/* ========================================
   CETRIX - Corporate Website Styles
   Mobile-First, Responsive Design
   Compatible with IONOS Shared Linux Hosting
   ======================================== */

/* ========================================
   1. CSS CUSTOM PROPERTIES (Variables)
   ======================================== */
:root {
    /* Colores principales */
    --color-primary:        #1e3a8a;
    --color-primary-dark:   #1e2d6b;
    --color-primary-light:  #2563eb;
    --color-secondary:      #0ea5e9;
    --color-accent:         #f59e0b;
    --color-accent-dark:    #d97706;

    /* Colores neutros */
    --color-white:          #ffffff;
    --color-gray-50:        #f8fafc;
    --color-gray-100:       #f1f5f9;
    --color-gray-200:       #e2e8f0;
    --color-gray-300:       #cbd5e1;
    --color-gray-400:       #94a3b8;
    --color-gray-500:       #64748b;
    --color-gray-600:       #475569;
    --color-gray-700:       #334155;
    --color-gray-800:       #1e293b;
    --color-gray-900:       #0f172a;

    /* Colores semánticos */
    --color-success:        #10b981;
    --color-error:          #ef4444;
    --color-warning:        #f59e0b;
    --color-info:           #3b82f6;

    /* Tipografía */
    --font-primary:   'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-heading:   'Inter', 'Segoe UI', system-ui, sans-serif;

    --text-xs:    0.75rem;
    --text-sm:    0.875rem;
    --text-base:  1rem;
    --text-lg:    1.125rem;
    --text-xl:    1.25rem;
    --text-2xl:   1.5rem;
    --text-3xl:   1.875rem;
    --text-4xl:   2.25rem;
    --text-5xl:   3rem;
    --text-6xl:   3.75rem;

    --font-normal:   400;
    --font-medium:   500;
    --font-semibold: 600;
    --font-bold:     700;
    --font-extrabold:800;

    --leading-tight:  1.25;
    --leading-snug:   1.375;
    --leading-normal: 1.5;
    --leading-relaxed:1.625;

    /* Espaciado */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Bordes */
    --radius-sm:   0.25rem;
    --radius-md:   0.5rem;
    --radius-lg:   0.75rem;
    --radius-xl:   1rem;
    --radius-2xl:  1.5rem;
    --radius-full: 9999px;

    /* Sombras */
    --shadow-sm:  0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md:  0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg:  0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl:  0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

    /* Transiciones */
    --transition-fast:   150ms ease;
    --transition-base:   250ms ease;
    --transition-slow:   350ms ease;
    --transition-slower: 500ms ease;

    /* Layout */
    --container-max:  1200px;
    --container-pad:  var(--space-6);
    --navbar-height:  72px;

    /* Z-index */
    --z-below:    -1;
    --z-base:      0;
    --z-raised:    10;
    --z-dropdown:  100;
    --z-sticky:    200;
    --z-overlay:   300;
    --z-modal:     400;
    --z-toast:     500;
}

/* ========================================
   2. RESET & BASE
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: var(--navbar-height);
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--color-gray-900);
}

/* Focus visible accesible */
:focus-visible {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Selección de texto */
::selection {
    background-color: var(--color-primary-light);
    color: var(--color-white);
}

/* ========================================
   3. UTILIDADES GLOBALES
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.section-padding {
    padding-block: var(--space-20);
}

.section-padding-lg {
    padding-block: var(--space-32);
}

/* Etiqueta de sección */
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section-tag::before {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary-light);
    border-radius: var(--radius-full);
}

/* Encabezado de sección */
.section-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

.section-title span {
    color: var(--color-primary-light);
}

.section-subtitle {
    font-size: clamp(var(--text-base), 2vw, var(--text-lg));
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
    max-width: 600px;
}

.section-header {
    margin-bottom: var(--space-12);
}

.section-header--center {
    text-align: center;
}

.section-header--center .section-tag {
    justify-content: center;
}

.section-header--center .section-subtitle {
    margin-inline: auto;
}

/* Animaciones */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slower),
                transform var(--transition-slower);
}

