/* ===== Duel Module Styles ===== */
/* Matches existing Kalamatic design system */

/* ===== Telegram-Themed Scrollbars ===== */
/* Hide scrollbar for Chrome, Safari and Opera */
.duel-page::-webkit-scrollbar,
.duel-active-list::-webkit-scrollbar,
.duel-list::-webkit-scrollbar,
.duel-result::-webkit-scrollbar,
.duel-game-content::-webkit-scrollbar {
    width: 4px;
}

.duel-page::-webkit-scrollbar-track,
.duel-active-list::-webkit-scrollbar-track,
.duel-list::-webkit-scrollbar-track,
.duel-result::-webkit-scrollbar-track,
.duel-game-content::-webkit-scrollbar-track {
    background: transparent;
}

.duel-page::-webkit-scrollbar-thumb,
.duel-active-list::-webkit-scrollbar-thumb,
.duel-list::-webkit-scrollbar-thumb,
.duel-result::-webkit-scrollbar-thumb,
.duel-game-content::-webkit-scrollbar-thumb {
    background: var(--tg-hint-color, rgba(128, 128, 128, 0.3));
    border-radius: 4px;
}

.duel-page::-webkit-scrollbar-thumb:hover,
.duel-active-list::-webkit-scrollbar-thumb:hover,
.duel-list::-webkit-scrollbar-thumb:hover,
.duel-result::-webkit-scrollbar-thumb:hover,
.duel-game-content::-webkit-scrollbar-thumb:hover {
    background: var(--tg-hint-color, rgba(128, 128, 128, 0.5));
}

/* Firefox scrollbar styling */
.duel-page,
.duel-active-list,
.duel-list,
.duel-result,
.duel-game-content {
    scrollbar-width: thin;
    scrollbar-color: var(--tg-hint-color, rgba(128, 128, 128, 0.3)) transparent;
}

/* ===== Home Page Duel Button ===== */
.duel-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 280px;
    padding: 14px 28px;
    margin-top: 12px;
    border: none;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--color-present), var(--color-present-dark));
    color: white;
    font-family: 'Vazirmatn', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 149, 0, 0.35);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.duel-button:active {
    transform: scale(0.96);
    box-shadow: 0 2px 10px rgba(255, 149, 0, 0.25);
}

.duel-button svg {
    flex-shrink: 0;
}

/* Duel button in waiting section */
.duel-btn-waiting {
    background: linear-gradient(135deg, var(--color-present), var(--color-present-dark)) !important;
}

/* ===== Duel Page Container ===== */
.duel-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--tg-bg);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

.duel-page.hidden {
    display: none !important;
}

/* ===== Duel Lobby (Main Menu) ===== */
.duel-lobby {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 16px;
    gap: 16px;
}

/* Duel Header */
.duel-header {
    text-align: center;
    padding: 16px 0;
}

.duel-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--tg-text);
    margin-bottom: 4px;
}

.duel-subtitle {
    font-size: 0.9rem;
    color: var(--tg-hint);
}

/* Stats Preview (small version in lobby) */
.duel-stats-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 12px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
}

.duel-stats-preview .stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.duel-stats-preview .stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
}

.duel-stats-preview .stat-label {
    font-size: 0.75rem;
    color: var(--tg-hint);
}

/* Stats Cards Row */
.duel-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.duel-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 12px 8px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
}

.duel-stat-value {
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    font-weight: 700;
    color: var(--tg-text);
}

.duel-stat-value.positive {
    color: var(--color-correct);
}

.duel-stat-value.negative {
    color: var(--tg-destructive);
}

.duel-stat-label {
    font-size: clamp(0.65rem, 2vw, 0.75rem);
    color: var(--tg-hint);
    margin-top: 4px;
}

/* Main Action Buttons */
.duel-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.btn-random-match {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 48px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--tg-button);
    color: var(--tg-button-text);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-random-match:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.btn-random-match .btn-icon {
    font-size: 1.1rem;
}

.btn-random-match .btn-cost {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
}

.duel-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.duel-btn:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.duel-btn-primary {
    background: linear-gradient(135deg, var(--color-correct), var(--color-correct-dark));
    color: white;
}

.duel-btn-secondary {
    background: var(--tg-bg-secondary);
    color: var(--tg-text);
}

/* Permanent Link Invite Section */
.duel-invite-section {
    margin-top: 16px;
    padding: 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
}

.invite-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--tg-hint);
}

.invite-link-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.invite-link-field {
    flex: 1;
    display: flex;
    align-items: center;
    position: relative;
}

