/* --- Base Styles and Global Scaling --- */
:root {
    /* Set a base font size that scales with the viewport width, but won't get too small or too large. */
    /* format: clamp(MINIMUM_SIZE, PREFERRED_SIZE, MAXIMUM_SIZE) */
    font-size: clamp(10px, 1.2vw, 18px);
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #0d1b2a;
    color: #e0e1dd;
    margin: 0;
    padding: 1rem; /* Use rem for scalable padding */
}

/* --- Layout Containers --- */
.main-container {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem; /* Use rem for scalable gaps */
    width: 100%;
}

.left-panel, .right-panel {
    /* Panels now take a percentage of the width, making them responsive. */
    width: 15%;
    min-width: 150px; /* Prevent panels from becoming too narrow */
    padding: 1.5rem;
    background-color: #1b263b;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.game-area {
    flex-grow: 1;
    text-align: center;
}

/* --- Typography --- */
.title {
    /* Font size now uses responsive 'rem' units */
    font-size: 3.5rem;
    color: #fca311;
    margin-bottom: 1rem;
}

#game-message {
    font-size: 1.8rem;
    min-height: 50px;
    color: #e0e1dd;
}

/* --- Sound Controls --- */
.sound-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.sound-btn {
    background: #1b263b;
    border: 2px solid #fca311;
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sound-btn:hover {
    background: #fca311;
    transform: scale(1.1);
}

.sound-btn.muted {
    opacity: 0.5;
    background: #415a77;
    border-color: #778da9;
}

/* --- The Card Grid --- */
#card-grid {
    display: grid;
    /* The minimum card width now scales with the viewport, ensuring the grid reflows intelligently. */
    grid-template-columns: repeat(auto-fit, minmax(clamp(80px, 10vmin, 140px), 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1rem;
}

.card {
    /* Removed fixed height. aspect-ratio maintains the card shape as it scales. */
    aspect-ratio: 4 / 3;
    perspective: 1000px;
    cursor: pointer;
    background-color: transparent;
    border: none;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.card.flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem; /* Scalable font size */
    font-weight: bold;
}

.card-front {
    background: linear-gradient(145deg, #fca311, #e85d04);
    color: #0d1b2a;
}

.card-back {
    background: linear-gradient(145deg, #415a77, #1b263b);
    color: #e0e1dd;
    transform: rotateY(180deg);
}

.card.eliminated {
    opacity: 0.4;
    cursor: default;
}

/* --- Player and Dealer Sections --- */
#player-card-area {
    margin-top: 2rem;
    min-height: 120px;
}

#player-card {
    /* Player's card now also scales. */
    width: 70%;
    max-width: 150px;
    margin: 0 auto;
    cursor: default;
}

#dealer-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: #1b263b;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

#dealer-section h2 {
    margin: 0 0 1rem 0;
    font-size: 2rem;
}

#offer-amount {
    color: #fca311;
}

button {
    padding: 0.8rem 1.5rem; /* Scalable padding */
    font-size: 1.2rem; /* Scalable font size */
    font-weight: bold;
    margin: 0 0.5rem;
    border-radius: 5px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

#deal-button {
    background-color: #2a9d8f;
    color: white;
}

#deal-button:hover {
    background-color: #264653;
    transform: scale(1.05);
}

#decline-button {
    background-color: #e76f51;
    color: white;
}

#decline-button:hover {
    background-color: #f4a261;
    transform: scale(1.05);
}

.hidden {
    display: none !important;
}

/* --- Money Board --- */
#money-board {
    display: flex;
    flex-direction: column;
    gap: 0.5rem; /* Scalable gap */
}

.money-value {
    padding: 0.5rem; /* Scalable padding */
    background-color: #415a77;
    border-radius: 5px;
    text-align: center;
    font-weight: bold;
    font-size: 1rem; /* Scalable font size */
    transition: all 0.5s;
}

.money-value.eliminated {
    text-decoration: line-through;
    opacity: 0.3;
    background-color: #e76f51;
}

@media (max-width: 800px) {
    /* Change the main container to stack vertically */
    .main-container {
        flex-direction: column;
        gap: 2rem; /* Adds space between the stacked sections */
    }

    /* Allow the side panels to take up the full width */
    .left-panel, .right-panel {
        width: 100%;
        min-width: unset; /* Remove the minimum width */
        /* Optional: Center text for a cleaner mobile look */
        text-align: center;
    }

    /* Make the money board display its values in a row that wraps */
    #money-board {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .money-value {
        padding: 0.5rem;
        flex-grow: 1; /* Allows values to grow and fill space */
        min-width: 80px; /* Gives each a minimum width before wrapping */
    }

    /* Slightly reduce the title size on mobile */
    .title {
        font-size: 2.5rem;
    }

    #game-message {
        font-size: 1.5rem;
    }
}