@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

:root {
    --font-titulo: 'Montserrat', sans-serif;
    --font-texto: 'Roboto', sans-serif;

    /* Light Mode Colors */
    --color-principal: #2E86C1;
    --color-secundario: #58D68D;
    --color-texto-oscuro: #333333;
    --color-texto-claro: #000000;
    --color-fondo: #f9f9f9;
    --color-blanco: #ffffff;
    --color-nav-bg: rgba(255, 255, 255, 0.95);
    --shadow-card: 0 5px 20px rgba(0, 0, 0, 0.07);
}

body.dark-mode {
    /* Dark Mode Colors */
    --color-principal: #5DADE2;
    --color-secundario: #48C9B0;
    --color-texto-oscuro: #ecf0f1;
    --color-texto-claro: #ffffff;
    --color-fondo: #1a1a1a;
    --color-blanco: #2c3e50;
    --color-nav-bg: rgba(26, 26, 26, 0.95);
    --shadow-card: 0 5px 20px rgba(0, 0, 0, 0.3);
}

/* --- Global --- */
html {
    scroll-behavior: smooth;
}

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

body {
    font-family: var(--font-texto);
    background-color: var(--color-fondo);
    color: var(--color-texto-oscuro);
    transition: background-color 0.3s, color 0.3s;
}

/* --- Loader --- */
.loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-fondo);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--color-principal);
    border-top: 5px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Chat Widget --- */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

#chat-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-principal);
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    transition: transform 0.3s;
}

#chat-btn:hover {
    transform: scale(1.1);
}

/* --- Navbar --- */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background-color: var(--color-nav-bg);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo img {
    height: 60px;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.5rem;
}

.nav-links li a {
    text-decoration: none;
    color: var(--color-texto-oscuro);
    font-family: var(--font-titulo);
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-links li a.active,
.nav-links li a:hover {
    color: var(--color-principal);
}

.nav-actions-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: 10px;
}

.nav-actions-container button,
.nav-actions-container .btn-download {
    background: none;
    border: 1px solid var(--color-texto-oscuro);
    color: var(--color-texto-oscuro);
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-family: var(--font-titulo);
    text-decoration: none;
    font-size: 13.33px;
}

.btn-download {
    background-color: var(--color-principal) !important;
    color: white !important;
    border: none !important;
    font-weight: bold;
    display: inline-block;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-texto-oscuro);
}

/* --- General Sections --- */
section {
    padding: 80px 5%;
    scroll-margin-top: 80px;
}

h2 {
    font-family: var(--font-titulo);
    font-size: 32px;
    color: var(--color-texto-oscuro);
    margin-bottom: 40px;
    text-align: center;
}

/* --- Inicio --- */
.container-inicio {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.texto-inicio {
    flex: 1;
}

.texto-inicio h1 {
    font-family: var(--font-titulo);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-texto-oscuro);
    margin-bottom: 20px;
}

.texto-inicio p {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.imagen-inicio {
    flex: 1;
}

.imagen-inicio img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.early-access-form {
    display: flex;
    gap: 10px;
}

.early-access-form input {
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
    flex: 1;
}

.early-access-form button {
    padding: 10px 20px;
    background-color: var(--color-principal);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-success {
    background-color: #27AE60 !important;
}

.btn-loading {
    opacity: 0.7;
    cursor: wait !important;
}

/* --- Como Funciona --- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
    margin-bottom: 40px;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--color-principal);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 15px;
}

.video-placeholder {
    background-color: #ddd;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 20px;
    color: #666;
}

/* --- Beneficios --- */
.lista-beneficios {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.beneficio1,
.beneficio2,
.beneficio3 {
    flex: 1;
    min-width: 280px;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    text-align: center;
    background-color: var(--color-blanco);
}

.beneficio1,
.beneficio3 {
    background-color: var(--color-secundario);
    color: #333;
}

.beneficio1 h3,
.beneficio3 h3,
.beneficio1 p,
.beneficio3 p {
    color: #333;
}

.lista-beneficios img {
    height: 60px;
    margin-bottom: 20px;
}

/* --- Funcionalidades --- */
.lista-funcionalidades {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.lista-funcionalidades > div {
    text-align: center;
    padding: 20px;
}

.lista-funcionalidades img {
    max-width: 100%;
    height: auto;
    margin-bottom: 15px;
}

/* --- Galería --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
    justify-items: center;
}

.gallery-item {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 350px;
}

.app-screenshot {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.app-screenshot:hover {
    transform: translateY(-5px);
}

/* --- Mobile Experience --- */
.mobile-experience {
    background-color: var(--color-blanco);
}

.container-mobile {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    max-width: 1200px;
    margin: 0 auto;
}

.mobile-text {
    flex: 1;
}

.mobile-text h2 {
    text-align: left;
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.divider {
    width: 100%;
    height: 3px;
    background-color: #000;
    margin-bottom: 20px;
}

body.dark-mode .divider {
    background-color: #fff;
}

.mobile-text p {
    font-size: 24px;
    margin-bottom: 30px;
    line-height: 1.4;
}

.store-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: flex-start;
}

.store-btn {
    display: flex;
    align-items: center;
    background-color: #000000;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 10px;
    text-decoration: none;
    transition: transform 0.2s, background-color 0.3s;
    min-width: 200px;
    border: 1px solid transparent;
}

body.dark-mode .store-btn {
    border: 1px solid #ffffff;
}

.store-btn:hover {
    transform: translateY(-3px);
    background-color: #1a1a1a;
}