.animate-on-scroll.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.animate-delay-1 { transition-delay: 100ms; }
.animate-delay-2 { transition-delay: 200ms; }
.animate-delay-3 { transition-delay: 300ms; }
.animate-delay-4 { transition-delay: 400ms; }
.animate-delay-5 { transition-delay: 500ms; }

/* Accesibilidad */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

/* ========================================
   4. BOTONES
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    line-height: 1;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgb(255 255 255 / 0);
    transition: background var(--transition-fast);
}

.btn:hover::after {
    background: rgb(255 255 255 / 0.08);
}

.btn:active {
    transform: translateY(1px);
}

/* Botón primario */
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: var(--color-white);
    border-color: transparent;
    box-shadow: 0 4px 14px rgb(37 99 235 / 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    box-shadow: 0 6px 20px rgb(37 99 235 / 0.5);
    transform: translateY(-2px);
    color: var(--color-white);
}

/* Botón secundario / outline */
.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: rgb(255 255 255 / 0.6);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn-outline--dark {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

/* Botón accent */
.btn-accent {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-gray-900);
    border-color: transparent;
    box-shadow: 0 4px 14px rgb(245 158 11 / 0.4);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgb(245 158 11 / 0.5);
}

/* Tamaños */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
    border-radius: var(--radius-xl);
}

/* Estado loading */
.btn--loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn--loading::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: var(--space-2);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   5. NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    height: var(--navbar-height);
    background: rgb(255 255 255 / 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.navbar--scrolled {
    background: rgb(255 255 255 / 0.98);
    border-bottom-color: var(--color-gray-200);
    box-shadow: var(--shadow-md);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--space-8);
}

/* Logo */
.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
}

.navbar-logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.navbar-logo-text {
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.navbar-logo-text span {
    color: var(--color-secondary);
}

/* Menú de navegación */
.nav-menu {
    display: none;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
}

.nav-link {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background: var(--color-gray-100);
}

.nav-cta {
    display: none;
    flex-shrink: 0;
}

/* Botón hamburguesa */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.hamburger:hover {
    background: var(--color-gray-100);
}

.hamburger span {
    display: block;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger.menu-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.menu-open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.menu-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   6. HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(
        135deg,
        var(--color-primary)       0%,
        var(--color-primary-dark)  40%,
        #0c1a4e                    100%
    );
    overflow: hidden;
    padding-top: var(--navbar-height);
}

/* Imagen de fondo hero */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.08;
    z-index: 0;
    mix-blend-mode: luminosity;
}

/* Patrón decorativo */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgb(37 99 235 / 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgb(14 165 233 / 0.2) 0%, transparent 40%),
        radial-gradient(circle at 60% 80%, rgb(30 58 138 / 0.4) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
    padding-block: var(--space-16);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgb(255 255 255 / 0.1);
    border: 1px solid rgb(255 255 255 / 0.2);
    border-radius: var(--radius-full);
    color: var(--color-secondary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    backdrop-filter: blur(8px);
    margin-bottom: var(--space-6);
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(var(--text-3xl), 6vw, var(--text-6xl));
    font-weight: var(--font-extrabold);
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.hero-title-highlight {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: clamp(var(--text-base), 2vw, var(--text-xl));
    color: rgb(255 255 255 / 0.8);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
    max-width: 560px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

/* Stats del hero */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    padding-top: var(--space-8);
    border-top: 1px solid rgb(255 255 255 / 0.15);
}

.hero-stat-number {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-extrabold);
    color: var(--color-white);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.hero-stat-label {
    font-size: var(--text-xs);
    color: rgb(255 255 255 / 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Imagen / Visual lado derecho */
.hero-visual {
    display: none;
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero-image-wrapper img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.hero-image-badge {
    position: absolute;
    bottom: var(--space-6);
    left: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.hero-image-badge-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.hero-image-badge-text strong {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.hero-image-badge-text span {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
}

/* ========================================
   7. CLIENTES / LOGOS BAND
   ======================================== */
.clients-band {
    background: var(--color-gray-50);
    border-block: 1px solid var(--color-gray-200);
    padding-block: var(--space-10);
}

