/* Base Arena — styles */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #1a202c 100%);
    color: #e2e8f0;
    line-height: 1.5;
    min-height: 100vh;
}

.app {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem;
    min-height: 100vh;
}

/* Screens */
.screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    text-align: center;
}

.screen-main {
    display: block;
    min-height: auto;
    text-align: left;
}

/* Home */
.screen-home .home-logo {
    width: clamp(120px, 24vw, 180px);
    height: auto;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 16px rgba(237, 137, 54, 0.2));
}

.screen-home .home-title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 800;
    background: linear-gradient(135deg, #f56565 0%, #ed8936 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.screen-home .home-tagline {
    font-size: 1rem;
    color: #a0aec0;
    margin-bottom: 2rem;
}

/* Onboarding */
.screen-onboarding {
    min-height: 80vh;
    padding: 2rem 1rem;
}

.onboard-header {
    margin-bottom: 2rem;
}

.onboard-header .onboard-logo {
    width: clamp(120px, 22vw, 180px);
    height: auto;
    margin-bottom: 0.75rem;
    display: block;
    filter: drop-shadow(0 4px 16px rgba(237, 137, 54, 0.25));
}

.onboard-header h1 {
    font-size: clamp(1.35rem, 4vw, 1.75rem);
    background: linear-gradient(135deg, #f56565, #ed8936);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.onboard-step-label {
    font-size: 0.8rem;
    color: #718096;
    margin-top: 0.25rem;
}

.onboard-step h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.onboard-desc {
    color: #a0aec0;
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.input-name {
    display: block;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 1rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid #4a5568;
    border-radius: 10px;
    background: rgba(26, 32, 44, 0.6);
    color: #e2e8f0;
}

.input-name::placeholder { color: #718096; }

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 480px;
    margin: 0 auto 1rem;
}

.avatar-card {
    cursor: pointer;
    border-radius: 14px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: border-color 0.2s, transform 0.2s;
}

.avatar-card:hover {
    transform: scale(1.05);
}

.avatar-card.selected {
    border-color: #48bb78;
    box-shadow: 0 0 0 2px rgba(72, 187, 120, 0.3);
}

.avatar-card img {
    display: block;
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.avatar-card span {
    display: block;
    font-size: 0.8rem;
    color: #a0aec0;
    padding: 0.35rem;
}

.avatar-hint {
    font-size: 0.85rem;
    color: #718096;
    margin-bottom: 1rem;
}

.wallet-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    max-width: 420px;
    margin: 0 auto 1rem;
}

.wallet-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid #4a5568;
    border-radius: 12px;
    background: rgba(45, 55, 72, 0.5);
    color: #e2e8f0;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.wallet-btn:hover {
    border-color: #ed8936;
    background: rgba(237, 137, 54, 0.12);
    transform: translateY(-1px);
}

.wallet-btn i {
    font-size: 1.1rem;
    color: #a0aec0;
}

.onboard-wallet {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(45, 55, 72, 0.5);
    border-radius: 10px;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: #a0aec0;
}

.onboard-wallet .btn-ghost {
    margin-left: auto;
}

.training-result {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(72, 187, 120, 0.15);
    border-radius: 10px;
    border: 1px solid rgba(72, 187, 120, 0.3);
}

.training-won {
    color: #68d391;
    font-weight: 500;
}

.step3-heal {
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(237, 137, 54, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(237, 137, 54, 0.3);
}

.step3-heal .btn { margin-top: 0.5rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-cta {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    color: #fff;
}

.btn-cta:hover:not(:disabled) {
    box-shadow: 0 8px 20px rgba(237, 137, 54, 0.35);
}

.btn-enter {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: #fff;
}

.btn-enter:hover:not(:disabled) {
    box-shadow: 0 8px 20px rgba(72, 187, 120, 0.35);
}

.btn-primary {
    background: linear-gradient(135deg, #4299e1, #3182ce);
    color: #fff;
}

.btn-success {
    background: linear-gradient(135deg, #48bb78, #38a169);
    color: #fff;
}

.btn-secondary {
    background: linear-gradient(135deg, #718096, #4a5568);
    color: #fff;
}

.btn-fight {
    background: linear-gradient(135deg, #f56565, #e53e3e);
    color: #fff;
    width: 100%;
}

.btn-ghost {
    background: transparent;
    color: #a0aec0;
    border: 1px solid #4a5568;
}

.btn-ghost:hover {
    color: #e2e8f0;
    border-color: #718096;
}

/* Main game */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 0.75rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #2d3748;
}

.main-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-brand .main-logo {
    width: clamp(40px, 6vw, 52px);
    height: auto;
}

.main-brand span {
    font-size: 1.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #f56565, #ed8936);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-wallet {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: #a0aec0;
}

.main-wallet-connect {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-tabs {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
}