.btn-icon {
    width: 35px;
    height: 35px;
    margin-right: 15px;
    object-fit: contain;
}

.btn-content {
    display: flex;
    flex-direction: column;
}

.btn-small {
    font-size: 10px;
    text-transform: uppercase;
    opacity: 0.9;
}

.btn-large {
    font-size: 18px;
    font-weight: bold;
    font-family: var(--font-texto);
}

.mobile-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.mobile-image img {
    width: 100%;
    max-width: 500px;
    transform: rotate(5deg);
    transition: transform 0.3s;
}

.mobile-image img:hover {
    transform: rotate(0deg);
}

/* --- Equipo --- */
.team-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    color: var(--color-texto-oscuro);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: inline-block;
    border-bottom: 2px solid var(--color-principal);
    padding-bottom: 5px;
}

.team-header h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.team-header p {
    font-size: 16px;
    color: #666;
}

body.dark-mode .team-header p {
    color: #ccc;
}

.team-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.team-card {
    background-color: var(--color-blanco);
    border: 1px solid #ddd;
    border-radius: 15px;
    padding: 15px;
    width: 270px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-image {
    width: 100%;
    height: 250px;
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.card-info {
    text-align: left;
    padding: 0 5px;
}

.card-info h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--color-texto-oscuro);
}

.role {
    color: #27AE60;
    font-size: 14px;
    margin-bottom: 15px;
    font-weight: 600;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--color-texto-oscuro);
    transition: color 0.3s;
}

.social-icons a:hover {
    color: var(--color-principal);
}

.social-icons svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --- Avales Section --- */
.avales-section {
    text-align: center;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid #ddd;
}

.avales-section h3 {
    font-family: var(--font-titulo);
    margin-bottom: 30px;
    color: var(--color-texto-oscuro);
}

.avales-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    align-items: center;
}

.aval-img {
    height: 100px;
    width: auto;
    object-fit: contain;
    transition: transform 0.3s;
}

.aval-img:hover {
    transform: scale(1.05);
}

/* --- Team Video Section --- */
.team-video-section {
    background-color: var(--color-fondo);
    padding-top: 40px;
    padding-bottom: 80px;
}

/* --- Comparativa --- */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 auto;
    max-width: 800px;
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    border-bottom: 1px solid #ddd;
    text-align: center;
}

.comparison-table .highlight {
    background-color: var(--color-principal);
    color: white;
}

/* --- Dermatologos --- */
.dermatologos {
    background-color: var(--color-blanco);
    text-align: center;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--color-principal);
    color: var(--color-principal);
    padding: 10px 25px;
    border-radius: 50px;
    font-size: 18px;
    cursor: pointer;
    margin-top: 20px;
    transition: background-color 0.3s, color 0.3s;
}

.btn-secondary:hover {
    background-color: var(--color-principal);
    color: white;
}

/* --- Testimonios --- */
.lista-testimonios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.testimonio1,
.testimonio2,
.testimonio3 {
    background-color: var(--color-blanco);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-card);
}

.doctor-testimonial {
    margin-top: 40px;
    text-align: center;
    font-style: italic;
    color: var(--color-principal);
}

/* --- FAQ --- */
.faq-search {
    width: 100%;
    max-width: 500px;
    padding: 10px;
    display: block;
    margin: 0 auto 30px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

.faq-list details {
    background-color: var(--color-blanco);
    margin-bottom: 10px;
    padding: 15px;
    border-radius: 5px;
    box-shadow: var(--shadow-card);
}

.faq-list summary {
    cursor: pointer;
    font-weight: bold;
}

/* --- Blog --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.blog-grid article {
    background-color: var(--color-blanco);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-card);
}

.newsletter {
    background-color: var(--color-principal);
    padding: 30px;
    border-radius: 10px;
    color: white;
    text-align: center;
}

.newsletter form {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.newsletter input {
    padding: 10px;
    border-radius: 5px;
    border: none;
    width: 60%;
}

.newsletter button {
    padding: 10px 20px;
    background-color: var(--color-secundario);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    color: #333;
    font-weight: bold;
}

/* --- Contacto --- */
.container-contacto {
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-form {
    flex: 1;
    min-width: 300px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

.btn-enviar {
    background-color: var(--color-principal);
    color: white;
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s;
}

/* --- Footer --- */
footer {
    background-color: #333;
    color: white;
    padding: 40px 5%;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.socials a,
.legal a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    margin: 10px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
}

.contact-icon {
    font-size: 18px;
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .top-header {
        padding: 15px 20px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-nav-bg);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-actions-container {
        margin-left: 0;
        margin-top: 20px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .hamburger {
        display: flex;
    }

    .container-inicio {
        flex-direction: column-reverse;
        text-align: center;
    }

    .early-access-form {
        flex-direction: column;
    }

    .lista-beneficios {
        flex-direction: column;
    }

    .container-mobile {
        flex-direction: column;
        text-align: center;
    }

    .mobile-text h2 {
        text-align: center;
        font-size: 32px;
    }

    .store-buttons {
        justify-content: center;
    }

    .team-grid {
        flex-direction: column;
        align-items: center;
    }

    .team-card {
        width: 100%;
        max-width: 350px;
    }

    .container-contacto {
        flex-direction: column;
    }

    .container-contacto img {
        max-width: 100%;
    }

    .avales-grid {
        flex-direction: column;
        gap: 20px;
    }
}