/* ==========================================================================
   CERÂMICA KINATTO — Design System
   Paleta: pátio de olaria — argila queimada, navy do aço, areia de forno
   ========================================================================== */

:root {
  /* Cores */
  --navy: #0f2540;
  --navy-deep: #0a1a2e;
  --navy-soft: #1c3a5e;
  --clay: #a63d2b;
  --clay-deep: #832f21;
  --kiln: #f47920;
  --kiln-light: #ff9640;
  --sand: #ece4d6;
  --sand-deep: #ddd0b7;
  --paper: #faf7f2;
  --charcoal: #211b16;
  --charcoal-soft: #4a4038;
  --line: #d9cdb8;
  --white: #ffffff;

  /* Tipografia */
  --f-display: "Archivo Black", "Barlow Condensed", sans-serif;
  --f-heading: "Barlow Condensed", sans-serif;
  --f-body: "Barlow", sans-serif;
  --f-mono: "JetBrains Mono", monospace;

  /* Espaçamento */
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(3.5rem, 9vw, 7.5rem);
  --radius: 2px;

  --shadow-soft: 0 10px 30px -12px rgba(15, 37, 64, 0.25);
  --shadow-hard: 6px 6px 0 rgba(15, 37, 64, 1);
}

/* ---------------------------------- reset --------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-body);
  color: var(--charcoal);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 3px solid var(--kiln);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clay);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  margin-bottom: 1rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--kiln);
  display: inline-block;
}

h2.section-title {
  font-family: var(--f-heading);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 0.98;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--charcoal-soft);
  max-width: 46ch;
  line-height: 1.6;
  margin-top: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--f-heading);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.95rem 1.7rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn-primary {
  background: var(--kiln);
  color: var(--white);
  box-shadow: var(--shadow-hard);
}
.btn-primary:hover { transform: translate(-3px, -3px); box-shadow: 9px 9px 0 rgba(15,37,64,1); }
.btn-ghost {
  border-color: var(--navy);
  color: var(--navy);
}
.btn-ghost:hover { background: var(--navy); color: var(--white); }
.btn-ghost.on-dark { border-color: rgba(255,255,255,0.5); color: var(--white); }
.btn-ghost.on-dark:hover { background: var(--white); color: var(--navy); }
.btn svg { width: 18px; height: 18px; }

/* ------------------------------ brick divider ----------------------------- */
/* Signature motif: running-bond coursing, the literal pattern of bricklaying,
   used as the seam between every section instead of a plain hairline. */
.brick-seam {
  height: 22px;
  width: 100%;
  background-image:
    repeating-linear-gradient(90deg,
      transparent 0, transparent calc(64px - 3px), rgba(15,37,64,0.14) calc(64px - 3px), rgba(15,37,64,0.14) 64px),
    repeating-linear-gradient(90deg,
      transparent 0, transparent calc(64px - 3px), rgba(15,37,64,0.14) calc(64px - 3px), rgba(15,37,64,0.14) 64px);
  background-position: 0 0, 32px 11px;
  background-size: 64px 11px, 64px 11px;
  background-color: var(--sand-deep);
}
.brick-seam.dark {
  background-color: var(--navy-deep);
  background-image:
    repeating-linear-gradient(90deg,
      transparent 0, transparent calc(64px - 3px), rgba(244,121,32,0.35) calc(64px - 3px), rgba(244,121,32,0.35) 64px),
    repeating-linear-gradient(90deg,
      transparent 0, transparent calc(64px - 3px), rgba(244,121,32,0.35) calc(64px - 3px), rgba(244,121,32,0.35) 64px);
  background-position: 0 0, 32px 11px;
  background-size: 64px 11px, 64px 11px;
}

