/* ============================================================
   MODULAB — Soluciones Modulares
   ============================================================ */

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

:root {
    --black:      #0d0d0d;
    --anthracite: #0d0d0d;
    --green:      #2b3323;
    --cream:      #f3ede3;
    --warm:       #c4956a;
    --white:      #ffffff;
    --muted:      rgba(255,255,255,.5);
    --border:     rgba(255,255,255,.1);

    --font: 'Outfit', -apple-system, sans-serif;

    --ease: .35s cubic-bezier(.25,.46,.45,.94);
    --max: 1380px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    background: var(--black);
    color: var(--cream);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

/* ---- SHARED HELPERS ---- */
.wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 2rem;
}

.eyebrow {
    font-size: .68rem;
    font-weight: 500;
    letter-spacing: .25em;
    text-transform: uppercase;
    color: rgba(255,255,255,.35);
    margin-bottom: 1.25rem;
}
.eyebrow-warm  { color: var(--warm); }
.eyebrow-light { color: rgba(255,255,255,.32); }

.s-head { margin-bottom: 4rem; }

.s-title {
    font-size: clamp(2.2rem, 4.5vw, 3.8rem);
    font-weight: 300;
    line-height: 1.1;
    color: var(--black);
    letter-spacing: -.02em;
}
.s-title-light { color: var(--white); }

/* ---- SCROLL ANIMATIONS ---- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity .75s var(--ease), transform .75s var(--ease);
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    padding: 1.6rem 0;
    transition: background var(--ease), padding var(--ease), border-color var(--ease);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(13,13,13,.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 1rem 0;
    border-color: var(--border);
}

.nav-inner {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-logo {
    font-size: .9rem;
    font-weight: 700;
    letter-spacing: .28em;
    color: var(--white);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 2.25rem;
    flex: 1;
}
.nav-links a {
    font-size: .7rem;
    font-weight: 500;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: rgba(255,255,255,.6);
    transition: color var(--ease);
}
.nav-links a:hover { color: var(--white); }

.btn-nav {
    margin-left: auto;
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--black);
    background: var(--cream);
    padding: .55rem 1.4rem;
    border-radius: 2px;
    flex-shrink: 0;
    transition: background var(--ease), color var(--ease);
}
.btn-nav:hover { background: var(--warm); color: var(--white); }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--white);
    border-radius: 1px;
    transition: transform var(--ease), opacity var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 620px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('../Fotos cotizacion/d151b4dd-3f27-43bf-99f6-20ce47e2b91c.jpg') center/cover no-repeat;
    transform: scale(1.06);
    will-change: transform;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        125deg,
        rgba(8,8,8,.82) 0%,
        rgba(8,8,8,.52) 55%,
        rgba(8,8,8,.35) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--max);
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    padding-top: 90px;
}

.hero-title {
    font-size: clamp(4.5rem, 12vw, 11rem);
    font-weight: 200;
    line-height: .9;
    letter-spacing: -.03em;
    color: var(--white);
    margin-bottom: 2rem;
}

.hero-sub {
    font-size: clamp(.88rem, 1.4vw, 1.05rem);
    font-weight: 300;
    color: rgba(255,255,255,.68);
    max-width: 440px;
    line-height: 1.75;
    margin-bottom: 2.75rem;
}

.hero-btns { display: flex; gap: .875rem; flex-wrap: wrap; }

.btn-primary {
    display: inline-block;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--black);
    background: var(--cream);
    padding: .9rem 2.25rem;
    border-radius: 2px;
    transition: background var(--ease), color var(--ease);
}
.btn-primary:hover { background: var(--warm); color: var(--white); }

.btn-ghost {
    display: inline-block;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--white);
    border: 1px solid rgba(255,255,255,.38);
    padding: .9rem 2.25rem;
    border-radius: 2px;
    transition: border-color var(--ease), background var(--ease);
}
.btn-ghost:hover { border-color: var(--white); background: rgba(255,255,255,.08); }

.scroll-cue {
    position: absolute;
    bottom: 2.75rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .45rem;
    color: rgba(255,255,255,.38);
    font-size: .58rem;
    letter-spacing: .2em;
    text-transform: uppercase;
}

.scroll-bar {
    width: 1px;
    height: 44px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,.45));
    animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: .3; transform: scaleY(.7); }
    50%       { opacity: 1;  transform: scaleY(1); }
}

/* ============================================================
   INTRO
   ============================================================ */
.intro {
    background: var(--anthracite);
    padding: 8rem 0;
}

.intro-headline {
    font-size: clamp(2.4rem, 5.5vw, 4.8rem);
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -.02em;
    color: var(--white);
    margin-bottom: 5rem;
    max-width: 780px;
}

