/* ==========================================================================
   DISEÑO Y FE - SECCIÓN LABORATORIO ESCOLAR (ESTILO PREMIUM GLASSMORPHISM)
   ========================================================================== */

/* 1. Héroe del Laboratorio */
.lab-hero {
    min-height: 75vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 140px 6% 80px 6%;
    z-index: 10;
    overflow: hidden;
}

.lab-hero-content {
    max-width: 800px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lab-hero h1 {
    font-size: 3.8rem;
    line-height: 1.15;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.lab-hero p {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 650px;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

/* Orbes de fondo decorativos */
.lab-hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    opacity: 0.15;
    z-index: 1;
    animation: floatOrb 12s ease-in-out infinite alternate;
}

.lab-hero-orb--teal {
    top: 15%;
    left: 15%;
    width: 350px;
    height: 350px;
    background: var(--color-teal);
    animation-delay: 0s;
}

.lab-hero-orb--purple {
    bottom: 10%;
    right: 15%;
    width: 400px;
    height: 400px;
    background: var(--color-purple);
    animation-delay: -4s;
}

@keyframes floatOrb {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-40px) scale(1.1); }
}

/* Scroll Cue */
.lab-scroll-cue {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-text-low);
    animation: bounceScroll 2s infinite;
    cursor: pointer;
    z-index: 2;
}

.lab-scroll-cue:hover {
    color: var(--color-teal);
}

@keyframes bounceScroll {
    0%, 20%, 50%, 80%, 100% { transform: translate(-50%, 0); }
    40% { transform: translate(-50%, -10px); }
    60% { transform: translate(-50%, -5px); }
}

/* 2. Estadísticas de Laboratorio */
.lab-stats {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    border: var(--border-thin);
    border-radius: 100px;
    padding: 0.8rem 2.2rem;
    gap: 2rem;
    box-shadow: 0 8px 32px rgba(0, 44, 105, 0.04);
}

.lab-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lab-stat-num {
    font-family: var(--font-title);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-text-white), var(--color-text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lab-stat-label {
    font-size: 0.78rem;
    color: var(--color-text-low);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 2px;
}

.lab-stat-divider {
    width: 1px;
    height: 30px;
    background: rgba(0, 44, 105, 0.1);
}

/* 3. Navegación por Pestañas (Tabs) */
.lab-tabs-bar {
    position: sticky;
    top: 80px;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: var(--border-thin);
    padding: 1.2rem 6%;
    margin-bottom: 3rem;
    transition: var(--transition-smooth);
}

.main-header.scrolled + .lab-tabs-bar {
    top: 65px;
}

.lab-tabs-inner {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.lab-tab {
    background: #ffffff;
    border: var(--border-thin);
    border-radius: 14px;
    padding: 1.1rem 1.5rem;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.lab-tab::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-teal), transparent);
    transform: scaleX(0);
    transition: var(--transition-smooth);
    opacity: 0.8;
}

.lab-tab:hover {
    color: var(--color-text-white);
    background: rgba(0, 44, 105, 0.02);
    border-color: rgba(0, 44, 105, 0.15);
}

.lab-tab.active {
    color: var(--color-teal);
    background: rgba(27, 221, 184, 0.04);
    border-color: rgba(27, 221, 184, 0.35);
    box-shadow: 0 8px 25px rgba(27, 221, 184, 0.06);
}

.lab-tab.active::before {
    transform: scaleX(1);
}

/* Indicadores de colores para pestañas específicas en hover/active */
.lab-tab[data-gallery="bitacora"].active {
    color: var(--color-purple);
    background: rgba(167, 139, 250, 0.04);
    border-color: rgba(167, 139, 250, 0.35);
}
.lab-tab[data-gallery="bitacora"].active::before {
    background: linear-gradient(90deg, transparent, var(--color-purple), transparent);
}

.lab-tab[data-gallery="anatomia"].active {
    color: var(--color-amber);
    background: rgba(251, 191, 36, 0.04);
    border-color: rgba(251, 191, 36, 0.35);
}
.lab-tab[data-gallery="anatomia"].active::before {
    background: linear-gradient(90deg, transparent, var(--color-amber), transparent);
}

.lab-tab-icon {
    font-size: 1.2rem;
    transition: var(--transition-smooth);
}

.lab-tab:hover .lab-tab-icon {
    transform: scale(1.15) rotate(5deg);
}

.lab-tab-count {
    background: rgba(255, 255, 255, 0.06);
    border: var(--border-thin);
    color: var(--color-text-low);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 20px;
    min-width: 25px;
    text-align: center;
}

.lab-tab.active .lab-tab-count {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-white);
    border-color: rgba(255, 255, 255, 0.2);
}

