/* PatientPapers — shared styles
   Editorial / archival-document / certification-stamp aesthetic.
   Flat colors, no gradients. System fonts only (no third-party font calls —
   consistent with the privacy-first positioning). */

:root {
  --ink:      #163A43;  /* deep teal-ink — primary text & dark sections */
  --stamp:    #C2412B;  /* vermilion stamp-red — accent */
  --manila:   #EFE9DD;  /* warm paper — page background */
  --slate:    #3C5A63;  /* muted secondary */
  --graphite: #20292C;  /* near-black */
  --paper:    #FBF9F4;  /* lighter card paper */
  --line:     #D8CFBE;  /* hairline on manila */
  --ink-line: #2C525B;  /* hairline on ink */

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --maxw: 1080px;
  --gap: clamp(1rem, 2.5vw, 2rem);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--manila);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.01em; font-weight: 700; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); margin: 0 0 0.5em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin: 0 0 0.6em; }
h3 { font-size: 1.18rem; margin: 0 0 0.4em; }
p { margin: 0 0 1em; }
a { color: var(--stamp); text-decoration-thickness: 1px; text-underline-offset: 2px; }

/* ---------- layout helpers ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gap); }
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section--ink { background: var(--ink); color: var(--manila); }
.section--ink h1, .section--ink h2, .section--ink h3 { color: #fff; }
.section--ink a { color: #F0B5A8; }
.section--paper { background: var(--paper); }
.center { text-align: center; }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--slate); max-width: 60ch; }
.section--ink .lead { color: #CBD8DA; }
.center .lead { margin-left: auto; margin-right: auto; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stamp);
  margin: 0 0 1rem;
  font-weight: 600;
}
.section--ink .eyebrow { color: #E8927F; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8em 1.6em;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform .06s ease, background .15s ease, color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--stamp); color: #fff; border-color: var(--stamp); }
.btn--primary:hover { background: #a8331f; border-color: #a8331f; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--manila); }
.section--ink .btn--ghost { color: #fff; border-color: #6f9099; }
.section--ink .btn--ghost:hover { background: #fff; color: var(--ink); }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(239,233,221,0.92);
  backdrop-filter: saturate(120%) blur(6px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.7rem var(--gap); max-width: var(--maxw); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; }
.brand svg { display: block; height: 34px; width: 34px; }
.brand .pp-p { color: var(--stamp); }
.nav-links { display: flex; align-items: center; gap: 1.4rem; }
.nav-links a { color: var(--ink); text-decoration: none; font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover { color: var(--stamp); }
.nav-links .btn { padding: 0.5em 1.05em; font-size: 0.92rem; }
@media (max-width: 760px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ---------- hero ---------- */
.hero { padding-top: clamp(3rem, 6vw, 5rem); }
.hero-grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
@media (max-width: 820px) { .hero-grid { grid-template-columns: 1fr; } .hero-stamp { order: -1; } }
.hero h1 .accent { color: var(--stamp); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.6rem 0 0.9rem; }
.hero-note { font-family: var(--mono); font-size: 0.8rem; color: var(--slate); margin: 0; }
.hero-stamp { display: flex; justify-content: center; }
.hero-stamp svg { width: min(280px, 70vw); height: auto; filter: drop-shadow(0 8px 22px rgba(22,58,67,0.18)); }

/* ---------- generic grids ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 820px) { .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.4rem;
}
.section--ink .card { background: #12333b; border-color: var(--ink-line); }
.card .num { font-family: var(--mono); font-size: 0.8rem; color: var(--stamp); font-weight: 700; letter-spacing: 0.1em; }

/* ---------- proof strip ---------- */
.proof { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 2rem; font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.04em; color: #CBD8DA; text-transform: uppercase; }
.proof span { white-space: nowrap; }
.proof .dot { color: var(--stamp); }

