/* ============================================
   BYTZ AGENCY - DISEÑO FUTURISTA FINAL
   Negro puro, azules oscuros, galaxia animada, efectos shimmer
   ============================================ */

/* ===== CSS VARIABLES ===== */
:root {
    /* Paleta oscura y futurista */
    --color-black-pure: #000000;
    --color-black-secondary: #111111;
    --color-black-tertiary: #0a0a0a;
    --color-white: #FFFFFF;
    --color-blue-darkest: #001166;
    --color-blue-dark: #002288;
    --color-blue-accent: #0044AA;
    --color-blue-hover: #0066DD;
    --color-gray-text: #C0C0C0;
    --color-gray-text-light: #D0D0D0;
    --color-gray-text-dark: #888888;

    /* Espaciado compactado 7% */
    --spacing-xs: 0.8rem;
    --spacing-sm: 1.65rem;
    --spacing-md: 3.25rem;
    --spacing-lg: 4.9rem;
    --spacing-xl: 7.4rem;
    --spacing-xxl: 10.7rem;

    /* Containers amplios */
    --container-max-width: 1600px;
    --container-padding: 3rem;

    /* Tipografía futurista - Space Grotesk */
    --font-family: 'Space Grotesk', 'Orbitron', -apple-system, sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Tamaños de fuente compactados 7% */
    --font-size-base: 1.16rem;
    --font-size-lg: 1.4rem;
    --font-size-xl: 1.86rem;
    --font-size-2xl: 2.4rem;
    --font-size-3xl: 3.7rem;
    --font-size-4xl: 4.8rem;
    --font-size-hero: 5.85rem;

    /* Transiciones */
    --transition-fast: 0.25s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;

    /* Navbar */
    --navbar-height: 90px;
    --navbar-height-mobile: 80px;

    /* Cards compactadas 7% - reducidas 10% adicional */
    --card-min-height: 310px;
    --card-padding: 2.4rem;
}

/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    font-size: var(--font-size-base);
    color: var(--color-white);
    background-color: var(--color-black-pure);
    line-height: 1.8;
    overflow-x: hidden;
}

/* ===== SKIP LINK PARA ACCESIBILIDAD ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-blue-accent);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 10000;
    border-radius: 4px;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--color-white);
    outline-offset: 2px;
}

/* ===== TIPOGRAFÍA ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-hero);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-text);
    font-size: var(--font-size-base);
    line-height: 1.8;
}

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

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

/* ===== CONTAINER ===== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--container-padding);
}

/* ===== NAVBAR - NEGRO PURO ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height-mobile);
    background-color: var(--color-black-pure);
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    font-size: 1.4rem;
    letter-spacing: -0.01em;
}

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

.logo-text {
    display: none;
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
    letter-spacing: 0.02em;
}

@media (max-width: 767px) {
    .logo-text {
        display: inline;
        font-size: 1rem;
        margin-left: 0.5rem;
    }

    .logo-img {
        height: 40px;
    }
}

.navbar-menu {
    display: none;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.navbar-link {
    color: var(--color-white);
    font-size: 1.3rem;
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    transition: var(--transition-medium);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-blue-accent), rgba(255, 255, 255, 0.5), var(--color-blue-hover));
    transition: var(--transition-medium);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.navbar-link:hover {
    color: var(--color-white);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.navbar-link:hover::after {
    width: 100%;
}

.btn-contact-desktop {
    display: none;
    padding: 0.95rem 2.3rem;
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    color: var(--color-white);
    border-radius: 35px;
    font-weight: var(--font-weight-semibold);
    font-size: 1.05rem;
    transition: var(--transition-medium);
    box-shadow: 0 6px 25px rgba(0, 51, 102, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-contact-desktop::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.btn-contact-desktop::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 35px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-contact-desktop:hover::before {
    left: 100%;
}

.btn-contact-desktop:hover::after {
    opacity: 1;
}

.btn-contact-desktop:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 35px rgba(0, 51, 102, 0.6);
}

/* Navbar Toggle (3 puntos) */
.navbar-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
    height: 100%;
    justify-content: center;
    align-items: center;
    width: 60px;
    margin: 0;
}

