/* ============================
3dpaintcr - Variables y base
============================ */
:root {
--color-bg: #F7F4EF;
--color-ink: #1E2421;
--color-primary: #0F5C4E;
--color-primary-dark: #0A3E35;
--color-accent: #C1602A;
--color-surface: #FFFFFF;
--color-muted: #8A8578;
--font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
--radius: 14px;
--container-width: 1140px;
--transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
margin: 0;
font-family: var(--font-base);
background: var(--color-bg);
color: var(--color-ink);
line-height: 1.5;
-webkit-font-smoothing: antialiased;
}

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

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

.container {
width: 100%;
max-width: var(--container-width);
margin: 0 auto;
padding: 0 1.25rem;
}

.screen-reader-text { position: absolute; left: -9999px; }

.skip-link:focus {
left: 1rem;
top: 1rem;
position: fixed;
background: var(--color-surface);
padding: 0.5rem 1rem;
z-index: 999;
}

/* Botones */
.btn {
display: inline-block;
padding: 0.85rem 1.5rem;
border-radius: 999px;
font-weight: 600;
border: none;
cursor: pointer;
transition: transform var(--transition), background var(--transition);
}
.btn--accent { background: var(--color-accent); color: #fff; }
.btn--accent:hover { background: #a94f22; transform: translateY(-1px); }
.btn--lg { padding: 1.1rem 2rem; font-size: 1.05rem; }

/* Header */
.site-header {
position: sticky;
top: 0;
z-index: 40;
background: rgba(247,244,239,0.92);
backdrop-filter: blur(6px);
border-bottom: 1px solid rgba(30,36,33,0.08);
}
.site-header__inner {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0.85rem 1.25rem;
}
.site-header__logo { font-weight: 800; font-size: 1.15rem; color: var(--color-primary); }
.site-header__cta { font-size: 0.85rem; padding: 0.6rem 1.1rem; }

/* Secciones genericas */
.seccion__titulo { font-size: 1.75rem; margin: 0 0 1.5rem; color: var(--color-primary-dark); }

section { padding: 3.5rem 0; }

/* Hero */
.hero {
position: relative;
min-height: 80vh;
display: flex;
align-items: center;
background-size: cover;
background-position: center;
background-color: var(--color-primary-dark);
overflow: hidden;
color: #fff;
}
.hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.hero__overlay {
position: absolute;
inset: 0;
background: linear-gradient(180deg, rgba(10,62,53,0.55), rgba(10,62,53,0.75));
z-index: 1;
}
.hero__content { position: relative; z-index: 2; padding: 4rem 1.25rem; }
.hero__titulo { font-size: 2.1rem; margin: 0 0 1rem; line-height: 1.15; }
.hero__subtitulo { font-size: 1.05rem; margin: 0 0 2rem; max-width: 40ch; color: rgba(255,255,255,0.9); }

/* Catalogo */
.catalogo__filtros { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2rem; }
.catalogo__filtro {
background: var(--color-surface);
border: 1px solid rgba(30,36,33,0.15);
border-radius: 999px;
padding: 0.5rem 1rem;
font-size: 0.85rem;
cursor: pointer;
transition: background var(--transition), color var(--transition);
}
.catalogo__filtro.is-activo, .catalogo__filtro:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.catalogo__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.5rem; }
.producto-card {
background: var(--color-surface);
border-radius: var(--radius);
overflow: hidden;
box-shadow: 0 6px 18px rgba(30,36,33,0.06);
display: flex;
flex-direction: column;
}
.producto-card__imagen { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
.producto-card__body { padding: 1.1rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.producto-card__titulo { margin: 0; font-size: 1.05rem; }
.producto-card__desc { margin: 0; font-size: 0.9rem; color: var(--color-muted); }
.producto-card__precio { margin: 0; font-weight: 700; color: var(--color-primary-dark); }
.producto-card__cta { margin-top: auto; text-align: center; font-size: 0.9rem; }
.producto-card.is-oculto { display: none; }

