/* ==========================================================================
   CSS Reset & Base Styles
   ========================================================================== */

/* Box sizing reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Remove default list styles */
ul,
ol {
    list-style: none;
}

/* Remove default link styling */
a {
    text-decoration: none;
    color: inherit;
}

/* Remove default button styling */
button {
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
    color: inherit;
}

/* Improve media defaults */
img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

/* Remove built‑in form typography styles */
input,
textarea,
select,
button {
    font: inherit;
}

/* Avoid text overflow */
p,
h1,
h2,
h3,
h4,
h5,
h6 {
    overflow-wrap: break-word;
}

article h3{
    margin: 0;
}

/* ==========================================================================
   CSS Variables (Design Tokens)
   ========================================================================== */

:root {
    /* Color Palette – Brown Tones */
    --color-brown-light: #D7CCC8;
    --color-brown-medium: #A1887F;
    --color-brown-dark: #8D6E63;

    /* Accent Colors */
    --color-accent-green: #81C784;
    --color-accent-blue: #4FC3F7;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-off-white: #FAFAFA;
    --color-gray-light: #F5F5F5;
    --color-gray-medium: #9E9E9E;
    --color-gray-dark: #424242;
    --color-black: #212121;

    /* Typography */
    --font-primary: 'Open Sans', sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --space-xs: 0.5rem;   /* 8px */
    --space-sm: 1rem;     /* 16px */
    --space-md: 1.5rem;   /* 24px */
    --space-lg: 2rem;     /* 32px */
    --space-xl: 3rem;     /* 48px */
    --space-2xl: 4rem;    /* 64px */

    /* Border Radius */
    --radius-sm: 0.25rem; /* 4px */
    --radius-md: 0.5rem;  /* 8px */
    --radius-lg: 1rem;    /* 16px */

    /* Container Width */
    --container-max-width: 1200px;
    --container-padding: var(--space-md);

    /* Transition */
    --transition-speed: 0.3s;
    --transition-easing: ease-in-out;
}

/* ==========================================================================
   Base Typography
   ========================================================================== */

html {
    font-size: 100%; /* 16px */
    scroll-behavior: smooth;
    width: 100vw;
    max-width: 100vw;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--color-black);
    background-color: var(--color-off-white);
    width: 100vw;
    max-width: 100vw;
    overflow-x: hidden;
}

/* Heading Hierarchy */
h1, h2, h3, h4 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

h1 {
    font-size: 2.5rem; /* 40px */
}

h2 {
    font-size: 2rem; /* 32px */
}

h3 {
    font-size: 1.5rem; /* 24px */
}

h4 {
    font-size: 1.25rem; /* 20px */
}

p {
    margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Skip Link (Accessibility)
   ========================================================================== */

.skip-link {
    position: absolute;
    top: -3rem;
    left: 0;
    background-color: var(--color-brown-dark);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    z-index: 9999;
    transition: top var(--transition-speed) var(--transition-easing);
}

.skip-link:focus {
    top: var(--space-sm);
    outline: 3px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* ==========================================================================
   Site Header & Navigation
   ========================================================================== */

.site-header {
    background-color: var(--color-white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-sm) 0;
}

.logo {
    text-align: center;
    margin-bottom: var(--space-sm)/2;
}

.site-title {
    font-size: 1.75rem;
    color: var(--color-brown-dark);
    margin-bottom: 0;
}

.site-subtitle {
    color: var(--color-gray-medium);
    font-size: 0.875rem;
}

.menu-toggle {
    display: block;
    width: 44px;
    height: 44px;
    position: relative;
    border: 1px solid var(--color-brown-light);
    border-radius: var(--radius-sm);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-brown-dark);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: transform var(--transition-speed) var(--transition-easing);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-brown-dark);
    left: 0;
    transition: transform var(--transition-speed) var(--transition-easing);
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    bottom: -6px;
}

.menu-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}
.menu-toggle[aria-expanded="true"] .hamburger::before {
    transform: translateY(6px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .hamburger::after {
    transform: translateY(-6px) rotate(-45deg);
}

.nav-menu {
    display: none;
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
    width: 100%;
}

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

.nav-menu a {
    display: block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    color: var(--color-gray-dark);
    font-weight: var(--font-weight-medium);
    transition: background-color var(--transition-speed) var(--transition-easing);
}

.nav-menu a:hover,
.nav-menu a:focus {
    background-color: var(--color-brown-light);
}

