:root {
    --table-color: #0a4a1c;
    --border-color: #d4af37;
    --text-color: #ffffff;
    --card-bg: #f8f8f8;
    --shadow-color: rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: radial-gradient(circle, #256a37, var(--table-color));
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.game-container {
    width: 95%;
    max-width: 900px;
    background-color: rgba(0, 0, 0, 0.2);
    border: 3px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-color);
    padding: 20px;
    text-align: center;
}

header {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 5px var(--shadow-color);
}

.bank-info {
    display: flex;
    justify-content: space-around;
    margin-top: 10px;
    font-size: 1.2rem;
    font-weight: 600;
}

.game-board {
    position: relative;
    min-height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hand-area {
    margin: 15px 0;
}

.hand-area h2 {
    margin-bottom: 15px;
    font-weight: 400;
}

.hand {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    min-height: 125px;
}

/* Card Styling */
.card {
    width: 80px;
    height: 115px;
    background-color: var(--card-bg);
    border: 1px solid #ccc;
    border-radius: 8px;
    box-shadow: 3px 3px 8px var(--shadow-color);
    color: #333;
    font-size: 1.8rem;
    font-weight: 600;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    
    transform: translateY(-200%) scale(0.5);
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s;
}

.card.visible {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.card.red { color: #d90429; }
.card.black { color: #1c1c1c; }

.card .suit {
    position: absolute;
    font-size: 1.2rem;
}
.card .top { top: 5px; left: 8px; }
.card .bottom { bottom: 5px; right: 8px; transform: rotate(180deg); }

/* Card Back */
.card.hidden {
    background: linear-gradient(135deg, #4a90e2, #295280);
    color: transparent;
}
.card.hidden::before {
    content: 'BJ';
    position: absolute;
    color: var(--border-color);
    font-size: 2rem;
    font-style: italic;
    opacity: 0.6;
}

/* Controls Styling */
.controls {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

#betting-controls, #action-controls {
    display: flex;
    gap: 15px;
    align-items: center;
}

.controls button {
    padding: 12px 25px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: transparent;
    color: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

.controls button:hover:not(:disabled) {
    background-color: var(--border-color);
    color: var(--table-color);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.7);
}

.controls button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.controls input[type="number"] {
    width: 80px;
    padding: 10px;
    font-size: 1.1rem;
    border-radius: 5px;
    border: 2px solid #ddd;
    text-align: center;
    background-color: #f0f0f0;
}

/* Message Overlay Styling */
#message-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    
    opacity: 0;
    transform: scale(1.2);
    transition: all 0.4s ease-in-out;
}

#message-overlay:not(.hidden) {
    opacity: 1;
    transform: scale(1);
}

#message-text {
    font-size: 3rem;
    font-weight: 700;
    text-shadow: 3px 3px 8px #000;
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 600px) {
    .game-container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .card {
        width: 60px;
        height: 90px;
        font-size: 1.4rem;
    }
    
    #message-text {
        font-size: 2rem;
    }
}