:root {
    --verde: #a4cc36;
    --azul: #2f5a9c;
    --blanco: #ffffff;
    --sian: #2293aa;
    --gris: #f5f5f5;
    --banner-dark-blue: #1A2E40;
    --banner-medium-blue: #2A4F6D;
    --banner-accent-color: #6DD5ED;
    --banner-text-color: #F0F8FF;
    --banner-shadow-color: rgba(109, 213, 237, 0.5);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', sans-serif;
    color: var(--azul);
    line-height: 1.6;
    user-select: none;
}

/* HERO */
.hero-section {
    background-image: url('../img/banners/neuronas2.png');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
}

.banner-container { height: 400px; background-color: transparent; z-index: 1; }

/* HEADER */
header {
    background-color: rgba(255, 255, 255, 0.3);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: none;
    transition: background-color 0.3s ease;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    width: 100%;
    margin: 0;
    padding: 0;
}

.logo { opacity: 1; margin-left: 0; padding-left: 0; }
.logo img { height: 100px; display: block; }

.menu { color: var(--blanco); list-style: none; margin: 0; padding: 0; display: flex; gap: 1.5rem; }

.menu li a {
    position: relative;
    color: var(--blanco);
    text-decoration: none;
    font-weight: bold;
    font-size: 1em;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.menu li a::after {
    content: "";
    position: absolute;
    left: 0; bottom: 0;
    width: 100%; height: 2px;
    background-color: var(--blanco);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.menu li a:hover { color: var(--blanco); }
.menu li a:hover::after { transform: scaleX(1); }

/* SECCIONES */
.contenedor { max-width: 1200px; margin: 0 auto; padding: 0 20px; box-sizing: border-box; }

.introduccion, .servicios { padding: 3rem 2rem; text-align: center; background-color: var(--gris); }
.introduccion h2, .servicios h2 { font-size: 2em; color: var(--azul); margin-bottom: 1rem; }
.introduccion p, .servicios p { color: #444; margin-bottom: 1rem; }

.tarjetas { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center; margin-top: 2rem; }

.tarjeta {
    background-color: var(--azul);
    border: 1px solid #ddd;
    padding: 1.5rem;
    width: 280px;
    border-radius: 8px;
    box-shadow: 0 0 8px rgba(0,0,0,0.05);
}

.tarjeta h3 { color: var(--verde); margin-bottom: 0.5rem; }

/* ============================================================
   BOTÓN WHATSAPP FLOTANTE — CORREGIDO
   ============================================================ */
.whatsapp-container {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 9000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.whatsapp-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #25D366;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    animation: waPulse 2.5s ease-in-out infinite;
    line-height: 0;
    padding: 0;
}

.whatsapp-btn svg {
    display: block;
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    vertical-align: middle;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.65);
    animation: none;
}

@keyframes waPulse {
    0%, 100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45); transform: scale(1); }
    50%       { box-shadow: 0 4px 28px rgba(37, 211, 102, 0.7);  transform: scale(1.06); }
}

.whatsapp-menu {
    display: none;
    background: white;
    border-radius: 12px;
    padding: 14px 16px;
    box-shadow: 0 8px 28px rgba(0,0,0,0.15);
    min-width: 200px;
    animation: menuFadeIn 0.2s ease;
}

@keyframes menuFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.whatsapp-menu p {
    font-size: 0.78rem;
    color: #999;
    margin: 0 0 10px 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.whatsapp-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    background: #f5f5f5;
    color: #1a1a1a;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    transition: background 0.2s ease, color 0.2s ease;
}

.whatsapp-menu a:last-child { margin-bottom: 0; }

.whatsapp-menu a::before {
    content: '';
    width: 9px; height: 9px;
    border-radius: 50%;
    background: #25D366;
    flex-shrink: 0;
}

.whatsapp-menu a:hover { background: #25D366; color: white; }
.whatsapp-menu a:hover::before { background: white; }

/* TIMELINE */
.timeline-container h2, .title-timeline h2 { font-size: 2em; color: var(--azul); text-align: center; margin-bottom: 1rem; }
.timeline-container { padding: 40px 20px; }