.nav-menu a.active {
    background-color: var(--color-brown-medium);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    background-color: var(--color-brown-light);
    padding: var(--space-xl) 0;
    color: var(--color-black);
}

.hero-content {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: 2.25rem;
    margin-bottom: var(--space-sm);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-dark);
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.button {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-easing);
    min-height: 44px;
    min-width: 44px;
    border: 2px solid transparent;
}

.button-primary {
    background-color: var(--color-brown-dark);
    color: var(--color-white);
}

.button-primary:hover,
.button-primary:focus {
    background-color: var(--color-brown-medium);
    outline: 3px solid var(--color-accent-blue);
    outline-offset: 2px;
}

.button-secondary {
    background-color: transparent;
    color: var(--color-brown-dark);
    border-color: var(--color-brown-dark);
}

.button-secondary:hover,
.button-secondary:focus {
    background-color: var(--color-brown-dark);
    color: var(--color-white);
}

.hero-image, .about-image {
    display: block;
    height: 300px;
    border-radius: var(--radius-lg);
    margin: 0 auto;
    max-width: 800px;
    overflow: hidden;
    position: relative;
}

.hero-image img, .about-image img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about {
    padding: var(--space-xl) 0;
    background-color: var(--color-white);
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--color-brown-dark);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}


.about-text {
    flex: 1;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services {
    padding: var(--space-xl) 0;
    background-color: var(--color-gray-light);
}

.section-subtitle {
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--color-gray-dark);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.service-card {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform var(--transition-speed) var(--transition-easing);
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.service-title {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-sm);
}

.service-description {
    color: var(--color-gray-dark);
}

/* ==========================================================================
   Modality Section
   ========================================================================== */

.modality {
    padding: var(--space-xl) 0;
    background-color: var(--color-white);
}

.modality-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.modality-card {
    background-color: var(--color-gray-light);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--color-accent-green);
}

.modality-card:last-child {
    border-left-color: var(--color-accent-blue);
}

.modality-title {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Why Choose Me Section
   ========================================================================== */

.why-choose {
    padding: var(--space-xl) 0;
    background-color: var(--color-gray-light);
}

.trust-signals {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.trust-item {
    text-align: center;
    padding: var(--space-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

.trust-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.trust-title {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Timeline (Mi Formación)
   ========================================================================== */

.timeline {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--color-brown-medium);
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    padding-left: var(--space-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(- var(--space-lg) - 6px);
    top: 0;
    width: 12px;
    height: 12px;
    background-color: var(--color-brown-dark);
    border-radius: 50%;
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 3px var(--color-brown-medium);
}

.timeline-year {
    font-weight: var(--font-weight-bold);
    color: var(--color-brown-dark);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.timeline-title {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-xs);
    font-size: 1.125rem;
    margin-bottom: 0;
}
.timeline-content p {
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* ==========================================================================
   Formation Cards
   ========================================================================== */

.formation-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.formation-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-speed) var(--transition-easing);
}

.formation-card:hover {
    transform: translateY(-5px);
}

.formation-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.formation-title {
    color: var(--color-brown-dark);
    font-size: 1.125rem;
    line-height: 1.4;
}


/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
    padding: var(--space-xl) 0;
    background-color: var(--color-white);
}

.steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    counter-reset: step-counter;
}

.step {
    position: relative;
    padding-left: var(--space-2xl);
}

.step::before {
    counter-increment: step-counter;
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 44px;
    height: 44px;
    background-color: var(--color-brown-dark);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
}

.step-title {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
    padding: var(--space-xl) 0;
    background-color: var(--color-gray-light);
}

.contact-wrapper {
    display: flex;
    flex-direction: column;
    padding-inline: 1rem;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.contact-subtitle {
    color: var(--color-brown-dark);
    margin-bottom: var(--space-md);
}

.contact-list {
    margin-bottom: var(--space-lg);
}

.contact-list li {
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
    position: relative;
}

.contact-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent-blue);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.social-button {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.whatsapp {
    background-color: #25D366;
}

.instagram {
    background-color: #E4405F;
}

.email {
    background-color: var(--color-gray-dark);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    border: 1px solid var(--color-brown-light);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: 3px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* Error states */
.form-group.has-error input,
.form-group.has-error textarea {
    border-color: #d32f2f;
    background-color: #ffebee;
}

.error-message {
    display: block;
    margin-top: var(--space-xs);
    color: #d32f2f;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

