/* =========================================================
   FORTEX CONSTRUCTORA — Hoja de estilos principal
   1. Tokens de diseño          6. Proyectos
   2. Base y utilidades         7. Proceso / Nosotros / CTA
   3. Encabezado y navegación   8. FAQ / Contacto / Footer
   4. Hero                      9. Flotantes
   5. Servicios                10. Responsive
   ========================================================= */

/* ===== 1. TOKENS DE DISEÑO ===== */
:root {
    /* Marca */
    --brand-900: #05143e;
    --brand-800: #0a2472;
    --brand-700: #123089;
    --brand-100: #e7ecfa;
    --accent-600: #d98407;
    --accent-500: #f39c12;
    --accent-400: #f5b041;
    --accent-100: #fdf1dd;

    /* Neutros */
    --white: #ffffff;
    --gray-50: #f8f9fb;
    --gray-100: #f1f3f7;
    --gray-200: #e4e8ef;
    --gray-300: #cfd6e2;
    --gray-500: #7a8699;
    --gray-600: #5b6678;
    --gray-800: #2b3444;
    --gray-900: #151b26;

    /* Semánticos (tema claro) */
    --bg: var(--white);
    --bg-alt: var(--gray-50);
    --surface: var(--white);
    --surface-2: var(--gray-100);
    --text: var(--gray-900);
    --text-muted: var(--gray-600);
    --border: var(--gray-200);
    --primary: var(--brand-800);
    --primary-strong: var(--brand-900);
    --primary-soft: var(--brand-100);
    --on-primary: var(--white);
    --accent: var(--accent-500);
    --accent-strong: var(--accent-600);
    --accent-soft: var(--accent-100);

    --success-bg: #e6f6ec;
    --success-fg: #12643a;
    --success-bd: #b7e3c8;
    --error-bg: #fdecec;
    --error-fg: #9b1c1c;
    --error-bd: #f5c2c2;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(11, 22, 48, .06), 0 2px 8px rgba(11, 22, 48, .05);
    --shadow-md: 0 6px 18px rgba(11, 22, 48, .08);
    --shadow-lg: 0 18px 40px rgba(11, 22, 48, .14);
    --ring: 0 0 0 3px rgba(243, 156, 18, .35);

    /* Formas y ritmo */
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --header-h: 72px;
    --section-y: clamp(3.5rem, 7vw, 6.5rem);

    /* Tipografía */
    --font-display: 'Montserrat', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

    /* Movimiento */
    --ease: cubic-bezier(.22, .61, .36, 1);
    --t-fast: .18s var(--ease);
    --t: .28s var(--ease);
}

/* ===== TEMA OSCURO ===== */
[data-theme="dark"] {
    --bg: #0b1020;
    --bg-alt: #0f1730;
    --surface: #121b33;
    --surface-2: #17213d;
    --text: #e8ecf6;
    --text-muted: #a3aec6;
    --border: #222e4d;
    --primary: #5b86f7;
    --primary-strong: #7ba0ff;
    --primary-soft: #18244a;
    --on-primary: #071022;
    --accent: #f5b041;
    --accent-strong: #ffc46b;
    --accent-soft: #33280f;

    --success-bg: #10301f;
    --success-fg: #9ae6b8;
    --success-bd: #1d5236;
    --error-bg: #351618;
    --error-fg: #f7a8a8;
    --error-bd: #5d2427;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md: 0 8px 22px rgba(0, 0, 0, .45);
    --shadow-lg: 0 22px 48px rgba(0, 0, 0, .55);
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 1.25rem);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.65;
    font-size: 1rem;
    /* Se propaga al viewport e impide el desplazamiento horizontal que
       provocaría el panel de menú cuando está cerrado fuera de pantalla.
       No se usa en <html> porque allí rompería el encabezado `sticky`. */
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--t), color var(--t);
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.2;
    letter-spacing: -0.015em;
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

/* El atributo `hidden` debe ganar siempre, aunque la clase defina `display` */
[hidden] {
    display: none !important;
}

.sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.icon {
    width: 1em;
    height: 1em;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: none;
}