.pillars {
    display: flex;
    gap: 0;
    border-top: 1px solid var(--border);
    padding-top: 3rem;
}

.pillar {
    flex: 1;
    padding-right: 2.5rem;
}

.pillar-line {
    width: 1px;
    background: var(--border);
    margin: 0 2.5rem;
    flex-shrink: 0;
}

.pill-n {
    font-size: 1.8rem;
    font-weight: 300;
    color: var(--warm);
    display: block;
    margin-bottom: 1rem;
    line-height: 1;
}

.pillar h3 {
    font-size: .92rem;
    font-weight: 500;
    color: var(--white);
    letter-spacing: .02em;
    margin-bottom: .65rem;
}

.pillar p {
    font-size: .82rem;
    font-weight: 300;
    color: rgba(255,255,255,.48);
    line-height: 1.8;
}

/* ============================================================
   MODELOS
   ============================================================ */
.modelos {
    background: var(--cream);
    padding: 8rem 0;
}

.modelos .s-title  { color: var(--black); }
.modelos .eyebrow  { color: rgba(0,0,0,.32); }

.cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
}

.card {
    background: var(--white);
    border-radius: 3px;
    overflow: hidden;
    transition: transform var(--ease), box-shadow var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: 0 24px 64px rgba(0,0,0,.12); }

/* ---- Image fill fix ---- */
.card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}
.card-img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform .65s var(--ease);
}
.card:hover .card-img img { transform: scale(1.05); }

.badge {
    position: absolute;
    top: 1.1rem;
    left: 1.1rem;
    font-size: .58rem;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    background: var(--green);
    color: var(--white);
    padding: .32rem .8rem;
    border-radius: 2px;
    z-index: 1;
}
.badge-soon {
    background: rgba(10,10,10,.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.card-body { padding: 2rem; }

.card-meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: .65rem;
    flex-wrap: wrap;
}

.card-meta h3 {
    font-size: 1.75rem;
    font-weight: 300;
    color: var(--black);
    letter-spacing: -.02em;
}

.card-size {
    font-size: .65rem;
    font-weight: 500;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: #999;
    white-space: nowrap;
}

.card-body > p {
    font-size: .83rem;
    font-weight: 300;
    color: #555;
    line-height: 1.8;
    margin-bottom: 1.75rem;
}

.btn-card {
    display: inline-block;
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--white);
    background: var(--green);
    padding: .72rem 1.7rem;
    border-radius: 2px;
    transition: background var(--ease);
}
.btn-card:hover { background: var(--black); }

.btn-card-out {
    background: var(--green);
    color: var(--white);
    border: none;
}
.btn-card-out:hover { background: var(--black); }

/* ============================================================
   MATERIALES
   ============================================================ */
.materiales {
    background: var(--black);
    padding: 8rem 0;
}

.mats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
}

.mat { display: flex; flex-direction: column; gap: 1.25rem; }

/* ---- Image fill fix ---- */
.mat-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3 / 4;
    border-radius: 2px;
}
.mat-img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform .65s var(--ease);
}
.mat:hover .mat-img img { transform: scale(1.06); }

.mat-info {
    display: flex;
    gap: .9rem;
    align-items: flex-start;
}

.mat-n {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--warm);
    flex-shrink: 0;
    line-height: 1.3;
}

.mat-info h4 {
    font-size: .82rem;
    font-weight: 500;
    color: var(--white);
    margin-bottom: .3rem;
    letter-spacing: .02em;
}

.mat-info p {
    font-size: .76rem;
    font-weight: 300;
    color: rgba(255,255,255,.42);
    line-height: 1.7;
}

/* ============================================================
   GALERÍA
   ============================================================ */
.galeria {
    background: var(--cream);
    padding: 8rem 0 6rem;
}

.galeria .s-title  { color: var(--black); }
.galeria .eyebrow  { color: rgba(0,0,0,.32); }
.galeria .s-head   { margin-bottom: 3rem; }

.gal-grid {
    columns: 3;
    column-gap: 6px;
    margin-top: 2rem;
}

.gal-item {
    break-inside: avoid;
    margin-bottom: 6px;
    overflow: hidden;
    display: block;
}

.gal-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform .65s var(--ease);
}

.gal-item:hover img { transform: scale(1.04); }

/* ============================================================
   PROCESO
   ============================================================ */
.proceso {
    background: var(--anthracite);
    padding: 8rem 0;
}

.steps {
    margin-top: 4rem;
    border-top: 1px solid rgba(255,255,255,.15);
}

.step {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 2rem;
    padding: 2.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,.1);
    align-items: start;
}

.step-n {
    font-size: 2.2rem;
    font-weight: 200;
    color: rgba(255,255,255,.2);
    line-height: 1;
    letter-spacing: -.02em;
}