/* ---------------------------------- header --------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  gap: 1rem;
}
.brand { display: flex; align-items: center; }
.brand img { height: 46px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 2.1rem; }
.main-nav a {
  font-family: var(--f-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: var(--navy);
  position: relative;
  padding: 0.3rem 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--kiln);
  transition: width 0.2s ease;
}
.main-nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 1.1rem; }
.phone-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--f-mono);
  font-size: 0.92rem;
  color: var(--navy);
}
.phone-link svg { width: 18px; height: 18px; color: var(--kiln); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 8px; right: 8px;
  height: 2px;
  background: var(--navy);
  transition: transform 0.25s ease, opacity 0.2s ease, top 0.25s ease;
}
.nav-toggle span { top: 19px; }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* ---------------------------------- hero --------------------------------- */
.hero {
  position: relative;
  background: var(--navy-deep);
  color: var(--white);
  overflow: hidden;
  padding-top: clamp(3.5rem, 9vw, 6.5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.hero-brick-bg {
  position: absolute;
  inset: 0;
  opacity: 0.16;
  background-image:
    repeating-linear-gradient(90deg, transparent 0, transparent calc(140px - 4px), rgba(255,255,255,0.9) calc(140px - 4px), rgba(255,255,255,0.9) 140px),
    repeating-linear-gradient(0deg, transparent 0, transparent calc(56px - 4px), rgba(255,255,255,0.9) calc(56px - 4px), rgba(255,255,255,0.9) 56px);
  background-size: 140px 56px, 140px 56px;
  background-position: 0 0, 70px 0;
  mask-image: linear-gradient(180deg, black, transparent 92%);
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-copy .eyebrow { color: var(--kiln-light); }
.hero-copy .eyebrow::before { background: var(--kiln-light); }
.hero-title {
  font-family: var(--f-display);
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.hero-title .accent { color: var(--kiln); }
.hero-sub {
  margin-top: 1.4rem;
  font-size: 1.12rem;
  line-height: 1.65;
  max-width: 46ch;
  color: rgba(255,255,255,0.82);
}
.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-stats {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: clamp(1.5rem, 4vw, 3rem);
}
.hero-stats .stat-num {
  font-family: var(--f-mono);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--kiln-light);
}
.hero-stats .stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.6);
  margin-top: 0.2rem;
}

/* hero brick stack illustration */
.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brick-stack {
  display: grid;
  gap: 8px;
  transform: rotate(-6deg);
}
.brick-row { display: flex; gap: 8px; }
.brick-row.offset { margin-left: 34px; }
.brick-unit {
  width: 68px;
  height: 34px;
  border-radius: 3px;
  box-shadow: inset 0 -6px 0 rgba(0,0,0,0.18), 0 6px 14px rgba(0,0,0,0.3);
}
.brick-unit.c1 { background: var(--clay); }
.brick-unit.c2 { background: var(--kiln); }
.brick-unit.c3 { background: #c96a4a; }

/* ------------------------------- stats strip ------------------------------ */
.stats-strip {
  background: var(--sand);
  border-bottom: 1px solid var(--line);
}
.stats-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 5vw, 4rem);
  padding-top: 2.4rem;
  padding-bottom: 2.4rem;
}
.stat-block { flex: 1 1 160px; }
.stat-block .n {
  font-family: var(--f-mono);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  color: var(--navy);
}
.stat-block .n span { color: var(--kiln); }
.stat-block .l {
  font-size: 0.85rem;
  color: var(--charcoal-soft);
  margin-top: 0.3rem;
  max-width: 22ch;
}

/* ---------------------------------- about --------------------------------- */
.about {
  padding: var(--section-y) 0;
}
.about .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.about-art {
  position: relative;
  aspect-ratio: 4/5;
  background: var(--navy);
  border-radius: var(--radius);
  overflow: hidden;
}
.about-art .kiln-illustration { width: 100%; height: 100%; }
.about-list {
  margin-top: 1.8rem;
  display: grid;
  gap: 1rem;
}
.about-list li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  font-size: 0.98rem;
  color: var(--charcoal-soft);
  line-height: 1.5;
}
.about-list svg { flex: none; width: 20px; height: 20px; color: var(--kiln); margin-top: 2px; }

