/* index.css - Versión mejorada con estética elegante */
:root {
    /* Paleta de colores refinada */
    --color-black: #0A0A0A;
    --color-dark: #151921;
    --color-white: #F9F8F4;
    --color-off-white: #F4F2ED;
    
    /* Nueva paleta de acentos (sin dorado) */
    --color-primary: #2C4369; /* Azul profundo */
    --color-primary-light: #3A5583;
    --color-primary-dark: #1A2A45;
    --color-accent: #C75D4F; /* Terracota */
    --color-accent-light: #D67D71;
    --color-accent-dark: #A34A3D;
    
    /* Colores neutrales */
    --color-gray-dark: #222222;
    --color-gray: #444444;
    --color-gray-medium: #666666;
    --color-gray-light: #E5E5E5;
    
    /* Fuentes refinadas */
    --font-primary: 'Raleway', 'Helvetica Neue', Arial, sans-serif;
    --font-secondary: 'Cormorant Garamond', Georgia, serif;
    
    /* Transiciones y curvas Bezier refinadas */
    --transition-slow: all 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-medium: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-fast: all 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    
    /* Sombras refinadas con capas */
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 6px 20px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.08), 0 3px 10px rgba(0, 0, 0, 0.12);
    
    /* Tamaños */
    --header-height: 130px;
    --header-height-scrolled: 110px;
}

/* Reset y base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.8;
    color: var(--color-gray);
    background: var(--color-white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll Progress Bar */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 2000;
    background: transparent;
}

.scroll-progress {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
    transition: width 0.05s ease;
}

/* Preloader */
/* Preloader sorprendente */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.preloader-logo {
    width: 200px;
    filter: invert(100%) drop-shadow(0 0 15px rgba(255, 255, 255, 0.5));
    animation: logo-pulse 2s infinite alternate ease-in-out;
    z-index: 5;
}

@keyframes logo-pulse {
    0% { transform: scale(1); filter: invert(100%) drop-shadow(0 0 8px rgba(255, 255, 255, 0.3)); }
    100% { transform: scale(1.05); filter: invert(100%) drop-shadow(0 0 25px rgba(255, 255, 255, 0.6)); }
}

/* Anillo de carga giratorio */
.loader-ring {
    position: absolute;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    z-index: 4;
}

.loader-ring span {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.loader-ring span:nth-child(1) {
    border: 3px solid transparent;
    border-top: 3px solid var(--color-primary);
    animation: ring-rotate1 3s linear infinite;
}

.loader-ring span:nth-child(2) {
    border: 3px solid transparent;
    border-bottom: 3px solid var(--color-accent);
    animation: ring-rotate2 2s linear infinite;
}

.loader-ring span:nth-child(3) {
    border: 3px solid transparent;
    border-left: 3px solid rgba(255,255,255,0.2);
    border-right: 3px solid rgba(255,255,255,0.2);
    animation: ring-rotate3 2.5s linear infinite;
}

@keyframes ring-rotate1 {
    0% { transform: rotateZ(0deg); }
    100% { transform: rotateZ(360deg); }
}

@keyframes ring-rotate2 {
    0% { transform: rotateZ(0deg); }
    100% { transform: rotateZ(-360deg); }
}

@keyframes ring-rotate3 {
    0% { transform: rotateZ(0deg); }
    100% { transform: rotateZ(720deg); }
}

@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes lineGrow {
    0% { width: 0; }
    100% { width: 120px; }
}

/* Main content */
main {
    transition: var(--transition-medium);
}

main.fade-content {
    animation: fadeIn 0.8s ease-in forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Contenedor */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-black);
    letter-spacing: 0.5px;
}

h1 { 
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 300;
    letter-spacing: 0.015em;
}

h2 { 
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 400;
}

h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
}

p {
    margin-bottom: 1.5rem;
    font-size: clamp(0.95rem, 2vw, 1.05rem);
    line-height: 1.8;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

/* Separadores de título */
.title-separator {
    width: 60px;
    height: 1px;
    background: var(--color-primary);
    margin: 1.5rem 0;
    position: relative;
}

.title-separator::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 25px;
    height: 3px;
    background: var(--color-accent);
}

