* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    min-height: 100vh;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    background: linear-gradient(90deg, #e23636, #518cca);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.2rem;
    color: #ccc;
}

.game-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.4);
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.score {
    font-size: 1.5rem;
    font-weight: bold;
}

.controls {
    display: flex;
    gap: 15px;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background: linear-gradient(135deg, #e23636, #c41e3a);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

button:active {
    transform: translateY(1px);
}

#reset-btn {
    background: linear-gradient(135deg, #518cca, #0057b7);
}

/* Container dos decks */
.decks-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 20px;
}

.deck {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 15px;
    padding: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.marvel-deck {
    border-left: 5px solid #e23636;
}

.dc-deck {
    border-left: 5px solid #518cca;
}

.deck-title {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    font-size: 1.8rem;
}

.marvel-title {
    color: #e23636;
    text-shadow: 0 0 10px rgba(226, 54, 54, 0.3);
}

.dc-title {
    color: #518cca;
    text-shadow: 0 0 10px rgba(81, 140, 202, 0.3);
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.card {
    background: linear-gradient(145deg, #2d3047, #1b1b2f);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    border: 2px solid transparent;
    min-height: 450px;
    min-width: 250px;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.6);
}

.card.selected {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(226, 54, 54, 0.8);
    border-color: #e23636;
}

.card.marvel.selected {
    box-shadow: 0 0 25px rgba(226, 54, 54, 0.8);
    border-color: #e23636;
}

.card.dc.selected {
    box-shadow: 0 0 25px rgba(81, 140, 202, 0.8);
    border-color: #518cca;
}

.card-header {
    padding: 15px;
    text-align: center;
    font-weight: bold;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.marvel .card-header {
    background: linear-gradient(90deg, #e23636, #c41e3a);
}

.dc .card-header {
    background: linear-gradient(90deg, #518cca, #0057b7);
}

.card-image {
    height: 250px;
    background-size: cover;
    background-position: center;
    background-color: #333;
    position: relative;
}

.card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
}

.card-stats {
    padding: 12px;
}

.stat {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

.stat-name {
    font-weight: bold;
    color: #aaa;
}

.stat-value {
    font-weight: bold;
}

/* Área de batalha */
.battle-area {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 20px;
    background: rgba(0, 0, 0, 0.3);
    padding: 25px;
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.battle-card {
    flex: 1;
    text-align: center;
}

.battle-card h2 {
    margin-bottom: 15px;
    font-size: 1.5rem;
    color: #fff;
}

.battle-card .card {
    margin: 0 auto;
    max-width: 280px;
    min-height: 400px;
}

.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 2px dashed rgba(255, 255, 255, 0.2);
}

.placeholder-text {
    color: #888;
    font-style: italic;
    text-align: center;
    padding: 20px;
}

.vs {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: bold;
    color: #e23636;
    text-shadow: 0 0 15px rgba(226, 54, 54, 0.7);
    min-width: 100px;
}

.battle-result {
    text-align: center;
    margin-top: 20px;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 20px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.winner {
    color: #4CAF50;
    display: block;
    animation: pulse 1.5s infinite;
}

.victory {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.2), rgba(56, 142, 60, 0.2));
    border-color: #4CAF50;
}

.defeat {
    background: linear-gradient(135deg, rgba(244, 67, 54, 0.2), rgba(211, 47, 47, 0.2));
    border-color: #f44336;
}

.draw {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.2), rgba(245, 166, 35, 0.2));
    border-color: #ffc107;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: #aaa;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsividade */
@media (max-width: 1024px) {
    .decks-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cards-container {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }
}

@media (max-width: 768px) {
    .battle-area {
        flex-direction: column;
        gap: 20px;
    }
    
    .vs {
        order: -1;
        margin-bottom: 10px;
    }
    
    .cards-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .game-info {
        flex-direction: column;
        gap: 15px;
    }
    
    .deck-title {
        font-size: 1.5rem;
    }
}


.game-stats {
    display: flex;
    gap: 20px;
    align-items: center;
}

.turn-counter {
    font-size: 1.2rem;
    font-weight: bold;
    color: #ffd700;
}


.game-stats .player-turn {
    font-size: 1rem;
    font-weight: bold;
    color: #4CAF50;
    padding: 8px 15px;
    background: rgba(76, 175, 80, 0.15);
    border-radius: 10px;
    border: 1px solid #4CAF50;
    min-width: 200px;
    text-align: center;
    line-height: 1.4;
}