/* --------------------------------- products -------------------------------- */
.products { padding: var(--section-y) 0; background: var(--sand); }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: clamp(2rem, 5vw, 3.2rem);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
.product-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); }
.product-swatch {
  height: 170px;
  position: relative;
  overflow: hidden;
}
.product-body { padding: 1.5rem; }
.product-body h3 {
  font-family: var(--f-heading);
  font-size: 1.4rem;
  text-transform: uppercase;
  color: var(--navy);
  font-weight: 700;
}
.product-body p {
  margin-top: 0.5rem;
  font-size: 0.92rem;
  color: var(--charcoal-soft);
  line-height: 1.55;
}
.product-specs {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line);
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--clay-deep);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}

/* running-bond swatch patterns, one per product family */
.swatch-1 { background-color: var(--clay);
  background-image: repeating-linear-gradient(90deg, transparent 0 46px, rgba(0,0,0,0.16) 46px 49px), repeating-linear-gradient(0deg, transparent 0 22px, rgba(0,0,0,0.16) 22px 25px);
  background-position: 0 0, 23px 0;
}
.swatch-2 { background-color: var(--kiln);
  background-image: repeating-linear-gradient(90deg, transparent 0 60px, rgba(0,0,0,0.14) 60px 63px), repeating-linear-gradient(0deg, transparent 0 30px, rgba(0,0,0,0.14) 30px 33px);
  background-position: 0 0, 30px 0;
}
.swatch-3 { background-color: var(--navy-soft);
  background-image: repeating-linear-gradient(90deg, transparent 0 36px, rgba(255,255,255,0.12) 36px 38px), repeating-linear-gradient(0deg, transparent 0 36px, rgba(255,255,255,0.12) 36px 38px);
}

/* --------------------------------- process --------------------------------- */
.process { padding: var(--section-y) 0; background: var(--navy-deep); color: var(--white); }
.process .eyebrow { color: var(--kiln-light); }
.process .eyebrow::before { background: var(--kiln-light); }
.process .section-title { color: var(--white); }
.process-track {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.12);
}
.process-step {
  background: var(--navy-deep);
  padding: 2rem 1.4rem;
  position: relative;
}
.process-step .step-n {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--kiln-light);
}
.process-step h4 {
  margin-top: 1.6rem;
  font-family: var(--f-heading);
  text-transform: uppercase;
  font-size: 1.15rem;
  font-weight: 700;
}
.process-step p {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.65);
}
.process-step::after {
  content: "";
  position: absolute;
  right: -1px; top: 2rem; bottom: 2rem;
  width: 1px;
  background: rgba(255,255,255,0.12);
}
.process-step:last-child::after { display: none; }

/* -------------------------------- differentials ----------------------------- */
.differentials { padding: var(--section-y) 0; }
.diff-grid {
  margin-top: clamp(2rem, 5vw, 3.2rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.diff-card {
  padding: 1.9rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.diff-card svg { width: 34px; height: 34px; color: var(--kiln); }
.diff-card h4 {
  margin-top: 1.1rem;
  font-family: var(--f-heading);
  text-transform: uppercase;
  font-size: 1.15rem;
  color: var(--navy);
  font-weight: 700;
}
.diff-card p {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--charcoal-soft);
  line-height: 1.55;
}

/* --------------------------------- gallery --------------------------------- */
.gallery { padding: var(--section-y) 0; background: var(--sand); }
.gallery-grid {
  margin-top: clamp(2rem, 5vw, 3.2rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 130px;
  gap: 10px;
}
.gallery-grid > div:nth-child(1) { grid-column: span 2; grid-row: span 2; }
.gallery-grid > div:nth-child(4) { grid-row: span 2; }
.gallery-grid > div:nth-child(6) { grid-column: span 2; }
.gtile {
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

