255, 255, 0.92) !important;
    border: 2px solid rgba(124, 58, 237, 0.18) !important;
    border-radius: clamp(14px, 2vw, 28px) !important;
    padding: clamp(14px, 3vw, 34px) clamp(16px, 3.2vw, 36px) clamp(14px, 2.8vw, 30px) !important;
    text-align: center !important;
    box-shadow: 0 20px 55px rgba(76, 29, 149, 0.18) !important;
    margin: 0 auto !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
}

.hidden {
    display: none !important;
}

/* Start screen — matches ABC Type prestart design; logo instead of book icon. */
#nn-start-screen {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding:
        var(--safe-top, 0px)
        var(--safe-right, 0px)
        var(--safe-bottom, 0px)
        var(--safe-left, 0px);
    box-sizing: border-box;
    background:
        radial-gradient(circle at top left, rgba(139, 92, 246, 0.16), transparent 34%),
        radial-gradient(circle at bottom right, rgba(250, 204, 21, 0.2), transparent 36%),
        linear-gradient(135deg, #fffaf0 0%, #fef3c7 45%, #f5f3ff 100%);
}

#nn-start-screen.nn-start-hidden {
    display: none !important;
    pointer-events: none !important;
}

#nn-start-card {
    width: min(520px, 86%);
    max-width: 520px;
    background: rgba(255, 255, 255, 0.94);
    border: 2px solid rgba(124, 58, 237, 0.18);
    border-radius: clamp(14px, 2vw, 28px);
    padding: clamp(18px, 3vw, 34px) clamp(18px, 3.2vw, 36px);
    text-align: center;
    box-shadow: 0 20px 55px rgba(76, 29, 149, 0.18);
    box-sizing: border-box;
}

.nn-logo,
#nn-start-logo,
#neuro-loading-icon.nn-logo {
    width: clamp(72px, 14vw, 96px) !important;
    max-width: 96px !important;
    height: auto !important;
    display: block !important;
    margin: 0 auto clamp(6px, 1vw, 12px) auto !important;
    object-fit: contain !important;
    line-height: normal !important;
    font-size: inherit !important;
}

#nn-start-title {
    font-size: clamp(22px, 3.4vw, 36px);
    line-height: 1.12;
    font-weight: 900;
    color: #2d1b69;
    letter-spacing: 0.5px;
}

#nn-start-text {
    margin-top: clamp(6px, 1vw, 10px);
    font-size: clamp(12px, 1.8vw, 17px);
    line-height: 1.35;
    font-weight: 700;
    color: #6d5b8f;
}

#nn-start-button {
    margin-top: clamp(14px, 2vw, 22px);
    min-width: min(280px, 80%);
    min-height: 52px;
    padding: 12px 24px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(90deg, #7c3aed, #6366f1);
    color: #ffffff;
    font-size: clamp(16px, 2.2vw, 20px);
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(76, 29, 149, 0.24);
}

#nn-start-button:active {
    transform: scale(0.98);
}

#neuro-loading-title {
    font-size: clamp(20px, 3.4vw, 36px) !important;
    line-height: 1.12 !important;
    font-weight: 900 !important;
    color: #2d1b69 !important;
    letter-spacing: 0.5px !important;
    margin: 0 !important;
    white-space: normal !important;
    overflow-wrap: break-word !important;
}

#neuro-loading-text {
    margin-top: clamp(4px, 0.9vw, 8px) !important;
    font-size: clamp(11px, 1.7vw, 17px) !important;
    line-height: 1.25 !important;
    font-weight: 700 !important;
    color: #6d5b8f !important;
}

#unity-progress-bar-empty {
    position: relative !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
    transform: none !important;
    width: min(420px, 100%) !important;
    height: clamp(10px, 1.4vw, 18px) !important;
    margin: clamp(12px, 2vw, 24px) auto 0 !important;
    background: rgba(255, 255, 255, 0.96) !important;
    border: 2px solid rgba(124, 58, 237, 0.25) !important;
    border-radius: 999px !important;
    overflow: hidden !important;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.08) !important;
    box-sizing: border-box !important;
}

#unity-progress-bar-full {
    position: relative !important;
    left: auto !important;
    top: auto !important;
    height: 100% !important;
    width: 0%;
    background: linear-gradient(90deg, #7c3aed, #38bdf8) !important;
    border-radius: 999px !important;
    transition: width 0.15s ease !important;
}

#unity-warning {
    position: absolute;
    left: 50%;
    top: 5%;
    transform: translate(-50%);
    background: white;
    padding: 10px;
    display: none;
    z-index: 20;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(76, 29, 149, 0.15);
}

@media screen and (max-width: 700px) {
    #neuro-loading-card {
        width: 76% !important;
        padding: 14px 16px !important;
    }

    #neuro-loading-title {
        font-size: clamp(18px, 5vw, 28px) !important;
    }

    #neuro-loading-text {
        font-size: clamp(10px, 3vw, 14px) !important;
    }

    .nn-logo,
    #nn-start-logo,
    #neuro-loading-icon.nn-logo {
        width: clamp(64px, 18vw, 84px) !important;
        max-width: 84px !important;
    }
}