.navbar-toggle span {
    width: 30px;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: var(--transition-medium);
}

.navbar-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.navbar-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(10px, -10px);
}

/* Menú Mobile */
.navbar-mobile {
    position: fixed;
    top: var(--navbar-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-black-pure);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--spacing-md);
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
    z-index: 999;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.navbar-mobile.active {
    transform: translateX(0);
}

.navbar-mobile-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.navbar-mobile-link {
    color: var(--color-white);
    font-size: 1.3rem;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm);
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.navbar-mobile-link:hover {
    color: var(--color-blue-accent);
    padding-left: var(--spacing-md);
}

/* Tablet (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    .navbar {
        height: var(--navbar-height);
    }

    .navbar-toggle {
        display: none;
    }

    .navbar-menu {
        display: flex;
        gap: var(--spacing-sm);
    }

    .navbar-link {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-xs);
    }

    .logo-text {
        display: inline;
        font-size: 1rem;
    }

    .btn-contact-desktop {
        display: inline-block;
        padding: 0.85rem 2rem;
        font-size: 0.95rem;
    }

    .navbar-mobile {
        display: none;
    }

    .cards-container {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-md);
    }

    .hero-title {
        font-size: 4.5rem;
    }

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

    .container {
        padding: var(--spacing-sm) var(--container-padding);
    }
}

/* Desktop Navbar */
@media (min-width: 1025px) {
    .navbar {
        height: var(--navbar-height);
    }

    .navbar-toggle {
        display: none;
    }

    .navbar-menu {
        display: flex;
    }

    .logo-text {
        display: inline;
    }

    .btn-contact-desktop {
        display: inline-block;
    }

    .navbar-mobile {
        display: none;
    }
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-top: var(--navbar-height-mobile);
    min-height: calc(100vh - var(--navbar-height-mobile));
    padding-top: var(--spacing-md);
}

@media (min-width: 768px) {
    .main-content {
        margin-top: var(--navbar-height);
        min-height: calc(100vh - var(--navbar-height));
        padding-top: var(--spacing-lg);
    }
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 95vh;
    background-color: var(--color-black-pure);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl) var(--container-padding);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

/* Galaxia animada container */
#galaxy-canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 1;
    transition: opacity 1s ease-in-out;
}

/* Fade suave mejorado entre hero y secciones */
.hero {
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--color-black-pure) 0%, rgba(0, 0, 0, 0.95) 40%, rgba(0, 17, 68, 0.3) 70%, transparent 100%);
    z-index: 2;
    pointer-events: none;
}

/* Fade suave entre secciones */
.section {
    position: relative;
    overflow: hidden;
}

.section::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, var(--color-black-pure) 0%, rgba(0, 0, 0, 0.95) 50%, rgba(0, 17, 68, 0.2) 80%, transparent 100%);
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
}

.section:not(:first-child)::before {
    opacity: 1;
}

.section::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--color-black-pure) 0%, rgba(0, 0, 0, 0.95) 50%, rgba(0, 17, 68, 0.2) 80%, transparent 100%);
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
}

.section:not(:last-child)::after {
    opacity: 1;
}

/* Efecto de fondo animado adicional en secciones */
.section {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.section:nth-child(even) {
    background: linear-gradient(135deg, rgba(0, 17, 68, 0.2) 0%, rgba(0, 34, 102, 0.1) 100%);
}

.section:nth-child(odd) {
    background: var(--color-black-pure);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1;
    text-shadow: 0 0 30px rgba(0, 51, 102, 0.5), 0 0 60px rgba(255, 255, 255, 0.1);
    position: relative;
}

.hero-title::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    z-index: -1;
    opacity: 0.5;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    font-weight: var(--font-weight-regular);
}

.hero-cta {
    display: inline-block;
    padding: 1.4rem 3.7rem;
    background: linear-gradient(135deg, var(--color-blue-darkest) 0%, var(--color-blue-dark) 50%, var(--color-blue-accent) 100%);
    color: var(--color-white);
    border-radius: 45px;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    transition: all var(--transition-medium);
    box-shadow: 0 10px 50px rgba(0, 4, 40, 0.6), 0 0 30px rgba(0, 51, 102, 0.4);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 0.5px;
}