.main-tabs .tab {
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    background: rgba(45, 55, 72, 0.5);
    border: 1px solid #4a5568;
    border-radius: 8px;
    color: #a0aec0;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.main-tabs .tab:hover {
    background: rgba(45, 55, 72, 0.8);
    color: #e2e8f0;
}

.main-tabs .tab.active {
    background: rgba(66, 153, 225, 0.2);
    border-color: #4299e1;
    color: #63b3ed;
}

.tab-panels {
    padding-bottom: 2rem;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* Character panel */
.panel-character {
    background: rgba(45, 55, 72, 0.5);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid #4a5568;
}

.char-profile {
    margin-bottom: 1.25rem;
}

.char-avatar {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    object-fit: cover;
    margin-bottom: 0.5rem;
}

.char-name {
    font-size: 1.25rem;
    font-weight: 600;
}

.char-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.char-stats .stat {
    padding: 0.5rem 0.75rem;
    background: rgba(26, 32, 44, 0.6);
    border-radius: 8px;
    font-size: 0.9rem;
}

.char-stats .stat .label {
    display: block;
    color: #718096;
    font-size: 0.75rem;
}

.char-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Fight panel */
.panel-fight h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.leagues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.league-card {
    background: rgba(45, 55, 72, 0.5);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    border: 2px solid transparent;
}

.league-card.bronze { border-color: #cd7f32; color: #cd7f32; }
.league-card.silver { border-color: #c0c0c0; color: #c0c0c0; }
.league-card.gold { border-color: #ffd700; color: #ffd700; }
.league-card.diamond { border-color: #b9f2ff; color: #b9f2ff; }
.league-card.divine { border-color: #9f7aea; color: #9f7aea; }

.league-card h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.league-card p {
    font-size: 0.9rem;
    color: #e2e8f0;
    margin-bottom: 0.75rem;
}

.battles-list {
    background: rgba(45, 55, 72, 0.4);
    border-radius: 12px;
    padding: 1rem;
    min-height: 120px;
}

.battle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px solid #2d3748;
    gap: 1rem;
}

.battle-item:last-child { border-bottom: none; }

.battle-item .status { color: #718096; font-size: 0.9rem; }

/* Leaderboard */
.panel-leaderboard h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: #e2e8f0;
}

.leaderboard {
    background: rgba(45, 55, 72, 0.5);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid #4a5568;
}

.leaderboard-item {
    display: grid;
    grid-template-columns: 50px 1fr 80px;
    gap: 1rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid #2d3748;
    align-items: center;
    font-size: 0.9rem;
}

.leaderboard-item:last-child { border-bottom: none; }

.leaderboard-item.header {
    font-weight: 600;
    color: #63b3ed;
    border-bottom: 2px solid #4299e1;
}

.leaderboard-item.current-user {
    background: rgba(66, 153, 225, 0.1);
}

.no-data {
    text-align: center;
    color: #718096;
    padding: 1.5rem;
    font-style: italic;
}

/* Battle modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0,0,0,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    border-radius: 16px;
    padding: 1.5rem;
    width: 100%;
    max-width: 480px;
    border: 1px solid #4a5568;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: #a0aec0;
    cursor: pointer;
}

.modal-close:hover { color: #fff; }

.modal-content h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.battle-interface {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1rem 0;
}

.move-section h3 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: #e2e8f0;
}

.zone-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.zone-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    background: rgba(26, 32, 44, 0.6);
    border: 2px solid #4a5568;
    border-radius: 8px;
    color: #e2e8f0;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.zone-btn:hover {
    border-color: #4299e1;
    background: rgba(66, 153, 225, 0.1);
}

.zone-btn.selected {
    border-color: #4299e1;
    background: rgba(66, 153, 225, 0.2);
}

.modal-content > p {
    margin: 0.75rem 0;
    font-size: 0.9rem;
    color: #a0aec0;
}

.modal-content #commitMove {
    margin-top: 0.5rem;
}

.chest-received-modal .modal-content.chest-received-content {
    text-align: center;
    max-width: 360px;
}
.chest-received-title {
    color: #f6e05e;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}
.chest-received-text {
    color: #e2e8f0;
    margin: 0.5rem 0;
    font-size: 1rem;
}
.chest-received-hint {
    color: #a0aec0;
    font-size: 0.9rem;
    margin: 0.75rem 0 1rem;
}
.chest-received-modal #chestReceivedModalBtn {
    margin-top: 0.5rem;
}

@media (max-width: 640px) {
    .battle-interface { grid-template-columns: 1fr; }
    .main-header { flex-direction: column; align-items: flex-start; }
    .main-tabs { flex-wrap: wrap; }
    .leaderboard-item { grid-template-columns: 40px 1fr 60px; font-size: 0.85rem; }
    .wallet-buttons { grid-template-columns: 1fr; max-width: 280px; }
    .avatar-grid { gap: 0.75rem; max-width: 320px; }
}