:root {
    --bg: #1c1917;
    --brass: #b45309;
    --brass-light: #d97706;
    --parchment: #fef3c7;
    --iron: #44403c;
    --danger: #dc2626;
    --success: #16a34a;
}

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

body {
    background-color: var(--bg);
    background-image: radial-gradient(circle at center, #292524 0%, #1c1917 100%);
    color: var(--parchment);
    font-family: 'Special Elite', cursive, monospace;
    overflow: hidden;
    user-select: none;
}

/* Modals */
.modal {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.modal.open {
    opacity: 1;
    pointer-events: auto;
}
.modal-content {
    background: #292524;
    border: 4px solid var(--brass);
    border-radius: 8px;
    padding: 2.5rem;
    max-w: 450px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.8), inset 0 0 15px rgba(180, 83, 9, 0.4);
}
.modal-content h1 {
    color: var(--brass-light);
    margin-bottom: 1rem;
    font-size: 2.2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    letter-spacing: 2px;
}
.modal-content p { margin-bottom: 1.5rem; line-height: 1.6; color: #d6d3d1; }

input {
    width: 100%;
    background: #1c1917;
    border: 2px solid var(--iron);
    color: var(--parchment);
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-family: inherit;
    font-size: 1.2rem;
    outline: none;
    text-align: center;
}
input:focus { border-color: var(--brass); box-shadow: 0 0 10px rgba(180, 83, 9, 0.5); }

button {
    width: 100%;
    background: linear-gradient(to bottom, var(--brass-light), var(--brass));
    color: #1c1917;
    border: 2px solid #78350f;
    padding: 0.75rem;
    font-family: inherit;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}
button:disabled { background: var(--iron); color: #78716c; border-color: #292524; cursor: not-allowed; box-shadow: none; }
button:not(:disabled):hover { filter: brightness(1.2); transform: translateY(-1px); }
button:not(:disabled):active { transform: translateY(2px); box-shadow: 0 1px 2px rgba(0,0,0,0.3); }
button.secondary { background: transparent; border: 2px solid var(--brass); color: var(--brass-light); box-shadow: none; }
button.secondary:hover { background: rgba(180, 83, 9, 0.1); }

/* Game Layout */
.game-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: #1c1917;
    border-bottom: 4px solid var(--iron);
    font-size: 1.2rem;
}
.exit-link { color: var(--danger); text-decoration: none; font-weight: bold; }
.exit-link:hover { color: #f87171; }

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 3rem 1rem;
}

.prompt-area {
    text-align: center;
}
.prompt-area h2 {
    color: #a8a29e;
    font-size: 1.2rem;
    letter-spacing: 2px;
}
#target-form {
    font-size: 2.5rem;
    color: var(--brass-light);
    margin-top: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

/* Factory Floor */
.factory-floor {
    width: 100%;
    max-w: 800px;
    margin: 2rem 0;
}

.belt-container {
    position: relative;
    height: 100px;
    background: var(--iron);
    border: 4px solid #292524;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: inset 0 10px 20px rgba(0,0,0,0.8);
}

.belt {
    position: absolute;
    top: 0; left: 0; width: 200%; height: 100%;
    background-image: repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0,0,0,0.4) 40px, rgba(0,0,0,0.4) 44px);
    animation: moveBelt 2s linear infinite;
}
.belt.paused { animation-play-state: paused; }

@keyframes moveBelt {
    0% { transform: translateX(0); }
    100% { transform: translateX(-44px); }
}

.block {
    position: absolute;
    top: 15px;
    left: 0;
    width: 180px;
    height: 70px;
    background: #e7e5e4;
    border: 3px solid #78716c;
    border-radius: 4px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #1c1917;
    font-size: 1.4rem;
    font-weight: bold;
    box-shadow: 5px 5px 10px rgba(0,0,0,0.5);
    z-index: 10;
    transition: opacity 0.3s, transform 0.3s;
}
.block.success { background: var(--success); color: white; border-color: #14532d; transform: scale(1.1) translateY(-20px); opacity: 0; }
.block.fail { background: var(--danger); color: white; border-color: #7f1d1d; }

.furnace {
    position: absolute;
    right: 0; top: 0; height: 100%; width: 60px;
    background: radial-gradient(circle at center, #ea580c 0%, #7f1d1d 80%);
    box-shadow: -10px 0 20px rgba(234, 88, 12, 0.6);
    z-index: 20;
}
.furnace::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0; left: -10px; width: 20px;
    background: linear-gradient(to right, transparent, rgba(234, 88, 12, 0.8));
}

.input-area {
    width: 100%;
    max-w: 500px;
}
#typing-input {
    font-size: 2rem;
    padding: 1rem;
    text-transform: uppercase;
    background: #000;
    border: 4px solid var(--brass);
    color: var(--success);
    letter-spacing: 2px;
}
#typing-input.error {
    color: var(--danger);
    animation: shake 0.3s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}