.hero-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.hero-cta::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 45px;
    padding: 2px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition-medium);
}

.hero-cta:hover::before {
    left: 100%;
}

.hero-cta:hover::after {
    opacity: 1;
}

.hero-cta:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 0 15px 70px rgba(0, 4, 40, 0.8), 0 0 50px rgba(0, 51, 102, 0.6);
    border-color: rgba(255, 255, 255, 0.3);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 7rem;
    }

    .hero-subtitle {
        font-size: 2.25rem;
    }
}

/* ===== SECTIONS ===== */
.section {
    padding: var(--spacing-lg) var(--container-padding);
    padding-top: calc(var(--spacing-lg) + 2rem);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-gray-text);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

@media (min-width: 768px) {
    .section-title {
        font-size: 4.5rem;
    }

    .section-subtitle {
        font-size: 1.75rem;
    }
}

/* ===== CARDS CON EFECTO SHIMMER ===== */
.cards-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: var(--container-max-width);
    margin: var(--spacing-md) auto;
}

.card {
    background: linear-gradient(135deg, rgba(0, 26, 61, 0.3), rgba(0, 51, 102, 0.2));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--card-padding);
    min-height: var(--card-min-height);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Efecto shimmer/reflejo con toques blancos */
.card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent 25%,
            rgba(255, 255, 255, 0.15) 50%,
            transparent 75%);
    transform: rotate(45deg);
    transition: all 0.8s ease;
    opacity: 0;
}

.card:hover::before {
    left: 100%;
    top: 100%;
    opacity: 1;
}

/* Brillo blanco sutil en cards */
.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card:hover::after {
    opacity: 1;
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--color-blue-accent);
    box-shadow: 0 20px 60px rgba(0, 51, 102, 0.4);
    background: linear-gradient(135deg, rgba(0, 26, 61, 0.5), rgba(0, 51, 102, 0.3));
}

.card-icon {
    font-size: 3rem;
    color: var(--color-blue-accent);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(0, 61, 153, 0.2);
    border-radius: 20px;
    margin: 0 auto var(--spacing-sm);
    transition: var(--transition-medium);
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--color-blue-hover);
    background: rgba(0, 61, 153, 0.3);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.card-text {
    color: var(--color-gray-text);
    line-height: 1.9;
    font-size: var(--font-size-base);
}

@media (min-width: 768px) {
    .cards-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

@media (min-width: 1024px) {
    .cards-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Service Cards */
.service-card {
    background: linear-gradient(135deg, rgba(0, 26, 61, 0.2), rgba(0, 51, 102, 0.15));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: var(--card-padding);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-medium);
    min-height: 320px;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent 25%,
            rgba(255, 255, 255, 0.12) 50%,
            transparent 75%);
    transform: rotate(45deg);
    transition: all 0.8s ease;
    opacity: 0;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card:hover::before {
    left: 100%;
    top: 100%;
    opacity: 1;
}

.service-card:hover::after {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-blue-accent);
    box-shadow: 0 20px 60px rgba(0, 51, 102, 0.4);
}

/* ===== TIMELINE VERTICAL ===== */
.timeline {
    max-width: 1000px;
    margin: var(--spacing-md) auto;
    position: relative;
    padding: var(--spacing-xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, var(--color-blue-dark), var(--color-blue-accent));
    box-shadow: 0 0 20px rgba(68, 68, 170, 0.5);
    z-index: 1;
}

.timeline-item {
    position: relative;
    padding-left: 110px;
    margin-bottom: var(--spacing-xxl);
    z-index: 1;
}

.timeline-icon {
    position: absolute;
    left: 20px;
    top: 5px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(68, 68, 170, 0.2);
    border-radius: 12px;
    color: var(--color-blue-accent);
    font-size: 1.5rem;
    z-index: 3;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--color-blue-accent);
    border: 5px solid var(--color-black-pure);
    box-shadow: 0 0 0 4px var(--color-blue-dark), 0 0 30px rgba(68, 68, 170, 0.6);
    z-index: 4;
}