/* ---------- pricing ---------- */
.price-card { max-width: 520px; margin: 0 auto; background: var(--paper); border: 2px solid var(--ink); border-radius: 14px; padding: clamp(1.5rem, 4vw, 2.5rem); position: relative; }
.price-tag { font-size: clamp(2.4rem, 6vw, 3.2rem); font-weight: 700; color: var(--ink); line-height: 1; }
.price-tag small { font-size: 1rem; font-weight: 500; color: var(--slate); }
.price-card ul { list-style: none; padding: 0; margin: 1.2rem 0; text-align: left; }
.price-card li { padding: 0.4rem 0 0.4rem 1.7rem; position: relative; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--stamp); font-weight: 700; }
.guarantee { font-family: var(--mono); font-size: 0.9rem; background: var(--manila); border: 1px dashed var(--stamp); border-radius: 8px; padding: 0.9rem 1rem; color: var(--ink); margin: 1.2rem 0; }
.founding-flag { display: inline-block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; background: var(--stamp); color: #fff; padding: 0.3em 0.7em; border-radius: 4px; transform: rotate(-2deg); margin-bottom: 0.8rem; }

/* ---------- FAQ ---------- */
.faq details { border-bottom: 1px solid var(--line); padding: 0.5rem 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; padding: 0.6rem 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--stamp); font-size: 1.3rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--slate); margin: 0 0 0.8rem; }

/* ---------- signup ---------- */
.signup-form { display: flex; flex-wrap: wrap; gap: 0.7rem; justify-content: center; max-width: 560px; margin: 1.4rem auto 0.8rem; }
.signup-form input[type=email], .signup-form select {
  flex: 1 1 220px; min-width: 0; font-family: var(--sans); font-size: 1rem;
  padding: 0.8em 1em; border-radius: 6px; border: 1px solid #6f9099; background: #fff; color: var(--ink);
}
.signup-form .btn { flex: 0 0 auto; }
.signup-micro { font-family: var(--mono); font-size: 0.75rem; color: #B9C8CB; max-width: 52ch; margin: 0.6rem auto 0; }
.section--ink .signup-micro a { color: #F0B5A8; }
.form-status { font-family: var(--mono); font-size: 0.9rem; margin-top: 0.8rem; min-height: 1.2em; }
.form-status.ok { color: #8Fd0b6; }
.form-status.err { color: #F0B5A8; }

/* ---------- footer ---------- */
.site-footer { background: var(--graphite); color: #B9C8CB; padding: 2.6rem 0 2rem; font-size: 0.9rem; }
.site-footer a { color: #DCE6E7; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; align-items: flex-start; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer-brand { display: flex; align-items: center; gap: 0.5rem; color: #fff; font-weight: 700; font-size: 1.1rem; }
.footer-brand .pp-p { color: var(--stamp); }
.footer-tag { font-family: var(--mono); font-size: 0.78rem; color: #8aa0a4; margin-top: 0.4rem; }
.footer-legal { margin-top: 1.8rem; padding-top: 1.2rem; border-top: 1px solid #33404300; border-top-color: #353f42; font-size: 0.8rem; color: #8aa0a4; }
.footer-disclaimer { font-family: var(--mono); font-size: 0.74rem; line-height: 1.5; color: #76898d; margin-top: 0.6rem; }

/* ---------- legal (privacy/terms) pages ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: clamp(2.5rem, 6vw, 4rem) var(--gap); }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.legal h2 { font-size: 1.3rem; margin-top: 2rem; }
.legal h3 { font-size: 1.08rem; margin-top: 1.4rem; }
.legal .updated { font-family: var(--mono); font-size: 0.8rem; color: var(--slate); }
.legal .draft-note { background: #fff6ee; border: 1px dashed var(--stamp); border-radius: 8px; padding: 0.9rem 1.1rem; font-size: 0.9rem; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin: 0.3rem 0; }
.legal .back { font-family: var(--mono); font-size: 0.82rem; display: inline-block; margin-bottom: 1.5rem; }

/* ---------- a11y ---------- */
:focus-visible { outline: 3px solid var(--stamp); outline-offset: 2px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: #fff; padding: 0.6rem 1rem; border-radius: 6px; z-index: 100; }