.invite-link-input {
    width: 100%;
    height: 44px;
    padding: 0 12px 0 44px;
    border: 1px solid var(--tg-separator);
    border-radius: var(--radius-md);
    background: var(--tg-bg);
    color: var(--tg-text);
    font-family: 'Vazirmatn', monospace;
    font-size: 0.75rem;
    text-align: left;
    direction: ltr;
    box-sizing: border-box;
}

.invite-link-input:focus {
    outline: none;
    border-color: var(--tg-button);
}

.btn-icon-inside {
    position: absolute;
    inset-inline-start: 4px;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 8px;
    background: var(--tg-bg-secondary);
    color: var(--tg-hint);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-icon-inside:hover {
    background: var(--tg-bg);
}

.btn-icon-inside:active {
    background: var(--tg-separator);
    color: var(--tg-button);
}

.btn-share-telegram {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--tg-button);
    color: var(--tg-button-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.btn-share-telegram:active {
    transform: scale(0.95);
}

.duel-btn-icon {
    width: 20px;
    height: 20px;
}

/* Dark theme icon filter */
.dark-theme .duel-btn-secondary .duel-btn-icon,
body[data-theme="dark"] .duel-btn-secondary .duel-btn-icon {
    filter: invert(1) brightness(0.9);
}

.duel-btn .duel-btn-icon {
    filter: brightness(0) invert(1);
}

.duel-btn-secondary .duel-btn-icon {
    filter: none;
}

/* Entry Fee Badge */
.duel-fee-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.duel-btn-secondary .duel-fee-badge {
    background: var(--tg-separator);
}

/* Active Duels Section */
.duel-active-section {
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.duel-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 0.5px solid var(--tg-separator);
}

.duel-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-hint);
}

.duel-active-list {
    max-height: 200px;
    overflow-y: auto;
}

.duel-active-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 0.5px solid var(--tg-separator);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.duel-active-item:active {
    background: var(--tg-bg);
}

.duel-active-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.duel-active-opponent {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--tg-text);
}

.duel-active-status {
    font-size: 0.8rem;
    color: var(--tg-hint);
}

.duel-active-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.duel-active-badge.your-turn {
    background: var(--color-correct);
    color: white;
}

.duel-active-badge.waiting {
    background: var(--tg-bg);
    color: var(--tg-hint);
}

/* Empty State */
.duel-empty-state {
    text-align: center;
    padding: 32px 16px;
    color: var(--tg-hint);
    font-size: 0.9rem;
}

/* ===== Waiting Screen ===== */
.duel-waiting {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 24px;
    text-align: center;
}

.duel-waiting-icon {
    font-size: 4rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.duel-waiting-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
    margin-bottom: 8px;
}

.duel-waiting-text {
    font-size: 0.9rem;
    color: var(--tg-hint);
    line-height: 1.5;
}

.duel-share-link {
    width: 100%;
    max-width: 320px;
    padding: 14px 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--tg-text);
    word-break: break-all;
    direction: ltr;
    text-align: center;
}

.duel-share-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 280px;
}

.duel-share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    background: var(--tg-button);
    color: var(--tg-button-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.duel-share-btn:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.duel-cancel-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--tg-destructive);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
}

/* ===== Matchmaking Screen ===== */
.duel-matchmaking {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 24px;
    text-align: center;
}

.duel-matchmaking-spinner {
    width: 64px;
    height: 64px;
    border: 4px solid var(--tg-separator);
    border-top-color: var(--tg-button);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.duel-matchmaking-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
}

.duel-matchmaking-text {
    font-size: 0.9rem;
    color: var(--tg-hint);
}

/* ===== Game Screen ===== */
.duel-game {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.duel-game-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--tg-bg);
    border-bottom: 0.5px solid var(--tg-separator);
}

.duel-game-header .opponent-info,
.duel-game-header .prize-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
}

.duel-game-header .opponent-label,
.duel-game-header .prize-label {
    color: var(--tg-hint);
}

.duel-game-header .opponent-status,
.duel-game-header .prize-amount {
    color: var(--tg-text);
    font-weight: 600;
}

.duel-player-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.duel-player-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-player-status {
    font-size: 0.75rem;
    color: var(--tg-hint);
}

.duel-vs {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--tg-hint);
    padding: 4px 12px;
    background: var(--tg-bg-secondary);
    border-radius: 12px;
}

/* Game Board (reuses existing .board styles but scoped) */
.duel-board-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    gap: 16px;
    overflow: hidden;
    min-height: 0;
}

.duel-board {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: var(--tile-gap);
    width: fit-content;
    max-width: 100%;
}

.duel-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--tile-gap);
    perspective: 1000px;
}