.title-separator.centered {
    margin: 1.5rem auto;
}

.title-separator.centered::before {
    left: 0;
}

/* Encabezados de sección */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-pretitle {
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--color-primary);
    margin-bottom: 1rem;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 0.5rem;
    position: relative;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: none;
    cursor: pointer;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-light);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn:hover::after {
    width: 300%;
    height: 300%;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white) !important;
}

.btn-secondary {
    background: var(--color-accent);
    color: var(--color-white) !important;
}

.btn-secondary:hover {
    background: var(--color-accent-dark);
    color: var(--color-white) !important;
}

.btn-outline {
    background: transparent;
    color: var(--color-white) !important;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-white);
    color: var(--color-white) !important;
}

/* Header */
.header {
    background: transparent;
    color: var(--color-white);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-medium);
}

.header.scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-light);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
    padding: 0 1rem;
    transition: var(--transition-medium);
}

.header.scrolled .header-container {
    height: var(--header-height-scrolled);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo img {
    height: 72px;
    transition: var(--transition-medium);
    filter: invert(100%);
}

.header.scrolled .logo img {
    height: 72px;
}
/* Navegación */
.main-nav {
    display: flex;
    align-items: center;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
}

.menu-line {
    width: 100%;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}

.menu-toggle.active .menu-line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.menu-toggle.active .menu-line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links li a {
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

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

/* Botón de búsqueda */
.search-btn {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--color-accent);
    transform: scale(1.1);
}

/* Hero */
.hero {
    height: 100vh;
    color: var(--color-white);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translateX(-50%) translateY(-50%) scale(1.05);
    object-fit: cover;
    filter: brightness(0.9) saturate(1.2) contrast(1.1);
    animation: subtle-zoom 20s infinite alternate ease-in-out;
}

@keyframes subtle-zoom {
    0% { transform: translateX(-50%) translateY(-50%) scale(1.05); }
    100% { transform: translateX(-50%) translateY(-50%) scale(1.15); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(20, 20, 20, 0.85) 0%, rgba(30, 30, 40, 0.7) 100%);
}

/* Elementos gráficos adicionales */
.hero-graphic-element {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    filter: blur(60px);
    z-index: 1;
}

.hero-graphic-1 {
    width: 500px;
    height: 500px;
    top: -150px;
    left: -150px;
    animation: float 15s infinite alternate ease-in-out;
}

.hero-graphic-2 {
    width: 600px;
    height: 600px;
    bottom: -200px;
    right: -100px;
    animation: float 20s infinite alternate-reverse ease-in-out;
}

.hero-graphic-3 {
    width: 350px;
    height: 350px;
    top: 10%;
    right: 15%;
    opacity: 0.1;
    animation: float 12s infinite alternate ease-in-out;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary-light));
}

@keyframes float {
    0% { transform: translateY(0) scale(1); opacity: 0.12; }
    50% { transform: translateY(-20px) scale(1.05); opacity: 0.18; }
    100% { transform: translateY(20px) scale(0.95); opacity: 0.15; }
}

.hero-content {
    display: flex;
    align-items: center;
    height: 100%;
    padding-top: 80px;
    position: relative;
    z-index: 2;
}

.hero-text-content {
    max-width: 650px;
    margin-left: 0;
    opacity: 0;
    transform: translateY(30px);
    animation: heroContentFadeIn 1s forwards 0.5s;
    position: relative;
}

/* Añadir líneas decorativas en el hero */
.hero-text-content::before {
    content: '';
    position: absolute;
    top: -30px;
    left: 0;
    width: 2px;
    height: 60px;
    background: var(--color-accent);
    opacity: 0.6;
}

.hero-text-content::after {
    content: '';
    position: absolute;
    bottom: -30px;
    right: 30%;
    width: 80px;
    height: 1px;
    background: var(--color-primary-light);
    opacity: 0.6;
}

@keyframes heroContentFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 300;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    color: var(--color-white) !important;
}

.subtitle {
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 3px;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    text-transform: uppercase;
    padding: 0.5rem 1rem;
    background: rgba(0,0,0,0.2);
    border-left: 2px solid var(--color-accent);
}