.container {
    width: min(100% - 2.5rem, 1200px);
    margin-inline: auto;
}

.container--narrow {
    width: min(100% - 2.5rem, 820px);
}

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

.skip-link {
    position: absolute;
    left: 50%;
    top: 0;
    /* Se oculta por su propia altura: así no asoma aunque el texto
       llegue a ocupar dos líneas en pantallas estrechas. */
    transform: translate(-50%, -100%);
    z-index: 2000;
    background: var(--primary);
    color: var(--on-primary);
    padding: .75rem 1.25rem;
    border-radius: 0 0 var(--radius) var(--radius);
    font-weight: 600;
    white-space: nowrap;
    transition: transform var(--t);
}

.skip-link:focus {
    transform: translate(-50%, 0);
}

.eyebrow {
    font-family: var(--font-display);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--accent-strong);
    margin-bottom: .6rem;
}

.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto clamp(2.5rem, 5vw, 3.5rem);
}

.section-title {
    font-size: clamp(1.75rem, 3.4vw, 2.5rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 1rem;
}

.section-title::after {
    content: '';
    display: block;
    width: 72px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
    border-radius: 2px;
    margin: .9rem auto 0;
}

.section-title--left::after {
    margin-inline: 0;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .45rem 1rem;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .25);
    backdrop-filter: blur(6px);
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.badge .icon {
    font-size: 1.05em;
    color: var(--accent-400);
}

/* ===== BOTONES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    padding: .9rem 1.75rem;
    border: 2px solid transparent;
    border-radius: var(--radius-pill);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .95rem;
    line-height: 1;
    cursor: pointer;
    text-align: center;
    transition: background-color var(--t-fast), color var(--t-fast),
                border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn .icon {
    font-size: 1.05em;
    transition: transform var(--t-fast);
}

.btn:hover .icon {
    transform: translateX(3px);
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--on-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-strong);
    border-color: var(--primary-strong);
    box-shadow: var(--shadow-md);
}

.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #1b1206;
    box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
}

.btn-ghost {
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .55);
    color: #fff;
    backdrop-filter: blur(6px);
}

.btn-ghost:hover {
    background: #fff;
    border-color: #fff;
    color: var(--brand-800);
}

.btn-ghost-light {
    background: transparent;
    border-color: rgba(255, 255, 255, .6);
    color: #fff;
}

.btn-ghost-light:hover {
    background: rgba(255, 255, 255, .14);
}

.btn-sm {
    padding: .65rem 1.25rem;
    font-size: .875rem;
}

.btn-block {
    width: 100%;
}

.btn[disabled] {
    opacity: .7;
    cursor: not-allowed;
    transform: none;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text);
    font-size: 1.15rem;
    cursor: pointer;
    transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.icon-btn:hover {
    background: var(--primary-soft);
    color: var(--primary);
    border-color: var(--primary);
}

/* ===== 3. BARRA SUPERIOR / ENCABEZADO ===== */
.topbar {
    background: var(--brand-900);
    color: rgba(255, 255, 255, .82);
    font-size: .82rem;
}

.topbar__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 1.75rem;
    padding-block: .55rem;
}

.topbar__item {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    transition: color var(--t-fast);
}

.topbar__item .icon {
    color: var(--accent-400);
    font-size: 1em;
}

a.topbar__item:hover {
    color: #fff;
}

.topbar__item--muted {
    margin-right: auto;
    order: -1;
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--t), background-color var(--t);
}

.header.is-stuck {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: var(--header-h);
}

/* Logotipo */
.logo {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
}

.logo__mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--brand-800), var(--brand-700));
    color: #fff;
    flex: none;
}

.logo__mark svg {
    width: 26px;
    height: 26px;
}

.logo__text strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: .04em;
    line-height: 1;
    color: var(--text);
}

.tagline {
    display: block;
    font-size: .65rem;
    color: var(--accent-strong);
    letter-spacing: .22em;
    font-weight: 700;
    text-transform: uppercase;
}

/* Navegación */
.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-left: auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    position: relative;
    font-weight: 600;
    font-size: .95rem;
    color: var(--text-muted);
    padding-block: .35rem;
    transition: color var(--t-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t);
}

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

.nav-link:hover::after,
.nav-link.is-active::after {
    transform: scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.menu-toggle {
    display: none;
}

/* Alternador de tema */
.icon--moon,
[data-theme="dark"] .icon--sun {
    display: none;
}