.duel-tile {
    width: var(--tile-size);
    height: var(--tile-size);
    border: 2px solid var(--tg-hint);
    border-radius: var(--tile-radius);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: calc(var(--tile-font-size) * 1.4);
    font-weight: 900;
    background: var(--tg-bg);
    color: var(--tg-text);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.duel-tile.filled {
    border-color: var(--border-filled);
    animation: tilePop 0.1s ease;
}

.duel-tile.correct {
    background: var(--color-correct);
    border-color: transparent;
    color: white;
}

.duel-tile.present {
    background: var(--color-present);
    border-color: transparent;
    color: white;
}

.duel-tile.absent {
    background: var(--color-absent);
    border-color: transparent;
    color: white;
}

/* Duel Keyboard (reuses styles, scoped to duel) */
.duel-keyboard-container {
    padding: 6px 4px;
    padding-bottom: calc(18px + var(--safe-area-bottom));
    background: var(--tg-bg-secondary);
    flex-shrink: 0;
}

.duel-keyboard {
    display: flex;
    flex-direction: column;
    gap: 5px;
    max-width: var(--max-keyboard-width);
    margin: 0 auto;
    width: 100%;
}

.duel-keyboard-row {
    display: flex;
    flex-direction: row-reverse;
    justify-content: center;
    gap: 3px;
    padding: 0 2px;
}

.duel-key {
    font-family: 'Vazirmatn', sans-serif;
    font-size: var(--key-font-size);
    font-weight: 600;
    height: var(--key-height);
    min-width: 0;
    padding: 0 4px;
    border: none;
    border-radius: var(--key-radius);
    background: var(--tg-bg);
    color: var(--tg-text);
    box-shadow: var(--shadow-key);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    max-width: 44px;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.duel-key:active {
    transform: scale(0.95);
    background: var(--tg-bg-secondary);
}

.duel-key.wide,
.duel-key-enter,
.duel-key-backspace {
    flex: 1.5;
    max-width: 64px;
    font-size: 0.85rem;
    padding: 0 6px;
}

.duel-key-enter {
    background: var(--tg-button);
    color: var(--tg-button-text);
}

.duel-key-enter:active {
    background: var(--tg-link);
}

.duel-key-backspace {
    background: var(--tg-bg);
}

.duel-key.correct {
    background: var(--color-correct);
    color: white;
    box-shadow: none;
}

.duel-key.present {
    background: var(--color-present);
    color: white;
    box-shadow: none;
}

.duel-key.absent {
    background: var(--color-absent);
    color: white;
    box-shadow: none;
}

/* Keyboard toolbar */
.duel-keyboard-toolbar {
    display: flex;
    direction: ltr;
    justify-content: space-between;
    align-items: center;
    gap: 3px;
    padding: 0 2px;
    width: 100%;
}

.duel-key-action {
    flex: 2;
    max-width: calc(44px * 2 + 3px);
    min-width: 0;
    height: var(--key-height);
    padding: 0 4px;
    border: none;
    border-radius: var(--key-radius);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-key);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.duel-key-action:active {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(0.95);
}

.duel-key-icon {
    width: 22px;
    height: 22px;
    color: #fff;
}

.duel-key-icon.flip {
    transform: scaleX(-1);
}

/* ===== Result Screen ===== */
.duel-result {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 20px;
    text-align: center;
}

.duel-result-icon {
    font-size: 5rem;
    animation: resultBounce 0.6s ease-out;
}

@keyframes resultBounce {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

.duel-result-title {
    font-size: 1.75rem;
    font-weight: 800;
}

.duel-result-title.win {
    background: linear-gradient(135deg, var(--color-correct), var(--color-correct-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.duel-result-title.lose {
    color: var(--tg-destructive);
}

.duel-result-title.draw {
    color: var(--color-present);
}

.duel-result-subtitle {
    font-size: 1rem;
    color: var(--tg-hint);
}

.duel-result-prize {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 24px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-correct);
}

.duel-result-prize.refund {
    color: var(--tg-text);
}

.duel-result-details {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 16px;
    width: 100%;
    max-width: 320px;
    padding: 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
}

.duel-result-player {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.duel-result-player-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-result-player-score {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
}

.duel-result-player-score.winner {
    color: var(--color-correct);
}

.duel-result-divider {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tg-hint);
}

.duel-result-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 280px;
    margin-top: 8px;
}

/* ===== History Modal ===== */
.duel-history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.duel-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
}

.duel-history-opponent {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--tg-text);
}

.duel-history-date {
    font-size: 0.75rem;
    color: var(--tg-hint);
    margin-top: 2px;
}

.duel-history-result {
    display: flex;
    align-items: center;
    gap: 6px;
}

.duel-history-badge {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
}

.duel-history-badge.win {
    background: rgba(52, 199, 89, 0.15);
    color: var(--color-correct);
}