.clients-label {
    text-align: center;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-8);
}

.clients-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-8) var(--space-12);
}

.client-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%) opacity(0.5);
    transition: filter var(--transition-base);
}

.client-logo:hover {
    filter: grayscale(0%) opacity(1);
}

/* ========================================
   8. SERVICIOS
   ======================================== */
.services {
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.service-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: default;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-light), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-gray-100), var(--color-gray-50));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--color-primary-light);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: var(--color-white);
    transform: scale(1.1);
}

.service-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.service-description {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.service-feature {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.service-feature::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    background: var(--color-primary-light);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ========================================
   9. NOSOTROS / ABOUT
   ======================================== */
.about {
    background: var(--color-gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.about-image-wrapper img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.about-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        transparent 60%,
        rgb(30 58 138 / 0.6) 100%
    );
}

.about-badge {
    position: absolute;
    bottom: var(--space-6);
    right: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.about-badge-number {
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    color: var(--color-primary);
    line-height: 1;
    display: block;
}

.about-badge-text {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.about-value {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.about-value-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.about-value-title {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.about-value-text {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
}

/* ========================================
   10. PROCESO
   ======================================== */
.process {
    background: var(--color-white);
}

.process-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    position: relative;
}

.process-step {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

.process-step-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.process-step-number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgb(37 99 235 / 0.4);
}

.process-step-line {
    width: 2px;
    flex: 1;
    min-height: 40px;
    background: linear-gradient(to bottom, var(--color-primary-light), var(--color-gray-200));
    margin-top: var(--space-2);
}

.process-step:last-child .process-step-line {
    display: none;
}

.process-step-content {
    padding-bottom: var(--space-8);
    flex: 1;
}

.process-step-title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.process-step-text {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
}

/* ========================================
   11. CASOS DE ÉXITO / TESTIMONIOS
   ======================================== */
.cases {
    background: var(--color-gray-50);
}

.cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

.case-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.case-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.case-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.case-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-gray-100);
    flex-shrink: 0;
}

.case-avatar-placeholder {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.case-author-name {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.case-author-role {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.case-stars {
    display: flex;
    gap: 2px;
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.case-quote {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    font-style: italic;
    margin-bottom: var(--space-6);
}

.case-metric {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-success);
    border: 1px solid var(--color-gray-200);
}

/* ========================================
   12. CTA BANNER
   ======================================== */
.cta-banner {
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-primary-dark) 50%,
        #0c1a4e 100%
    );
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('../images/cta-bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.05;
    z-index: 0;
}

.cta-banner::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgb(14 165 233 / 0.2) 0%, transparent 70%);
    z-index: 0;
}

.cta-banner-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin-inline: auto;
}

.cta-banner-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-extrabold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

.cta-banner-text {
    font-size: clamp(var(--text-base), 2vw, var(--text-lg));
    color: rgb(255 255 255 / 0.8);
    margin-bottom: var(--space-8);
    line-height: var(--leading-relaxed);
}

.cta-banner-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
}

/* ========================================
   13. CONTACTO
   ======================================== */
.contact {
    background: var(--color-gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-12);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.contact-info-title {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.contact-info-text {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
}

.contact-info-text a {
    color: var(--color-primary-light);
    transition: color var(--transition-fast);
}

.contact-info-text a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Formulario */
.contact-form-wrapper {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-100);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
}

.form-label .required {
    color: var(--color-error);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    color: var(--color-gray-900);
    background: var(--color-gray-50);
    border: 1.5px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:hover {
    border-color: var(--color-gray-300);
}

.form-control:focus {
    background: var(--color-white);
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-control.field-error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgb(239 68 68 / 0.1);
}

.form-control.field-valid {
    border-color: var(--color-success);
}

textarea.form-control {
    resize: vertical;
    min-height: 140px;
}

.field-error-msg {
    font-size: var(--text-xs);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.form-general-error {
    padding: var(--space-4);
    background: rgb(239 68 68 / 0.1);
    border: 1px solid rgb(239 68 68 / 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-error);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
}