[data-theme="dark"] .icon--moon {
    display: block;
}

.icon--close {
    display: none;
}

.menu-toggle[aria-expanded="true"] .icon--open {
    display: none;
}

.menu-toggle[aria-expanded="true"] .icon--close {
    display: block;
}

/* Barra de progreso de lectura */
.scroll-progress {
    position: absolute;
    left: 0;
    bottom: -1px;
    height: 3px;
    width: 100%;
    transform: scaleX(0);
    transform-origin: left;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

.nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(5, 12, 30, .55);
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity var(--t);
}

.nav-overlay.is-visible {
    opacity: 1;
}

/* ===== 4. HERO ===== */
.hero {
    position: relative;
    isolation: isolate;
    color: #fff;
    padding-block: clamp(4rem, 9vw, 7rem) 0;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(115deg, rgba(5, 20, 62, .94) 0%, rgba(10, 36, 114, .86) 55%, rgba(10, 36, 114, .72) 100%),
        url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?auto=format&fit=crop&w=1600&q=75');
    background-size: cover;
    background-position: center;
    animation: heroZoom 22s var(--ease) infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1); }
    to   { transform: scale(1.08); }
}

.hero__inner {
    padding-bottom: clamp(3rem, 6vw, 5rem);
}

.hero__content {
    max-width: 760px;
}

.hero-title {
    font-size: clamp(2.1rem, 5.6vw, 3.75rem);
    font-weight: 800;
    /* Explícito: la regla base de encabezados usa --text (oscuro) */
    color: #fff;
    margin-bottom: 1.25rem;
    text-wrap: balance;
}

.hero-text {
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    max-width: 640px;
    color: rgba(255, 255, 255, .9);
    margin-bottom: 2rem;
}

.hero-text strong {
    color: #fff;
    font-weight: 600;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.25rem;
}

.hero__points {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    font-size: .92rem;
    color: rgba(255, 255, 255, .88);
}

.hero__points li {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.hero__points .icon {
    color: var(--accent-400);
    stroke-width: 2.6;
}

/* Franja de cifras */
.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transform: translateY(50%);
    margin-top: -1px;
}

.hero-stat {
    background: var(--surface);
    padding: 1.6rem 1rem;
    text-align: center;
}

.hero-stat__number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.2vw, 2.3rem);
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.hero-stat__label {
    display: block;
    margin-top: .35rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ===== 5. SERVICIOS ===== */
.services {
    padding-top: calc(var(--section-y) + 4rem);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.75rem;
}

.service-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}

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

.service-icon {
    display: grid;
    place-items: center;
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 1.85rem;
    margin-bottom: 1.35rem;
    transition: background-color var(--t), color var(--t), transform var(--t);
}

.service-card:hover .service-icon {
    background: var(--accent);
    color: #fff;
    transform: rotate(-6deg) scale(1.06);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: .65rem;
}

.service-card > p {
    color: var(--text-muted);
    font-size: .96rem;
}

.service-list {
    margin-top: 1.1rem;
    padding-top: 1.1rem;
    border-top: 1px dashed var(--border);
    display: grid;
    gap: .5rem;
}

.service-list li {
    position: relative;
    padding-left: 1.5rem;
    font-size: .9rem;
    color: var(--text-muted);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: .55em;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

/* ===== 6. PROYECTOS ===== */
.projects {
    background: var(--bg-alt);
}

.filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .6rem;
    margin-bottom: 2.5rem;
}

.filter {
    padding: .55rem 1.35rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: .88rem;
    cursor: pointer;
    transition: all var(--t-fast);
}

.filter:hover {
    border-color: var(--accent);
    color: var(--accent-strong);
}

.filter.is-active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--on-primary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.75rem;
}

.project-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--t), box-shadow var(--t), opacity var(--t);
}

.project-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.project-item.is-hidden {
    display: none;
}

.project-media {
    position: relative;
    aspect-ratio: 4 / 3;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--brand-800), var(--brand-700));
    color: rgba(255, 255, 255, .55);
    font-size: 3.5rem;
    overflow: hidden;
}

.project-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s var(--ease);
}

.project-item:hover .project-media img {
    transform: scale(1.07);
}

/* Si la imagen remota falla, queda visible el degradado + icono */
.project-media.has-error img {
    display: none;
}

.project-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(5, 20, 62, .55), transparent 55%);
    opacity: 0;
    transition: opacity var(--t);
}

.project-item:hover .project-media::after {
    opacity: 1;
}

.project-tag {
    position: absolute;
    z-index: 2;
    top: .9rem;
    left: .9rem;
    padding: .3rem .8rem;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .92);
    color: var(--brand-800);
    font-family: var(--font-display);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.project-info {
    padding: 1.4rem 1.5rem 1.6rem;
}

