/* ===========================
   Escuela IT Online - Professional IT Training Platform
   Modern, Responsive Design
   =========================== */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2E86C1;
    --secondary-color: #1A5490;
    --accent-color: #3498DB;
    --dark-color: #1C2833;
    --light-color: #ECF0F1;
    --text-color: #2C3E50;
    --bg-color: #FFFFFF;
    --gray-color: #7F8C8D;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --danger-color: #E74C3C;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo img {
    width: 50px;
    height: 50px;
}

nav ul {
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav a {
    font-weight: 500;
    color: var(--text-color);
    padding: 0.5rem 0;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
    pointer-events: none;
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a:hover {
    color: var(--primary-color);
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    pointer-events: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(46, 134, 193, 0.9), rgba(26, 84, 144, 0.9));
    z-index: 1;
    pointer-events: none;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    font-size: 3rem;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 134, 193, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
}

.btn-secondary:hover {
    background: transparent;
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-color);
    max-width: 700px;
    margin: 0 auto;
}

.section-light {
    background: var(--light-color);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

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

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

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

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--gray-color);
    flex: 1;
}

.card-footer {
    padding: 0 1.5rem 1.5rem;
}

/* Service Cards */
.service-card {
    text-align: center;
    padding: 2rem;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 10px;
    z-index: -1;
    pointer-events: none;
}

.service-card:hover::before {
    opacity: 0.1;
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

/* Features Section */
.features {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.feature-item {
    flex: 1;
    min-width: 280px;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    position: relative;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    border-radius: 10px 0 0 10px;
    pointer-events: none;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Team Section */
.team-member {
    text-align: center;
}

.team-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.team-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.team-role {
    color: var(--gray-color);
    margin-bottom: 0.5rem;
}

.team-social {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-link {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item h3 {
    font-size: 3rem;
    color: white;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Testimonials */
.testimonial {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    position: relative;
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    pointer-events: none;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin: 0;
}

/* Contact Form */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--light-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: var(--danger-color);
}

.form-group.error .form-error {
    display: block;
}

/* Map */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    margin-top: 2rem;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.blog-card {
    position: relative;
}

.blog-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-bottom: 0.5rem;
}

.blog-excerpt {
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more:hover {
    gap: 1rem;
}

/* Article */
.article-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--gray-color);
    margin-bottom: 2rem;
}

.article-image {
    width: 100%;
    max-width: 1000px;
    height: 500px;
    object-fit: cover;
    border-radius: 10px;
    margin: 0 auto 3rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-content h2,
.article-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    list-style: disc;
}

.related-articles {
    margin-top: 4rem;
    padding-top: 4rem;
    border-top: 2px solid var(--light-color);
}

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-section ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-color);
    color: white;
    padding: 1.5rem;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-text {
    flex: 1;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

/* Responsive Design */
@media (max-width: 968px) {
    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .contact-section {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    nav ul {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        gap: 0;
    }

    nav ul.active {
        left: 0;
    }

    nav li {
        width: 100%;
        border-bottom: 1px solid var(--light-color);
    }

    nav a {
        display: block;
        padding: 1rem 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section {
        padding: 60px 0;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }

    .cookie-buttons .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .stat-item h3 {
        font-size: 2rem;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.bg-primary {
    background: var(--primary-color);
}

.bg-light {
    background: var(--light-color);
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.py-1 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.py-2 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}