.step-body h3 {
    font-size: 1.9rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: .65rem;
    line-height: 1.1;
    letter-spacing: -.02em;
}

.step-body p {
    font-size: .85rem;
    font-weight: 300;
    color: rgba(255,255,255,.58);
    line-height: 1.85;
    max-width: 580px;
}

/* Fotos del proceso */
.proc-imgs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 4rem;
}

.proc-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    border-radius: 2px;
}

.proc-img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .65s var(--ease);
}

.proc-img:hover img { transform: scale(1.04); }

.proc-cap {
    position: absolute;
    bottom: .9rem;
    left: .9rem;
    font-size: .58rem;
    font-weight: 500;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: rgba(255,255,255,.9);
    background: rgba(0,0,0,.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: .32rem .75rem;
    border-radius: 2px;
}

/* ============================================================
   CONTACTO
   ============================================================ */
.contacto {
    position: relative;
    min-height: 82vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.contacto-bg {
    position: absolute;
    inset: 0;
    background: url('../Fotos cotizacion/IMG_8631.jpg') center 40%/cover no-repeat;
}

.contacto-overlay {
    position: absolute;
    inset: 0;
    background: rgba(6,6,6,.76);
}

.contacto-inner {
    position: relative;
    z-index: 2;
    max-width: var(--max);
    width: 100%;
    margin: 0 auto;
    padding: 6rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.contacto-title {
    font-size: clamp(2.8rem, 5.5vw, 5.5rem);
    font-weight: 200;
    line-height: .92;
    letter-spacing: -.03em;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.contacto-sub {
    font-size: .95rem;
    font-weight: 300;
    color: rgba(255,255,255,.6);
    margin: 0 auto 3rem;
    max-width: 400px;
    line-height: 1.8;
}

.contacto-btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn-wa {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--white);
    background: #25D366;
    padding: .95rem 2rem;
    border-radius: 2px;
    transition: background var(--ease);
}
.btn-wa:hover { background: #1bb655; }

.btn-mail {
    font-size: .82rem;
    font-weight: 400;
    color: rgba(255,255,255,.52);
    border-bottom: 1px solid rgba(255,255,255,.28);
    padding-bottom: 2px;
    transition: color var(--ease), border-color var(--ease);
}
.btn-mail:hover { color: var(--white); border-color: var(--white); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--black);
    border-top: 1px solid rgba(255,255,255,.07);
    padding: 3.5rem 2rem 2rem;
}

.footer-inner {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
    margin-bottom: 1.5rem;
}

.footer-wordmark {
    display: block;
    font-size: .92rem;
    font-weight: 700;
    letter-spacing: .28em;
    color: var(--white);
    margin-bottom: .3rem;
}

.footer-tagline {
    font-size: .62rem;
    font-weight: 300;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: rgba(255,255,255,.32);
}

.footer-nav {
    display: flex;
    gap: 1.75rem;
    justify-content: center;
}
.footer-nav a {
    font-size: .65rem;
    font-weight: 500;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: rgba(255,255,255,.38);
    transition: color var(--ease);
}
.footer-nav a:hover { color: var(--white); }

.footer-social { display: flex; justify-content: flex-end; }

.ig-link {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .65rem;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.72);
    border: 1px solid rgba(255,255,255,.18);
    padding: .45rem .9rem;
    border-radius: 2px;
    transition: color var(--ease), border-color var(--ease);
}
.ig-link svg { color: var(--warm); }
.ig-link:hover { color: var(--white); border-color: rgba(255,255,255,.45); }

.footer-copy {
    font-size: .65rem;
    font-weight: 300;
    color: rgba(255,255,255,.2);
    text-align: center;
    letter-spacing: .08em;
    max-width: var(--max);
    margin: 0 auto;
}

/* ============================================================
   PREGUNTAS FRECUENTES
   ============================================================ */
.faq {
    background: var(--cream);
    padding: 8rem 0;
}

.faq .s-title  { color: var(--black); }
.faq .eyebrow  { color: rgba(0,0,0,.32); }

.faq-list {
    margin-top: 3rem;
    border-top: 1px solid rgba(0,0,0,.1);
}

.faq-item {
    border-bottom: 1px solid rgba(0,0,0,.1);
}

.faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem 0;
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--black);
    cursor: pointer;
    list-style: none;
    gap: 1.5rem;
    letter-spacing: -.01em;
    transition: color var(--ease);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { display: none; }

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 200;
    color: var(--warm);
    flex-shrink: 0;
    transition: transform var(--ease);
    line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item[open] summary { color: var(--green); }

.faq-item > p {
    padding: 0 3rem 1.75rem 0;
    font-size: .88rem;
    font-weight: 300;
    color: #666;
    line-height: 1.85;
    max-width: 680px;
}

