:root {
    --bg-dark: #0d0d0d;
    --bg-wall: #1a1a1a;
    --bg-object: #2d2d2d;
    --accent-red: #8b0000;
    --accent-amber: #b8860b;
    --accent-cyan: #4a7c7c;
    --text-dim: #666;
    --text-bright: #aaa;
    --health-bar: #5a5a5a;
    --health-fill: #4a7c7c;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--bg-dark);
    overflow: hidden;
    font-family: 'Courier New', monospace;
}

body.start-page {
    cursor: default;
}

#game-container.game-started {
    cursor: none;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

#game-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#minimap {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 150px;
    height: 150px;
    border: 2px solid var(--text-dim);
    background: rgba(0, 0, 0, 0.7);
}

#minimap-canvas {
    width: 100%;
    height: 100%;
}

#inventory {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--text-dim);
    padding: 10px;
}

.inventory-title {
    color: var(--text-dim);
    font-size: 0.7rem;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.inventory-slots {
    display: flex;
    gap: 8px;
}

.inv-slot {
    width: 50px;
    height: 50px;
    background: var(--bg-object);
    border: 1px solid var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.inv-slot.has-item {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(74, 124, 124, 0.3);
}

#objective {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-dim);
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.7);
    padding: 8px 20px;
    border: 1px solid var(--text-dim);
}

#interaction-prompt {
    position: absolute;
    bottom: 150px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--accent-cyan);
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px 30px;
    border: 1px solid var(--accent-cyan);
    animation: pulse 1.5s infinite;
}

#interaction-prompt.hidden {
    display: none;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

#puzzle-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: all;
    cursor: default;
}

#puzzle-overlay.hidden {
    display: none;
}

.puzzle-window {
    width: 80%;
    max-width: 700px;
    max-height: 80%;
    background: var(--bg-wall);
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 30px rgba(74, 124, 124, 0.3);
    overflow: hidden;
}

.puzzle-header {
    background: var(--bg-object);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--text-dim);
}

#puzzle-title {
    color: var(--accent-cyan);
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.close-btn {
    background: none;
    border: 1px solid var(--text-dim);
    color: var(--text-dim);
    width: 30px;
    height: 30px;
    cursor: pointer;
    font-size: 1rem;
}

.close-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.puzzle-content {
    padding: 30px;
    color: var(--text-bright);
    overflow-y: auto;
    max-height: calc(80vh - 60px);
}

#start-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    cursor: default;
}

.start-content {
    text-align: center;
    color: var(--text-bright);
    position: relative;
    z-index: 1;
}

.start-content h1 {
    font-size: 4rem;
    letter-spacing: 10px;
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(74, 124, 124, 0.5);
    margin-bottom: 20px;
}

.start-content p {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 40px;
}

.start-btn {
    background: transparent;
    border: 2px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 15px 50px;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    cursor: pointer;
    letter-spacing: 3px;
    transition: all 0.3s;
}

.start-btn:hover {
    background: var(--accent-cyan);
    color: var(--bg-dark);
    box-shadow: 0 0 20px rgba(74, 124, 124, 0.5);
}

.controls-hint {
    margin-top: 30px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

#start-screen .bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--accent-cyan);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--accent-amber);
    top: 60%;
    left: 80%;
    animation-delay: -5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--accent-cyan);
    top: 70%;
    left: 20%;
    animation-delay: -10s;
}

.shape-4 {
    width: 250px;
    height: 250px;
    background: var(--accent-red);
    top: 20%;
    left: 70%;
    animation-delay: -15s;
}

.shape-5 {
    width: 100px;
    height: 100px;
    background: var(--accent-amber);
    top: 40%;
    left: 40%;
    animation-delay: -7s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(30px, -30px) rotate(5deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }

    75% {
        transform: translate(20px, 30px) rotate(3deg);
    }
}

#victory-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    cursor: default;
}

#victory-screen .bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

#victory-screen.hidden {
    display: none;
}

.victory-content {
    text-align: center;
    color: var(--text-bright);
}

.victory-content h1 {
    font-size: 4rem;
    letter-spacing: 10px;
    color: var(--accent-cyan);
    text-shadow: 0 0 30px rgba(74, 124, 124, 0.8);
    margin-bottom: 20px;
    animation: glow 2s infinite;
}

@keyframes glow {

    0%,
    100% {
        text-shadow: 0 0 30px rgba(74, 124, 124, 0.8);
    }

    50% {
        text-shadow: 0 0 60px rgba(74, 124, 124, 1);
    }
}

.victory-content p {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 40px;
}

.puzzle-question {
    background: var(--bg-object);
    padding: 20px;
    margin: 15px 0;
    border: 1px solid var(--text-dim);
}

.puzzle-question p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.puzzle-options {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.puzzle-btn {
    background: transparent;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 12px 25px;
    font-family: 'Courier New', monospace;
    cursor: pointer;
    transition: all 0.3s;
}

.puzzle-btn:hover {
    background: var(--accent-cyan);
    color: var(--bg-dark);
}

.puzzle-btn.correct {
    background: #2a5a2a;
    border-color: #4a8a4a;
    color: #4a8a4a;
}

.puzzle-btn.wrong {
    background: #5a2a2a;
    border-color: #8a4a4a;
    color: #8a4a4a;
}

.puzzle-input-area {
    margin: 20px 0;
}

.puzzle-input-area input {
    background: var(--bg-dark);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    padding: 12px 20px;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    width: 100%;
    max-width: 300px;
}

.puzzle-feedback {
    margin: 15px 0;
    padding: 15px;
    border: 1px solid;
}

.puzzle-feedback.success {
    background: rgba(42, 90, 42, 0.3);
    border-color: #4a8a4a;
    color: #4a8a4a;
}

.puzzle-feedback.error {
    background: rgba(90, 42, 42, 0.3);
    border-color: #8a4a4a;
    color: #8a4a4a;
}

.key-item {
    display: inline-block;
    background: var(--bg-object);
    border: 1px solid var(--accent-amber);
    padding: 10px 20px;
    margin: 10px;
    color: var(--accent-amber);
    font-size: 0.9rem;
}

.door-locked {
    background: rgba(139, 0, 0, 0.3);
    border: 1px solid var(--accent-red);
    padding: 20px;
    text-align: center;
    color: var(--accent-red);
}

.door-unlocked {
    background: rgba(42, 90, 42, 0.3);
    border: 1px solid #4a8a4a;
    padding: 20px;
    text-align: center;
    color: #4a8a4a;
    cursor: pointer;
}

.door-unlocked:hover {
    background: rgba(42, 90, 42, 0.5);
}

#skip-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(142, 142, 142, 0.5);
    border: 1px solid #adadad;
    color: #adadad;
    padding: 8px 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    cursor: pointer;
    pointer-events: all;
    z-index: 50;
}

#skip-btn:hover {
    background: #adadad;
    color: #0d0d0d;
}