/* Attera v2 — Security page (dark "working paper") */

.is-dark {
  background: var(--dark-paper);
  color: var(--dark-ink);
  /* Re-map tokens within scope */
  --paper:     #16140F;
  --paper-2:   #1E1C16;
  --paper-3:   #211F18;
  --ink:       #E8E2D3;
  --ink-2:     #C7C0AE;
  --mute:      #98907F;
  --rule:      #2E2A22;
  --rule-soft: #25221B;
  --teal-tint: rgba(15,138,126,0.18);
  --amber-tint: rgba(185,122,30,0.16);
}
.is-dark::before {
  /* dark paper grain */
  background-image:
    radial-gradient(circle at 18% 22%, rgba(255,250,240,0.025) 0, transparent 55%),
    radial-gradient(circle at 78% 76%, rgba(255,250,240,0.018) 0, transparent 50%);
}
.is-dark h1, .is-dark h2, .is-dark h3, .is-dark h4 { color: var(--dark-ink); }
.is-dark h1 em, .is-dark h2 em { color: #6FCBC1; }
.is-dark .chip {
  background: rgba(255,250,240,0.03);
  color: var(--mute);
  border-color: var(--rule);
}
.is-dark .chip:hover { background: rgba(255,250,240,0.06); color: var(--ink); }
.is-dark .btn--primary { background: var(--dark-ink); color: var(--dark-paper); }
.is-dark .btn--primary:hover { background: #6FCBC1; color: var(--dark-paper); }
.is-dark .btn--secondary { color: var(--dark-ink); border-color: var(--mute); }
.is-dark .btn--secondary:hover { background: var(--dark-ink); color: var(--dark-paper); }
.is-dark .hairline th { color: var(--mute); border-bottom-color: var(--dark-ink); }
.is-dark .hairline th, .is-dark .hairline td { border-bottom-color: var(--rule); }

/* ===== Hero ===== */
.sec-hero {
  padding: 96px 0 64px;
  border-bottom: 1px solid var(--rule);
}
.sec-hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: end;
}
.sec-hero h1 {
  font-size: clamp(48px, 6.4vw, 88px);
  max-width: 14ch;
  margin-bottom: 32px;
}
.sec-hero__quote {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 60, "SOFT" 30;
  font-weight: 360;
  font-size: 22px;
  line-height: 1.4;
  color: var(--mute);
  border-left: 2px solid #6FCBC1;
  padding: 8px 0 8px 20px;
  max-width: 32ch;
}
.sec-hero__quote span { color: var(--dark-ink); }

@media (max-width: 980px) {
  .sec-hero__grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== The six claims ===== */
.sec-claims { padding: 80px 0; }
.sec-claims__head {
  max-width: 36ch;
  margin-bottom: 56px;
}
.sec-claims__head h2 { margin-top: 14px; }
.sec-claims__head p {
  font-size: 16px;
  color: var(--ink-2);
  margin-top: 20px;
  max-width: 56ch;
  line-height: 1.6;
}

.sec-claim {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 48px;
  align-items: start;
  padding: 40px 0;
  border-top: 1px solid var(--rule);
}
.sec-claim:last-child { border-bottom: 1px solid var(--rule); }
.sec-claim__num {
  font-family: var(--serif);
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-weight: 360;
  font-size: 64px;
  color: #6FCBC1;
  line-height: 0.9;
  letter-spacing: -0.03em;
}
.sec-claim__num small {
  font-family: var(--mono);
  font-size: 11px;
  font-style: normal;
  color: var(--mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-top: 6px;
}
.sec-claim__body { display: flex; flex-direction: column; gap: 14px; }
.sec-claim__body h3 {
  font-size: 26px;
  letter-spacing: -0.015em;
  font-weight: 400;
}
.sec-claim__body > p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-2);
  max-width: 60ch;
}
.sec-claim__proofs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

@media (max-width: 720px) {
  .sec-claim { grid-template-columns: 1fr; gap: 16px; padding: 32px 0; }
  .sec-claim__num { font-size: 48px; }
}

/* ===== Sub-processors ===== */
.sec-sub { padding: 80px 0; background: var(--paper-2); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.sec-sub__head { max-width: 56ch; margin-bottom: 40px; }
.sec-sub__head h2 { margin-top: 14px; }
.sec-sub__head p {
  font-size: 16px;
  color: var(--ink-2);
  margin-top: 16px;
  max-width: 52ch;
}
.sec-sub table { background: var(--paper-3); border: 1px solid var(--rule); }
.sec-sub .hairline th { background: transparent; }
.sec-sub .hairline td { padding: 18px 22px; }
.sec-sub .proc-name { width: 22%; font-family: var(--serif); font-size: 18px; color: var(--dark-ink); font-weight: 400; }
.sec-sub .proc-region { width: 22%; font-family: var(--mono); font-size: 12.5px; color: var(--mute); letter-spacing: 0.04em; }
.sec-sub .proc-purpose { color: var(--ink-2); font-size: 14.5px; line-height: 1.55; }
.sec-sub__note {
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--mute);
  letter-spacing: 0.04em;
}
.sec-sub__note::before { content: "·  "; }

/* ===== Verify-it-yourself / methodology ===== */
.sec-verify { padding: 80px 0; }
.sec-verify__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.sec-verify h2 { margin-bottom: 24px; max-width: 16ch; }
.sec-verify__copy p {
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 56ch;
}
.sec-verify__copy p + p { margin-top: 1.2em; }
.sec-verify__copy.drop-cap > p:first-of-type::first-letter { color: var(--dark-ink); }

.sec-checklist {
  display: flex; flex-direction: column;
}
.sec-checklist__item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}
.sec-checklist__item:first-child { border-top: 1px solid var(--rule); }
.sec-checklist__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 4px;
}
.sec-checklist__body strong {
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 16px;
  color: var(--dark-ink);
  margin-bottom: 4px;
}
.sec-checklist__body p {
  font-size: 13.5px; line-height: 1.5; color: var(--ink-2); margin: 0;
}

@media (max-width: 980px) {
  .sec-verify__grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== Contact strip ===== */
.sec-contact {
  padding: 56px 0 80px;
  border-top: 1px solid var(--rule);
}
.sec-contact__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px;
  align-items: baseline;
}
.sec-contact h3 {
  font-size: 28px;
  max-width: 16ch;
}
.sec-contact h3 em { color: #6FCBC1; }
.sec-contact__cell-lbl {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mute);
  margin-bottom: 8px;
}
.sec-contact__cell a {
  font-family: var(--serif);
  font-size: 18px;
  color: #6FCBC1;
  border-bottom: 1px solid rgba(111,203,193,0.4);
  padding-bottom: 2px;
}
.sec-contact__cell a:hover { color: var(--dark-ink); border-bottom-color: var(--dark-ink); }

@media (max-width: 880px) {
  .sec-contact__grid { grid-template-columns: 1fr; gap: 32px; }
}