.duel-history-badge.lose {
    background: rgba(255, 59, 48, 0.15);
    color: var(--tg-destructive);
}

.duel-history-badge.draw {
    background: rgba(255, 149, 0, 0.15);
    color: var(--color-present);
}

.duel-history-prize {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-text);
}

/* ===== Error State ===== */
.duel-error {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 16px;
    text-align: center;
}

.duel-error-icon {
    font-size: 3rem;
    color: var(--tg-destructive);
}

.duel-error-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-error-message {
    font-size: 0.9rem;
    color: var(--tg-hint);
}

/* ===== Loading States ===== */
.duel-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 16px;
}

.duel-loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--tg-separator);
    border-top-color: var(--tg-button);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.duel-loading-text {
    font-size: 0.9rem;
    color: var(--tg-hint);
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 380px) {
    .duel-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .duel-stat-card:nth-child(n+3) {
        margin-top: -8px;
    }

    .duel-btn {
        padding: 14px 20px;
        font-size: 0.95rem;
    }
}

/* iPad & larger screens */
@media (min-width: 768px) {
    .duel-lobby {
        max-width: 420px;
        margin: 0 auto;
    }

    .duel-waiting,
    .duel-matchmaking,
    .duel-result,
    .duel-error {
        max-width: 420px;
        margin: 0 auto;
    }

    .duel-game-header {
        max-width: var(--max-app-width);
        margin: 0 auto;
    }
}

/* ===== Additional DuelUI Styles ===== */

/* Waiting Screen Elements */
.waiting-icon {
    font-size: 4rem;
    animation: float 3s ease-in-out infinite;
}

.waiting-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
    margin: 0;
}

.waiting-subtitle {
    font-size: 0.9rem;
    color: var(--tg-hint);
    margin: 0;
}

/* Share Section */
.share-section {
    width: 100%;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.share-link-box {
    display: flex;
    gap: 8px;
    width: 100%;
}

.share-link-input {
    flex: 1;
    padding: 12px 14px;
    border: 1px solid var(--tg-separator);
    border-radius: var(--radius-md);
    background: var(--tg-bg-secondary);
    color: var(--tg-text);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.85rem;
    direction: ltr;
    text-align: center;
}

.copy-btn {
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--tg-button);
    color: var(--tg-button-text);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.copy-btn:active {
    transform: scale(0.95);
    opacity: 0.9;
}

.share-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.share-btn.telegram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-md);
    background: #0088cc;
    color: white;
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.share-btn.telegram:active {
    transform: scale(0.98);
    opacity: 0.9;
}

/* Waiting Info */
.waiting-info {
    display: flex;
    gap: 24px;
    padding: 12px 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
}

.info-item {
    display: flex;
    gap: 6px;
    font-size: 0.9rem;
}

.info-label {
    color: var(--tg-hint);
}

.info-value {
    font-weight: 600;
    color: var(--tg-text);
}

/* Danger Button */
.duel-btn-danger {
    background: transparent;
    color: var(--tg-destructive);
    border: 1px solid var(--tg-destructive);
}

.duel-btn-danger:active {
    background: rgba(255, 59, 48, 0.1);
}

/* Matchmaking Styles */
.matchmaking-animation {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.matchmaking-animation .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--tg-separator);
    border-top-color: var(--tg-button);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.matchmaking-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tg-text);
    margin: 0;
}

.matchmaking-subtitle {
    font-size: 0.9rem;
    color: var(--tg-hint);
    margin: 0;
}

/* Button Icon and Text */
.btn-icon {
    font-size: 1.25rem;
}

.btn-text {
    font-size: 1rem;
    font-weight: 600;
}

.btn-cost {
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.duel-btn-secondary .btn-cost {
    background: var(--tg-separator);
}

/* Section Title (small) */
.duel-active-section .section-title {
    padding: 10px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--tg-hint);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Empty State (in active list) */
.empty-state {
    text-align: center;
    padding: 24px 16px;
    color: var(--tg-hint);
    font-size: 0.9rem;
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 24px 16px;
    color: var(--tg-hint);
    font-size: 0.9rem;
}

/* ===== Tabs for Active/History ===== */
.duel-tabs {
    display: flex;
    gap: 0;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 4px;
}

.duel-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--tg-hint);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.duel-tab.active {
    background: var(--tg-bg);
    color: var(--tg-text);
    box-shadow: var(--shadow-key);
}

.duel-tab:not(.active):active {
    background: rgba(0, 0, 0, 0.05);
}

/* Tab Content */
.duel-tab-content {
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.duel-list {
    max-height: 250px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* List Items */
.duel-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 0.5px solid var(--tg-separator);
    transition: background var(--transition-fast);
}