/* 4. Paneles de Galería */
.lab-gallery-panel {
    display: none;
    padding: 0 8% 100px 8%;
    max-width: 1400px;
    margin: 0 auto;
    animation: fadeInPanel 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.lab-gallery-panel.active {
    display: block;
}

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

.lab-panel-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.lab-panel-header .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.8rem;
}

.lab-panel-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.lab-panel-header p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* 5. Zona de Carga Visual (Upload Hint) */
.lab-upload-hint {
    background: rgba(0, 44, 105, 0.01);
    border: 1px dashed rgba(0, 44, 105, 0.12);
    border-radius: 16px;
    padding: 2.2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--color-text-muted);
    font-size: 0.88rem;
    margin-bottom: 3rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lab-upload-hint svg {
    color: var(--color-text-low);
    transition: var(--transition-smooth);
}

.lab-upload-hint:hover {
    background: rgba(0, 44, 105, 0.03);
    border-color: var(--color-teal);
    color: var(--color-text-white);
    transform: translateY(-2px);
}

.lab-upload-hint:hover svg {
    color: var(--color-teal);
    transform: translateY(-4px);
}

/* Variaciones del upload hint según el panel activo */
#panel-bitacora .lab-upload-hint:hover {
    border-color: var(--color-purple);
}
#panel-bitacora .lab-upload-hint:hover svg {
    color: var(--color-purple);
}

#panel-anatomia .lab-upload-hint:hover {
    border-color: var(--color-amber);
}
#panel-anatomia .lab-upload-hint:hover svg {
    color: var(--color-amber);
}

/* 6. Grilla de Galería (Masonry-Like con CSS Grid) */
.lab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    grid-auto-rows: 260px;
    gap: 2rem;
}

/* 7. Tarjetas de la Galería (lab-card) */
.lab-card {
    background: var(--bg-card);
    border: var(--border-thin);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 44, 105, 0.04);
    cursor: pointer;
    height: 100%;
}

.lab-card--wide {
    grid-column: span 2;
}

.lab-card--tall {
    grid-row: span 2;
}

/* Envoltura de imagen */
.lab-card-img-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #090914;
    min-height: 180px;
}

.lab-card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Overlay animado */
.lab-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(6, 6, 15, 0.9) 0%, rgba(6, 6, 15, 0.4) 60%, rgba(6, 6, 15, 0.1) 100%);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    transition: var(--transition-smooth);
    z-index: 2;
}

.lab-card-overlay-inner {
    transform: translateY(20px);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    width: 100%;
}

.lab-card-overlay svg {
    color: var(--color-teal);
    margin-bottom: 0.8rem;
    filter: drop-shadow(0 2px 8px rgba(27,221,184,0.4));
}

#panel-bitacora .lab-card-overlay svg {
    color: var(--color-purple);
    filter: drop-shadow(0 2px 8px rgba(167,139,250,0.4));
}

#panel-anatomia .lab-card-overlay svg {
    color: var(--color-amber);
    filter: drop-shadow(0 2px 8px rgba(251,191,36,0.4));
}

.lab-card-overlay-inner p {
    font-family: var(--font-title);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-white);
    margin-bottom: 4px;
}

.lab-card-overlay-inner span {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Hover de la Tarjeta */
.lab-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 44, 105, 0.18);
    box-shadow: 0 15px 40px rgba(0, 44, 105, 0.08);
}

.lab-card:hover .lab-card-img-wrap img {
    transform: scale(1.05);
}

.lab-card:hover .lab-card-overlay {
    opacity: 1;
}

.lab-card:hover .lab-card-overlay-inner {
    transform: translateY(0);
}

/* Contenido inferior (Label) */
.lab-card-label {
    padding: 1.2rem 1.5rem;
    background: #ffffff;
    border-top: var(--border-thin);
    z-index: 1;
}

.lab-card-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 3px 10px;
    border-radius: 30px;
    margin-bottom: 0.5rem;
    color: var(--color-teal);
    background: rgba(27, 79, 191, 0.06);
    border: 1px solid rgba(27, 79, 191, 0.12);
}

#panel-bitacora .lab-card-tag {
    color: var(--color-purple);
    background: rgba(0, 44, 105, 0.06);
    border-color: rgba(0, 44, 105, 0.12);
}

#panel-anatomia .lab-card-tag {
    color: var(--color-amber);
    background: rgba(217, 119, 6, 0.06);
    border-color: rgba(217, 119, 6, 0.12);
}

.lab-card-label p {
    font-size: 0.88rem;
    color: var(--color-text-white);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 8. Tarjetas de Marcador de Posición (Placeholders) */
.lab-placeholder {
    background: #ffffff;
    border: 1px dashed rgba(0, 44, 105, 0.12);
    cursor: default;
    box-shadow: none;
    min-height: 260px;
}

.lab-placeholder-inner {
    padding: 2.5rem 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: var(--transition-smooth);
}

