/* =====================================================
   LUMI ✨ — BioGlow AI UX Guide Agent
   Premium floating guide widget — Cute anime character
   ===================================================== */

/* ---------- Floating Avatar Button (Natural Character) ---------- */
.lumi-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 90px;
    height: 90px;
    cursor: pointer;
    z-index: 9998;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.35s;
    animation: lumiFabEntry 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both;
    animation-delay: 1.2s;
    border-radius: 0;
    background: none;
}
.lumi-fab:hover {
    transform: scale(1.1) translateY(-5px);
    filter: drop-shadow(0 8px 20px rgba(211, 94, 121, 0.4));
}
.lumi-fab img {
    width: 100%;
    height: 100%;
    border-radius: 18px;
    object-fit: contain;
    border: none;
    box-shadow: none;
    filter: drop-shadow(0 4px 12px rgba(10, 38, 71, 0.25));
    transition: filter 0.35s;
    background: transparent;
}
.lumi-fab:hover img {
    filter: drop-shadow(0 6px 18px rgba(211, 94, 121, 0.35));
    box-shadow: none;
}

/* Soft glow behind character */
.lumi-fab::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(211, 94, 121, 0.2) 0%, rgba(44, 116, 179, 0.1) 50%, transparent 70%);
    animation: lumiGlow 3s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

/* Sparkle particles */
.lumi-fab::after {
    content: '✨';
    position: absolute;
    top: -2px;
    right: -2px;
    font-size: 16px;
    animation: lumiSparkle 2s ease-in-out infinite;
    pointer-events: none;
}

@keyframes lumiGlow {
    0%, 100% { opacity: 0.5; transform: translateX(-50%) scale(1); }
    50%      { opacity: 0.8; transform: translateX(-50%) scale(1.2); }
}
@keyframes lumiSparkle {
    0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
    50%      { opacity: 0.5; transform: scale(0.7) rotate(20deg); }
}

/* Greeting tooltip on first visit */
.lumi-greeting {
    position: absolute;
    bottom: 110px;
    right: -5px;
    background: linear-gradient(135deg, #fff, #fef0f4);
    color: #0A2647;
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(10, 38, 71, 0.15), 0 0 0 1px rgba(211, 94, 121, 0.1);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(8px);
    animation: lumiGreetIn 0.5s ease forwards;
    animation-delay: 2.2s;
    pointer-events: none;
}
.lumi-greeting::after {
    content: '';
    position: absolute;
    bottom: -6px;
    right: 32px;
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, #fef0f4, #fff);
    transform: rotate(45deg);
    box-shadow: 2px 2px 4px rgba(0,0,0,0.04);
}

@keyframes lumiFabEntry {
    from { opacity: 0; transform: scale(0.3) translateY(30px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes lumiGreetIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Guide Panel ---------- */
.lumi-panel {
    position: fixed;
    bottom: 110px;
    right: 20px;
    width: 370px;
    max-height: 520px;
    background: rgba(10, 38, 71, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 60px rgba(10, 38, 71, 0.4), 0 0 0 1px rgba(255,255,255,0.05);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.4) translateY(40px);
    transform-origin: bottom right;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
}
.lumi-panel.open {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: all;
}

/* Panel Header */
.lumi-panel-header {
    padding: 20px 20px 0 20px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}
.lumi-panel-avatar {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    object-fit: contain;
    border: none;
    background: rgba(255,255,255,0.08);
    padding: 2px;
    filter: drop-shadow(0 2px 8px rgba(211, 94, 121, 0.2));
    flex-shrink: 0;
}
.lumi-close-btn {
    background: rgba(255,255,255,0.1);
    border: none;
    color: rgba(255,255,255,0.6);
    width: 30px;
    height: 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}
.lumi-close-btn:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

/* Intro text */
.lumi-intro {
    padding: 16px 20px 0 20px;
}
.lumi-intro h3 {
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 6px 0;
}
.lumi-intro p {
    color: rgba(255,255,255,0.7);
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    margin: 0;
    line-height: 1.5;
}

