/* =========================================
   VARIABLES Y ESTILOS BASE
   ========================================= */
:root {
    --primary-blue: #3b82f6;
    --primary-green: #4ade80;
    --primary-green-dark: #22c55e;
    --bg-color: #f3f4f6;
    --text-dark: #1f2937;
    --card-bg: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
    justify-content: center; /* Centra el contenido en la pantalla */
    align-items: center;
}

/* =========================================
   LAYOUT PRINCIPAL (Dos Columnas)
   ========================================= */
.main-layout {
    display: flex;
    flex-direction: column; /* En celular se apilan */
    width: 100%;
    max-width: 1100px;
    padding: 20px;
    box-sizing: border-box;
    gap: 40px;
    align-items: center;
}

/* En pantallas de PC, se ponen lado a lado */
@media (min-width: 850px) {
    .main-layout {
        flex-direction: row;
        align-items: flex-start;
        justify-content: center;
    }
}

.left-column {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.right-column {
    flex: 0.8;
    display: flex;
    justify-content: center;
    width: 100%;
}

/* =========================================
   TARJETA DE MENÚ (Derecha)
   ========================================= */
.menu-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    text-align: center;
    width: 100%;
    max-width: 350px;
}

.menu-card h1 {
    margin-top: 0;
    font-size: 3em;
    color: #1e293b;
    margin-bottom: 30px;
}

#connection-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-field {
    padding: 12px;
    font-size: 16px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}

.input-field:focus {
    border-color: var(--primary-blue);
}

.divider {
    color: #94a3b8;
    font-size: 0.9em;
    margin: 5px 0;
}

.bot-controls {
    display: flex;
    flex-direction: column;
}

.rules-container {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #f1f5f9;
    text-align: left;
}

.simple-rules {
    margin: 0 0 16px 0;
    padding-left: 20px;
    color: #475569;
    font-size: 0.9em;
    line-height: 1.5;
}

.simple-rules li {
    margin-bottom: 6px;
}

.author-credit {
    margin: 0;
    text-align: center;
    font-size: 0.82em;
    color: #94a3b8;
}

.rules-link {
    color: #64748b;
    text-decoration: underline;
    font-weight: 600;
    transition: color 0.2s;
}

.rules-link:hover {
    color: var(--primary-blue);
}

/* =========================================
   BOTONES
   ========================================= */
.btn {
    padding: 12px 20px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    border-radius: 6px;
    transition: transform 0.1s, box-shadow 0.2s, opacity 0.2s;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn:active { transform: translateY(1px); }

.btn-green { background-color: var(--primary-green-dark); color: white; }
.btn-blue { background-color: var(--primary-blue); color: white; }

.btn-outline {
    background-color: transparent;
    color: #475569;
    border: 1px solid #cbd5e1;
}

.btn-small {
    padding: 6px 12px;
    font-size: 14px;
}

/* =========================================
   ÁREA DE JUEGO Y TABLERO (Izquierda)
   ========================================= */
.room-info {
    background: #e0f2fe;
    padding: 10px 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #bae6fd;
    display: flex;
    align-items: center;
    gap: 15px;
}

#room-code-text {
    color: #0369a1;
    font-size: 1.2em;
}

#game-info {
    text-align: center;
    font-size: 1.3em;
    min-height: 40px;
    margin-bottom: 10px;
    font-weight: bold;
}

#game-container {
    width: 100%;              
    max-width: 550px;
    aspect-ratio: 1 / 1;     
    position: relative;      
}

#game-board {
    width: 100%;
    height: 100%;
    display: block;
    touch-action: none; 
}

/* Elementos del SVG (Idénticos a tu original) */
.ring { fill: #fff; stroke: #555; stroke-width: 3; transition: fill 0.2s, stroke 0.2s; cursor: pointer; }
.ring:hover { stroke: var(--primary-blue); }
.ring.peripheral:hover { stroke: #e83e8c; }
.ring.selected { stroke: var(--primary-green-dark); stroke-width: 5; }
.ring.valid-move { fill: #dcfce7; }
.pawn { stroke-width: 2; stroke: #333; pointer-events: none; }
.pawn.player1 { fill: #ef4444; }
.pawn.player2 { fill: #3b82f6; }