/* Credibilidad */
.credibilidad { background: var(--color-surface); }
.credibilidad__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; margin-bottom: 2.5rem; }
.credibilidad__item { border-left: 3px solid var(--color-accent); padding-left: 1rem; }
.credibilidad__item h3 { margin: 0 0 0.4rem; color: var(--color-primary-dark); }
.credibilidad__item p { margin: 0; color: var(--color-muted); font-size: 0.92rem; }
.credibilidad__logos { display: flex; flex-wrap: wrap; align-items: center; gap: 2.5rem; opacity: 0.9; }
.credibilidad__logos img { max-height: 56px; width: auto; filter: grayscale(1); }

/* Como funciona */
.como-funciona__pasos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.75rem; }
.como-funciona__paso { text-align: left; }
.como-funciona__numero {
display: inline-flex;
align-items: center;
justify-content: center;
width: 2.4rem;
height: 2.4rem;
border-radius: 50%;
background: var(--color-primary);
color: #fff;
font-weight: 700;
margin-bottom: 0.75rem;
}
.como-funciona__paso h3 { margin: 0 0 0.4rem; }
.como-funciona__paso p { margin: 0; color: var(--color-muted); }

/* Galeria */
.galeria__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.75rem; }
.galeria__item { padding: 0; border: none; background: none; cursor: pointer; border-radius: 10px; overflow: hidden; aspect-ratio: 1/1; }
.galeria__item img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.galeria__item:hover img { transform: scale(1.05); }

.lightbox {
position: fixed;
inset: 0;
background: rgba(10,15,14,0.92);
display: flex;
align-items: center;
justify-content: center;
flex-direction: column;
z-index: 100;
padding: 1.5rem;
}
.lightbox[hidden] { display: none; }
.lightbox__imagen { max-height: 78vh; max-width: 92vw; border-radius: 8px; }
.lightbox__desc { color: #fff; margin-top: 1rem; text-align: center; }
.lightbox__cerrar, .lightbox__prev, .lightbox__next {
position: absolute;
background: rgba(255,255,255,0.12);
color: #fff;
border: none;
border-radius: 50%;
width: 2.6rem;
height: 2.6rem;
font-size: 1.5rem;
cursor: pointer;
}
.lightbox__cerrar { top: 1.25rem; right: 1.25rem; }
.lightbox__prev { left: 1.25rem; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 1.25rem; top: 50%; transform: translateY(-50%); }

/* Footer */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,0.92); padding: 3rem 0 1.5rem; }
.site-footer__inner { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-bottom: 2rem; }
.site-footer__brand { font-size: 1.2rem; font-weight: 800; margin: 0 0 0.4rem; }
.site-footer__heading { font-weight: 700; margin: 0 0 0.6rem; }
.site-footer__social { list-style: none; padding: 0; margin: 0; display: flex; gap: 1rem; flex-wrap: wrap; }
.site-footer__social a { opacity: 0.85; }
.site-footer__social a:hover { opacity: 1; text-decoration: underline; }
.site-footer__bottom {
border-top: 1px solid rgba(255,255,255,0.15);
padding-top: 1.25rem;
display: flex;
flex-wrap: wrap;
justify-content: space-between;
gap: 0.75rem;
font-size: 0.85rem;
color: rgba(255,255,255,0.7);
}
.site-footer__proceso { color: rgba(255,255,255,0.55); font-size: 0.8rem; }
.site-footer__proceso:hover { color: rgba(255,255,255,0.85); }

/* WhatsApp flotante */
.whatsapp-float {
position: fixed;
bottom: 1.25rem;
right: 1.25rem;
width: 3.4rem;
height: 3.4rem;
border-radius: 50%;
background: #25D366;
color: #fff;
display: flex;
align-items: center;
justify-content: center;
box-shadow: 0 8px 20px rgba(0,0,0,0.25);
z-index: 60;
transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.06); }

/* Responsive: tablet y desktop */
@media (min-width: 640px) {
.hero__titulo { font-size: 2.6rem; }
.site-footer__inner { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 960px) {
.seccion__titulo { font-size: 2.1rem; }
.hero__titulo { font-size: 3.2rem; }
section { padding: 5rem 0; }
}
/* Logo del header: evita que una imagen sin optimizar rompa el layout */
.site-header__logo img { max-height: 42px; width: auto; display: block; }
.site-header__logo { display: flex; align-items: center; }