.timeline {
    display: flex;
    overflow-x: auto;
    padding: 20px;
    width: 100%;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    gap: 40px;
    scroll-behavior: smooth;
    cursor: grab;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.timeline::-webkit-scrollbar { display: none; }
.timeline:active { cursor: grabbing; }

.timeline-event {
    min-width: 300px;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    opacity: 0;
    transform: translateY(50px);
    transition: transform 0.6s ease, opacity 0.6s ease;
    transition-delay: 0.2s;
}

.timeline-event[data-aos="fade-up"] { opacity: 1; transform: translateY(0); }

.timeline-image {
    width: 100px; height: 100px;
    border-radius: 50%;
    border: 3px solid var(--azul);
    margin-bottom: 10px;
    object-fit: cover;
}

/* FOOTER */
footer { background-color: var(--azul); color: white; text-align: center; padding: 1rem; margin-top: 2rem; }
footer p { color: white; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    nav .menu { gap: 1rem; }
    .banner-container { height: 350px; padding: 0 6%; }
    .banner-content h1 { font-size: 2.8em; }
    .banner-content p { font-size: 1.1em; }
    .btn-primary { padding: 12px 28px; }
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    width: 30px; height: 25px;
    justify-content: space-between;
    z-index: 1001;
}

.menu-toggle span { background: var(--blanco); height: 3px; width: 100%; border-radius: 2px; transition: all 0.3s ease; }

.menu-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    background-color: rgba(0,0,0,0.4);
    display: none;
    z-index: 999;
}

.menu-overlay.active { display: block; }

@media (max-width: 768px) {
    .menu-toggle { display: flex; }

    .menu {
        position: fixed;
        top: 0; right: -100%;
        width: 250px; height: 100vh;
        background-color: var(--azul);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 3rem 2rem;
        gap: 1.5rem;
        transition: right 0.3s ease-in-out;
        z-index: 1000;
    }

    .menu.active { right: 0; }
    .menu li { width: 100%; }
    .menu li a { font-size: 1.2rem; width: 100%; display: block; color: var(--blanco); }

    .menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .menu-toggle.open span:nth-child(2) { opacity: 0; }
    .menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    body.menu-open { overflow: hidden; }
}

@media (max-width: 480px) {
    header { padding: 0.8rem 1rem; }
    .logo img { height: 100px; }
    .menu li a { font-size: 0.9em; }
    .banner-container { height: 250px; }
    .tarjeta { width: 90%; }
    .whatsapp-container { bottom: 18px; right: 18px; }
    .whatsapp-btn { width: 52px; height: 52px; }
    .whatsapp-btn svg { width: 26px; height: 26px; }
}

/* FORMULARIO CONTACTO */
.header_contact { background-color: var(--azul); color: var(--blanco); padding: 1rem 2rem; position: sticky; top: 0; z-index: 1000; transition: background-color 0.3s ease; }

.formulario-contacto { max-width: 800px; margin: 40px auto; padding: 30px; background-color: #f9f9f9; border-radius: 10px; box-shadow: 0 0 20px rgba(0,0,0,0.1); }
.formulario-contacto h1 { text-align: center; color: #2c3e50; margin-bottom: 30px; font-size: 2.2em; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #34495e; }

.form-group input,
.form-group select,
.form-group textarea { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 5px; font-size: 16px; transition: border 0.3s; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: #3498db; outline: none; box-shadow: 0 0 5px rgba(52,152,219,0.5); }

.form-group.full-width { grid-column: span 2; }

.btn-enviar {
    background-color: var(--verde);
    color: white; border: none;
    padding: 14px 28px; font-size: 16px;
    border-radius: 5px; cursor: pointer;
    transition: background-color 0.3s;
    display: block; margin: 30px auto 0;
    width: 200px; text-align: center;
}

.btn-enviar:hover { background: var(--azul); box-shadow: 0 4px 16px rgba(44,62,80,0.15); }
.required-field::after { content: " *"; color: #e74c3c; }
.especialidad-medica { grid-column: span 2; }

@media (max-width: 768px) {
    .form-grid { grid-template-columns: 1fr; }
    .form-group.full-width, .especialidad-medica { grid-column: span 1; }
}