.form-privacy {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
    text-align: center;
    line-height: var(--leading-relaxed);
}

.form-privacy a {
    color: var(--color-primary-light);
    text-decoration: underline;
}

/* ========================================
   14. FOOTER
   ======================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding-block: var(--space-16);
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    text-decoration: none;
}

.footer-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-logo-text {
    font-size: var(--text-xl);
    font-weight: var(--font-extrabold);
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-secondary);
    margin-bottom: var(--space-3);
}

.footer-description {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 38px;
    height: 38px;
    background: var(--color-gray-800);
    border: 1px solid var(--color-gray-700);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: var(--color-white);
    transform: translateY(-2px);
}

.footer-column {}

.footer-heading {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-link:hover {
    color: var(--color-white);
}

.footer-link:hover::before {
    content: '→';
    font-size: var(--text-xs);
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    line-height: var(--leading-relaxed);
}

.footer-contact-item svg {
    flex-shrink: 0;
    color: var(--color-secondary);
    margin-top: 2px;
}

/* Footer bottom */
.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-block: var(--space-6);
}

.footer-bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    text-align: center;
}

.footer-copy,
.footer-legal {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* ========================================
   15. COMPONENTES VARIOS
   ======================================== */

/* Scroll Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    width: 44px;
    height: 44px;
    background: var(--color-primary-light);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: rgb(0 0 0 / 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    backdrop-filter: blur(4px);
}

.modal-overlay[hidden] {
    display: none;
}

.modal {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-8);
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: var(--shadow-2xl);
    animation: modal-in var(--transition-base) ease;
}

@keyframes modal-in {
    from { opacity: 0; transform: scale(0.9) translateY(-16px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
}

.modal-icon--success {
    background: rgb(16 185 129 / 0.1);
    color: var(--color-success);
}

.modal-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-extrabold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.modal-message {
    font-size: var(--text-base);
    color: var(--color-gray-500);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

/* ========================================
   16. RESPONSIVE — TABLET (768px+)
   ======================================== */
@media (min-width: 768px) {

    /* Navbar */
    .nav-menu {
        display: flex;
    }

    .nav-cta {
        display: flex;
    }

    .hamburger {
        display: none;
    }

    /* Hero */
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }

    .hero-visual {
        display: block;
    }

    /* Grids 2 col */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .form-grid-2 {
        grid-template-columns: 1fr 1fr;
    }

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

    .footer-bottom-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ========================================
   17. RESPONSIVE — DESKTOP (1024px+)
   ======================================== */
@media (min-width: 1024px) {

    /* Navbar */
    .nav-link {
        font-size: var(--text-base);
        padding: var(--space-2) var(--space-4);
    }

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

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

    /* Contacto */
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }

    /* Proceso */
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-8);
    }
}

/* ========================================
   18. RESPONSIVE — WIDE (1280px+)
   ======================================== */
@media (min-width: 1280px) {

    :root {
        --container-pad: var(--space-8);
    }

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

    .hero-title {
        letter-spacing: -0.03em;
    }
}

/* ========================================
   19. PRINT STYLES
   ======================================== */
@media print {
    .navbar,
    .scroll-top-btn,
    .modal-overlay,
    .hero-actions,
    .cta-banner {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }
}

/* ========================================
   20. ACCESIBILIDAD — MOTION REDUCE
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}

/* === Ajustes visuales para ilustraciones grandes (teléfono / reloj) === */

/* 1) Reducir tamaño de la ilustración de la PRIMERA columna del bloque de contacto */
.contact-grid>div:first-child img,
.contact-grid>div:first-child svg {
    max-width: 260px;
    height: auto;
    display: block;
    margin-inline: auto;
}

/* 2) En escritorio, centrar verticalmente la columna izquierda (icono + textos + botón) */
@media (min-width: 1024px) {
    .contact-grid>div:first-child {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-6);
    }
}

/* 3) En móviles muy pequeños, ocultar la ilustración para priorizar el formulario */
@media (max-width: 480px) {

    .contact-grid>div:first-child img,
    .contact-grid>div:first-child svg {
        display: none;
    }
}