.timeline-number {
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-blue-accent);
    text-shadow: 0 0 20px rgba(68, 68, 170, 0.8);
    z-index: 2;
}

.timeline-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.timeline-text {
    color: var(--color-gray-text);
    line-height: 1.9;
    font-size: var(--font-size-base);
}

/* ===== BOTÓN VISITAR PROYECTO ===== */
.project-visit-btn {
    display: inline-block;
    padding: 0.9rem 2.5rem;
    background: linear-gradient(135deg, var(--color-blue-darkest), var(--color-blue-accent));
    color: var(--color-white);
    border-radius: 35px;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    transition: var(--transition-medium);
    box-shadow: 0 6px 25px rgba(0, 68, 170, 0.4);
    position: relative;
    overflow: hidden;
    margin-top: var(--spacing-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.project-visit-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 35px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-visit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 35px rgba(0, 68, 170, 0.6);
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-hover));
}

.project-visit-btn:hover::before {
    opacity: 1;
}

.project-visit-btn:disabled {
    background: #e0e0e0;
    color: #888888;
    cursor: not-allowed;
    box-shadow: none;
}

.project-visit-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ===== FAQ ACCORDION - DISEÑO MINIMALISTA ===== */
.faq-accordion {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: var(--spacing-md) 0;
    text-align: left;
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-fast);
    position: relative;
    outline: none;
}

.faq-question:hover {
    color: var(--color-gray-text-light);
}

.faq-question:focus {
    outline: 2px solid var(--color-blue-accent);
    outline-offset: 4px;
    border-radius: 4px;
}

.faq-question[aria-expanded="true"] {
    color: var(--color-white);
}

.faq-question span:first-child {
    flex: 1;
    line-height: 1.5;
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-blue-accent);
    transition: transform var(--transition-medium);
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium) ease-out, padding var(--transition-medium);
    padding: 0 var(--spacing-md);
    color: var(--color-gray-text);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.faq-answer.active {
    max-height: 500px;
    padding: 0 var(--spacing-md) var(--spacing-md);
}

.faq-answer p {
    margin: 0;
    padding-top: var(--spacing-sm);
}

@media (max-width: 767px) {
    .faq-question {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) 0;
    }

    .faq-icon {
        font-size: 1.3rem;
    }

    .faq-answer {
        font-size: 0.95rem;
    }
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
    padding: var(--spacing-sm) var(--container-padding);
    background-color: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-link {
    color: var(--color-gray-text);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.breadcrumb-link:hover {
    color: var(--color-blue-accent);
}

.breadcrumb-current {
    color: var(--color-white);
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
}

.breadcrumb-separator {
    color: var(--color-gray-text-dark);
    margin: 0 0.5rem;
    font-size: 0.9rem;
}

@media (max-width: 767px) {
    .breadcrumbs {
        padding: var(--spacing-xs) var(--container-padding);
    }

    .breadcrumb-link,
    .breadcrumb-current {
        font-size: 0.85rem;
    }
}

@media (min-width: 768px) {
    .timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline-item {
        padding-left: 0;
        padding-right: calc(50% + 60px);
    }

    .timeline-item:nth-child(even) {
        padding-right: 0;
        padding-left: calc(50% + 60px);
    }

    .timeline-item::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline-number {
        left: 50%;
        transform: translateX(-50%);
    }
}

/* ===== TIMELINE HORIZONTAL (Formulario) ===== */
.timeline-horizontal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    position: relative;
    padding: 0 var(--spacing-md);
}

.timeline-horizontal::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    z-index: 1;
}

.timeline-step {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.timeline-step-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    border: 3px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    transition: var(--transition-medium);
    font-size: 1.5rem;
}

.timeline-step.active .timeline-step-circle {
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    border-color: var(--color-blue-accent);
    box-shadow: 0 0 30px rgba(0, 51, 102, 0.8);
    transform: scale(1.15);
}

.timeline-step.completed .timeline-step-circle {
    background-color: var(--color-blue-accent);
    border-color: var(--color-blue-accent);
}