/* Action Buttons */
.lumi-actions {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.lumi-action-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1.5px solid rgba(255,255,255,0.12);
    background: rgba(255,255,255,0.06);
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
}
.lumi-action-btn:hover {
    background: rgba(44, 116, 179, 0.3);
    border-color: rgba(44, 116, 179, 0.5);
    transform: translateX(4px);
}
.lumi-action-btn.primary {
    background: linear-gradient(135deg, rgba(44,116,179,0.5), rgba(44,116,179,0.3));
    border-color: rgba(44,116,179,0.4);
}
.lumi-action-btn.primary:hover {
    background: linear-gradient(135deg, rgba(44,116,179,0.7), rgba(44,116,179,0.5));
}
.lumi-action-icon {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}
.lumi-dismiss-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.4);
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 8px;
    text-align: center;
    transition: color 0.2s;
}
.lumi-dismiss-btn:hover { color: rgba(255,255,255,0.7); }

/* ---------- Tips Panel (scrollable) ---------- */
.lumi-tips-view {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}
.lumi-tips-view.active { display: flex; }
.lumi-main-view.hidden { display: none; }

.lumi-tips-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
}
.lumi-back-btn {
    background: rgba(255,255,255,0.1);
    border: none;
    color: rgba(255,255,255,0.7);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}
.lumi-back-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }
.lumi-tips-header h4 {
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
}

/* Tips list */
.lumi-tips-list {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.lumi-tips-list::-webkit-scrollbar { width: 4px; }
.lumi-tips-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 10px; }

.lumi-tip-card {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    padding: 14px 16px;
    animation: lumiTipIn 0.35s ease-out both;
}
.lumi-tip-card:nth-child(1) { animation-delay: 0.05s; }
.lumi-tip-card:nth-child(2) { animation-delay: 0.1s; }
.lumi-tip-card:nth-child(3) { animation-delay: 0.15s; }
.lumi-tip-card:nth-child(4) { animation-delay: 0.2s; }
.lumi-tip-card:nth-child(5) { animation-delay: 0.25s; }

@keyframes lumiTipIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.lumi-tip-title {
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    margin: 0 0 4px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.lumi-tip-title i { color: #60a5fa; font-size: 0.8rem; }
.lumi-tip-text {
    color: rgba(255,255,255,0.6);
    font-family: 'Poppins', sans-serif;
    font-size: 0.78rem;
    margin: 0;
    line-height: 1.5;
}
.lumi-tip-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #60a5fa;
    font-family: 'Poppins', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    margin-top: 8px;
    transition: color 0.2s;
}
.lumi-tip-link:hover { color: #93c5fd; }

/* ---------- Quick Nav Links ---------- */
.lumi-nav-view { 
    display: none; 
    flex-direction: column; 
    flex: 1;
    min-height: 0;
}
.lumi-nav-view.active { display: flex; }

.lumi-nav-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.lumi-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.06);
    color: #fff;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
}
.lumi-nav-item:hover {
    background: rgba(44, 116, 179, 0.25);
    border-color: rgba(44,116,179,0.3);
    transform: translateX(3px);
}
.lumi-nav-item i {
    width: 20px;
    text-align: center;
    color: #60a5fa;
    font-size: 0.9rem;
}
.lumi-nav-item.active-page {
    background: rgba(44,116,179,0.3);
    border-color: rgba(44,116,179,0.4);
}
.lumi-nav-item.active-page::after {
    content: '← You are here';
    font-size: 0.65rem;
    color: rgba(255,255,255,0.4);
    margin-left: auto;
}

/* ---------- Responsive ---------- */
@media (max-width: 420px) {
    .lumi-panel {
        width: calc(100vw - 24px);
        right: 12px;
        bottom: 95px;
        max-height: 65vh;
    }
    .lumi-fab { bottom: 12px; right: 12px; width: 76px; height: 76px; }
    /* Arrow above smaller Lumi: bottom 12 + height 76 + gap 10 = 98px */
    .back-to-top {
        bottom: 98px !important;
        /* Centered: right 12 + (76 - 38) / 2 = 31px */
        right: 31px !important;
    }
}