:root {
    --primary-bg: #1a2a6c;
    --accent-color: #fdbb2d;
    --box-border: #ecf0f1;
    --success-green: #2ecc71;
    --text-white: #ffffff;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    background:
        radial-gradient(circle at center,
            #ffcc33 0%,
            #66cc66 30%,
            #5a5bd6 60%,
            #3a2f8f 100%
        );

    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-white);
}

.game-wrapper {
    background: rgba(0, 0, 0, 0.7);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 90%;
    max-width: 600px;
    text-align: center;
    backdrop-filter: blur(5px);
}

/* Header & Stats */
header {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
}

.stat-box {
    background: rgba(255,255,255,0.1);
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px solid var(--box-border);
}

.label {
    display: block;
    font-size: 0.8rem;
    color: var(--accent-color);
}

#timer-display, 
#score-display {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Jumbled Letters */
.jumbled-word {
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: 8px;
    margin: 20px 0;
    color: var(--accent-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    text-transform: uppercase;
}

/* Word Grid Container (UPDATED STRUCTURE) */
#word-grid-container {
    display: flex;
    flex-direction: column; /* vertical stacking */
    align-items: center;
    gap: 8px;
    max-height: 350px;
    overflow-y: auto;
    padding: 15px;
}

/* Each Word Row */
.word-row {
    display: flex;
    gap: 5px;
    justify-content: center;
}

/* Letter Slots */
.letter-slot {
    width: 30px;
    height: 30px;
    border: 2px solid var(--box-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    font-size: 1rem;
}

/* Revealed Letter State */
.letter-slot.revealed {
    background: var(--success-green);
    border-color: var(--success-green);
    animation: pop 0.3s ease-out;
}

/* Input */
input#word-input {
    width: 80%;
    padding: 12px;
    font-size: 1.2rem;
    border-radius: 30px;
    border: none;
    outline: none;
    text-align: center;
    text-transform: uppercase;
}

/* Buttons */
button {
    margin-top: 15px;
    padding: 10px 25px;
    font-size: 1rem;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    background: var(--accent-color);
    font-weight: bold;
    transition: transform 0.2s;
}

button:hover {
    transform: scale(1.05);
}

.hidden { 
    display: none !important; 
}

/* Modal */
.modal {
    position: fixed;
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%;
    background: rgba(0,0,0,0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.modal-content {
    background: white;
    color: black;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
}

/* Animation */
@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}