/* ============================================
   Valunet — Material 3 Expressive–inspired
   Sitio estático
   ============================================ */

:root {
    /* —— Paleta Valunet — M3-style color roles —— */
    /* Colores de marca: #0b3c5d, #328cc1, #f57c00, #e6e6e6, #1c1c1c */
    /* Naranja (#f57c00) es el color principal de la marca */

    --md-sys-color-primary: #f57c00;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: rgba(245, 124, 0, 0.25);
    --md-sys-color-on-primary-container: #ffb366;

    --md-sys-color-secondary: #328cc1;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: rgba(50, 140, 193, 0.2);
    --md-sys-color-on-secondary-container: #a8d4f0;

    --md-sys-color-tertiary: #0b3c5d;
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-tertiary-container: rgba(11, 60, 93, 0.3);
    --md-sys-color-on-tertiary-container: #b3d4e8;

    /* Fondos oscuros */
    --md-sys-color-surface-dark: #1c1c1c;
    --md-sys-color-surface-dark-dim: #141414;
    --md-sys-color-surface-dark-bright: #252525;
    --md-sys-color-surface-dark-container-lowest: #1f1f1f;
    --md-sys-color-surface-dark-container-low: #252525;
    --md-sys-color-surface-dark-container: #2a2a2a;
    --md-sys-color-surface-dark-container-high: #323232;
    --md-sys-color-surface-dark-container-highest: #3d3d3d;

    /* Fondos claros */
    --md-sys-color-surface-light: #e6e6e6;
    --md-sys-color-surface-light-dim: #d9d9d9;
    --md-sys-color-surface-light-bright: #f0f0f0;
    --md-sys-color-surface-light-container-lowest: #ffffff;
    --md-sys-color-surface-light-container-low: #f5f5f5;
    --md-sys-color-surface-light-container: #f0f0f0;
    --md-sys-color-surface-light-container-high: #e6e6e6;
    --md-sys-color-surface-light-container-highest: #d9d9d9;

    /* Texto para fondos oscuros */
    --md-sys-color-on-surface-dark: #e6e6e6;
    --md-sys-color-on-surface-dark-variant: #b3b3b3;

    /* Texto para fondos claros */
    --md-sys-color-on-surface-light: #1c1c1c;
    --md-sys-color-on-surface-light-variant: #4d4d4d;

    /* Outline para ambos temas */
    --md-sys-color-outline-dark: #4d4d4d;
    --md-sys-color-outline-dark-variant: #3d3d3d;
    --md-sys-color-outline-light: #b3b3b3;
    --md-sys-color-outline-light-variant: #cccccc;

    /* Valores por defecto (secciones oscuras) */
    --md-sys-color-surface: var(--md-sys-color-surface-dark);
    --md-sys-color-surface-container-low: var(--md-sys-color-surface-dark-container-low);
    --md-sys-color-surface-container: var(--md-sys-color-surface-dark-container);
    --md-sys-color-surface-container-high: var(--md-sys-color-surface-dark-container-high);
    --md-sys-color-on-surface: var(--md-sys-color-on-surface-dark);
    --md-sys-color-on-surface-variant: var(--md-sys-color-on-surface-dark-variant);
    --md-sys-color-outline: var(--md-sys-color-outline-dark);
    --md-sys-color-outline-variant: var(--md-sys-color-outline-dark-variant);

    /* —— Aliases para compatibilidad —— */
    --color-bg: var(--md-sys-color-surface);
    --color-bg-alt: var(--md-sys-color-surface-container-low);
    --color-surface: var(--md-sys-color-surface-container);
    --color-text: var(--md-sys-color-on-surface);
    --color-text-muted: var(--md-sys-color-on-surface-variant);
    --color-accent: var(--md-sys-color-primary);
    --color-accent-hover: #e67300;
    --color-accent-soft: var(--md-sys-color-primary-container);
    --color-border: var(--md-sys-color-outline-variant);

    /* —— M3 shape scale (Expressive = más redondeado) —— */
    --md-sys-shape-corner-extra-small: 4px;
    --md-sys-shape-corner-small: 8px;
    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;
    --md-sys-shape-corner-extra-large: 28px;
    --md-sys-shape-corner-full: 9999px;

    --radius: var(--md-sys-shape-corner-large);
    --radius-lg: var(--md-sys-shape-corner-extra-large);
    --radius-button: var(--md-sys-shape-corner-full);