.game-stats .player-turn.opponent-turn {
    color: #f44336;
    background: rgba(244, 67, 54, 0.15);
    border-color: #f44336;
}

.opponent-turn {
    color: #f44336;
    background: rgba(244, 67, 54, 0.2);
    border-color: #f44336;
}

/* Arena Container */
.arena-container {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.arena-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
    color: #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.arenas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.arena {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 15px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.arena:hover {
    border-color: rgba(255, 215, 0, 0.5);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.arena h3 {
    text-align: center;
    margin-bottom: 15px;
    color: #ffd700;
}

.arena-cards {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.player-side, .opponent-side {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    min-height: 120px;
}

.player-side {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.opponent-side {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.power-value {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 10px;
    color: #ffd700;
}

.arena-cards-container {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-height: 80px;
}

.arena-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    padding: 5px;
    font-size: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Hand Container */
.hand-container {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.hand-container h2 {
    text-align: center;
    margin-bottom: 15px;
    color: #4CAF50;
}

.hand-cards {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hand-card {
    transform: scale(1);
    transition: all 0.3s ease;
}

.hand-card:hover {
    transform: scale(1.5);
}

.hand-card.playable {
    cursor: pointer;
    border: 2px solid #4CAF50;
}

.hand-card.playable:hover {
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.5);
}

/* Estados do jogo */
.card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.arena.winning {
    border-color: #4CAF50;
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.3);
}

.arena.losing {
    border-color: #f44336;
    box-shadow: 0 0 20px rgba(244, 67, 54, 0.3);
}

/* Modal de resultado */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    max-width: 500px;
    border: 3px solid #ffd700;
}

.modal h2 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 2rem;
}

/* Botões atualizados */
#end-turn-btn {
    background: linear-gradient(135deg, #ff9800, #f57c00);
}

#battle-btn {
    background: linear-gradient(135deg, #4CAF50, #388e3c);
}

#battle-btn:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
}

#battle-btn:disabled:hover {
    transform: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Responsividade */
@media (max-width: 768px) {
    .arenas {
        grid-template-columns: 1fr;
    }
    
    .game-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .hand-cards {
        gap: 10px;
    }
    
    .hand-card {
        transform: scale(0.8);
    }
}

/* Estilos para as Arenas Temáticas */
.arena {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 200px;
    overflow: hidden;
}

.arena::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1;
}

.arena > * {
    position: relative;
    z-index: 2;
}

.arena h3 {
    color: #ffd700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.arena-effect {
    font-size: 0.8rem;
    color: #4CAF50;
    text-align: center;
    margin-bottom: 10px;
    font-style: italic;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.arena-description {
    font-size: 0.7rem;
    color: #ccc;
    text-align: center;
    margin-top: 5px;
    opacity: 0.8;
}

/* Efeitos especiais para diferentes tipos de arena */
.arena[data-universe="marvel"] {
    border-left: 4px solid #e23636;
}

.arena[data-universe="dc"] {
    border-left: 4px solid #518cca;
}

.arena[data-universe="neutral"] {
    border-left: 4px solid #ffd700;
}

.arena.active-effect {
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.5);
    border-color: #ffd700;
}

/* Indicador de poder com arena */
.power-value.with-bonus {
    color: #4CAF50;
    animation: pulse 1s infinite;
}

.power-value.with-penalty {
    color: #f44336;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Versão alternativa - Cartas mais destacadas */
.arena-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05));
    border-radius: 10px;
    padding: 10px 6px;
    font-size: 0.85rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 6px;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.9);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    word-wrap: break-word;
    line-height: 1.3;
    position: relative;
    overflow: hidden;
}

.arena-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}

.arena-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.6);
}

/* Estilos para o sistema de progressão */
.difficulty-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
    margin-left: 10px;
}

.difficulty-1 { background: #4CAF50; color: white; }
.difficulty-2 { background: #8BC34A; color: white; }
.difficulty-3 { background: #FFC107; color: black; }
.difficulty-4 { background: #FF9800; color: white; }
.difficulty-5 { background: #F44336; color: white; }

.stats-container {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.stat-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.win-streak {
    color: #4CAF50;
    font-weight: bold;
}

.loss-streak {
    color: #F44336;
    font-weight: bold;
}

.difficulty-select {
    display: flex;
    align-items: center;
    gap: 8px;
}

.difficulty-select label {
    color: #ccc;
    font-size: 0.9rem;
}

.difficulty-select select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    color: white;
    padding: 5px 10px;
    font-size: 0.9rem;
}

.difficulty-select select option {
    background: #2d3047;
    color: white;
}