/* =====================================================================
   Autos Alvarado — Catálogo público
   Paleta tomada del logotipo: rojo #f80008 sobre negro.
   ===================================================================== */

:root {
    --rojo: #f80008;
    --rojo-osc: #c40006;
    --negro: #0a0a0a;
    --negro-2: #141414;
    --negro-3: #1e1e1e;
    --gris: #6b7280;
    --gris-claro: #9ca3af;
    --linea: #e5e7eb;
    --superficie: #f7f7f8;
    --blanco: #ffffff;
    --exito: #0a7d40;
    --sombra: 0 4px 20px rgba(0, 0, 0, .08);
    --sombra-fuerte: 0 12px 40px rgba(0, 0, 0, .16);
    --radio: 10px;
}

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

body {
    font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif;
    color: var(--negro);
    background: var(--blanco);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .display {
    font-family: 'Barlow Condensed', 'Inter', sans-serif;
    font-weight: 700;
    letter-spacing: .01em;
    line-height: 1.15;
    text-transform: uppercase;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------------- Encabezado ---------------- */
.site-header {
    background: var(--negro);
    position: sticky; top: 0; z-index: 100;
    border-bottom: 3px solid var(--rojo);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 20px; padding-top: 12px; padding-bottom: 12px;
}
.brand-logo { height: 46px; width: auto; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a {
    color: var(--blanco); font-weight: 600; font-size: .93rem;
    letter-spacing: .02em; transition: color .15s; white-space: nowrap;
}
.site-nav a:hover { color: var(--rojo); }
.site-nav .btn-wa {
    background: var(--rojo); color: var(--blanco);
    padding: 9px 20px; border-radius: 6px; font-weight: 700;
}
.site-nav .btn-wa:hover { background: var(--rojo-osc); color: var(--blanco); }

.nav-toggle {
    display: none; background: none; border: 0; cursor: pointer;
    width: 30px; height: 24px; position: relative;
}
.nav-toggle span {
    display: block; height: 3px; background: var(--blanco);
    border-radius: 2px; margin: 4px 0; transition: .25s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
    background: linear-gradient(rgba(10,10,10,.9), rgba(10,10,10,.94)),
                repeating-linear-gradient(115deg, #1a1a1a 0 2px, #0f0f0f 2px 26px);
    color: var(--blanco); padding: 68px 0 56px; text-align: center;
}
.hero h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); margin-bottom: 12px; }
.hero h1 em { color: var(--rojo); font-style: normal; }
.hero p { color: #d1d5db; font-size: 1.05rem; max-width: 620px; margin: 0 auto 26px; }

.hero-stats {
    display: flex; justify-content: center; gap: 44px; flex-wrap: wrap; margin-top: 34px;
}
.hero-stats .st .n {
    font-family: 'Barlow Condensed', sans-serif; font-size: 2.3rem;
    font-weight: 700; color: var(--rojo); line-height: 1;
}
.hero-stats .st .l {
    font-size: .76rem; text-transform: uppercase; letter-spacing: 1.4px;
    color: var(--gris-claro); margin-top: 4px;
}

/* ---------------- Filtros ---------------- */
.filtros {
    background: var(--superficie); border-bottom: 1px solid var(--linea);
    padding: 18px 0;
}
.filtros form {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto; gap: 10px; align-items: end;
}
.campo label {
    display: block; font-size: .7rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .6px; color: var(--gris); margin-bottom: 5px;
}
.campo input, .campo select {
    width: 100%; font-family: inherit; font-size: .92rem; padding: 9px 11px;
    border: 1px solid var(--linea); border-radius: 7px; background: var(--blanco);
    color: var(--negro);
}
.campo input:focus, .campo select:focus {
    outline: none; border-color: var(--rojo); box-shadow: 0 0 0 3px rgba(248,0,8,.12);
}

.btn {
    display: inline-block; font-family: inherit; font-size: .92rem; font-weight: 700;
    padding: 10px 22px; border: 0; border-radius: 7px; cursor: pointer;
    background: var(--rojo); color: var(--blanco); transition: background .15s, transform .15s;
    text-align: center;
}
.btn:hover { background: var(--rojo-osc); transform: translateY(-1px); }
.btn.ghost { background: transparent; border: 1.5px solid var(--linea); color: var(--negro); }
.btn.ghost:hover { border-color: var(--rojo); color: var(--rojo); background: transparent; }
.btn.oscuro { background: var(--negro); }
.btn.oscuro:hover { background: var(--negro-3); }
.btn.grande { padding: 14px 32px; font-size: 1rem; }
.btn.bloque { display: block; width: 100%; }