    /* —— Elevación con surface tint (M3) — usando naranja primary —— */
    --md-sys-elevation-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 2px 6px rgba(245, 124, 0, 0.15);
    --md-sys-elevation-2: 0 2px 4px rgba(0, 0, 0, 0.25), 0 4px 12px rgba(245, 124, 0, 0.18);
    --md-sys-elevation-3: 0 4px 8px rgba(0, 0, 0, 0.28), 0 8px 24px rgba(245, 124, 0, 0.22);

    /* —— Motion (M3 emphasized) —— */
    --md-sys-motion-duration-short: 200ms;
    --md-sys-motion-duration-medium: 300ms;
    --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
    --md-sys-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);

    /* —— Tipografía —— */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    /* —— Layout —— */
    --container-max: 1100px;
    --section-padding: 4rem 0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--md-sys-color-on-surface-dark);
    background-color: var(--md-sys-color-surface-dark);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ----- Header (M3 surface container - fondo oscuro) ----- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(28, 28, 28, 0.9);
    background: color-mix(in srgb, var(--md-sys-color-surface-dark) 85%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--md-sys-color-outline-dark-variant);
    transition: background var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 4rem;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--md-sys-color-on-surface-dark);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo-img {
    height: 2rem;
    width: auto;
    display: block;
}

.logo-net {
    font-weight: 300;
    color: var(--md-sys-color-on-surface-dark-variant);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-dark);
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
}

.nav-list {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list a {
    color: var(--md-sys-color-on-surface-dark-variant);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized);
    position: relative;
}

.nav-list a:hover {
    color: var(--md-sys-color-primary);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--md-sys-color-primary);
    transition: width var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.nav-list a:hover::after {
    width: 100%;
}

a[href^="mailto:"] {
    color: #0B3C5D;
    /* Un color personalizado */
    text-decoration: none;
    font-weight: bold;
}

/* Selecciona enlaces que empiezan con tel: */
a[href^="tel:"] {
    color: #0B3C5D;
    /* Un verde para el teléfono, por ejemplo */
    text-decoration: none;
    font-weight: bold;
}

a[href^="mailto:"]:hover,
a[href^="tel:"]:hover {
    text-decoration: underline;
    /* El subrayado aparece solo al pasar el mouse */
    opacity: 0.8;
    /* Se aclara un poco */
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--md-sys-color-surface-dark-container-low);
        border-bottom: 1px solid var(--md-sys-color-outline-dark-variant);
        padding: 1rem;
        display: none;
    }

    .nav.is-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-list a {
        display: block;
        padding: 0.75rem;
    }
}

/* ----- Hero (fondo oscuro) ----- */
.hero {
    position: relative;
    padding: 5rem 0 6rem;
    overflow: hidden;
    background: var(--md-sys-color-surface-dark);
    background-image: url("../img/hero1.webp");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-inner {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin: 0 0 1rem;
    max-width: 20ch;
}

.hero-title .highlight {
    color: var(--md-sys-color-primary);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--md-sys-color-on-surface-dark-variant);
    max-width: 42ch;
    margin: 0 0 2rem;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(28, 28, 28, 0.7) 0%, rgba(28, 28, 28, 0.85) 100%),
        radial-gradient(ellipse 80% 50% at 70% 0%, var(--md-sys-color-primary-container), transparent 50%),
        radial-gradient(ellipse 60% 40% at 100% 80%, rgba(245, 124, 0, 0.12), transparent 50%);
    pointer-events: none;
}

/* ----- Botones (M3 Expressive: filled + tonal, pill shape) ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    min-height: 40px;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-decoration: none;
    border-radius: var(--radius-button);
    cursor: pointer;
    transition: background var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized),
        color var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized),
        box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized);
    border: none;
}

.btn-primary {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: var(--md-sys-elevation-1);
    font-weight: 700;
    transition: background var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized),
        box-shadow var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized),
        transform var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    box-shadow: var(--md-sys-elevation-2);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    border: 1px solid rgba(11, 60, 93, 0.3);
}

.btn-secondary:hover {
    background: color-mix(in srgb, var(--md-sys-color-secondary-container) 70%, var(--md-sys-color-secondary));
    border-color: var(--md-sys-color-secondary);
}

.btn-block {
    width: 100%;
}

/* ----- Secciones genéricas ----- */
.section {
    padding: var(--section-padding);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin: 0 0 0.5rem;
    letter-spacing: -0.02em;
    color: var(--md-sys-color-on-surface-dark);
}

.section-intro {
    color: var(--md-sys-color-on-surface-dark-variant);
    margin: 0 0 2.5rem;
    max-width: 50ch;
}

/* ----- Servicios (fondo claro) ----- */
.services {
    background: var(--md-sys-color-surface-light);
}