.timeline-step-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    font-weight: var(--font-weight-medium);
}

.timeline-step.active .timeline-step-label {
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

/* ===== FORMULARIOS ===== */
.form-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    font-size: var(--font-size-base);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1rem 1.25rem;
}

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

border: 2px solid rgba(255, 255, 255, 0.15);
border-radius: 12px;
font-family: var(--font-family);
font-size: var(--font-size-base);
transition: var(--transition-fast);
background-color: rgba(0, 26, 61, 0.3);
color: var(--color-white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-blue-accent);
    box-shadow: 0 0 0 4px rgba(0, 51, 102, 0.3), 0 0 30px rgba(0, 51, 102, 0.5);
    background-color: rgba(0, 26, 61, 0.5);
}

.form-textarea {
    resize: vertical;
    min-height: 160px;
}

/* Slider de presupuesto */
.form-slider-container {
    position: relative;
    padding: var(--spacing-md) 0;
}

.form-slider {
    width: 100%;
    height: 12px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.15);
    outline: none;
    -webkit-appearance: none;
}

.form-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 51, 102, 0.6);
    transition: var(--transition-fast);
}

.form-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 30px rgba(0, 51, 102, 0.8);
}

.form-slider::-moz-range-thumb {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 20px rgba(0, 51, 102, 0.6);
    transition: var(--transition-fast);
}

.form-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 30px rgba(0, 51, 102, 0.8);
}

.slider-value {
    text-align: center;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-top: var(--spacing-xs);
}

.slider-value-display {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, rgba(0, 26, 61, 0.5), rgba(0, 51, 102, 0.3));
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 30px rgba(0, 51, 102, 0.4);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
}

.form-checkbox input[type="checkbox"] {
    width: 24px;
    height: 24px;
    margin-top: 4px;
    cursor: pointer;
    accent-color: var(--color-blue-accent);
}

.form-checkbox label {
    font-size: var(--font-size-base);
    color: var(--color-white);
    cursor: pointer;
    line-height: 1.7;
}

/* ===== BOTONES ===== */
.btn {
    display: inline-block;
    padding: 1.15rem 2.8rem;
    border: none;
    border-radius: 35px;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-medium);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn:focus,
.hero-cta:focus,
.btn-contact-desktop:focus,
.btn-whatsapp:focus,
.btn-consultation:focus,
.project-visit-btn:focus {
    outline: 3px solid var(--color-white);
    outline-offset: 3px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    color: var(--color-white);
    box-shadow: 0 6px 30px rgba(0, 51, 102, 0.5), 0 0 20px rgba(255, 255, 255, 0.1);
    position: relative;
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 35px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 51, 102, 0.7);
}

.btn-large {
    padding: 1.75rem 4rem;
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: var(--color-white);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.4);
    border-radius: 35px;
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(37, 211, 102, 0.6);
}

/* ===== FORMULARIO PROGRESIVO FULL-SCREEN ===== */
.contacting-form {
    min-height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--container-padding);
    position: relative;
    background-color: var(--color-black-pure);
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
}

.form-block {
    display: none;
    width: 100%;
    max-width: 1200px;
    background: linear-gradient(135deg, rgba(0, 17, 68, 0.95), rgba(0, 34, 102, 0.95));
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: var(--spacing-xxl);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7), 0 0 40px rgba(255, 255, 255, 0.05);
    animation: fadeIn 0.6s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.15);
    position: relative;
}

.form-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.5;
    pointer-events: none;
}

.form-block.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.form-block-title {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
    text-align: center;
    font-weight: var(--font-weight-bold);
}

.form-block-text {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.form-block .form-label {
    color: var(--color-white);
    font-size: var(--font-size-lg);
}

.form-block .form-input,
.form-block .form-select,
.form-block .form-textarea {
    background-color: rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-size: var(--font-size-base);
    padding: 1.5rem 2rem;
}

.form-block .form-input:focus,
.form-block .form-select:focus,
.form-block .form-textarea:focus {
    border-color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2), 0 0 40px rgba(0, 51, 102, 0.6);
}