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

.duel-list-item:active {
    background: var(--tg-bg);
}

.duel-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.duel-item-state {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--tg-text);
}

.duel-item-state.pending {
    color: var(--color-present);
}

.duel-item-state.active {
    color: var(--color-correct);
}

.duel-item-prize {
    font-size: 0.8rem;
    color: var(--tg-hint);
}

.duel-item-btn {
    padding: 8px 14px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--tg-button);
    color: var(--tg-button-text);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.duel-item-btn:active {
    transform: scale(0.95);
    opacity: 0.9;
}

/* History List Items */
.duel-list-item.history {
    cursor: default;
}

.duel-list-item.history:active {
    background: transparent;
}

.duel-list-item.history.win {
    border-inline-start: 3px solid var(--color-correct);
}

.duel-list-item.history.lose {
    border-inline-start: 3px solid var(--tg-destructive);
}

.duel-list-item.history.draw {
    border-inline-start: 3px solid var(--color-present);
}

.duel-item-result {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-item-opponent {
    font-size: 0.8rem;
    color: var(--tg-hint);
}

.duel-list-item.history .duel-item-prize {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-list-item.history .duel-item-prize.positive {
    color: var(--color-correct);
}

/* ===== Duel Game - Use main game styles ===== */
/* The duel game now uses .board, .tile, .keyboard, .keyboard-row, .key */
/* These are inherited from the main style.css */

.duel-game {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.duel-game .game-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    padding-bottom: calc(200px + var(--safe-area-bottom)); /* Space for fixed keyboard */
    min-height: 0;
    overflow-y: auto;
}

.duel-game .board-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Ensure board/keyboard use main game variables */
.duel-game .board {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: var(--tile-gap);
    width: fit-content;
}

.duel-game .row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--tile-gap);
}

/* Keyboard container - FIXED at bottom like main game */
.duel-game .keyboard-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: var(--max-app-width);
    margin: 0 auto;
    padding: 6px 4px;
    padding-bottom: calc(18px + var(--safe-area-bottom));
    background: var(--tg-bg-secondary);
    z-index: 100;
}

.duel-game .keyboard {
    display: flex;
    flex-direction: column;
    gap: 5px;
    max-width: var(--max-keyboard-width);
    margin: 0 auto;
}

/* Duel keyboard inherits OK button styles from main style.css */

/* Result Screen Styling */
.result-icon {
    font-size: 4rem;
    animation: resultBounce 0.6s ease-out;
}

.result-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--tg-text);
    margin: 0;
}

.duel-result.win .result-title {
    color: var(--color-correct);
}

.duel-result.lose .result-title {
    color: var(--tg-destructive);
}

.duel-result.draw .result-title {
    color: var(--color-present);
}

.result-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 300px;
}

.player-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex: 1;
}

.player-label {
    font-size: 0.8rem;
    color: var(--tg-hint);
}

.player-attempts {
    font-size: 1rem;
    font-weight: 600;
    color: var(--tg-text);
}

.player-status {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 8px;
}

.player-status.won {
    background: rgba(52, 199, 89, 0.15);
    color: var(--color-correct);
}

.player-status.lost {
    background: rgba(255, 59, 48, 0.15);
    color: var(--tg-destructive);
}

.vs {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--tg-hint);
    padding: 4px 8px;
}

.result-prize {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
}

.result-prize .prize-label {
    color: var(--tg-hint);
}

.result-prize .prize-amount {
    font-weight: 700;
    color: var(--color-correct);
}

.result-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 260px;
}

/* Spinner for loading */
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--tg-separator);
    border-top-color: var(--tg-button);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ===== Quiz Duel Style Result Screen ===== */

.duel-result {
    padding: 12px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.result-header {
    text-align: center;
    margin-bottom: 12px;
}

.result-header.compact {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.result-header .result-icon {
    font-size: 1.8rem;
}

.result-header .result-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

.result-prize-inline {
    font-size: 0.95rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 8px;
    background: var(--tg-bg-secondary);
}

.result-prize-inline.win {
    color: var(--color-correct);
}

.result-prize-inline.lose {
    color: var(--tg-destructive);
}

.result-prize-inline.draw {
    color: var(--tg-hint);
}

/* Target Word Display */
.result-word {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}

.result-word.compact {
    padding: 6px 12px;
}

.result-word .word-label {
    font-size: 0.85rem;
    color: var(--tg-hint);
}

.result-word .word-value {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-correct);
    letter-spacing: 2px;
}

/* Quiz Duel Style Comparison - Side by Side */
.result-comparison.quiz-duel-style {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    padding: 16px 12px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 100%;
    margin-bottom: 16px;
}