.hero-description {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 300;
    max-width: 90%;
    text-shadow: 0 1px 5px rgba(0,0,0,0.1);
}

.hero-buttons {
    display: flex;
    gap: 1.25rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--color-white);
    opacity: 0.6;
    animation: bounce 2s infinite;
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 5;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 40px;
    background: var(--color-white);
    opacity: 0.3;
}

.scroll-indicator:hover {
    opacity: 1;
    color: var(--color-accent);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-15px) translateX(-50%); }
    60% { transform: translateY(-7px) translateX(-50%); }
}

/* About */
.about {
    padding: 8rem 0;
    background: var(--color-white);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 0;
    width: 100%;
    height: 80px;
    background: linear-gradient(to top, rgba(255,255,255,1), transparent);
    z-index: 5;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    margin-bottom: 5rem;
}

.about-text h3 {
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 1px;
    background: var(--color-primary);
}

.about-quote {
    margin: 3rem 0 1rem;
    padding-left: 2rem;
    border-left: 1px solid var(--color-primary);
    font-family: var(--font-secondary);
    font-style: italic;
}

.about-quote p {
    font-size: 1.25rem;
    color: var(--color-gray-dark);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.quote-author {
    font-family: var(--font-primary);
    font-style: normal;
    font-size: 0.9rem;
    color: var(--color-gray-medium);
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border-radius: 3px;
}

.image-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1;
    pointer-events: none;
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.7s ease;
}

.about-image:hover .image-frame img {
    transform: scale(1.05);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.stat-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--color-off-white);
    border-radius: 3px;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-primary);
    transition: height 0.5s ease;
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.stat-item:hover::before {
    height: 100%;
}

.stat-number {
    font-family: var(--font-secondary);
    font-size: 3.5rem;
    font-weight: 300;
    color: var(--color-primary);
    margin-bottom: 1rem;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Servicios */
.services {
    padding: 8rem 0;
    background: var(--color-off-white);
    position: relative;
}

.services-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4.5rem;
    font-size: 1.1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-bottom: 5rem;
}

.service-card {
    background: var(--color-white);
    box-shadow: var(--shadow-light);
    border-radius: 3px;
    overflow: hidden;
    transition: var(--transition-medium);
    position: relative;
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-medium);
}

.service-image {
    height: 240px;
    background: center/cover;
    position: relative;
    transition: transform 0.7s ease;
}

.service-card:hover .service-image {
    transform: scale(1.05);
}

.service-overlay {
    padding: 2rem;
    border-top: 3px solid var(--color-primary);
    background: var(--color-white);
    transition: var(--transition-medium);
}

.service-tag {
    font-size: 0.8rem;
    color: var(--color-gray-medium);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.service-title {
    font-size: 1.5rem;
    color: var(--color-black);
    margin-bottom: 0.75rem;
    transition: var(--transition-fast);
}

.service-card:hover .service-title {
    color: var(--color-primary);
}

.service-line {
    width: 30px;
    height: 1px;
    background: var(--color-primary);
    margin: 1rem 0 1.25rem;
    transition: width 0.3s ease;
}

.service-card:hover .service-line {
    width: 50px;
}

.service-description {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    color: var(--color-gray);
    line-height: 1.7;
}

.service-link {
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
}

.service-link i {
    margin-left: 0.5rem;
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.service-card:hover .service-link {
    color: var(--color-accent);
}

.service-card:hover .service-link i {
    transform: translateX(5px);
}

.services-cta {
    text-align: center;
    margin-top: 4rem;
}

/* Footer */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 1.5rem;
    position: relative;
    overflow: hidden;
}

.footer-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.1) 1px, transparent 1px),
                     linear-gradient(to bottom, rgba(0, 0, 0, 0.1) 1px, transparent 1px);
    background-size: 35px 35px;
    opacity: 0.05;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
    position: relative;
}

.footer-column h4 {
    color: var(--color-white);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-family: var(--font-secondary);
    font-weight: 400;
}

.footer-separator {
    width: 30px;
    height: 1px;
    background: var(--color-primary);
    margin-bottom: 1.5rem;
}