.success-message {
    padding: var(--space-md);
    background-color: #e8f5e9;
    color: #2e7d32;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
}

.map-container {
    display: block;
    height: 450px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    margin-top: 2rem;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    display: block;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq {
    padding: var(--space-xl) 0;
    background-color: var(--color-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-sm);
    border: 1px solid var(--color-brown-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-md);
    background-color: var(--color-gray-light);
    font-weight: var(--font-weight-bold);
    color: var(--color-brown-dark);
    cursor: pointer;
    list-style: none;
    position: relative;
    padding-right: var(--space-xl);
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.faq-item[open] .faq-question::after {
    content: '−';
}

.faq-answer {
    padding: var(--space-md);
    background-color: var(--color-white);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-brown-dark);
    color: var(--color-white);
    padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.footer-subtitle {
    color: var(--color-brown-light);
}

.footer-heading {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--color-accent-green);
}

.footer-links ul,
.footer-legal ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-links a,
.footer-legal a {
    color: var(--color-brown-light);
    transition: color var(--transition-speed) var(--transition-easing);
}

.footer-links a:hover,
.footer-links a:focus,
.footer-legal a:hover,
.footer-legal a:focus {
    color: var(--color-accent-blue);
}

.footer-contact p {
    margin-bottom: var(--space-xs);
}

.footer-bottom {
    border-top: 1px solid var(--color-brown-medium);
    padding-top: var(--space-lg);
    text-align: center;
}

.copyright {
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--color-brown-light);
    font-style: italic;
}

/* ==========================================================================
   Focus Styles (Accessibility)
   ========================================================================== */

:focus-visible {
    outline: 3px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* ==========================================================================
   Media Queries (Mobile‑First)
   ========================================================================== */

/* Tablet (≥768px) */
@media (min-width: 768px) {

    .container {
        padding-inline: 1rem;
    }

    .header-inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
    }

    .logo {
        margin-bottom: 0;
        text-align: left;
    }

    .menu-toggle {
        display: none;
    }

    .nav-menu {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        width: auto;
        gap: var(--space-sm);
    }

    .services-grid,
    .trust-signals {
        grid-template-columns: repeat(2, 1fr);
    }

    .modality-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-wrapper {
        flex-direction: row;
    }

    .contact-info,
    .contact-form {
        flex: 1;
    }

    .about-content {
    flex-direction: row;
    align-items: start;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-image {
        height: 300px; /* Nueva altura del contenedor para tablet */
    }

    .hero-image img {
        object-position: bottom center; /* muestra la parte superior */
    }
}

/* Desktop (≥1024px) */
@media (min-width: 1024px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-image {
        height: 500px; /* Nueva altura del contenedor para tablet */
    }

    .hero-image img {
        object-position: bottom center; /* muestra la parte superior */
    }

    .about-content {
        flex-direction: row;
        align-items: center;
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .trust-signals {
        grid-template-columns: repeat(3, 1fr);
    }

    .steps {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-lg);
    }

    .step {
        padding-left: 0;
        padding-top: var(--space-2xl);
        text-align: center;
    }

    .step::before {
        top: 0;
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Modal styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal[aria-hidden="false"] {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
}

.modal-content {
    position: relative;
    z-index: 10000;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    max-width: 90%;
    max-height: 90%;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--color-brown-light);
    color: var(--color-black);
    font-size: 1.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
}

.modal-close:hover,
.modal-close:focus {
    background-color: var(--color-brown-medium);
    outline: 3px solid var(--color-accent-blue);
}

/* Botón flotante de WhatsApp */
.whatsapp-float {
    /* Estilos principales en inline JS, aquí añadimos estados de focus */
}

.whatsapp-float:focus {
    outline: 3px solid var(--color-accent-blue);
    outline-offset: 2px;
}

/* Botón «volver arriba» */
.back-to-top {
    /* Los estilos básicos ya están inline, solo añadimos hover/focus */
}

.back-to-top:hover,
.back-to-top:focus {
    background-color: var(--color-brown-dark);
    outline: 3px solid var(--color-accent-blue);
    transform: scale(1.1);
}

/* Large Desktop (≥1280px) */
@media (min-width: 1280px) {
    .container {
        --container-padding: var(--space-xl);
    }

    .hero,
    .about,
    .services,
    .modality,
    .why-choose,
    .how-it-works,
    .contact,
    .faq {
        padding: var(--space-2xl) 0;
    }
}