/**
 * ============================================================
 * HEADER.CSS - Navegación, header y hero section
 * ============================================================
 * 
 * Archivo: header.css
 * Descripción: Estilos para la navegación principal, menú móvil
 *              sticky header con glassmorphism y sección hero
 * 
 * Autor: TeknoSoft Development Team
 * Fecha: Febrero 2026
 * 
 * Dependencias: reset.css, variables.css, global.css
 * ============================================================
 */

/* ============================================================
   HEADER / NAVEGACIÓN PRINCIPAL
   ============================================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-fixed);
    padding: var(--spacing-4) 0;
    transition: var(--transition-normal);
}

/* Header transparente (estado inicial en hero) */
.header--transparent {
    background: transparent;
}

/* Header con glassmorphism al hacer scroll */
.header--scrolled {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: var(--glass-border);
    box-shadow: var(--shadow);
    padding: var(--spacing-3) 0;
}

/* Cambio de colores al hacer scroll */
.header--scrolled .nav__link {
    color: var(--color-gray-800);
}

.header--scrolled .nav__link:hover,
.header--scrolled .nav__link--active {
    color: var(--color-primary);
}

.header--scrolled .logo__text {
    color: var(--color-primary);
}

.header--scrolled .hamburger__line {
    background: var(--color-primary);
}

/* Contenedor del header */
.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================================
   LOGO
   ============================================================ */

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    text-decoration: none;
    z-index: var(--z-fixed);
}

.logo__image {
    display: flex;
    align-items: center;
}

.logo__img {
    width: 320px;
    height: 50px;
    object-fit: contain;
    transition: filter var(--duration-normal);
    /* Logo en blanco cuando header está transparente */
    filter: brightness(0) invert(1);
}

/* Logo en su color original cuando hay scroll */
.header--scrolled .logo__img {
    filter: none;
}

.logo__text {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    transition: color var(--duration-normal);
}

.logo__text span {
    color: var(--color-accent);
}

/* ============================================================
   NAVEGACIÓN PRINCIPAL
   ============================================================ */

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    list-style: none;
}

.nav__item {
    position: relative;
}

.nav__link {
    display: inline-block;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    text-decoration: none;
    padding: var(--spacing-2) 0;
    transition: color var(--duration-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--duration-fast);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-accent);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

/* Botón CTA en navegación */
.nav__cta {
    margin-left: var(--spacing-4);
}

/* ============================================================
   MENÚ HAMBURGUESA (MÓVIL)
   ============================================================ */

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: var(--z-fixed);
}

.hamburger__line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: var(--transition-fast);
    transform-origin: center;
}

.hamburger__line:nth-child(1) {
    margin-bottom: 6px;
}

.hamburger__line:nth-child(3) {
    margin-top: 6px;
}

/* Estado activo del hamburguesa */
.hamburger.active .hamburger__line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active .hamburger__line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger__line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================================
   MENÚ MÓVIL (OVERLAY)
   ============================================================ */

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--gradient-primary);
    padding: var(--spacing-20) var(--spacing-6) var(--spacing-6);
    z-index: calc(var(--z-fixed) - 1);
    transition: right var(--duration-normal) var(--ease-out);
    overflow-y: auto;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu__list {
    list-style: none;
    margin-bottom: var(--spacing-8);
}

.mobile-menu__item {
    margin-bottom: var(--spacing-4);
}

.mobile-menu__link {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link--active {
    color: var(--color-accent);
    padding-left: var(--spacing-4);
}

.mobile-menu__cta {
    width: 100%;
    margin-top: var(--spacing-6);
}

/* Overlay para cerrar menú móvil */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 2);
    opacity: 0;
    transition: opacity var(--duration-normal);
}

.mobile-menu-overlay.active {
    opacity: 1;
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-primary);
    padding: var(--spacing-32) 0 var(--spacing-16);
    overflow: hidden;
}

/* Contenedor del hero */
.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
    position: relative;
    z-index: 2;
}

/* Columna de contenido */
.hero__content {
    max-width: 600px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: rgba(125, 211, 232, 0.2);
    color: var(--color-accent);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-6);
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-6);
}

.hero__title span {
    color: var(--color-accent);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-8);
}

/* Botones del hero */
.hero__buttons {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-10);
}

/* Estadísticas del hero */
.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-6);
}

.hero__stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero__stat-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    border-radius: var(--border-radius);
    color: var(--color-primary);
    font-size: var(--font-size-lg);
}

.hero__stat-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

/* Columna de imagen/ilustración */
.hero__image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__illustration {
    width: 100%;
    max-width: 600px;
    height: auto;
    animation: float 6s ease-in-out infinite;
}

/* Placeholder para ilustración */
.hero__illustration-placeholder {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    border-radius: var(--border-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(255,255,255,0.2);
}

.hero__illustration-placeholder span {
    color: rgba(255,255,255,0.5);
    font-size: var(--font-size-sm);
    text-align: center;
    padding: var(--spacing-4);
}

/* ============================================================
   ELEMENTOS DECORATIVOS DEL HERO
   ============================================================ */

.hero__decoration {
    position: absolute;
    z-index: 1;
    pointer-events: none;
}

/* Hoja decorativa 1 */
.hero__leaf-1 {
    top: 15%;
    left: 5%;
    width: 80px;
    height: 80px;
    background: var(--color-accent);
    opacity: 0.2;
    border-radius: 60% 40% 70% 30% / 60% 30% 70% 40%;
    animation: float 8s ease-in-out infinite;
}

/* Hoja decorativa 2 */
.hero__leaf-2 {
    bottom: 20%;
    right: 10%;
    width: 120px;
    height: 120px;
    background: var(--color-accent);
    opacity: 0.15;
    border-radius: 70% 30% 50% 50% / 30% 60% 40% 70%;
    animation: float 10s ease-in-out infinite reverse;
}

/* Círculo decorativo */
.hero__circle {
    top: 30%;
    right: 20%;
    width: 200px;
    height: 200px;
    background: rgba(125, 211, 232, 0.1);
    border-radius: 50%;
    animation: pulse-slow 8s ease-in-out infinite;
}

/* Puntos decorativos */
.hero__dots {
    bottom: 30%;
    left: 15%;
    width: 100px;
    height: 100px;
    background-image: radial-gradient(rgba(255,255,255,0.2) 2px, transparent 2px);
    background-size: 16px 16px;
    animation: float 12s ease-in-out infinite;
}

/* ============================================================
   SCROLL INDICATOR
   ============================================================ */

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
    cursor: pointer;
    z-index: 2;
}

.hero__scroll-icon {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 12px;
    position: relative;
}

.hero__scroll-icon::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 2px;
    animation: scroll-bounce 2s infinite;
}

/* ============================================================
   ANIMACIONES DEL HERO
   ============================================================ */

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse-slow {
    0%, 100% {
        transform: scale(1);
        opacity: 0.1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.15;
    }
}

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(10px);
        opacity: 0.5;
    }
}

/* ============================================================
   FIN DEL ARCHIVO
   ============================================================ */