/* =====================================================
   NEXUS GAMIFICATION — Points, Badges, Leaderboard UI
   ===================================================== */

/* ── Level Badge ─────────────────────────────────────── */
.nx-level-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.25);
    letter-spacing: 0.3px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Level variants (gradient applied via inline style from PHP, these are fallbacks) */
.nx-level-bronze   { background: linear-gradient(135deg, #CD7F32, #e8a96c); }
.nx-level-silver   { background: linear-gradient(135deg, #A8A9AD, #d4d5d9); }
.nx-level-gold     { background: linear-gradient(135deg, #FFD700, #fff176); color: #7a6300; text-shadow: none; }
.nx-level-platinum { background: linear-gradient(135deg, #1877F2, #a78bfa); }

/* ── Points Bubble ───────────────────────────────────── */
.nx-points-bubble {
    position: fixed;
    z-index: 99999;
    background: linear-gradient(135deg, #1877F2, #4facfe);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 100px;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(24,119,242,0.35);
    opacity: 0;
    transform: translateY(0) scale(0.8);
    white-space: nowrap;
}
.nx-points-bubble-animate {
    animation: nx-bubble-rise 1.3s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
@keyframes nx-bubble-rise {
    0%   { opacity: 0;   transform: translateY(0px) scale(0.8); }
    15%  { opacity: 1;   transform: translateY(-8px) scale(1); }
    70%  { opacity: 1;   transform: translateY(-40px) scale(1.05); }
    100% { opacity: 0;   transform: translateY(-65px) scale(0.9); }
}

/* ── Badge Grid ──────────────────────────────────────── */
.nx-badge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: var(--nx-spacing-md);
    padding: var(--nx-spacing-sm) 0;
}

/* ── Badge Item ──────────────────────────────────────── */
.nx-badge-item {
    background: var(--nx-card);
    border: 1px solid var(--nx-border-light);
    border-radius: var(--nx-radius);
    padding: var(--nx-spacing-md) var(--nx-spacing-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: default;
}
.nx-badge-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--nx-shadow-md);
}

.nx-badge-icon-wrap {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nx-badge-emoji {
    font-size: 2rem;
    line-height: 1;
    display: block;
}

/* Earned: glowing ring */
.nx-badge-earned .nx-badge-icon-wrap {
    background: linear-gradient(135deg, var(--nx-primary), #a78bfa);
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(24,119,242,0.2), 0 4px 12px rgba(24,119,242,0.25);
}

/* Locked: greyed out */
.nx-badge-locked {
    opacity: 0.5;
    filter: grayscale(0.8);
}
.nx-badge-lock-overlay {
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 22px;
    height: 22px;
    background: var(--nx-text-muted);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border: 2px solid var(--nx-card);
}

.nx-badge-name {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--nx-text-primary);
    margin: 0;
    line-height: 1.3;
}
.nx-badge-desc {
    font-size: 0.75rem;
    color: var(--nx-text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* ── Badge Notification (slide-in) ───────────────────── */
.nx-badge-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99998;
    background: var(--nx-card);
    border: 1px solid var(--nx-border-light);
    border-radius: var(--nx-radius-lg);
    box-shadow: var(--nx-shadow-lg);
    padding: 16px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    max-width: 320px;
    min-width: 260px;
    transform: translateX(calc(100% + 32px));
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
    border-left: 4px solid var(--nx-primary);
}
.nx-badge-notification-show {
    transform: translateX(0);
    opacity: 1;
}
.nx-badge-notif-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--nx-primary), #a78bfa);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nx-badge-notif-body { flex: 1; min-width: 0; }
.nx-badge-notif-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--nx-primary);
    margin: 0 0 3px;
}
.nx-badge-notif-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--nx-text-primary);
    margin: 0 0 3px;
}
.nx-badge-notif-desc {
    font-size: 0.8125rem;
    color: var(--nx-text-secondary);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nx-badge-notif-close {
    background: none;
    border: none;
    color: var(--nx-text-muted);
    cursor: pointer;
    padding: 2px;
    flex-shrink: 0;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
}
.nx-badge-notif-close:hover { color: var(--nx-text-primary); background: var(--nx-border); }

