:root {
    /* Colors */
    --primary-bg: #ffffff;
    --dark-bg: #000000;
    --text-dark: #000000;
    --text-light: #ffffff;
    --accent: #00e5ff;
    --gray-light: #f5f5f5;
    --gray-mid: #333333;

    /* Grid & Spacing */
    --gap: 20px;
    --container-padding: 8%;
    --font-heading: 'Archivo', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body { 
    font-family: var(--font-body); 
    background: var(--primary-bg); 
    color: var(--text-dark); 
    line-height: 1.6;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

/* --- ANIMATIONS --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    animation: fadeIn 1s ease forwards;
}

/* --- NAVIGATION --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px var(--container-padding);
    background: var(--primary-bg);
}

.logo-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
}

.logo {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
    color: var(--text-dark);
    transition: filter 0.4s ease, opacity 0.3s ease;
}

.logo:hover {
    filter: blur(4px);
    opacity: 0.7;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.5;
}

/* --- HERO & SLIDESHOW --- */
.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    padding: 0 var(--container-padding);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
    background-color: #000; /* Fondo negro por si las imágenes tardan en cargar */
}

.slideshow-container {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.slideshow-container::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.6));
    z-index: 5;
}

.slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    padding: 0 var(--container-padding);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    /* Eliminamos fixed para evitar conflictos con transform y overflow */
    transition: transform 1.5s cubic-bezier(0.19, 1, 0.22, 1), opacity 1s ease;
    opacity: 0;
    transform: translateX(-100%);
}

.slide.active {
    opacity: 1;
    transform: translateX(0);
    z-index: 2;
}

.slide.exit {
    opacity: 0;
    transform: translateX(100%);
}

/* Fallback para una sola imagen o sin animación */
.no-animation .slide {
    opacity: 1 !important;
    transform: translateX(0) !important;
    transition: none !important;
}

.hero-content {
    position: relative;
    z-index: 10;
    animation: fadeIn 1.2s ease-out;
}

.hero-tagline {
    font-size: 0.8rem;
    letter-spacing: 5px;
    font-weight: 200;
    color: var(--accent);
    display: block;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 10vw, 6rem);
    text-transform: uppercase;
    font-weight: 300;
    line-height: 0.95;
    margin-bottom: 30px;
    letter-spacing: -2px;
}

.hero-details {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 50px;
    letter-spacing: 1px;
}

.hero-details span { color: var(--accent); font-weight: 700; }

.hero-action { 
    display: flex; 
    align-items: center;
    gap: 30px; 
}

.btn-main {
    padding: 22px 50px;
    background: var(--text-light);
    color: var(--text-dark);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.9rem;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    display: inline-flex;
    align-items: center;
    gap: 15px;
}

.btn-main:hover {
    background: var(--accent);
    transform: translateX(10px);
}

.btn-caption {
    font-size: 0.7rem;
    opacity: 0.6;
    letter-spacing: 1px;
    max-width: 200px;
    line-height: 1.4;
}

.fixed-action {
    position: absolute;
    bottom: 12vh;
    left: var(--container-padding);
    z-index: 50; /* Por encima de todo el carrusel y el overlay */
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Ajuste para móviles del botón fijo */
@media (max-width: 768px) {
    .fixed-action {
        bottom: 8vh;
        width: calc(100% - (var(--container-padding) * 2));
    }
    .fixed-action .btn-main {
        width: 100%;
        justify-content: center;
    }
}

/* --- GRID SECTION --- */
.grid-section { 
    background: var(--dark-bg); 
    padding: 120px var(--container-padding); 
    color: white; 
}

.section-title { 
    margin-bottom: 60px; 
    font-size: clamp(2rem, 5vw, 3.5rem); 
    font-family: var(--font-heading);
    font-weight: 200;
    letter-spacing: -1px;
}

.mosaic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: 350px;
    gap: var(--gap);
}

.card {
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
    filter: grayscale(100%);
    transition: 0.7s cubic-bezier(0.19, 1, 0.22, 1);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    text-decoration: none;
}

.card:hover {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.card span {
    position: relative;
    z-index: 2;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    color: #ffffff;
    letter-spacing: -0.5px;
}

.card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
    opacity: 0.6;
    transition: opacity 0.3s;
}

.card:hover::after { opacity: 0.9; }

.tall { grid-row: span 2; }
.wide { grid-column: span 2; }

/* Mentor Section */
.mentor-section { padding: 100px var(--container-padding); }
.mentor-container {      display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: top; }
.mentor-img img { width: 50%; filter: grayscale(100%); }
.famous-gallery { display: flex; gap: 10px; margin-top: 30px; }
.famous-gallery img { width: 120px; height: 120px; object-fit: cover; filter: grayscale(100%); }

/* --- FORM SECTION --- */
.form-section { 
    padding: 100px var(--container-padding); 
    background: var(--dark-bg); 
    color: white; 
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.form-container { max-width: 800px; margin: 0 auto; width: 100%; }

.form-header { margin-bottom: 60px; }
.form-intro { font-size: 1.2rem; opacity: 0.6; margin-top: 20px; }

.contact-form { display: grid; gap: 30px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.form-group { display: flex; flex-direction: column; gap: 10px; }

.form-group label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    opacity: 0.5;
}

.contact-form input, 
.contact-form select {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding: 15px 0;
    color: white;
    font-family: var(--font-body);
    font-size: 1.1rem;
    outline: none;
    transition: all 0.3s;
}

.contact-form input:focus, 
.contact-form select:focus {
    border-bottom-color: var(--accent);
}

.contact-select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right center;
}

.contact-select option { background: var(--dark-bg); color: white; }

.form-action { margin-top: 40px; }
.btn-main.full-width { width: 100%; justify-content: center; }
.form-disclaimer { font-size: 0.8rem; opacity: 0.4; margin-top: 20px; text-align: center; }

/* --- FOOTER --- */
.main-footer {
    background: var(--dark-bg);
    padding: 80px var(--container-padding);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4);
}

.footer-container { display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: var(--font-heading); color: white; font-weight: 900; }
.footer-social { display: flex; gap: 30px; }
.footer-social a { color: white; text-decoration: none; font-size: 0.7rem; font-weight: 700; letter-spacing: 1px; }

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
    .mentor-container { grid-template-columns: 1fr; gap: 50px; }
    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-action { flex-direction: column; align-items: flex-start; gap: 15px; }
    .wide { grid-column: span 1; }
    .footer-container { flex-direction: column; gap: 40px; text-align: center; }
}