.form-error {
    color: #ff6b6b;
    font-size: 1rem;
    margin-top: var(--spacing-xs);
    display: none;
}

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

/* Resumen del formulario (Bloque 3) */
.form-summary {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.summary-item:last-child {
    border-bottom: none;
}

.summary-label {
    font-weight: var(--font-weight-semibold);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
}

.summary-value {
    color: var(--color-white);
    text-align: right;
    font-size: var(--font-size-base);
}

/* ===== PROYECTOS ===== */
.projects-container {
    max-width: 1200px;
    margin: var(--spacing-md) auto;
}

.project-card {
    background: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 24px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.project-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent 30%,
            rgba(0, 68, 170, 0.1) 50%,
            transparent 70%);
    transform: rotate(45deg);
    transition: all 0.8s ease;
    opacity: 0;
}

.project-card:hover::before {
    left: 100%;
    top: 100%;
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 1);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.4), 0 0 30px rgba(0, 68, 170, 0.2);
}

.project-icon {
    font-size: 3rem;
    color: var(--color-blue-accent);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: rgba(0, 68, 170, 0.15);
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
    transition: var(--transition-medium);
}

.project-card:hover .project-icon {
    transform: scale(1.1) rotate(-5deg);
    color: var(--color-blue-hover);
    background: rgba(0, 68, 170, 0.25);
}

.project-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
    color: #1a1a1a;
    font-weight: var(--font-weight-bold);
}

.project-tech {
    color: var(--color-blue-accent);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.project-description {
    color: #333333;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.testimonial {
    padding: var(--spacing-sm);
    background: rgba(0, 68, 170, 0.08);
    border-radius: 16px;
    border-left: 4px solid var(--color-blue-accent);
    margin-top: var(--spacing-sm);
    font-style: italic;
    color: #2a2a2a;
    font-size: 0.95rem;
    line-height: 1.7;
    position: relative;
}

.testimonial .fa-quote-left {
    color: var(--color-blue-accent);
    font-size: 1.2rem;
    margin-right: 0.5rem;
    opacity: 0.7;
}

/* ===== CONTACTO ===== */
.contact-section {
    padding: var(--spacing-xxl) var(--container-padding);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.contact-info {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

.contact-item {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-xl);
}

.contact-link {
    color: var(--color-blue-accent);
    font-weight: var(--font-weight-semibold);
    transition: var(--transition-fast);
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: all var(--transition-medium);
}

.contact-link:hover {
    color: var(--color-blue-hover);
    text-decoration-color: var(--color-blue-hover);
}

.btn-consultation {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1.6rem 3.7rem;
    background: linear-gradient(135deg, var(--color-blue-darkest), var(--color-blue-dark));
    color: var(--color-white);
    border-radius: 35px;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    box-shadow: 0 10px 50px rgba(0, 4, 40, 0.6);
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn-consultation::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn-consultation:hover::before {
    left: 100%;
}

.btn-consultation:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 60px rgba(0, 4, 40, 0.8);
}

.btn-consultation::after {
    content: '→';
    font-size: 2rem;
    transition: var(--transition-fast);
}

.btn-consultation:hover::after {
    transform: translateX(10px);
}

/* Botón consulta personalizada - Responsive mobile */
@media (max-width: 767px) {
    .btn-consultation {
        padding: 1.2rem 2rem;
        font-size: var(--font-size-lg);
        white-space: normal;
        text-align: center;
        max-width: 100%;
        box-sizing: border-box;
    }
}

/* ===== FOOTER - NEGRO PURO (30% más compacto) ===== */
.footer {
    background-color: var(--color-black-pure);
    color: var(--color-white);
    padding: var(--spacing-md) var(--container-padding);
    margin-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    margin-bottom: var(--spacing-md);
}

.footer-title {
    font-size: var(--font-size-lg);
    color: var(--color-white);
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-bold);
}

.footer-tagline {
    color: var(--color-gray-text);
    font-size: 0.95rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.social-link {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.social-link:hover::before {
    left: 100%;
}