.project-info h3 {
    font-size: 1.15rem;
    margin-bottom: .4rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: .93rem;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: .45rem;
    margin-top: .75rem;
    font-size: .85rem !important;
    color: var(--text-muted);
}

.project-meta .icon {
    color: var(--accent);
}

.projects-empty {
    text-align: center;
    color: var(--text-muted);
    padding-top: 2rem;
}

/* ===== 7. PROCESO ===== */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.75rem;
    counter-reset: step;
}

.step {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.6rem 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--t), box-shadow var(--t);
}

.step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.step__number {
    position: absolute;
    top: -18px;
    left: 1.6rem;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: var(--primary);
    color: var(--on-primary);
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1rem;
    box-shadow: var(--shadow-md);
}

.step h3 {
    font-size: 1.1rem;
    margin: .75rem 0 .5rem;
}

.step p {
    color: var(--text-muted);
    font-size: .93rem;
}

/* Línea que conecta los pasos en pantallas anchas */
@media (min-width: 981px) {
    .step:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 5px;
        right: -1.1rem;
        width: .9rem;
        height: 2px;
        background: var(--border);
    }
}

/* ===== NOSOTROS ===== */
.about {
    background: var(--bg-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.about-text > p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.mv {
    display: grid;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.mv__item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius);
    padding: 1.25rem 1.4rem;
}

.mv__item h3 {
    display: flex;
    align-items: center;
    gap: .55rem;
    font-size: 1.05rem;
    color: var(--primary);
    margin-bottom: .4rem;
}

.mv__item h3 .icon {
    color: var(--accent);
}

.mv__item p {
    color: var(--text-muted);
    font-size: .94rem;
}

.values {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.75rem;
    box-shadow: var(--shadow-sm);
}

.values__title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.values__list {
    display: grid;
    gap: 1.35rem;
}

.values__list li {
    display: flex;
    gap: 1rem;
}

.values__icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 1.2rem;
    flex: none;
}

.values__list strong {
    display: block;
    font-family: var(--font-display);
    font-size: .98rem;
    margin-bottom: .15rem;
}

.values__list p {
    color: var(--text-muted);
    font-size: .9rem;
    line-height: 1.55;
}

/* ===== LLAMADO A LA ACCIÓN ===== */
.cta {
    background: linear-gradient(120deg, var(--brand-900), var(--brand-800) 60%, var(--brand-700));
    color: #fff;
    padding-block: clamp(2.75rem, 6vw, 4.25rem);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(243, 156, 18, .28), transparent 65%);
    pointer-events: none;
}

.cta__inner {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cta h2 {
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    color: #fff;
    margin-bottom: .5rem;
}

.cta p {
    color: rgba(255, 255, 255, .85);
    max-width: 52ch;
}

.cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .9rem;
}

/* ===== 8. FAQ ===== */
.faq-list {
    display: grid;
    gap: .9rem;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--t), box-shadow var(--t);
}

.faq-item[open] {
    border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
    box-shadow: var(--shadow-md);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 1.35rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary:hover {
    color: var(--primary);
}

.faq-item__chevron {
    font-size: 1.25rem;
    color: var(--accent);
    transition: transform var(--t);
}

.faq-item[open] .faq-item__chevron {
    transform: rotate(180deg);
}

.faq-item__body {
    padding: 0 1.35rem 1.25rem;
    color: var(--text-muted);
    font-size: .96rem;
    animation: fadeSlide .3s var(--ease);
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ===== CONTACTO ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
}

.contact-info h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.contact-list {
    display: grid;
    gap: 1.1rem;
    margin-bottom: 1.75rem;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: .9rem;
    color: var(--text-muted);
    font-size: .96rem;
}

.contact-list .icon {
    font-size: 1.15rem;
    color: var(--accent);
    margin-top: .18rem;
}

.contact-list a {
    color: var(--text-muted);
    transition: color var(--t-fast);
    word-break: break-word;
}

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

.social {
    display: flex;
    gap: .7rem;
    margin-bottom: 1.75rem;
}

.social a {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--primary);
    font-size: 1.05rem;
    transition: all var(--t-fast);
}