/* ---------------- Rejilla de unidades ---------------- */
.seccion { padding: 44px 0; }
.seccion-head {
    display: flex; align-items: baseline; justify-content: space-between;
    gap: 16px; margin-bottom: 22px; flex-wrap: wrap;
}
.seccion-head h2 { font-size: 1.7rem; }
.seccion-head h2 em { color: var(--rojo); font-style: normal; }
.conteo { color: var(--gris); font-size: .9rem; }

.rejilla {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px;
}

.auto-card {
    background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio);
    overflow: hidden; transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column;
}
.auto-card:hover { transform: translateY(-4px); box-shadow: var(--sombra-fuerte); }

.auto-foto { position: relative; aspect-ratio: 16/10; background: var(--negro-2); overflow: hidden; }
.auto-foto img { width: 100%; height: 100%; object-fit: cover; }

.etiquetas { position: absolute; top: 10px; left: 10px; display: flex; gap: 6px; flex-wrap: wrap; }
.etq {
    font-size: .66rem; font-weight: 700; text-transform: uppercase; letter-spacing: .7px;
    padding: 4px 9px; border-radius: 4px; background: var(--negro); color: var(--blanco);
}
.etq.rojo { background: var(--rojo); }
.etq.apartada { background: #b45309; }
.etq.consigna { background: #1d4ed8; }

.auto-body { padding: 15px 17px 17px; display: flex; flex-direction: column; flex: 1; }
.auto-body h3 { font-size: 1.15rem; margin-bottom: 3px; }
.auto-body .version { font-size: .82rem; color: var(--gris); margin-bottom: 10px; min-height: 1.2em; }

.auto-specs {
    display: flex; flex-wrap: wrap; gap: 10px 14px; font-size: .8rem;
    color: var(--gris); padding: 10px 0; border-top: 1px solid var(--linea);
    border-bottom: 1px solid var(--linea); margin-bottom: 12px;
}
.auto-specs span { display: inline-flex; align-items: center; gap: 4px; }

.auto-precio {
    font-family: 'Barlow Condensed', sans-serif; font-size: 1.75rem; font-weight: 700;
    color: var(--negro); line-height: 1; margin-top: auto;
}
.auto-precio small { font-size: .72rem; color: var(--gris); font-weight: 500; display: block;
    font-family: 'Inter', sans-serif; text-transform: none; }
.auto-acciones { margin-top: 13px; }

.vacio {
    text-align: center; padding: 60px 20px; color: var(--gris);
    border: 2px dashed var(--linea); border-radius: var(--radio);
}
.vacio h3 { font-size: 1.3rem; color: var(--negro); margin-bottom: 8px; }

/* ---------------- Ficha de unidad ---------------- */
.ficha { padding: 30px 0 50px; }
.migas { font-size: .84rem; color: var(--gris); margin-bottom: 18px; }
.migas a:hover { color: var(--rojo); }

.ficha-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 34px; align-items: start; }

.galeria .principal {
    aspect-ratio: 16/10; background: var(--negro-2); border-radius: var(--radio);
    overflow: hidden; margin-bottom: 10px;
}
.galeria .principal img { width: 100%; height: 100%; object-fit: cover; }
.galeria .miniaturas { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.galeria .miniaturas img {
    aspect-ratio: 4/3; object-fit: cover; border-radius: 6px; cursor: pointer;
    border: 2px solid transparent; transition: border-color .15s;
}
.galeria .miniaturas img:hover, .galeria .miniaturas img.activa { border-color: var(--rojo); }

.ficha-info h1 { font-size: 2rem; margin-bottom: 4px; }
.ficha-info .sub { color: var(--gris); margin-bottom: 16px; }
.ficha-precio {
    font-family: 'Barlow Condensed', sans-serif; font-size: 2.9rem; font-weight: 700;
    color: var(--rojo); line-height: 1; margin-bottom: 6px;
}

.specs-tabla { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: .92rem; }
.specs-tabla th, .specs-tabla td { padding: 10px 0; border-bottom: 1px solid var(--linea); text-align: left; }
.specs-tabla th { color: var(--gris); font-weight: 500; width: 45%; }
.specs-tabla td { font-weight: 600; text-align: right; }

.caja-contacto {
    background: var(--superficie); border: 1px solid var(--linea);
    border-radius: var(--radio); padding: 20px; margin-top: 22px;
}
.caja-contacto h3 { font-size: 1.15rem; margin-bottom: 4px; }
.caja-contacto p.ayuda { font-size: .86rem; color: var(--gris); margin-bottom: 14px; }
.caja-contacto .campo { margin-bottom: 11px; }
.caja-contacto textarea {
    width: 100%; font-family: inherit; font-size: .92rem; padding: 9px 11px;
    border: 1px solid var(--linea); border-radius: 7px; resize: vertical; min-height: 70px;
}
.caja-contacto textarea:focus { outline: none; border-color: var(--rojo); }