.social-link:hover {
    background-color: var(--color-blue-dark);
    transform: translateY(-4px) scale(1.1);
    border-color: var(--color-blue-accent);
    box-shadow: 0 8px 30px rgba(0, 51, 102, 0.5);
}

.footer-copyright {
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-gray-text);
    font-size: 0.9rem;
}

/* ===== ERROR PAGES ===== */
.error-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-black-pure);
    color: var(--color-white);
}

.error-code {
    font-size: 12rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-blue-accent);
    margin-bottom: var(--spacing-md);
    line-height: 1;
    text-shadow: 0 0 50px rgba(0, 51, 102, 0.8);
}

.error-message {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
}

.error-btn {
    padding: 1.4rem 3.7rem;
    background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-accent));
    color: var(--color-white);
    border-radius: 35px;
    font-weight: var(--font-weight-semibold);
    transition: var(--transition-medium);
    font-size: var(--font-size-lg);
    position: relative;
    overflow: hidden;
}

.error-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.error-btn:hover::before {
    left: 100%;
}

.error-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 51, 102, 0.6);
}

@media (max-width: 767px) {
    .error-code {
        font-size: 8rem;
    }

    .error-message {
        font-size: var(--font-size-xl);
    }
}

/* ===== ANIMACIONES SCROLL MEJORADAS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(60px) scale(0.95);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

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

.slide-up {
    opacity: 0;
    transform: translateY(80px);
    transition: opacity 1.2s ease-out, transform 1.2s ease-out;
}

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

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* ===== BOTÓN FLOTANTE WHATSAPP (DERECHA) ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: all var(--transition-medium);
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.15) translateY(-5px);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.7);
}

.whatsapp-float svg {
    width: 40px;
    height: 40px;
    fill: var(--color-white);
}

@keyframes pulse-whatsapp {

    0%,
    100% {
        box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
    }

    50% {
        box-shadow: 0 8px 40px rgba(37, 211, 102, 0.8), 0 0 0 10px rgba(37, 211, 102, 0.1);
    }
}

@media (max-width: 767px) {
    .whatsapp-float {
        width: 60px;
        height: 60px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float svg {
        width: 32px;
        height: 32px;
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-lg: 3.5rem;
        --spacing-xl: 4.5rem;
        --spacing-xxl: 6rem;
        --card-padding: 2rem;
        --font-size-hero: 3.2rem;
        --font-size-3xl: 2.3rem;
        --font-size-4xl: 3.2rem;
    }

    .navbar-container {
        padding: 0 var(--container-padding);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .navbar-logo {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        flex: 1;
    }

    .logo-img {
        height: 38px;
        width: auto;
    }

    .logo-text {
        display: inline !important;
        font-size: 0.95rem;
        white-space: nowrap;
    }

    .navbar-toggle {
        width: 45px;
        padding: 0.5rem;
        flex-shrink: 0;
    }

    .navbar-toggle span {
        width: 25px;
        height: 2.5px;
    }

    .hero-title {
        font-size: 3.2rem;
    }

    .section-title {
        font-size: 2.3rem;
    }

    .section {
        padding: var(--spacing-md) var(--container-padding);
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .hero {
        margin-top: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
        padding: var(--spacing-lg) var(--container-padding);
    }

    .form-block {
        padding: var(--spacing-md);
    }

    .contacting-form {
        padding: var(--spacing-sm);
    }

    .cards-container {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-md) !important;
        margin: var(--spacing-sm) auto;
    }

    .card {
        min-height: auto;
        padding: var(--spacing-md);
    }

    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .navbar-mobile {
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }

    .navbar-mobile-link {
        font-size: 1.1rem;
        padding: var(--spacing-sm);
    }

    .container {
        padding: var(--spacing-xs) var(--container-padding);
    }

    .project-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .timeline-item {
        padding-left: 90px;
    }

    .timeline-icon {
        left: 15px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}


html {
    /* Ocultar scrollbar pero mantener funcionalidad de scroll */
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE y Edge */
}

/* Ocultar scrollbar en navegadores WebKit (Chrome, Safari, Edge) */
html::-webkit-scrollbar {
    display: none;
}