.social a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-3px);
}

.map {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    line-height: 0;
}

.map iframe {
    width: 100%;
    height: 260px;
    border: 0;
}

[data-theme="dark"] .map iframe {
    filter: invert(.9) hue-rotate(180deg);
}

/* Formulario */
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 3vw, 2.25rem);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1.15rem;
}

.form-group label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: .45rem;
    color: var(--text);
}

.form-group label span {
    color: var(--accent-strong);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: .85rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    font-size: .95rem;
    font-family: inherit;
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.form-group textarea {
    resize: vertical;
    min-height: 130px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--ring);
}

.form-group input.is-invalid,
.form-group textarea.is-invalid {
    border-color: var(--error-fg);
}

.select-wrap {
    position: relative;
}

.select-wrap select {
    appearance: none;
    padding-right: 2.75rem;
    cursor: pointer;
}

.select-wrap__chevron {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.15rem;
    color: var(--text-muted);
    pointer-events: none;
}

.field-error {
    color: var(--error-fg);
    font-size: .8rem;
    margin-top: .35rem;
    min-height: 0;
}

.char-count {
    text-align: right;
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: .3rem;
}

/* Campo trampa anti-spam */
.hp {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-note {
    font-size: .78rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: .9rem;
}

.spinner {
    display: none;
    width: 1.05em;
    height: 1.05em;
    border: 2px solid rgba(255, 255, 255, .45);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

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

.btn.is-loading .btn__icon {
    display: none;
}

.btn.is-loading .spinner {
    display: block;
}

.form-message {
    margin-top: 1rem;
    padding: .85rem 1rem;
    border-radius: var(--radius-sm);
    font-size: .9rem;
    font-weight: 600;
    display: none;
}

.form-message.is-visible {
    display: block;
}

.form-message.success {
    background: var(--success-bg);
    color: var(--success-fg);
    border: 1px solid var(--success-bd);
}

.form-message.error {
    background: var(--error-bg);
    color: var(--error-fg);
    border: 1px solid var(--error-bd);
}

.form-message.info {
    background: var(--primary-soft);
    color: var(--primary);
    border: 1px solid var(--border);
}

/* ===== PIE DE PÁGINA ===== */
.footer {
    background: var(--brand-900);
    color: rgba(255, 255, 255, .72);
    padding-top: clamp(3rem, 6vw, 4.5rem);
    font-size: .92rem;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
}

.footer h3 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1.1rem;
}

.logo--footer {
    margin-bottom: 1rem;
}

.logo--footer .logo__mark {
    background: rgba(255, 255, 255, .12);
}

.logo--footer .logo__text strong {
    color: #fff;
}

.footer__brand p {
    margin-bottom: 1.5rem;
    max-width: 38ch;
}

.social--footer {
    margin-bottom: 0;
}

.social--footer a {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .15);
    color: #fff;
}

.footer__col ul {
    display: grid;
    gap: .65rem;
}

.footer__col a {
    transition: color var(--t-fast), padding-left var(--t-fast);
}

.footer__col a:hover {
    color: var(--accent-400);
}

.footer__col nav a:hover,
nav.footer__col a:hover {
    padding-left: 4px;
}

.footer__contact li {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    line-height: 1.5;
}

.footer__contact .icon {
    color: var(--accent-400);
    margin-top: .2rem;
    font-size: 1.05em;
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    padding-block: 1.35rem;
    border-top: 1px solid rgba(255, 255, 255, .12);
    font-size: .85rem;
    color: rgba(255, 255, 255, .6);
}

/* ===== 9. BOTONES FLOTANTES ===== */
.fab {
    position: fixed;
    right: 1.25rem;
    z-index: 950;
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: transform var(--t-fast), background-color var(--t-fast), opacity var(--t);
}

.fab:hover {
    transform: scale(1.08);
}

.fab--whatsapp {
    bottom: 1.25rem;
    background: #25d366;
    color: #fff;
    font-size: 1.8rem;
}

.fab--whatsapp::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid #25d366;
    animation: pulse 2.4s ease-out infinite;
}

@keyframes pulse {
    0%   { transform: scale(1); opacity: .7; }
    70%  { transform: scale(1.5); opacity: 0; }
    100% { transform: scale(1.5); opacity: 0; }
}

