/* ═══════════════════════════════════════════════════════════════
   GAME SYSTEMS — Rival, Boss Battles, Power-ups, Streaks, Mood
   ═══════════════════════════════════════════════════════════════ */

/* ── Rival Card ── */
.rival-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 20px 0;
    border: 2px solid rgba(255,255,255,0.08);
    text-align: center;
}
.rival-card.rival-lost { border-color: var(--success); }
.rival-card.rival-won { border-color: var(--error); }
.rival-card.rival-tie { border-color: var(--warning); }

.rival-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}
.rival-avatar, .rival-you-avatar { font-size: 32px; }
.rival-name, .rival-you-name { font-size: 16px; font-weight: 700; }
.rival-vs {
    font-size: 12px;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0 8px;
}

.rival-scores {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 12px;
}
.rival-score {
    font-size: 36px;
    font-weight: 900;
    font-family: 'Space Grotesk', sans-serif;
    color: var(--text-secondary);
}
.rival-score.winner { color: var(--accent-light); }
.rival-divider { color: var(--text-muted); font-size: 24px; }

.rival-result {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}
.rival-taunt {
    font-size: 14px;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 400px;
    margin: 0 auto;
}

/* ── Power-ups ── */
.powerup-inventory {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin: 16px 0;
}
.powerup-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid rgba(168,85,247,0.2);
    min-width: 80px;
    transition: var(--transition);
}
.powerup-item.empty {
    opacity: 0.3;
    border-color: rgba(255,255,255,0.05);
}
.powerup-icon { font-size: 24px; }
.powerup-count {
    font-size: 20px;
    font-weight: 800;
    font-family: 'Space Grotesk', sans-serif;
    color: var(--accent-light);
}
.powerup-name {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Power-up bar in quizzes */
.powerup-bar {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 20px;
}
.powerup-use-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-elevated);
    border: 1px solid rgba(168,85,247,0.2);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}
.powerup-use-btn:hover:not(.disabled) {
    border-color: var(--accent);
    color: var(--accent-light);
}
.powerup-use-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.powerup-use-btn .pu-icon { font-size: 16px; }
.powerup-use-btn .pu-count {
    background: var(--accent-dark);
    color: white;
    border-radius: 10px;
    padding: 1px 6px;
    font-size: 11px;
    font-weight: 700;
}

/* ── Boss Battle ── */
.boss-battle-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(231,76,60,0.08), rgba(168,85,247,0.08));
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    border: 1px solid rgba(231,76,60,0.2);
}

.boss-side, .player-side {
    display: flex;
    align-items: center;
    gap: 12px;
}
.player-side { flex-direction: row-reverse; }

.boss-avatar { font-size: 40px; }
.boss-info, .player-info { min-width: 120px; }
.boss-name {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
}

.hp-bar {
    height: 12px;
    background: rgba(255,255,255,0.08);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 4px;
}
.hp-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.5s ease;
}
.hp-text {
    font-size: 11px;
    color: var(--text-muted);
}

.battle-vs {
    font-size: 28px;
    animation: battlePulse 1.5s ease infinite;
}
@keyframes battlePulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

.boss-result {
    text-align: center;
    padding: 32px;
}
.boss-result.victory { color: var(--success); }
.boss-result.defeat { color: var(--error); }
.boss-result h2 {
    font-size: 28px;
    margin: 16px 0 8px;
}
.boss-result p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

/* ── Streak Rewards ── */
.streak-reward {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(243,156,18,0.1), rgba(168,85,247,0.1));
    border-radius: var(--radius);
    border: 1px solid rgba(243,156,18,0.3);
    margin: 12px 0;
    animation: achievePop 0.5s ease;
}
.streak-reward-icon { font-size: 32px; }
.streak-reward h3 {
    font-size: 16px;
    color: var(--warning);
    margin-bottom: 2px;
}
.streak-reward p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ── Daily Login Bonus ── */
.login-bonus-popup {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}
.login-bonus-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    max-width: 420px;
    border: 2px solid var(--accent);
    box-shadow: 0 0 40px rgba(168,85,247,0.3);
    animation: popIn 0.4s ease;
}
.login-emoji { font-size: 56px; margin-bottom: 12px; }
.login-bonus-content h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--accent-light);
}
.login-bonus-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}
.login-streak-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}
.streak-fire { font-size: 28px; }
.streak-count {
    font-size: 36px;
    font-weight: 900;
    font-family: 'Space Grotesk', sans-serif;
    color: var(--warning);
}
.streak-label {
    font-size: 14px;
    color: var(--text-muted);
}

/* ── Mood Check-in ── */
.mood-checkin {
    margin-bottom: 24px;
    text-align: center;
}
.mood-checkin h3 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.mood-options {
    display: flex;
    justify-content: center;
    gap: 12px;
}
.mood-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 20px;
    background: var(--bg-card);
    border: 2px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text);
}
.mood-btn:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}
.mood-emoji { font-size: 32px; }
.mood-label { font-size: 12px; color: var(--text-secondary); }

/* ── Responsive ── */
@media (max-width: 768px) {
    .boss-battle-header { flex-direction: column; gap: 12px; }
    .player-side { flex-direction: row; }
    .rival-scores { gap: 12px; }
    .rival-score { font-size: 28px; }
    .powerup-inventory { flex-wrap: wrap; }
    .mood-options { flex-wrap: wrap; }
}