/* ═══════════════════════════════════════════════════════════════════════
   mtplus.css — the MT+ product page (site_mtplus.html), 2026-09 refresh

   A compact dark band (the home hero's language, without the diagram) with
   the download card on the right, then a quiet light body. The tier section
   is drawn as a staircase because the tiers really are a strict ladder:
   each one includes everything below it (MTPLUS_LICENSING_SPEC §2).
   ═══════════════════════════════════════════════════════════════════════ */

.mtp-hero {
  background-color: var(--dark);
  background-image:
    radial-gradient(ellipse 60% 120% at 85% 50%, transparent 0%, var(--dark) 75%),
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 100% 100%, 24px 24px, 24px 24px;
  color: var(--white);
}
.mtp-hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 44px 28px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}
.mtp-crumb { font-size: 13px; color: #9a9a9a; margin-bottom: 18px; }
.mtp-crumb a { color: var(--on-dark); text-decoration: none; }
.mtp-crumb a:hover { color: var(--white); text-decoration: underline; }
.mtp-title {
  font: 700 clamp(4rem, 9vw, 6.5rem)/0.9 var(--font-display);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.mtp-title span[aria-hidden] { color: var(--red); }
.mtp-tagline {
  font: 600 1.45rem/1.25 var(--font-display);
  color: var(--white);
  margin-bottom: 14px;
  max-width: 30ch;
}
.mtp-lede { color: var(--on-dark); font-size: 1.02rem; line-height: 1.65; max-width: 52ch; }

/* ── Download card ── */
.mtp-get {
  background: var(--white);
  color: var(--dark);
  border-radius: 16px;
  padding: 26px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  border-top: 4px solid var(--red);
}
.mtp-get-head { font: 600 1.3rem/1.25 var(--font-display); margin-bottom: 14px; }
.mtp-get-copy { color: var(--gray); margin: -6px 0 16px; line-height: 1.55; }
.mtp-dl {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 24px;
  border: 0;
  border-radius: 11px;
  background: var(--red);
  color: var(--white);
  font: 600 16px var(--font-sans);
  cursor: pointer;
  transition: background 0.15s;
}
.mtp-dl:hover { background: #a83224; }
.mtp-dl:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
.mtp-warn { margin-top: 10px; font-size: 13.5px; color: var(--gray); }
.mtp-warn a { color: var(--red); }
.mtp-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 20px 0 14px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.mtp-facts dt { font-size: 12.5px; color: #6b6b6b; }
.mtp-facts dd { font: 500 14px var(--font-mono); }
.mtp-verify { font-size: 13.5px; color: var(--gray); }
.mtp-verify summary { cursor: pointer; color: var(--dark); font-weight: 500; }
.mtp-verify p { margin: 8px 0; line-height: 1.5; }
.mtp-verify code { font-family: var(--font-mono); font-size: 12px; }
.mtp-sha {
  display: block;
  padding: 8px 10px;
  border-radius: 7px;
  background: var(--page-bg);
  word-break: break-all;
  color: var(--dark);
}
.mtp-notes { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); }
.mtp-notes-head { font-weight: 600; cursor: pointer; }
.mtp-notes-count { font-weight: 400; color: var(--gray); }
.mtp-notes ul {
  max-height: 320px;
  overflow-y: auto;
  margin-top: 8px;
  padding: 0 6px 0 18px;
  color: var(--gray);
  font-size: 14px;
  line-height: 1.55;
}
.mtp-notes li + li { margin-top: 6px; }
.mtp-get .dl-countdown { margin-top: 16px; }

/* ── Body ── */
.mtp-body { max-width: 1120px; margin: 0 auto; padding: 52px 28px 8px; width: 100%; }
.mtp-sec { margin-bottom: 48px; }
.mtp-sec h2 { font: 600 1.6rem/1.15 var(--font-display); margin-bottom: 16px; }
.mtp-sec-lede { color: var(--gray); line-height: 1.6; max-width: 70ch; margin: -6px 0 24px; }

.mtp-feats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px 28px;
}
.mtp-feats li { padding-top: 16px; border-top: 2px solid var(--dark); }
.mtp-feats-icon { color: var(--red); display: block; margin-bottom: 10px; }
.mtp-feats h3 { font-size: 1.05rem; margin-bottom: 4px; }
.mtp-feats p { color: var(--gray); line-height: 1.55; font-size: 0.95rem; }
.mtp-feats-more { margin-top: 24px; color: var(--gray); font-size: 0.95rem; line-height: 1.55; }
/* A gated tool's tier, in the ladder's colours below. */
.mtp-chip {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  font: 600 0.72rem/1.3 var(--font-sans);
  letter-spacing: 0.02em;
  vertical-align: 2px;
}
.mtp-chip--certified { background: var(--red-light); border: 1px solid var(--red-border); color: var(--red); }
.mtp-chip--dsg { background: var(--red); color: var(--white); }

.mtp-checks { list-style: none; display: grid; gap: 10px; }
.mtp-checks li { position: relative; padding-left: 30px; line-height: 1.5; }
.mtp-checks li::before {
  content: "";
  position: absolute;
  left: 2px; top: 3px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--red-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-4.8' fill='none' stroke='%23c0392b' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 16px no-repeat;
  border: 1px solid var(--red-border);
}

/* Tier staircase: each step taller and redder than the last. */
.ladder {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
  margin-bottom: 28px;
}
.ladder-step {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
  padding: 14px 16px;
  border-radius: 12px 12px 4px 4px;
  min-height: var(--h);
}
.ladder-step--1 { --h: 96px;  background: #fff;           border: 1px solid var(--border); }
.ladder-step--2 { --h: 128px; background: var(--red-light); border: 1px solid var(--red-border); }
.ladder-step--3 { --h: 160px; background: #f3c9c4; }
.ladder-step--4 { --h: 192px; background: var(--red); color: var(--white); }
.ladder-name { font: 700 1.2rem/1.1 var(--font-display); }
.ladder-who { font-size: 0.875rem; line-height: 1.4; color: var(--gray); }
.ladder-step--3 .ladder-who { color: #5a2a24; }
.ladder-step--4 .ladder-who { color: #ffe3df; }
.ladder-who em { font-style: normal; font-weight: 600; }

.mtp-redeem {
  max-width: 70ch;
  padding-left: 18px;
  border-left: 3px solid var(--red);
}
.mtp-redeem h3 { font-size: 1.05rem; margin-bottom: 6px; }
.mtp-redeem p { color: var(--gray); line-height: 1.6; }
.mtp-redeem p + p { margin-top: 8px; }

.mtp-faq-more { margin-top: 16px; color: var(--gray); }
.mtp-faq-more a { color: var(--red); }

.mtp-fine { font-size: 13.5px; color: #6b6b6b; line-height: 1.6; max-width: 80ch; }
.mtp-fine a, .mtp-sec a { color: var(--red); }

@media (max-width: 900px) {
  .mtp-hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 32px 20px 40px; }
  .mtp-feats { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 640px) {
  .mtp-hero-inner { padding: 24px 16px 32px; }
  .mtp-body { padding: 36px 16px 8px; }
  .mtp-get { padding: 20px; }
  .ladder { grid-template-columns: 1fr; align-items: stretch; }
  /* Stacked, the ladder reads top-down, so the widths grow instead. */
  .ladder-step { min-height: 0; border-radius: 10px; }
  .ladder-step--1 { margin-right: 36%; }
  .ladder-step--2 { margin-right: 24%; }
  .ladder-step--3 { margin-right: 12%; }
}