.footer-logo img {
    width: 150px;
    margin-bottom: 1.5rem;
    filter: invert(100%);
}

.footer-about {
    font-size: 0.95rem;
    opacity: 0.8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition-fast);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    display: block;
    margin-bottom: 0.75rem;
    transition: var(--transition-fast);
    position: relative;
    padding-left: 0;
}

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

.newsletter-form {
    display: flex;
    margin-top: 1.5rem;
}

.newsletter-input {
    flex: 1;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2px 0 0 2px;
    color: var(--color-white);
    font-family: var(--font-primary);
}

.newsletter-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.2);
}

.newsletter-btn {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0 15px;
    border-radius: 0 2px 2px 0;
    cursor: pointer;
    transition: var(--transition-fast);
}

.newsletter-btn:hover {
    background: var(--color-primary-light);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-bottom: 0;
}

/* Volver arriba */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
    box-shadow: var(--shadow-medium);
    z-index: 50;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-accent);
    transform: translateY(-5px);
}

/* Animaciones para elementos */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Efectos de partículas adicionales */
.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    pointer-events: none;
}

.particle:nth-child(1) {
    width: 6px;
    height: 6px;
    top: 20%;
    left: 10%;
    animation: particle-float 25s infinite linear;
}

.particle:nth-child(2) {
    width: 8px;
    height: 8px;
    top: 40%;
    left: 25%;
    animation: particle-float 30s infinite linear;
}

.particle:nth-child(3) {
    width: 4px;
    height: 4px;
    top: 60%;
    left: 40%;
    animation: particle-float 20s infinite linear;
}

.particle:nth-child(4) {
    width: 7px;
    height: 7px;
    top: 30%;
    left: 65%;
    animation: particle-float 35s infinite linear;
}

.particle:nth-child(5) {
    width: 5px;
    height: 5px;
    top: 70%;
    left: 80%;
    animation: particle-float 22s infinite linear;
}

@keyframes particle-float {
    0% {
        transform: translate(0, 0);
        opacity: 0;
    }
    25% {
        opacity: 0.5;
    }
    50% {
        transform: translate(-50px, 100px);
        opacity: 0.2;
    }
    75% {
        opacity: 0.8;
    }
    100% {
        transform: translate(-100px, 200px);
        opacity: 0;
    }
}

/* Efectos de desplazamiento y deslizamiento */
.slide-in-left {
    transform: translateX(-50px);
    opacity: 0;
    transition: transform 0.8s ease, opacity 0.8s ease;
}

.slide-in-left.visible {
    transform: translateX(0);
    opacity: 1;
}

.slide-in-right {
    transform: translateX(50px);
    opacity: 0;
    transition: transform 0.8s ease, opacity 0.8s ease;
}

.slide-in-right.visible {
    transform: translateX(0);
    opacity: 1;
}

.slide-in-bottom {
    transform: translateY(50px);
    opacity: 0;
    transition: transform 0.8s ease, opacity 0.8s ease;
}

.slide-in-bottom.visible {
    transform: translateY(0);
    opacity: 1;
}

/* Efectos de hover para imágenes */
.hover-zoom {
    overflow: hidden;
}

.hover-zoom img {
    transition: transform 0.5s ease;
}

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

/* Sección de contacto flotante */
.floating-contact-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-medium);
    z-index: 99;
    transition: var(--transition-medium);
}

.floating-contact-button:hover {
    background: var(--color-accent);
    transform: scale(1.1);
}

.floating-contact-button i {
    font-size: 1.5rem;
}

/* Media Queries */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 3rem;
    }
    
    .footer-column:first-child {
        grid-column: span 3;
    }
}

@media (max-width: 992px) {
    .header-container {
        padding: 0 1rem;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        flex-direction: column;
        background: var(--color-dark);
        width: 80%;
        height: 100vh;
        padding: 7rem 2rem 2rem;
        transition: right 0.4s ease;
        z-index: 999;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .nav-links.active {
        right: 0;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
    }

    .nav-links li a {
        font-size: 1rem;
        padding: 0.75rem 0;
        display: block;
    }

    body.menu-open {
        overflow: hidden;
    }

    .about-content,
    .stats-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image {
        order: -1;
    }