.services .section-title {
    color: var(--md-sys-color-on-surface-light);
}

.services .section-intro {
    color: var(--md-sys-color-on-surface-light-variant);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.service-card {
    background: var(--md-sys-color-surface-light-container-lowest);
    border: 1px solid var(--md-sys-color-outline-light-variant);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: border-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized),
        transform var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate),
        box-shadow var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.service-card:hover {
    border-color: var(--md-sys-color-primary);
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: color-mix(in srgb, var(--md-sys-color-surface-light-container-lowest) 95%, var(--md-sys-color-primary-container));
}

.service-card h3 {
    color: var(--md-sys-color-on-surface-light);
}

.service-card p {
    color: var(--md-sys-color-on-surface-light-variant);
}

.service-media {
    margin-bottom: 1rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.service-media img {
    display: block;
    width: 100%;
    height: 180px;
    object-fit: cover;
}


/* ----- Nosotros (fondo oscuro) ----- */
.about {
    background: var(--md-sys-color-surface-dark);
}

.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-lead {
    font-size: 1.1rem;
    color: var(--md-sys-color-on-surface-dark-variant);
    margin: 0 0 1.5rem;
}

.about-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.about-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--md-sys-color-on-surface-dark-variant);
}

.about-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 1rem;
    width: 8px;
    height: 8px;
    background: var(--md-sys-color-primary);
    border-radius: var(--md-sys-shape-corner-full);
}

.about-list strong {
    color: var(--md-sys-color-on-surface-dark);
}

.about-card {
    background: var(--md-sys-color-surface-dark-container-high);
    border: 1px solid var(--md-sys-color-outline-dark-variant);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--md-sys-elevation-1);
}

.about-stat {
    display: block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--md-sys-color-primary);
    line-height: 1;
}

.about-stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface-dark);
}

.about-stat-label {
    font-size: 0.9rem;
    color: var(--md-sys-color-on-surface-dark-variant);
}

@media (max-width: 768px) {
    .about-inner {
        grid-template-columns: 1fr;
    }

    .about-visual {
        order: -1;
    }
}

/* ----- Contacto (fondo claro) ----- */
.contact {
    background: var(--md-sys-color-surface-light);
}

.contact .section-title {
    color: var(--md-sys-color-on-surface-light);
}

.contact .section-intro {
    color: var(--md-sys-color-on-surface-light-variant);
}

.contact-channels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-channel {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 2rem 2rem 2rem 2rem;
    background: var(--md-sys-color-surface-light-container-lowest);
    border: 1px solid var(--md-sys-color-outline-light-variant);
    border-radius: var(--radius-lg);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition:
        border-color var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized),
        transform var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized-decelerate),
        box-shadow var(--md-sys-motion-duration-medium) var(--md-sys-motion-easing-emphasized);
}

.contact-channel:hover {
    border-color: var(--md-sys-color-primary);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(245, 124, 0, 0.15);
    background: color-mix(in srgb, var(--md-sys-color-surface-light-container-lowest) 94%, var(--md-sys-color-primary-container));
}

.contact-channel-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: var(--md-sys-color-primary-container);
    border-radius: var(--md-sys-shape-corner-large);
    color: var(--md-sys-color-primary);
    transition: background var(--md-sys-motion-duration-short) var(--md-sys-motion-easing-emphasized);
}

.contact-channel:hover .contact-channel-icon {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

.contact-channel-icon svg {
    width: 26px;
    height: 26px;
}

.contact-channel-label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--md-sys-color-on-surface-light-variant);
}

.contact-channel-value {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--md-sys-color-on-surface-light);
    letter-spacing: -0.01em;
}

.contact-location {
    font-size: 0.95rem;
    color: var(--md-sys-color-on-surface-light-variant);
    margin: 0;
    padding-top: 0.5rem;
    border-top: 1px solid var(--md-sys-color-outline-light-variant);
}

.contact-location strong {
    color: var(--md-sys-color-on-surface-light);
}

@media (max-width: 640px) {
    .contact-channels {
        grid-template-columns: 1fr;
    }
}

/* ----- Footer (fondo oscuro) ----- */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--md-sys-color-outline-dark-variant);
    background: var(--md-sys-color-surface-dark-container-low);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: var(--md-sys-color-on-surface-dark);
}

.footer-logo .logo-img {
    height: 1.5rem;
    width: auto;
}

.footer-logo .logo-net {
    font-weight: 300;
    color: var(--md-sys-color-on-surface-dark-variant);
}

.footer-copy {
    margin: 0;
    font-size: 0.875rem;
    color: var(--md-sys-color-on-surface-dark-variant);
}