/* Sealpart — static B2B site
   Palette: ink #1a2b3c / accent #0f6e56. No gradients, no animation, system fonts. */

:root {
  --ink: #1a2b3c;
  --ink-2: #2f4256;
  --muted: #5b6b7a;
  --accent: #0f6e56;
  --accent-dark: #0b5544;
  --line: #e3e8ec;
  --soft: #f6f8f9;
  --white: #ffffff;
  --warn: #8a5a00;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-variant-numeric: tabular-nums;
}

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--ink);
  color: #cfd8e0;
  font-size: 13px;
  letter-spacing: .01em;
}
.topbar .wrap {
  display: flex;
  gap: 0 24px;
  flex-wrap: wrap;
  justify-content: flex-start;
  padding-top: 9px;
  padding-bottom: 9px;
}
.topbar span { white-space: nowrap; }
.topbar span::before {
  content: "";
  display: inline-block;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 7px;
  vertical-align: middle;
}

/* ---------- header ---------- */
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 50;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}
.brand {
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .14em;
  color: var(--ink);
  text-transform: uppercase;
}
.brand:hover { text-decoration: none; }
.brand small {
  display: block;
  font-size: 9.5px;
  letter-spacing: .18em;
  font-weight: 500;
  color: var(--muted);
  margin-top: -3px;
}
nav.main { display: flex; gap: 26px; font-size: 14.5px; }
nav.main a { color: var(--ink-2); }
nav.main a:hover { color: var(--accent); text-decoration: none; }
nav.main a[aria-current="page"] { color: var(--accent); font-weight: 600; }

.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 3px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.ghost:hover { background: var(--accent); color: #fff; }
.btn.lg { padding: 14px 26px; font-size: 15.5px; }

/* ---------- hero ---------- */
.hero { padding: 64px 0 40px; }
.hero .eyebrow {
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.15;
  letter-spacing: -.015em;
  margin: 0 0 18px;
  max-width: 20em;
  font-weight: 700;
}
.hero p.lead {
  font-size: 18px;
  color: var(--ink-2);
  max-width: 34em;
  margin: 0 0 28px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- size finder ---------- */
.finder {
  border: 1px solid var(--line);
  background: var(--soft);
  padding: 26px;
  margin: 36px 0 0;
}
.finder h2 {
  font-size: 16px;
  margin: 0 0 4px;
  letter-spacing: .01em;
}
.finder .hint { font-size: 13.5px; color: var(--muted); margin: 0 0 18px; }
.finder form { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.finder .field { flex: 1 1 140px; min-width: 0; }
.finder .field input { width: 100%; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: 15px;
  padding: 10px 12px;
  border: 1px solid #c8d2d9;
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
  width: 130px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid rgba(15,110,86,.25);
  border-color: var(--accent);
}
.result {
  margin-top: 18px;
  font-size: 15px;
  border-left: 3px solid var(--accent);
  padding: 2px 0 2px 14px;
  min-height: 26px;
}
.result .ok { font-weight: 600; }
.result ul { margin: 8px 0 0; padding-left: 20px; color: var(--ink-2); }
.result .note { color: var(--muted); font-size: 13.5px; }

/* ---------- trust strip ---------- */
.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-top: 48px;
}
.strip .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.strip .cell {
  padding: 22px 20px;
  border-right: 1px solid var(--line);
}
.strip .cell:last-child { border-right: 0; }
.strip .k { font-size: 24px; font-weight: 700; letter-spacing: -.01em; }
.strip .v { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* ---------- sections ---------- */
section { padding: 60px 0; }
section.tight { padding: 40px 0; }
section.soft { background: var(--soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

h2.sec {
  font-size: 13px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
  font-weight: 600;
}
h3.sec-title {
  font-size: 30px;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -.012em;
}
p.sec-sub { font-size: 16.5px; color: var(--ink-2); max-width: 42em; margin: 0 0 34px; }

/* ---------- cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card {
  border: 1px solid var(--line);
  background: #fff;
  display: flex;
  flex-direction: column;
}
.card .shot {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}
.card .shot img { width: 100%; height: 100%; object-fit: cover; }
.card .body { padding: 20px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.card h4 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0 0 14px; font-size: 14.5px; color: var(--ink-2); }
.card .meta {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: auto;
}
.card .meta b { color: var(--ink-2); font-weight: 600; }

/* ---------- feature list ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.feature h4 { margin: 0 0 6px; font-size: 16.5px; }
.feature p { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.feature .n {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--accent);
  font-weight: 700;
  display: block;
  margin-bottom: 8px;
}

/* ---------- evidence photos ---------- */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.shots figure { margin: 0; }
.shots .frame {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--soft);
  border: 1px solid var(--line);
}
.shots .frame img { width: 100%; height: 100%; object-fit: cover; }
.shots figcaption { font-size: 13px; color: var(--muted); margin-top: 9px; line-height: 1.5; }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: s; }
.step { border-top: 2px solid var(--ink); padding-top: 16px; }
.step h4 { margin: 0 0 6px; font-size: 16px; }
.step h4::before {
  counter-increment: s;
  content: counter(s, decimal-leading-zero) "  ";
  color: var(--accent);
  font-weight: 700;
}
.step p { margin: 0; font-size: 14.5px; color: var(--ink-2); }