.descripcion { margin: 26px 0; }
.descripcion h3 { font-size: 1.2rem; margin-bottom: 8px; }
.descripcion p { color: #374151; }

/* ---------------- Contenido general ---------------- */
.bloque-texto { max-width: 760px; margin: 0 auto; }
.bloque-texto h1 { font-size: 2.2rem; margin-bottom: 14px; }
.bloque-texto h1 em, .bloque-texto h2 em { color: var(--rojo); font-style: normal; }
.bloque-texto h2 { font-size: 1.4rem; margin: 28px 0 10px; }
.bloque-texto p { margin-bottom: 12px; color: #374151; }
.bloque-texto ul { margin: 12px 0 12px 22px; color: #374151; }
.bloque-texto li { margin: 6px 0; }
.bloque-texto li::marker { color: var(--rojo); }

.tarjetas-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin: 26px 0; }
.tarjeta {
    border: 1px solid var(--linea); border-radius: var(--radio); padding: 22px;
    background: var(--blanco);
}
.tarjeta .ico {
    width: 44px; height: 44px; border-radius: 9px; background: var(--rojo); color: var(--blanco);
    display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
    font-family: 'Barlow Condensed', sans-serif; font-weight: 700; margin-bottom: 12px;
}
.tarjeta h3 { font-size: 1.15rem; margin-bottom: 6px; }
.tarjeta p { font-size: .92rem; color: var(--gris); }

.cta-franja {
    background: var(--negro); color: var(--blanco); padding: 40px 0; text-align: center; margin-top: 40px;
}
.cta-franja h2 { font-size: 1.9rem; margin-bottom: 8px; }
.cta-franja h2 em { color: var(--rojo); font-style: normal; }
.cta-franja p { color: #d1d5db; margin-bottom: 20px; }

/* ---------------- Paginación ---------------- */
.paginador { display: flex; justify-content: center; gap: 6px; margin-top: 34px; }
.paginador a, .paginador .current {
    padding: 8px 14px; border: 1px solid var(--linea); border-radius: 6px;
    font-size: .9rem; font-weight: 600; color: var(--negro);
}
.paginador a:hover { border-color: var(--rojo); color: var(--rojo); }
.paginador .current { background: var(--rojo); border-color: var(--rojo); color: var(--blanco); }
.paginador .disabled { display: none; }

/* ---------------- Mensajes flash ---------------- */
.message {
    max-width: 1180px; margin: 14px auto; padding: 12px 18px; border-radius: 8px;
    font-size: .93rem; font-weight: 500;
}
.message.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.message.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }

/* ---------------- Pie ---------------- */
.site-footer { background: var(--negro); color: #d1d5db; padding: 42px 0 0; margin-top: 50px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; padding-bottom: 30px; }
.footer-logo { height: 44px; margin-bottom: 14px; }
.site-footer h4 {
    color: var(--blanco); font-size: 1rem; margin-bottom: 12px;
    padding-bottom: 7px; border-bottom: 2px solid var(--rojo); display: inline-block;
}
.site-footer p { font-size: .89rem; margin-bottom: 8px; }
.site-footer a:hover { color: var(--rojo); }
.footer-links { list-style: none; }
.footer-links li { margin: 6px 0; font-size: .89rem; }
.footer-bottom {
    border-top: 1px solid #262626; padding: 16px 20px; display: flex;
    justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .8rem; color: var(--gris);
}
.demo-note { color: #4b5563; }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
    .ficha-grid { grid-template-columns: 1fr; gap: 26px; }
    .filtros form { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 700px) {
    .nav-toggle { display: block; }
    .site-nav {
        position: absolute; top: 100%; left: 0; right: 0; background: var(--negro);
        flex-direction: column; align-items: stretch; gap: 0; padding: 0 20px;
        max-height: 0; overflow: hidden; transition: max-height .28s ease, padding .28s ease;
        border-bottom: 3px solid var(--rojo);
    }
    .site-nav.open { max-height: 320px; padding: 12px 20px 20px; }
    .site-nav a { padding: 12px 0; border-bottom: 1px solid #262626; }
    .site-nav .btn-wa { text-align: center; margin-top: 10px; border-bottom: 0; }
    .filtros form { grid-template-columns: 1fr; }
    .hero { padding: 44px 0 38px; }
    .hero-stats { gap: 28px; }
}