.contact-banner {
    background: linear-gradient(90deg, var(--azul) 60%, var(--verde) 100%);
    margin-top: 70px; color: var(--blanco); text-align: center;
    padding: 3rem 1rem 2rem; margin-bottom: 2rem;
    border-radius: 24px; box-shadow: 0 4px 24px rgba(44,62,80,0.08);
}

.contact-banner h1 { font-size: 2.2em; margin-bottom: 0.5em; font-weight: 700; }
.contact-banner p { font-size: 1.1em; max-width: 600px; margin: 0 auto; color: var(--blanco); }

/* ICONS */
.input-icon { position: relative; }
.input-icon input { padding-left: 2.2em; }
.input-icon span { position: absolute; left: 0.7em; top: 50%; transform: translateY(-50%); color: var(--azul); font-size: 1.1em; pointer-events: none; }
.icon-user::before   { content: "👤"; }
.icon-mail::before   { content: "✉️"; }
.icon-phone::before  { content: "📞"; }
.icon-location::before { content: "📍"; }
.icon-id::before     { content: "🆔"; }
.icon-hospital::before { content: "🏥"; }

/* NOSOTROS */
body.nosotros-page { background-color: var(--gris); }
body.nosotros-page header { background: var(--azul); position: sticky; }

.hero-nosotros {
    background: linear-gradient(rgba(43,63,116,0.9), rgba(43,63,116,0.9)), url('../img/banners/laboratorio.jpg');
    background-size: cover; background-position: center;
    color: var(--blanco); text-align: center;
    padding: 5rem 1rem; margin-bottom: 2rem;
}

.hero-nosotros h1 { font-size: 2.2rem; margin-bottom: 1rem; text-shadow: 0 2px 4px rgba(0,0,0,0.3); }
.hero-nosotros p { font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.mision-vision, .valores, .diferenciales, .equipo { padding: 3rem 0; }
.contenedor-nosotros { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.titulo-seccion { text-align: center; color: var(--azul); margin-bottom: 2rem; font-size: 1.8rem; }

.mv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }
.mv-card { background: var(--blanco); padding: 2rem; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); transition: transform 0.3s ease; }
.mv-card:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.15); }
.mv-icon { font-size: 2.5rem; margin-bottom: 1rem; color: var(--verde); }
.mv-card h2 { color: var(--azul); margin-bottom: 1rem; font-size: 1.3rem; }

.valores-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.valor-card { background: var(--blanco); padding: 1.5rem; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); border-top: 3px solid var(--verde); }
.valor-card h3 { color: var(--verde); margin-bottom: 1rem; font-size: 1.1rem; }

.dif-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.dif-card { background: var(--blanco); padding: 1.5rem; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); border-left: 3px solid var(--verde); }
.dif-card h3 { color: var(--azul); margin-bottom: 0.8rem; }

.equipo-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.miembro { background: var(--blanco); padding: 1.5rem; text-align: center; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); transition: transform 0.3s ease; }
.miembro:hover { transform: translateY(-5px); }
.miembro-img { width: 120px; height: 120px; border-radius: 50%; background-size: cover; background-position: center; margin: 0 auto 1rem; border: 3px solid var(--verde); object-fit: cover; }
.miembro h3 { color: var(--azul); margin-bottom: 0.5rem; font-size: 1.1rem; }
.miembro p { color: var(--azul); opacity: 0.9; font-size: 0.9rem; }
.miembro .bio { font-size: 0.85rem; margin-top: 0.8rem; color: #555; font-style: italic; }

@media (max-width: 768px) {
    .hero-nosotros { padding: 3rem 1rem; }
    .hero-nosotros h1 { font-size: 1.8rem; }
    .mv-grid, .valores-grid, .dif-grid, .equipo-grid { grid-template-columns: 1fr; }
    .mv-card, .valor-card, .dif-card, .miembro { padding: 1.5rem 1rem; }
}

.mv-card:hover, .valor-card:hover, .dif-card:hover, .miembro:hover { box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
p { color: #444; line-height: 1.6; }