.fab__tip {
    position: absolute;
    right: calc(100% + .6rem);
    white-space: nowrap;
    background: var(--gray-900);
    color: #fff;
    font-family: var(--font-body);
    font-size: .78rem;
    font-weight: 600;
    padding: .35rem .7rem;
    border-radius: var(--radius-sm);
    opacity: 0;
    pointer-events: none;
    transform: translateX(6px);
    transition: opacity var(--t-fast), transform var(--t-fast);
}

.fab--whatsapp:hover .fab__tip {
    opacity: 1;
    transform: translateX(0);
}

.fab--top {
    bottom: 5.75rem;
    width: 46px;
    height: 46px;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 1.25rem;
}

.fab--top:hover {
    background: var(--primary-strong);
}

/* ===== ANIMACIONES DE ENTRADA ===== */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* ===== 10. RESPONSIVE ===== */
@media (max-width: 1080px) {
    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (max-width: 980px) {
    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
        transform: translateY(35%);
    }

    .about-content,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .services {
        padding-top: calc(var(--section-y) + 5rem);
    }
}

@media (max-width: 900px) {
    .topbar__item:not(.topbar__item--muted) {
        font-size: .78rem;
    }

    .topbar__item--muted {
        display: none;
    }

    .topbar__inner {
        justify-content: center;
        gap: 1.25rem;
    }

    /* Menú móvil */
    .menu-toggle {
        display: inline-flex;
    }

    /* `backdrop-filter` convierte al encabezado en bloque contenedor de sus
       descendientes `fixed`, lo que dejaría el panel atrapado dentro de la
       barra. En móvil se usa fondo sólido para que el panel se posicione
       respecto al viewport. */
    .header {
        backdrop-filter: none;
        background: var(--bg);
    }

    .nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        z-index: 1001;
        width: min(82vw, 330px);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: 5.5rem 1.75rem 2rem;
        background: var(--bg);
        border-left: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateX(105%);
        transition: transform .35s var(--ease);
        overflow-y: auto;
    }

    .nav.is-open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav-list li + li {
        border-top: 1px solid var(--border);
    }

    .nav-link {
        display: block;
        padding: 1rem .25rem;
        font-size: 1.05rem;
    }

    .nav-link::after {
        display: none;
    }

    .nav-link.is-active {
        color: var(--primary);
        padding-left: .75rem;
        border-left: 3px solid var(--accent);
    }

    .nav-cta {
        margin-top: 1.75rem;
    }

    /* Por encima del panel para que el botón de cerrar siga accesible */
    .nav-actions {
        margin-left: auto;
        position: relative;
        z-index: 1002;
    }

    body.nav-open {
        overflow: hidden;
    }
}

@media (max-width: 680px) {
    :root {
        --header-h: 64px;
    }

    /* El correo es largo y haría saltar la barra superior a dos líneas.
       Sigue disponible en Contacto y en el pie de página. */
    .topbar__item[href^="mailto"] {
        display: none;
    }

    .container,
    .container--narrow {
        width: min(100% - 2rem, 1200px);
    }

    .hero__stats {
        transform: none;
        margin-top: 0;
        border-radius: var(--radius);
    }

    .services {
        padding-top: var(--section-y);
    }

    .hero__inner {
        padding-bottom: 2.5rem;
    }

    .hero__actions .btn {
        flex: 1 1 100%;
    }

    .hero__points {
        flex-direction: column;
        gap: .6rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .footer__grid {
        grid-template-columns: 1fr;
    }

    .footer__bottom {
        justify-content: center;
        text-align: center;
    }

    .cta__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .cta__actions .btn {
        flex: 1 1 auto;
    }

    .logo__text strong {
        font-size: 1.25rem;
    }

    .fab {
        right: 1rem;
    }
}

@media (max-width: 420px) {
    .hero__stats {
        grid-template-columns: 1fr;
    }

    .filters {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: .35rem;
        scrollbar-width: none;
    }

    .filters::-webkit-scrollbar {
        display: none;
    }
}

/* ===== PREFERENCIA DE MOVIMIENTO REDUCIDO ===== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    .hero__bg {
        animation: none;
    }
}

/* ===== IMPRESIÓN ===== */
@media print {
    .topbar,
    .header,
    .fab,
    .filters,
    .map,
    .cta__actions,
    .contact-form,
    .nav-overlay {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .hero {
        color: #000;
        padding-block: 2rem;
    }

    .hero__bg {
        display: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    a[href^="http"]::after {
        content: ' (' attr(href) ')';
        font-size: .8em;
    }
}