/* ---------- faq ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  padding: 18px 30px 18px 0;
  font-size: 16px;
  font-weight: 600;
  position: relative;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 15px;
  font-size: 20px;
  color: var(--accent);
  font-weight: 400;
}
.faq details[open] summary::after { content: "\2013"; }
.faq .a { padding: 0 0 20px; font-size: 15px; color: var(--ink-2); max-width: 52em; }
.faq .a p { margin: 0 0 10px; }

/* ---------- cta band ---------- */
.cta-band {
  background: var(--ink);
  color: #fff;
  padding: 54px 0;
}
.cta-band h3 { margin: 0 0 10px; font-size: 28px; letter-spacing: -.01em; }
.cta-band p { margin: 0 0 24px; color: #c3ced8; max-width: 40em; }
.cta-band .btn { background: #fff; color: var(--ink); border-color: #fff; }
.cta-band .btn:hover { background: #e8edf1; border-color: #e8edf1; }

/* ---------- page head ---------- */
.page-head { padding: 52px 0 8px; border-bottom: 1px solid var(--line); }
.page-head .eyebrow {
  font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent); font-weight: 600; margin-bottom: 14px;
}
.page-head h1 { font-size: 36px; line-height: 1.2; margin: 0 0 14px; letter-spacing: -.015em; }
.page-head p { font-size: 17px; color: var(--ink-2); max-width: 44em; margin: 0 0 32px; }

/* ---------- tables ---------- */
table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
table.spec th, table.spec td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.spec th {
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  border-bottom: 1px solid #c8d2d9;
}
table.spec td:first-child { font-weight: 600; width: 30%; }
table.spec tr:last-child td { border-bottom: 0; }

/* ---------- material blocks ---------- */
.mat { border: 1px solid var(--line); padding: 0; display: grid; grid-template-columns: 300px 1fr; }
.mat .pic { overflow: hidden; background: var(--soft); border-right: 1px solid var(--line); }
.mat .pic img { width: 100%; height: 100%; object-fit: cover; }
.mat .info { padding: 26px 28px; }
.mat h3 { margin: 0 0 2px; font-size: 22px; }
.mat .sub { font-size: 13px; color: var(--muted); margin: 0 0 18px; letter-spacing: .04em; text-transform: uppercase; }
.mat dl { margin: 0; display: grid; grid-template-columns: 132px 1fr; gap: 9px 14px; font-size: 14.5px; }
.mat dt { color: var(--muted); font-size: 13px; }
.mat dd { margin: 0; color: var(--ink); }
.mat dd.no { color: var(--warn); }

/* ---------- notices ---------- */
.notice {
  border-left: 3px solid var(--accent);
  background: var(--soft);
  padding: 16px 18px;
  font-size: 14.5px;
  color: var(--ink-2);
  margin: 26px 0 0;
}
.notice b { color: var(--ink); }
.small-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

/* ---------- form ---------- */
form.inquiry { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 20px; max-width: 760px; }
form.inquiry .full { grid-column: 1 / -1; }
form.inquiry label { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 5px; }
form.inquiry input, form.inquiry select, form.inquiry textarea {
  width: 100%;
  font: inherit;
  font-size: 15px;
  padding: 11px 13px;
  border: 1px solid #c8d2d9;
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
}
form.inquiry textarea { min-height: 110px; resize: vertical; }
form.inquiry input:focus, form.inquiry select:focus, form.inquiry textarea:focus {
  outline: 2px solid rgba(15,110,86,.25);
  border-color: var(--accent);
}
form.inquiry .actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
form.inquiry .actions span { font-size: 13px; color: var(--muted); }

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 46px 0 34px;
  font-size: 13.5px;
  color: var(--muted);
}
footer.site .cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 28px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
footer.site .brand { font-size: 16px; margin-bottom: 10px; }
footer.site h5 {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 10px;
  font-weight: 600;
}
footer.site a { color: var(--ink-2); }
footer.site p { margin: 0 0 6px; line-height: 1.6; }
footer.site .legal { line-height: 1.7; }

/* ---------- whatsapp float ---------- */
.wa {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 9px;
  background: #17795e;
  color: #fff;
  padding: 12px 16px;
  border-radius: 40px;
  font-size: 14.5px;
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(26,43,60,.22);
}
.wa:hover { background: #0f6e56; text-decoration: none; }
.wa svg { width: 19px; height: 19px; fill: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .grid-3, .features, .shots, .steps { grid-template-columns: repeat(2, 1fr); }
  .strip .wrap { grid-template-columns: repeat(2, 1fr); }
  .strip .cell:nth-child(2) { border-right: 0; }
  .strip .cell:nth-child(1), .strip .cell:nth-child(2) { border-bottom: 1px solid var(--line); }
  .mat { grid-template-columns: 1fr; }
  .mat .pic { border-right: 0; border-bottom: 1px solid var(--line); aspect-ratio: 4 / 3; }
  .hero h1 { font-size: 34px; }
  footer.site .cols { grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 720px) {
  nav.main { display: none; }
  header.site .wrap { height: 58px; }
  .hero { padding: 40px 0 28px; }
  .hero h1 { font-size: 28px; }
  .hero p.lead { font-size: 16px; }
  section { padding: 44px 0; }
  h3.sec-title { font-size: 24px; }
  .grid-3, .features, .shots, .steps, .grid-2 { grid-template-columns: 1fr; }
  form.inquiry { grid-template-columns: 1fr; }
  .page-head h1 { font-size: 28px; }
  .card .shot { aspect-ratio: 4 / 3; }
  .topbar .wrap { gap: 14px; font-size: 12px; }
  .wa span { display: none; }
  .wa { padding: 14px; }
}