/* ========================================
   NOVA AI GAMES - Modals & Overlays
   Mode Selection, Pregame, Ads, Daily Bonus
   ======================================== */

/* Mode Selection Screen */
.mode-selection {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    min-height: 100vh;
    justify-content: center;
}

.mode-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.mode-header h1 {
    font-size: 28px;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.mode-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Welcome Logo & Banner */
.welcome-logo {
    width: 100px;
    height: 100px;
    border-radius: 24px;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.welcome-banner {
    width: 100%;
    max-width: 320px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

/* Mode Cards */
.mode-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.mode-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.mode-card.learn {
    border-color: rgba(34, 197, 94, 0.3);
}

.mode-card.learn:hover {
    border-color: var(--success);
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.2);
}

.mode-card.earn {
    border-color: rgba(245, 158, 11, 0.3);
}

.mode-card.earn:hover {
    border-color: var(--warning);
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.2);
}

.mode-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.mode-card h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.mode-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.mode-features {
    text-align: left;
    font-size: 13px;
}

.mode-features li {
    padding: 4px 0;
    color: var(--text-secondary);
}

.mode-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
}

.mode-card.learn .mode-badge {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.mode-card.earn .mode-badge {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.earn-lock-notice {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: #fca5a5;
}

.lock-icon {
    font-size: 14px;
}

/* Pre-Game Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.pregame-modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 340px;
    width: 90%;
    text-align: center;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.pregame-modal-content h2 {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pregame-modal-content>p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.pregame-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.pregame-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    background: var(--bg-glass);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pregame-btn:hover {
    border-color: var(--accent-primary);
    transform: scale(1.02);
}

.pregame-btn.learn:hover {
    border-color: var(--success);
    background: rgba(34, 197, 94, 0.1);
}

.pregame-btn.earn:hover {
    border-color: #fbbf24;
    background: rgba(245, 158, 11, 0.1);
}

.pregame-btn.earn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.pregame-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
}

.pregame-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.pregame-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.pregame-earn-locked {
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.pregame-earn-locked p {
    font-size: 13px;
    color: #fca5a5;
    margin: 0;
}

.days-remaining {
    font-weight: 600;
    margin-top: var(--spacing-xs) !important;
}

.pregame-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-glass);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.pregame-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* Ad Overlay */
.ad-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 400;
    padding: var(--spacing-lg);
}

.ad-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 340px;
    overflow: hidden;
}

.ad-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    font-size: 14px;
    color: var(--text-secondary);
}

.ad-timer {
    background: var(--accent-gradient);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-weight: 700;
    color: white;
}

.ad-content {
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
}

.ad-reward {
    padding: var(--spacing-md);
    text-align: center;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(234, 179, 8, 0.1));
    color: #fbbf24;
    font-weight: 600;
}

/* Daily Bonus Popup */
.daily-bonus-popup {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    padding: var(--spacing-lg);
}

.daily-bonus-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 340px;
    width: 100%;
    text-align: center;
}

.daily-bonus-content h2 {
    font-size: 24px;
    margin-bottom: var(--spacing-md);
}

.streak-days {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: var(--spacing-lg);
}

.streak-day {
    width: 40px;
    height: 50px;
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.streak-day.active {
    background: var(--accent-gradient);
}

.streak-day.claimed {
    background: rgba(34, 197, 94, 0.3);
    border: 1px solid var(--success);
}

.streak-day .day-num {
    font-weight: 700;
}

.streak-day .day-coins {
    font-size: 10px;
    color: var(--text-secondary);
}

.bonus-reward {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.bonus-coins {
    font-size: 32px;
    font-weight: 800;
    color: #fbbf24;
    margin-bottom: var(--spacing-lg);
}

/* Missions Section */
.missions-section {
    padding: var(--spacing-lg);
}

.missions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.missions-header h3 {
    font-size: 18px;
}

.missions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mission-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

.mission-card.complete {
    border: 1px solid var(--success);
    background: rgba(34, 197, 94, 0.1);
}

.mission-card.claimed {
    opacity: 0.5;
}

.mission-icon {
    font-size: 28px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border-radius: var(--radius-md);
}

.mission-info {
    flex: 1;
}

.mission-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
}

.mission-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.mission-progress {
    height: 4px;
    background: var(--bg-glass);
    border-radius: 2px;
    overflow: hidden;
}

.mission-progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    transition: width 0.3s ease;
}

.mission-reward {
    padding: 6px 12px;
    background: rgba(245, 158, 11, 0.2);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 700;
    color: #fbbf24;
}

.mission-claim-btn {
    padding: 8px 16px;
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 600;
    cursor: pointer;
}

.mission-claim-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Coin Exchange */
.exchange-section {
    padding: var(--spacing-lg);
}

.exchange-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
}

.exchange-rate {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-size: 24px;
}

.exchange-arrow {
    color: var(--text-secondary);
}

.exchange-input {
    background: var(--bg-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-size: 24px;
    font-weight: 700;
    color: white;
    text-align: center;
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.exchange-result {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.exchange-result span {
    color: #fbbf24;
    font-weight: 700;
}

/* ========================================
   BONUS ADS SECTION
   ======================================== */

.bonus-ads-section {
    margin-top: var(--spacing-xl);
    display: block;
}

.bonus-ads-section h3 {
    font-size: 16px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.bonus-ads-card {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(234, 179, 8, 0.08));
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.bonus-ads-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: var(--spacing-lg);
}

.bonus-stat {
    text-align: center;
}

.bonus-stat-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #fbbf24;
}

.bonus-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.bonus-ads-timer {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.bonus-watch-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f59e0b, #d97706);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.bonus-watch-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
}

.bonus-watch-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.bonus-reward-hint {
    margin-top: var(--spacing-md);
    font-size: 13px;
    color: var(--text-muted);
}

/* Ad Progress Bar */
.ad-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: var(--spacing-md);
    overflow: hidden;
}

.ad-progress-bar {
    height: 100%;
    background: var(--accent-gradient);
    width: 0%;
    transition: width 0.3s linear;
}

.bonus-progress {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

/* Bonus Ad Overlay Enhancements */
.bonus-ad-container {
    border: 2px solid rgba(245, 158, 11, 0.5);
}

.bonus-reward {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.bonus-coins-display {
    font-size: 24px;
    font-weight: 800;
    color: #fbbf24;
}

.bonus-hint {
    font-size: 12px;
    color: var(--text-secondary);
}