    .hero-content {
        margin: 0 auto;
        text-align: center;
    }
    
    .hero-text-content {
        margin: 0 auto;
    }

    .hero-buttons {
        justify-content: center;
    }
    
    .title-separator {
        margin: 1.5rem auto;
    }
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-column:first-child {
        grid-column: span 1;
    }

    .hero-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }
    
    .hero-description {
        max-width: 100%;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .stat-item {
        padding: 2rem 1rem;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .hero-text-content::before,
    .hero-text-content::after {
        display: none;
    }
    
    .subtitle {
        display: block;
    }
}

/* ===============================================
   PRELOADER ELEGANTE CON LOGO CENTRADO EN CÍRCULO
   =============================================== */

.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, #16213e 50%, #0f0f0f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 1;
    visibility: visible;
    overflow: hidden;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* Efecto de ondas sutiles en el fondo */
.preloader::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(44, 67, 105, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulseWave 4s ease-in-out infinite;
}

.preloader::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(199, 93, 79, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulseWave 6s ease-in-out infinite reverse;
}

@keyframes pulseWave {
    0%, 100% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.6;
    }
}

.preloader-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    z-index: 10;
    width: 250px;
    height: 250px;
}

/* Contenedor del círculo giratorio */
.loader-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    transform: translate(-50%, -50%);
    z-index: 5;
}

.loader-ring span {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
}

/* Círculo principal giratorio */
.loader-ring span:nth-child(1) {
    border-top: 2px solid rgba(44, 67, 105, 0.8);
    border-right: 1px solid rgba(44, 67, 105, 0.3);
    animation: rotate360 2s linear infinite;
    filter: drop-shadow(0 0 8px rgba(44, 67, 105, 0.6));
}

.loader-ring span:nth-child(2) {
    border-bottom: 2px solid rgba(199, 93, 79, 0.8);
    border-left: 1px solid rgba(199, 93, 79, 0.3);
    animation: rotateReverse 1.5s linear infinite;
    filter: drop-shadow(0 0 8px rgba(199, 93, 79, 0.6));
}

.loader-ring span:nth-child(3) {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: rotate360 3s linear infinite reverse;
}

@keyframes rotate360 {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* Logo perfectamente centrado */
.preloader-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 140px;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 10;
    filter: invert(1) brightness(1.1) contrast(1.05);
    animation: elegantBlink 2.5s ease-in-out infinite;
}

/* Efecto de parpadeo sofisticado del logo */
@keyframes elegantBlink {
    0% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(0.95);
        filter: invert(1) brightness(0.9) contrast(1) drop-shadow(0 0 5px rgba(255, 255, 255, 0.2));
    }
    25% {
        opacity: 0.7;
        transform: translate(-50%, -50%) scale(0.98);
        filter: invert(1) brightness(1.05) contrast(1.02) drop-shadow(0 0 15px rgba(255, 255, 255, 0.4));
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
        filter: invert(1) brightness(1.2) contrast(1.1) drop-shadow(0 0 25px rgba(255, 255, 255, 0.6));
    }
    75% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(0.99);
        filter: invert(1) brightness(1.1) contrast(1.05) drop-shadow(0 0 18px rgba(255, 255, 255, 0.5));
    }
    100% {
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(0.95);
        filter: invert(1) brightness(0.9) contrast(1) drop-shadow(0 0 5px rgba(255, 255, 255, 0.2));
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .preloader-content {
        width: 200px;
        height: 200px;
    }
    
    .loader-ring {
        width: 160px;
        height: 160px;
    }
    
    .preloader-logo {
        width: 110px;
    }
}

@media (max-width: 480px) {
    .preloader-content {
        width: 160px;
        height: 160px;
    }
    
    .loader-ring {
        width: 130px;
        height: 130px;
    }
    
    .preloader-logo {
        width: 90px;
    }
}

/* Asegurar que el contenido principal esté oculto */
body.preloader-active {
    overflow: hidden;
}

body.preloader-active main {
    visibility: hidden;
    opacity: 0;
}