.lab-ph-icon {
    font-size: 2.4rem;
    margin-bottom: 1.2rem;
    filter: grayscale(0.2) opacity(0.5);
    transition: var(--transition-smooth);
}

.lab-placeholder-inner p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.4;
    margin-bottom: 1rem;
    font-weight: 400;
}

.lab-placeholder-inner span {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-low);
    background: rgba(0, 44, 105, 0.03);
    border: var(--border-thin);
    padding: 3px 12px;
    border-radius: 100px;
    transition: var(--transition-smooth);
}

/* Hover de los Placeholders */
.lab-placeholder:hover {
    border-color: var(--color-teal);
    background: rgba(27, 79, 191, 0.02);
    transform: none;
    box-shadow: none;
}

.lab-placeholder:hover .lab-ph-icon {
    transform: translateY(-4px) scale(1.08);
    filter: grayscale(0) opacity(0.85);
}

.lab-placeholder:hover .lab-placeholder-inner span {
    color: var(--color-teal);
    border-color: rgba(27, 79, 191, 0.25);
    background: rgba(27, 79, 191, 0.05);
}

/* Colores personalizados de hover para placeholders */
.lab-placeholder[data-placeholder="bitacora"]:hover {
    border-color: var(--color-purple);
    background: rgba(0, 44, 105, 0.02);
}
.lab-placeholder[data-placeholder="bitacora"]:hover .lab-placeholder-inner span {
    color: var(--color-purple);
    border-color: rgba(0, 44, 105, 0.25);
    background: rgba(0, 44, 105, 0.05);
}

.lab-placeholder[data-placeholder="anatomia"]:hover {
    border-color: var(--color-amber);
    background: rgba(217, 119, 6, 0.02);
}
.lab-placeholder[data-placeholder="anatomia"]:hover .lab-placeholder-inner span {
    color: var(--color-amber);
    border-color: rgba(217, 119, 6, 0.25);
    background: rgba(217, 119, 6, 0.05);
}

/* 9. Lightbox (Visor) */
.lab-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-lightbox:not([hidden]) {
    display: flex;
    pointer-events: auto;
    opacity: 1;
}

.lab-lightbox-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(6, 6, 15, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 1999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-lightbox-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* Envoltura y controles */
.lb-img-wrap {
    position: relative;
    max-width: 85vw;
    max-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
    border: var(--border-thin);
    background: #05050b;
}

.lb-img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    display: block;
    opacity: 0;
    transform: scale(0.97);
    transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lb-img.loaded {
    opacity: 1;
    transform: scale(1);
}

/* Spinner */
.lb-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lb-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.05);
    border-top: 3px solid var(--color-teal);
    border-radius: 50%;
    animation: lbSpin 0.8s linear infinite;
}

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

/* Botones de navegación */
.lb-close, .lb-prev, .lb-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-white);
    width: 54px;
    height: 54px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: var(--transition-smooth);
    z-index: 10;
}

.lb-close:hover, .lb-prev:hover, .lb-next:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.lb-close {
    top: 30px;
    right: 40px;
}

.lb-prev {
    left: 40px;
}

.lb-next {
    right: 40px;
}

.lb-caption {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(6, 6, 15, 0.7);
    border: var(--border-thin);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    font-size: 0.95rem;
    color: var(--color-text-white);
    z-index: 10;
    max-width: 600px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Badge dot helpers */
.badge-dot.bg-teal { background-color: var(--color-teal); }
.badge-dot.bg-purple { background-color: var(--color-purple); }
.badge-dot.bg-amber { background-color: var(--color-amber); }

/* Responsive adaptivo */
@media (max-width: 1024px) {
    .lab-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        grid-auto-rows: 240px;
        gap: 1.5rem;
    }
    .lab-card--wide {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .lab-hero h1 {
        font-size: 2.8rem;
    }
    .lab-tabs-bar {
        padding: 0.8rem 4%;
    }
    .lab-tabs-inner {
        gap: 0.5rem;
    }
    .lab-tab {
        padding: 0.8rem 0.5rem;
        font-size: 0.78rem;
        flex-direction: column;
        gap: 4px;
        border-radius: 10px;
    }
    .lab-tab-icon {
        font-size: 1.1rem;
    }
    .lab-tab-count {
        position: absolute;
        top: 4px;
        right: 4px;
        font-size: 0.65rem;
        padding: 1px 4px;
        min-width: 16px;
    }
    .lab-panel-header h2 {
        font-size: 2rem;
    }
    .lab-gallery-panel {
        padding: 0 4% 60px 4%;
    }
    .lb-close {
        top: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
    .lb-prev {
        left: 15px;
        width: 44px;
        height: 44px;
    }
    .lb-next {
        right: 15px;
        width: 44px;
        height: 44px;
    }
}