.result-comparison.compact {
    padding: 12px 8px;
    gap: 6px;
    margin-bottom: 12px;
}

/* Player Sides */
.player-result.opponent-side,
.player-result.my-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

/* Opponent Side - Red theme */
.player-result.opponent-side .player-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.player-result.opponent-side .player-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-destructive);
}

/* My Side - Blue theme */
.player-result.my-side .player-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.player-result.my-side .player-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-button);
}

/* Player Avatars */
.player-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.player-avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--tg-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.opponent-side .player-avatar-placeholder {
    border: 2px solid var(--tg-destructive);
}

.my-side .player-avatar-placeholder {
    border: 2px solid var(--tg-button);
}

/* Player Time Display */
.player-time {
    font-size: 0.75rem;
    color: var(--tg-hint-color, #888);
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.opponent-side .player-time {
    color: var(--tg-destructive, #ef4444);
    opacity: 0.8;
}

.my-side .player-time {
    color: var(--tg-button, #3b82f6);
    opacity: 0.8;
}

/* VS Divider */
.vs-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    align-self: center;
}

.vs-divider span {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--tg-hint);
    background: var(--tg-bg);
    padding: 4px 8px;
    border-radius: 8px;
}

/* Mini Board for Result Display */
.result-mini-board {
    display: grid;
    grid-template-rows: repeat(6, 1fr);
    gap: 2px;
}

.result-mini-board .mini-row {
    display: flex;
    gap: 2px;
}

.result-mini-board .mini-tile {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    background: var(--tg-bg);
    border: 1px solid var(--tg-separator);
}

/* Mini tile states */
.result-mini-board .mini-tile.correct {
    background: var(--color-correct);
    border-color: transparent;
}

.result-mini-board .mini-tile.present {
    background: var(--color-present);
    border-color: transparent;
}

.result-mini-board .mini-tile.absent {
    background: var(--color-absent);
    border-color: transparent;
}

/* Player Stats in Result */
.player-stats {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
}

.player-stats .stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    padding: 2px 4px;
}

.player-stats .stat-label {
    color: var(--tg-hint);
}

.player-stats .stat-value {
    font-weight: 600;
    color: var(--tg-text);
}

.player-stats .stat-value.won {
    color: var(--color-correct);
}

.player-stats .stat-value.lost {
    color: var(--tg-destructive);
}

/* Result Prize Display */
.duel-result .result-prize {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
}

.result-prize .prize-icon {
    font-size: 1.2rem;
}

.result-prize .prize-label {
    font-size: 0.9rem;
    color: var(--tg-hint);
}

.result-prize .prize-amount {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--tg-text);
}

.result-prize .prize-amount.positive {
    color: var(--color-correct);
}

.result-prize .prize-amount.negative {
    color: var(--tg-destructive);
}

/* Result Actions */
.duel-result .result-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
}

.duel-result .result-actions.horizontal {
    flex-direction: row;
    gap: 8px;
    max-width: 100%;
}

.result-actions.horizontal .duel-btn {
    flex: 1;
    padding: 10px 12px;
    font-size: 0.9rem;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 380px) {
    .result-comparison.quiz-duel-style {
        padding: 12px 8px;
        gap: 4px;
    }

    .result-mini-board .mini-tile {
        width: 14px;
        height: 14px;
    }

    .player-stats .stat-row {
        font-size: 0.7rem;
    }

    .result-word .word-value {
        font-size: 1.1rem;
        letter-spacing: 1px;
    }
}

/* Larger screens */
@media (min-width: 420px) {
    .result-mini-board .mini-tile {
        width: 20px;
        height: 20px;
        border-radius: 3px;
    }

    .result-mini-board {
        gap: 3px;
    }

    .result-mini-board .mini-row {
        gap: 3px;
    }
}

/* ===== Active Duels List Enhancements ===== */

.duel-list-item.your-turn {
    background: rgba(52, 199, 89, 0.08);
    border-inline-start: 3px solid var(--color-correct);
}

.duel-list-item.waiting {
    border-inline-start: 3px solid var(--color-present);
}

.duel-list-item.pending {
    border-inline-start: 3px solid var(--tg-hint);
}

.duel-item-opponent {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--tg-text);
}

.duel-item-status {
    font-size: 0.8rem;
    color: var(--tg-hint);
}

.duel-item-status.your-turn {
    color: var(--color-correct);
    font-weight: 600;
}