.btn-nosotros { background-color: var(--verde); color: var(--blanco); padding: 0.6rem 1.2rem; border-radius: 4px; display: inline-block; margin-top: 1rem; font-weight: 600; transition: background-color 0.3s; }
.btn-nosotros:hover { background-color: var(--azul); }

/* COMPUESTOS */
.compuestos-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2rem; width: 100%; padding: 0.5rem 0; }

.compuesto-card { background: var(--blanco); border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); display: flex; flex-direction: column; width: 100%; height: auto; min-height: 450px; transition: all 0.3s ease; overflow: hidden; }
.compuesto-card:active { transform: scale(0.98); }

.compuesto-contenido { padding: 1.5rem; display: flex; flex-direction: column; height: 100%; flex-grow: 1; }

.compuesto-imagen-container { height: 180px; overflow: hidden; border-top-left-radius: 12px; border-top-right-radius: 12px; }
.compuesto-imagen-container img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform 0.3s ease; }
.compuesto-card:hover .compuesto-imagen-container img { transform: scale(1.05); }

.compuesto-contenido h3 { color: var(--verde); margin: 1rem 0 0.5rem; text-align: center; font-size: 1.4rem; line-height: 1.3; }
.resumen-compuesto { color: var(--azul); margin-bottom: 0.5rem; text-align: center; flex-grow: 1; font-size: 0.95rem; line-height: 1.4; }

.beneficios-lista { margin: 0.5rem 0; padding-left: 1.2rem; flex-grow: 1; }
.beneficios-lista li { margin-bottom: 0.5rem; color: var(--azul); font-size: 0.9rem; line-height: 1.4; }

.btn-container { margin-top: auto; text-align: center; padding-top: 0.5rem; }

.btn-mas-info { background: var(--azul); color: white; border: none; padding: 0.7rem 1.5rem; border-radius: 6px; font-weight: 600; cursor: pointer; transition: all 0.3s; display: inline-block; width: 90%; max-width: 200px; font-size: 0.9rem; }
.btn-mas-info:hover { background: var(--verde); transform: scale(1.05); }

.productos-especializados .contenedor { display: flex; flex-direction: column; align-items: center; text-align: center; max-width: 1200px; margin: 0 auto; padding: 2rem 1rem; }

.productos-especializados h2 { font-size: 2rem; color: var(--azul); margin-bottom: 0.8rem; position: relative; }
.productos-especializados h2::after { content: ''; display: block; width: 80px; height: 3px; background: var(--verde); margin: 0.8rem auto 0; }

.subtitulo-seccion { font-size: 1.1rem; color: var(--azul); margin-bottom: 2.5rem; max-width: 700px; line-height: 1.5; }

@media (max-width: 1024px) { .compuestos-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; } }

@media (max-width: 768px) {
    .productos-especializados { padding: 2rem 1rem; }
    .compuestos-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.2rem; }
    .compuesto-imagen-container { height: 160px; }
    .compuesto-contenido { padding: 1.2rem; }
    .compuesto-contenido h3 { font-size: 1.3rem; margin: 0.8rem 0 0.4rem; }
}

@media (max-width: 576px) {
    .compuestos-grid { grid-template-columns: 1fr; gap: 1rem; padding: 0; }
    .compuesto-card { min-height: auto; border-radius: 10px; margin-bottom: 0.5rem; }
    .compuesto-imagen-container { height: 150px; border-radius: 10px 10px 0 0; }
    .compuesto-contenido { padding: 1rem; }
    .compuesto-contenido h3 { font-size: 1.2rem; }
    .resumen-compuesto { font-size: 0.9rem; margin-bottom: 0.3rem; }
    .beneficios-lista { padding-left: 1rem; }
    .beneficios-lista li { font-size: 0.85rem; margin-bottom: 0.4rem; }
    .btn-mas-info { padding: 0.6rem 1.2rem; font-size: 0.85rem; width: 85%; }
}

@media (max-width: 400px) {
    .compuesto-imagen-container { height: 130px; }
    .compuesto-contenido { padding: 0.8rem; }
    .btn-mas-info { width: 80%; }
}