/* ============================================================
   FORMULARIO COTIZACIÓN
   ============================================================ */
.cotiza-form-wrap {
    background: rgba(10,10,10,.42);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 4px;
    padding: 2.5rem;
}

.form-heading {
    font-size: .65rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--warm);
    margin-bottom: 1.75rem;
}

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

.form-group { margin-bottom: 1.25rem; }

.cotiza-form label {
    display: block;
    font-size: .6rem;
    font-weight: 500;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: rgba(255,255,255,.4);
    margin-bottom: .5rem;
}

.cotiza-form input,
.cotiza-form select,
.cotiza-form textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,.2);
    padding: .6rem 0;
    color: var(--white);
    font-family: var(--font);
    font-size: .88rem;
    font-weight: 300;
    outline: none;
    transition: border-color var(--ease);
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
}
.cotiza-form input:focus,
.cotiza-form select:focus,
.cotiza-form textarea:focus { border-color: var(--warm); }

.cotiza-form input::placeholder,
.cotiza-form textarea::placeholder { color: rgba(255,255,255,.22); }

.cotiza-form select { cursor: pointer; }
.cotiza-form select option { background: #111; color: var(--white); }

.cotiza-form textarea { resize: vertical; min-height: 90px; }

.btn-submit {
    width: 100%;
    margin-top: .75rem;
    padding: .95rem;
    background: var(--cream);
    color: var(--black);
    font-family: var(--font);
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: background var(--ease), color var(--ease);
}
.btn-submit:hover { background: var(--warm); color: var(--white); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .mats {
        grid-template-columns: repeat(2, 1fr);
    }

    .gal-grid { columns: 2; }

    .proc-imgs { grid-template-columns: 1fr; }

    .contacto-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-social { justify-content: center; }
    .footer-nav    { justify-content: center; }
}

@media (max-width: 768px) {

    /* Hero — reducir altura para que la imagen landscape se vea mejor */
    .hero { height: 52vh; min-height: 400px; }
    .hero-bg {
        background-position: center center;
        background-size: cover;
        transform: scale(1) !important;
        will-change: auto;
    }

    /* Navbar */
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(13,13,13,.98);
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.open { display: flex; }
    .nav-links a { font-size: .85rem; }
    .btn-nav   { display: none; }
    .hamburger { display: flex; }

    /* Padding de secciones */
    .intro, .modelos, .materiales, .proceso, .faq { padding: 5rem 0; }
    .galeria { padding: 5rem 0 3rem; }

    /* Hero */
    .hero-title { font-size: clamp(2.8rem, 11vw, 5rem); }
    .hero-content { padding-top: 70px; }
    .hero-sub { margin-bottom: 1.75rem; }
    .hero-btns { flex-direction: row; flex-wrap: wrap; gap: .6rem; }
    .btn-primary, .btn-ghost { padding: .75rem 1.4rem; font-size: .65rem; }

    /* Intro */
    .intro-headline { font-size: clamp(2rem, 8vw, 3rem); margin-bottom: 3rem; }
    .pillars { flex-direction: column; gap: 2.5rem; }
    .pillar-line { width: 100%; height: 1px; margin: 0; }
    .pillar { padding-right: 0; }

    /* Modelos */
    .cards { grid-template-columns: 1fr; }

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

    /* Galería — columnas masonry, sin conflicto de grid */
    .gal-grid { columns: 2; }

    /* Proceso */
    .step { grid-template-columns: 52px 1fr; gap: 1.25rem; }
    .step-body h3 { font-size: 1.5rem; }

    /* FAQ */
    .faq-item summary { font-size: .95rem; padding: 1.4rem 0; }

    /* Contacto */
    .contacto { min-height: auto; }
    .contacto-inner { padding: 4rem 1.5rem; gap: 2.5rem; }
    .contacto-btns { flex-direction: column; align-items: flex-start; }
    .btn-wa, .btn-mail { width: 100%; text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
    /* Padding mínimo */
    .intro, .modelos, .materiales, .proceso, .faq { padding: 4rem 0; }
    .galeria { padding: 4rem 0 2rem; }
    .s-head { margin-bottom: 2.5rem; }

    /* Materiales — 2 columnas igual que galería */
    .mats { grid-template-columns: repeat(2, 1fr); }
    .mat-info h4 { font-size: .75rem; }
    .mat-info p  { font-size: .68rem; }
    .gal-grid { columns: 2; }

    /* Proceso fotos */
    .proc-imgs { grid-template-columns: 1fr; }

    /* Formulario */
    .form-row { grid-template-columns: 1fr; }
    .cotiza-form-wrap { padding: 1.75rem 1.25rem; }

    /* Footer */
    .footer-nav { flex-wrap: wrap; gap: 1rem; justify-content: center; }
}