.duel-item-status.waiting {
    color: var(--color-present);
}

.duel-item-status.pending {
    color: var(--tg-hint);
}

.duel-item-btn.primary {
    background: var(--color-correct);
}

/* Duel Item Actions Container */
.duel-item-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Close/Forfeit Button */
.duel-item-close-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255, 59, 48, 0.1);
    color: var(--tg-destructive);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.duel-item-close-btn:active {
    transform: scale(0.9);
    background: rgba(255, 59, 48, 0.2);
}

/* Completed duel result states */
.duel-list-item.won {
    border-color: var(--color-correct);
    background: rgba(106, 170, 100, 0.1);
}

.duel-list-item.lost {
    border-color: var(--tg-destructive);
    background: rgba(255, 59, 48, 0.05);
}

.duel-list-item.draw {
    border-color: var(--color-present);
    background: rgba(201, 180, 88, 0.1);
}

.duel-item-status.won {
    color: var(--color-correct);
}

.duel-item-status.lost {
    color: var(--tg-destructive);
}

.duel-item-status.draw {
    color: var(--color-present);
}

.duel-item-btn.result-btn {
    background: var(--tg-button);
    min-width: 100px;
}

/* ===== Duel End Modal (Win/Lose) ===== */

.duel-end-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease-out;
    padding: 20px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.duel-end-modal {
    background: var(--tg-bg);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    max-width: 300px;
    width: 100%;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.duel-end-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    animation: resultBounce 0.6s ease-out;
}

.duel-end-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 0 8px 0;
    color: var(--tg-text);
}

.duel-end-modal-overlay.win .duel-end-title {
    color: var(--color-correct);
}

.duel-end-modal-overlay.lose .duel-end-title {
    color: var(--tg-destructive);
}

.duel-end-message {
    font-size: 0.95rem;
    color: var(--tg-hint);
    margin: 0 0 24px 0;
    line-height: 1.5;
}

.duel-end-btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 1rem;
}

/* Bounce animation for tiles on win */
@keyframes tileWinBounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-8px) scale(1.05); }
}

.tile.bounce,
.duel-tile.bounce {
    animation: tileWinBounce 0.4s ease-out;
}

/* ===== Waiting for Opponent to Finish ===== */

.duel-waiting.waiting-for-opponent {
    gap: 16px;
}

.my-game-result {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--tg-bg-secondary);
    border-radius: var(--radius-lg);
    margin: 8px 0;
}

.result-status-icon {
    font-size: 1.2rem;
}

.result-status-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--tg-text);
}

.waiting-spinner {
    padding: 20px;
}

.waiting-spinner .spinner {
    margin: 0 auto;
}

/* ===== VS Matchup Screen ===== */
/* Diagonal split screen showing both players before duel */

.duel-vs-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.duel-vs-screen.hidden {
    display: none;
}

/* White background - fades in behind everything */
.vs-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.duel-vs-screen.animate-in .vs-background {
    opacity: 1;
}

/* Blue side (current player - top left) - with gap */
.vs-side-blue {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1565C0 0%, #1976D2 50%, #2196F3 100%);
    /* Offset diagonal inward by 3px for gap */
    clip-path: polygon(0 0, calc(100% - 4px) 0, 0 calc(100% - 4px));
    transform: translate(-100%, -100%);
    transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.duel-vs-screen.animate-in .vs-side-blue {
    transform: translate(0, 0);
}

/* Red side (opponent - bottom right) - with gap */
.vs-side-red {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(315deg, #C62828 0%, #D32F2F 50%, #E53935 100%);
    /* Offset diagonal inward by 3px for gap */
    clip-path: polygon(100% calc(0% + 4px), 100% 100%, calc(0% + 4px) 100%);
    transform: translate(100%, 100%);
    transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: 0.15s;
}

.duel-vs-screen.animate-in .vs-side-red {
    transform: translate(0, 0);
}

/* White diagonal line - hidden by default */
.vs-divider {
    display: none;
}

/* Player info containers - positioned in center of each triangle */
.vs-player-blue,
.vs-player-red {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    z-index: 5;
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.4s ease, transform 0.4s ease;
    transition-delay: 0.4s;
}

/* Blue player - center of top-left triangle (roughly 25% from top-left) */
.vs-player-blue {
    top: 20%;
    left: 20%;
}

/* Red player - center of bottom-right triangle (roughly 25% from bottom-right) */
.vs-player-red {
    bottom: 20%;
    right: 20%;
    transition-delay: 0.5s;
}

.duel-vs-screen.animate-in .vs-player-blue,
.duel-vs-screen.animate-in .vs-player-red {
    opacity: 1;
    transform: scale(1);
}

/* Player avatar - large solid circle */
.vs-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: #d9d9d9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.vs-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vs-avatar-placeholder {
    font-size: 2.5rem;
    color: #666;
}

