:root {
    --deep-ocean: #0a192f;
    --water-blue: #1e3a8a;
    --bubble-color: rgba(255, 255, 255, 0.4);
    --bubble-border: rgba(255, 255, 255, 0.6);
    --accent: #2dd4bf;
    --text-white: #f8fafc;
    --font-main: 'Outfit', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

body {
    background-color: var(--deep-ocean);
    color: var(--text-white);
    font-family: var(--font-main);
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Background Effects */
.underwater-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #1e40af, #0f172a);
    z-index: -1;
}

.light-ray {
    position: absolute;
    top: -20%;
    left: 10%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    transform: rotate(-15deg);
    animation: rays 10s infinite alternate linear;
}

@keyframes rays {
    from {
        transform: rotate(-15deg) translateX(-50px);
    }

    to {
        transform: rotate(-10deg) translateX(50px);
    }
}

/* Game Layout */
.game-container {
    width: 100%;
    height: 100%;
    max-width: 800px;
    max-height: 900px;
    display: flex;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
}

.ui-panel {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ui-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.label {
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    font-weight: 700;
}

.value {
    font-size: 2rem;
    font-weight: 900;
}

#game-canvas-wrapper {
    flex: 1;
    position: relative;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 30px;
    border: 2px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
    box-shadow: inset 0 0 50px rgba(0, 0, 0, 0.3);
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Overlays */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(5px);
    z-index: 10;
    text-align: center;
    padding: 20px;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.visible {
    opacity: 1 !important;
    pointer-events: all !important;
}

.hidden {
    opacity: 0 !important;
    pointer-events: none !important;
}

.loader-bar {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 20px;
    overflow: hidden;
}

#transition-progress {
    width: 0%;
    height: 100%;
    background: var(--accent);
    transition: width 2s linear;
}

h2 {
    font-size: 3rem;
    margin: 10px 0;
}

h1 {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(45deg, #fff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.primary-btn {
    margin-top: 30px;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    background: var(--accent);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 10px 25px rgba(45, 212, 191, 0.3);
    transition: all 0.3s ease;
}

.primary-btn:hover {
    transform: translateY(-3px);
    background: #14b8a6;
    box-shadow: 0 15px 30px rgba(45, 212, 191, 0.4);
}

.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

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

.bottom-panel {
    justify-content: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}