:root {
    --bg-color: #FFFBF0;
    /* Cream */
    --text-color: #5D5D5D;
    --card-bg: #FFFFFF;

    /* Cozy Palette */
    --correct-color: #B5EAD7;
    /* Pastel Green */
    --present-color: #87CEEB;
    /* Sky Blue */
    --absent-color: #D3C4BE;
    /* Warm Gray */
    --default-border: #E0E0E0;
    --filled-border: #888;

    --key-bg: #EEE;
    --key-text: #555;

    --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --radius: 10px;
}

body {
    margin: 0;
    font-family: 'Nunito', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    /* Vertically center */
    min-height: 100vh;
}

.game-container {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

header {
    /* border-bottom: 1px solid var(--default-border); Removed for Shmurdle rebrand */
    margin-bottom: 15px;
    width: 100%;
    text-align: center;
}

h1 {
    margin: 10px 0 5px 0;
    /* Adjusted margin for subtitle */
    color: #FFDAC1;
    /* Peach */
    font-size: 3rem;
    text-shadow: 2px 2px 0px #FFB7B2;
    /* Pastel Red/Pink Shadow */
    letter-spacing: 1px;
}

.subtitle {
    margin-top: 0;
    margin-bottom: 15px;
    color: #B5EAD7;
    font-weight: bold;
    letter-spacing: 1px;
}

.card {
    position: relative;
    /* For absolute positioning of messages */
    background: var(--card-bg);
    padding: 20px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 500px;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#board-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    margin-bottom: 15px;
    width: 100%;
    /* Ensure full width for centering */
}

#board {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    grid-gap: 5px;
    padding: 10px;
    box-sizing: border-box;
}

.row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-gap: 5px;
}

.tile {
    width: 60px;
    height: 60px;
    border: 2px solid var(--default-border);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: bold;
    text-transform: uppercase;
    border-radius: var(--radius);
    background-color: var(--card-bg);
    transition: transform 0.2s, background-color 0.5s, border-color 0.5s;
    user-select: none;
}

/* Tile States */
.tile[data-state='active'] {
    border-color: var(--filled-border);
    animation: pop 0.1s;
}

.tile[data-state='correct'] {
    background-color: var(--correct-color);
    border-color: var(--correct-color);
    color: white;
}

.tile[data-state='present'] {
    background-color: var(--present-color);
    border-color: var(--present-color);
    color: white;
}

.tile[data-state='absent'] {
    background-color: var(--absent-color);
    border-color: var(--absent-color);
    color: white;
}

/* Animations */
@keyframes pop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

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

@keyframes flip {
    0% {
        transform: rotateX(0);
        background-color: var(--card-bg);
        border-color: var(--filled-border);
    }

    50% {
        transform: rotateX(90deg);
        background-color: var(--card-bg);
        border-color: var(--filled-border);
    }

    100% {
        transform: rotateX(0);
    }
}

.tile.flip {
    animation: flip 0.5s ease forwards;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-5px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(5px);
    }
}

.row.shake {
    animation: shake 0.5s;
}

/* Keyboard */
#keyboard-container {
    width: 100%;
    margin-bottom: 20px;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
    touch-action: manipulation;
}

button {
    font-family: inherit;
    font-weight: bold;
    border: none;
    padding: 0;
    margin: 0 3px;
    height: 58px;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    background-color: var(--key-bg);
    color: var(--key-text);
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-transform: uppercase;
    font-size: 1.2rem;
    transition: background-color 0.3s;
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.1);
}

button.wide-button {
    flex: 1.5;
    font-size: 1rem;
}

.spacer-half {
    flex: 0.5;
}

button:active {
    transform: translateY(2px);
    box-shadow: none;
}

/* Keyboard Key States */
button[data-state='correct'] {
    background-color: var(--correct-color);
    color: white;
}

button[data-state='present'] {
    background-color: var(--present-color);
    color: white;
}

button[data-state='absent'] {
    background-color: var(--absent-color);
    color: white;
}

/* Message Container */
#message-container {
    position: absolute;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 0;
    /* Don't take up space */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    pointer-events: none;
}

.message {
    background-color: #555;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.message.show {
    opacity: 1;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 251, 240, 0.8);
    /* Cream with opacity */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(2px);
}

.modal.hidden {
    display: none;
}

.modal-content h2 {
    color: #B5EAD7;
    /* Pastel Green */
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 0px #FFF;
}

.modal-content p {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 20px;
}

#close-modal {
    background: #B5EAD7;
    color: #555;
    border: none;
    padding: 12px 25px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    display: inline-flex;
    /* Allow centering by parent */
    margin: 0 auto;
    /* Explicit centering */
}

#close-modal:hover {
    transform: scale(1.05);
    background: #A3D8C5;
}

.modal-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 80%;
    animation: popIn 0.3s ease;
}

@keyframes popIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

#restart-btn {
    background: #B5EAD7;
    color: #555;
    padding: 15px 30px;
    font-size: 1.2rem;
    border-radius: 50px;
    margin-top: 20px;
    width: auto;
    flex: none;
}

#restart-btn:hover {
    background: #A3D8C5;
    transform: scale(1.05);
}