/* ============================================================
   Measurement Viewer — pricing page (standalone)
   Blueprint Steel palette. Lives in the APP repo (not the
   marketing repo), so it deliberately shares no files with
   landing/academy — only the same hardcoded palette.
   ============================================================ */

:root {
  --steel:       #284561;
  --steel-grid:  #33547a;
  --steel-text:  #ffffff;
  --steel-mut:   #c4d2e4;

  --bg:          #f6f8fb;
  --bg-grid:     #e7ecf3;
  --panel:       #ffffff;
  --border:      #d5dce6;

  --text:        #16191d;
  --text-2:      #5e6878;
  --text-3:      #8a96a8;

  --accent:      #2f86d4;
  --accent-soft: rgba(47, 134, 212, 0.12);
  --link:        #2563b0;

  --radius: 12px;
  --max: 980px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -0.015em; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

a { color: var(--link); text-decoration: none; }
a:focus-visible,
.btn:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  transition: filter .12s, background .12s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-outline {
  border: 1px solid var(--accent);
  color: var(--link);
  background: transparent;
}
.btn-outline:hover { background: var(--accent-soft); }
.btn-lg { padding: 12px 26px; font-size: 15px; }

/* ---------- nav ---------- */
.nav {
  background: var(--steel);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 14px clamp(16px, 4vw, 40px);
}
.nav-brand { display: flex; align-items: center; gap: 10px; color: var(--steel-text); }
.nav-logo {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: var(--accent);
  flex: 0 0 auto;
}
.nav-name { font-size: 15px; font-weight: 600; }
.nav-links { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px; }
.nav-links > a:not(.btn) { color: var(--steel-mut); font-size: 14px; }
.nav-links > a:not(.btn):hover,
.nav-links > a[aria-current="page"] { color: var(--steel-text); }

/* ---------- hero ---------- */
.pricing-hero {
  background-color: var(--steel);
  background-image:
    linear-gradient(var(--steel-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--steel-grid) 1px, transparent 1px);
  background-size: 32px 32px;
  text-align: center;
  padding: clamp(40px, 6vw, 64px) 20px 84px;
}
.pricing-hero h1 {
  color: var(--steel-text);
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 750;
}
.pricing-hero p {
  color: var(--steel-mut);
  font-size: 15px;
  margin: 10px auto 0;
  max-width: 520px;
}

/* ---------- tier cards ---------- */
.tiers {
  max-width: var(--max);
  margin: -48px auto 0;   /* cards overlap the steel hero edge */
  padding: 0 clamp(16px, 4vw, 40px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: start;
}
.tier {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tier h2 { font-size: 18px; font-weight: 700; }
.tier-desc { color: var(--text-2); font-size: 13px; min-height: 2.6em; }
.tier-price {
  font-size: 34px;
  font-weight: 750;
  letter-spacing: -0.02em;
  margin-top: 4px;
}
.tier-price span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0;
}
.tier-quota {
  display: inline-block;
  align-self: flex-start;
  background: var(--accent-soft);
  color: var(--link);
  font-size: 12.5px;
  font-weight: 650;
  border-radius: 999px;
  padding: 3px 12px;
  margin: 2px 0 10px;
}
.tier ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.tier li {
  font-size: 13.5px;
  color: var(--text-2);
  padding-left: 22px;
  position: relative;
}
.tier li::before {
  content: "";
  position: absolute;
  left: 0; top: 4px;
  width: 12px; height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}
.tier .btn { margin-top: auto; }

/* featured (middle) tier */
.tier-featured {
  border: 2px solid var(--accent);
  box-shadow: 0 8px 28px rgba(47, 134, 212, 0.14);
  position: relative;
}
.tier-flag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 12px;
  white-space: nowrap;
}

/* ---------- FAQ ---------- */
.section-title { font-size: 19px; font-weight: 700; margin-bottom: 16px; }

.faq {
  max-width: 760px;
  margin: 0 auto;
  padding: 52px clamp(16px, 4vw, 40px) 10px;
}
.faq details {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 9px;
  margin-bottom: 8px;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  font-size: 14px;
  font-weight: 550;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  width: 8px; height: 8px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  transition: transform .15s;
  flex: 0 0 auto;
}
.faq details[open] summary::after { transform: rotate(225deg); }
.faq details[open] summary { color: var(--link); }
.faq details > p {
  color: var(--text-2);
  font-size: 13.5px;
  padding: 0 16px 14px;
}

/* ---------- CTA ---------- */
.cta {
  text-align: center;
  padding: 52px 20px 64px;
}
.cta h2 { font-size: clamp(20px, 3vw, 26px); }
.cta p { color: var(--text-2); margin: 10px 0 22px; }

/* ---------- footer ---------- */
.footer {
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 30px clamp(16px, 4vw, 40px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 26px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-links a { color: var(--text-2); font-size: 13px; }
.footer-links a:hover { color: var(--text); }
.footer-legal { color: var(--text-3); font-size: 12px; width: 100%; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .tiers { grid-template-columns: 1fr; max-width: 460px; }
  .tier-featured { order: -1; }   /* featured plan first on mobile */
}