/* ── Leaderboard ─────────────────────────────────────── */
.nx-leaderboard { overflow-x: auto; }

.nx-leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}
.nx-leaderboard-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--nx-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--nx-border);
}
.nx-lb-col-rank   { width: 52px; text-align: center; }
.nx-lb-col-level  { width: 110px; }
.nx-lb-col-points { width: 90px; text-align: right; }

.nx-lb-row {
    border-bottom: 1px solid var(--nx-border);
    transition: background 0.15s;
}
.nx-lb-row:hover { background: var(--nx-border); }
.nx-lb-row:last-child { border-bottom: none; }

/* Gold/Silver/Bronze row highlight */
.nx-lb-rank-gold   { background: rgba(255, 215, 0, 0.07); }
.nx-lb-rank-silver { background: rgba(168, 169, 173, 0.07); }
.nx-lb-rank-bronze { background: rgba(205, 127, 50, 0.07); }

.nx-lb-rank {
    width: 52px;
    padding: 12px 8px;
    text-align: center;
}
.nx-lb-medal { font-size: 1.25rem; display: block; }
.nx-lb-rank-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--nx-border);
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--nx-text-secondary);
}

.nx-lb-user { padding: 10px 12px; }
.nx-lb-user-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
}
.nx-lb-user-link:hover .nx-lb-name { color: var(--nx-primary); }
.nx-lb-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.nx-lb-name {
    font-weight: 600;
    color: var(--nx-text-primary);
    font-size: 0.9375rem;
    transition: color 0.15s;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nx-lb-level { padding: 10px 12px; }
.nx-lb-points {
    padding: 10px 12px;
    text-align: right;
    white-space: nowrap;
}
.nx-lb-points strong {
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--nx-text-primary);
}
.nx-lb-pts-label {
    font-size: 0.75rem;
    color: var(--nx-text-muted);
    margin-left: 2px;
}

/* Period switcher */
.nx-leaderboard-period-switcher {
    display: flex;
    gap: 6px;
    margin-bottom: var(--nx-spacing-md);
}
.nx-leaderboard-period-btn {
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1.5px solid var(--nx-border);
    background: transparent;
    color: var(--nx-text-secondary);
    cursor: pointer;
    transition: all 0.18s;
}
.nx-leaderboard-period-btn:hover { border-color: var(--nx-primary); color: var(--nx-primary); }
.nx-leaderboard-period-btn.active { background: var(--nx-primary); border-color: var(--nx-primary); color: #fff; }

/* ── Progress Bar ────────────────────────────────────── */
.nx-level-display {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.nx-level-points-display {
    display: flex;
    align-items: baseline;
    gap: 5px;
}
.nx-points-total {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--nx-text-primary);
    line-height: 1;
}
.nx-points-label {
    font-size: 0.875rem;
    color: var(--nx-text-secondary);
}

.nx-level-progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.nx-progress-bar {
    height: 8px;
    background: var(--nx-border);
    border-radius: 100px;
    overflow: hidden;
}
.nx-progress-fill {
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--nx-primary) 0%, #a78bfa 100%);
    width: 0%;
    /* width animated via JS */
}
.nx-level-progress-label {
    font-size: 0.8125rem;
    color: var(--nx-text-secondary);
    margin: 0;
}
.nx-level-max-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--nx-primary);
    margin: 0;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
    .nx-badge-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .nx-badge-notification {
        right: 12px;
        bottom: 80px; /* above mobile nav */
        max-width: calc(100vw - 24px);
    }
    .nx-leaderboard-table th,
    .nx-lb-points,
    .nx-lb-user,
    .nx-lb-level,
    .nx-lb-rank { padding: 8px 6px; }
    .nx-lb-col-level { display: none; }
    .nx-lb-level     { display: none; }
    .nx-lb-name { max-width: 120px; }
}

@media (max-width: 400px) {
    .nx-badge-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}