/* ------------------------------- testimonial -------------------------------- */
.testimonial { padding: var(--section-y) 0; }
.testimonial-card {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  padding: clamp(2.5rem, 6vw, 4rem);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.testimonial-mark {
  font-family: var(--f-display);
  font-size: 5rem;
  color: var(--kiln);
  line-height: 0.6;
}
.testimonial-quote {
  font-family: var(--f-heading);
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.4;
}
.testimonial-name {
  margin-top: 1.4rem;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

/* --------------------------------- contact ---------------------------------- */
.contact { padding: var(--section-y) 0; background: var(--sand); }
.contact .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 4rem);
}
.contact-info-list { margin-top: 2rem; display: grid; gap: 1.4rem; }
.contact-info-list li { display: flex; gap: 0.9rem; align-items: flex-start; }
.contact-info-list svg { width: 22px; height: 22px; color: var(--kiln); flex: none; margin-top: 2px; }
.contact-info-list .label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--charcoal-soft); }
.contact-info-list .val { font-family: var(--f-heading); font-size: 1.05rem; color: var(--navy); font-weight: 600; }

.contact-form {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 2.6rem);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--charcoal-soft);
  margin-bottom: 0.4rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 0.78rem 0.9rem;
  font-size: 0.95rem;
  border-radius: var(--radius);
  color: var(--charcoal);
  transition: border-color 0.15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--kiln);
  outline: none;
}
.field textarea { resize: vertical; min-height: 100px; }
.form-msg {
  margin-top: 1rem;
  font-size: 0.9rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  display: none;
}
.form-msg.show { display: block; }
.form-msg.ok { background: rgba(52,168,83,0.12); color: #1e7e34; }

/* --------------------------------- footer ----------------------------------- */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,0.75); }
.footer-top {
  padding: clamp(2.5rem, 6vw, 4rem) 0 2.5rem;
  display: grid;
  grid-template-columns: 1.3fr 0.7fr 0.7fr 1fr;
  gap: 2.5rem;
}
.footer-brand img { height: 40px; }
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.55);
  max-width: 32ch;
}
.footer-col h5 {
  font-family: var(--f-heading);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--kiln-light);
  margin-bottom: 1rem;
}
.footer-col ul { display: grid; gap: 0.65rem; }
.footer-col a { font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.footer-col a:hover { color: var(--white); }
.footer-social { display: flex; gap: 0.8rem; margin-top: 1rem; }
.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.footer-social svg { width: 16px; height: 16px; }
.footer-social a:hover { background: var(--kiln); border-color: var(--kiln); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 1.4rem 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
}

/* --------------------------------- back to top -------------------------------- */
.back-to-top {
  position: fixed;
  right: 1.6rem;
  bottom: 1.6rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--kiln);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 90;
  border: none;
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; }

/* --------------------------------- reveal anim -------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

.brick-seam .brick-fall { display: none; } /* placeholder hook, no-op */

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(3, 1fr); }
  .process-step:nth-child(3)::after { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .header-actions .phone-link { display: none; }
  .nav-toggle { display: block; }
  .hero .container, .about .container, .contact .container {
    grid-template-columns: 1fr;
  }
  .hero-art { order: -1; max-width: 320px; margin: 0 auto; }
  .about-art { max-width: 420px; margin: 0 auto; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid > div:nth-child(1) { grid-column: span 2; grid-row: span 1; }
  .testimonial-card { grid-template-columns: 1fr; text-align: left; }
  .testimonial-mark { display: none; }

  .site-header.mobile-open .main-nav {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.2rem var(--gutter) 1.6rem;
    border-bottom: 1px solid var(--line);
    gap: 1.1rem;
  }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; }
  .process-step::after { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 110px; }
  .hero-stats { grid-template-columns: repeat(3, auto); gap: 1.4rem; }
}