/* Player name */
.vs-name {
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    text-align: center;
    max-width: 160px;
    line-height: 1.3;
    /* Allow 2 lines for long names */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* VS text in center */
.vs-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    color: #000;
    text-shadow:
        2px 2px 0 #fff,
        -2px -2px 0 #fff,
        2px -2px 0 #fff,
        -2px 2px 0 #fff,
        0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 10;
    opacity: 0;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
    transition-delay: 0.7s;
}

.duel-vs-screen.animate-in .vs-text {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

/* Animate out - slide back to corners */
.duel-vs-screen.animate-out .vs-side-blue {
    transform: translate(-100%, -100%);
    transition-delay: 0.1s;
}

.duel-vs-screen.animate-out .vs-side-red {
    transform: translate(100%, 100%);
    transition-delay: 0.1s;
}

.duel-vs-screen.animate-out .vs-divider,
.duel-vs-screen.animate-out .vs-text,
.duel-vs-screen.animate-out .vs-player-blue,
.duel-vs-screen.animate-out .vs-player-red {
    opacity: 0;
    transition-delay: 0s;
}

/* Responsive adjustments - Small phones */
@media (max-width: 380px) {
    .vs-avatar {
        width: 70px;
        height: 70px;
    }

    .vs-avatar-placeholder {
        font-size: 1.8rem;
    }

    .vs-name {
        font-size: 1rem;
        max-width: 100px;
    }

    .vs-text {
        font-size: 2.5rem;
    }

    .vs-player-blue {
        top: 18%;
        left: 15%;
    }

    .vs-player-red {
        bottom: 18%;
        right: 15%;
    }
}

/* Tablet and larger */
@media (min-width: 768px) {
    .vs-avatar {
        width: 120px;
        height: 120px;
    }

    .vs-avatar-placeholder {
        font-size: 3rem;
    }

    .vs-name {
        font-size: 1.6rem;
        max-width: 220px;
    }

    .vs-text {
        font-size: 4.5rem;
    }

    .vs-player-blue {
        top: 22%;
        left: 22%;
    }

    .vs-player-red {
        bottom: 22%;
        right: 22%;
    }
}

/* ===== Duel Booster Styles ===== */

/* Booster buttons container */
.duel-boosters {
    display: flex;
    gap: 8px;
    justify-content: center;
    padding: 8px 16px;
    background: var(--tg-bg-secondary);
    border-bottom: 0.5px solid var(--tg-separator);
}

/* Individual booster button */
.duel-booster-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--tg-bg);
    border: 1px solid var(--tg-separator);
    border-radius: var(--radius-md);
    font-family: 'Vazirmatn', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tg-text);
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.duel-booster-btn:hover {
    background: var(--tg-bg-secondary);
    border-color: var(--tg-button);
}

.duel-booster-btn:active {
    transform: scale(0.95);
}

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

.duel-booster-btn .booster-icon {
    font-size: 1rem;
}

.duel-booster-btn .booster-name {
    font-size: 0.8rem;
}

/* Booster used indicator */
.duel-booster-used {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--tg-bg-secondary);
    border-bottom: 0.5px solid var(--tg-separator);
    font-size: 0.85rem;
    color: var(--tg-hint);
}

/* Opponent booster badge (in header) */
.opponent-booster-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 6px;
    background: rgba(255, 149, 0, 0.15);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--color-present);
    margin-inline-start: 4px;
}

/* Revealed hint tile highlight */
.tile.revealed-hint,
.duel-tile.revealed-hint {
    border-color: var(--color-correct) !important;
    box-shadow: 0 0 8px rgba(52, 199, 89, 0.4);
}

/* Keyboard key with hint revealed */
.key.hint-revealed {
    background: var(--color-correct) !important;
    color: white !important;
    box-shadow: 0 0 8px rgba(52, 199, 89, 0.4);
}

/* Eliminated hint on keyboard */
.key.eliminated-hint {
    background: var(--color-absent) !important;
    color: rgba(255, 255, 255, 0.5) !important;
    opacity: 0.4;
}

/* Coin icon in cost display */
.cost-coin-icon,
.info-coin-icon,
.prize-coin-icon,
.prize-text-coin {
    width: 14px;
    height: 14px;
    vertical-align: middle;
    margin-inline-end: 2px;
}

.prize-text-coin {
    width: 16px;
    height: 16px;
}

/* Responsive adjustments for boosters */
@media (max-width: 380px) {
    .duel-boosters {
        padding: 6px 12px;
        gap: 6px;
    }

    .duel-booster-btn {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    .duel-booster-btn .booster-icon {
        font-size: 0.9rem;
    }

    .duel-booster-btn .booster-name {
        font-size: 0.75rem;
    }
}