/* Mobile first. System fonts only, no external requests. */
:root {
  color-scheme: light;
  --ink: #17242b;
  --muted: #4f5d66;
  --bg: #faf8f4;
  --surface: #ffffff;
  --band: #f1ede4;
  --line: #e3ddd1;
  --brand: #0e4a5c;        /* 9.6:1 on white */
  --brand-dark: #093746;
  --brand-tint: #e6f0f2;
  --accent: #3f8f6b;
  --field-border: #7d8a92; /* 3.6:1 on white */
  --ph-bg: #fff6e3;
  --ph-line: #d6a540;
  --ph-ink: #6b4a00;       /* 7:1 on --ph-bg */
  --focus: #c2410c;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(23, 36, 43, 0.06), 0 6px 20px rgba(23, 36, 43, 0.07);
  --serif: "Iowan Old Style", "Charter", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

img { max-width: 100%; }

.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1.25rem; }

a { color: var(--brand); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--brand-dark); text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.2; color: var(--brand-dark); }
h2 { font-size: 1.85rem; margin: 0 0 1.25rem; }
h2::before {
  content: ""; display: block; width: 2.5rem; height: 4px; margin-bottom: 0.75rem;
  background: var(--accent); border-radius: 2px;
}
h3 { font-size: 1.3rem; margin: 0 0 0.75rem; }

.skip-link {
  position: absolute; left: 0.5rem; top: -4rem; z-index: 20;
  background: var(--brand); color: #fff; padding: 0.75rem 1rem; border-radius: 8px;
}
.skip-link:focus { top: 0.5rem; color: #fff; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

.muted { color: var(--muted); }

/* Hero */
.hero {
  position: relative; overflow: hidden;
  color: #fff;
  background-color: var(--brand);
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 500' preserveAspectRatio='xMidYMid slice'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='0.09' stroke-width='1.5'%3E%3Cpath d='M560 90c90-10 170 40 170 110s-70 120-160 120-150-40-150-110 50-110 140-120z'/%3E%3Cpath d='M555 50c120-15 220 50 220 150s-95 165-215 165-200-60-200-155 75-145 195-160z'/%3E%3Cpath d='M550 10c150-20 275 60 275 190s-120 210-270 210-250-75-250-200 95-180 245-200z'/%3E%3Cpath d='M545-30c180-25 330 70 330 230s-145 255-325 255-300-90-300-245 115-215 295-240z'/%3E%3Cpath d='M540-70c210-30 385 80 385 270s-170 300-380 300-350-105-350-290 135-250 345-280z'/%3E%3Cpath d='M565 135c50-5 95 25 95 65s-40 70-90 70-85-25-85-65 30-65 80-70z'/%3E%3Cpath d='M-60 430c120-60 260-40 330 20s30 120-80 130-310-20-310-80 0-50 60-70z'/%3E%3Cpath d='M-90 390c150-80 330-60 420 15s40 160-100 175-390-25-390-105 10-60 70-85z'/%3E%3Cpath d='M-120 350c180-100 400-80 510 10s50 200-120 220-470-30-470-130 20-70 80-100z'/%3E%3C/g%3E%3C/svg%3E"),
    linear-gradient(160deg, #11576b 0%, #0e4a5c 45%, #0a3644 100%);
  background-size: cover, cover;
  background-position: center, center;
}
.hero-inner { padding-top: 3rem; padding-bottom: 3rem; }
.hero .eyebrow {
  display: inline-block; margin: 0 0 1rem; padding: 0.3rem 0.8rem;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25); border-radius: 999px;
}
.hero h1 { margin: 0; font-size: 2.3rem; color: #fff; letter-spacing: -0.01em; }
.hero-sub { margin: 0.5rem 0 0; font-size: 1.25rem; color: #d6e7eb; }
.hero-loc { display: flex; align-items: center; gap: 0.4rem; margin: 1.25rem 0 0; color: #d6e7eb; font-size: 1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

/* Sticky in-page nav */
.page-nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(23,36,43,0.05);
}
.page-nav ul {
  list-style: none; margin: 0 auto; padding-top: 0; padding-bottom: 0;
  display: flex; gap: 0.25rem; overflow-x: auto; scrollbar-width: none;
}
.page-nav ul::-webkit-scrollbar { display: none; }
.page-nav a {
  display: block; white-space: nowrap; min-height: 48px; padding: 0.75rem 0.85rem;
  color: var(--ink); font-size: 0.98rem; font-weight: 600; text-decoration: none;
  border-bottom: 3px solid transparent;
}
.page-nav a:hover { color: var(--brand); border-bottom-color: var(--accent); }

/* Sections */
.section { padding: 3.5rem 0; scroll-margin-top: 3.5rem; }
.section-band { background: var(--band); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

/* Overview */
.overview-grid { display: grid; gap: 2rem; }
.prose { max-width: 42rem; }
.prose p { margin: 0 0 1.1rem; }
.source-note {
  font-size: 0.85rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted);
}
.purpose { padding: 1rem 1.25rem; background: var(--brand-tint); border-left: 4px solid var(--brand); border-radius: 0 10px 10px 0; }
.text-link { font-weight: 600; }
.text-link::after { content: " \2192"; }

.facts { margin: 0; align-self: start; }
.facts div { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.facts div:first-child { padding-top: 0; }
.facts div:last-child { border-bottom: 0; padding-bottom: 0; }
.facts dt { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 0.2rem 0 0; font-family: var(--serif); font-size: 1.2rem; color: var(--brand-dark); }

/* Figures */
.figure-grid { display: grid; gap: 1.5rem; }
figure { margin: 0; }
.figure-card { display: flex; flex-direction: column; padding: 1rem; }
.figure-card h3, .figure-card .placeholder { margin-left: 0.25rem; margin-right: 0.25rem; }
.concept-figure { margin: 0; }
.concept-figure + .concept-figure { margin-top: 2rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.figure-card.portrait .figure-link { width: 100%; max-width: 48rem; margin: 0 auto; }
.figure-card.portrait figcaption { width: 100%; max-width: 48rem; margin-left: auto; margin-right: auto; }
.figure-link { display: block; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); }
.figure-link img { display: block; width: 100%; height: auto; transition: transform 0.3s ease; }
.figure-link:hover img { transform: scale(1.02); }
@media (prefers-reduced-motion: reduce) { .figure-link img { transition: none; } }
figcaption { margin-top: 0.75rem; font-size: 0.92rem; line-height: 1.5; color: var(--muted); }

/* Download card */
.download-card { display: grid; gap: 1rem; justify-items: start; padding: 2rem 1.5rem; }
.download-card h2 { margin-bottom: 0.25rem; }
.download-card h2::before { display: none; }
.download-card p { margin: 0; color: var(--muted); }
.doc-icon { color: var(--brand); }

/* Documents */
.doc-intro { margin: 0 0 0.75rem; }
.lang-notes { list-style: none; margin: 0 0 1.5rem; padding: 0.85rem 1rem; background: var(--brand-tint); border-radius: 10px; font-size: 0.95rem; }
.lang-notes li { margin: 0.15rem 0; }
.doc-list { display: grid; gap: 1.25rem; }
.doc-card { display: grid; grid-template-columns: auto 1fr; gap: 0 1rem; align-items: start; scroll-margin-top: 4rem; }
.doc-card h3 { margin: 0.1rem 0 0.25rem; }
.doc-meta { margin: 0 0 0.9rem; color: var(--muted); font-size: 0.95rem; }
.doc-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.lang-link {
  display: inline-flex; align-items: center; min-height: 48px; padding: 0.6rem 1rem;
  font-weight: 650; text-decoration: none; color: var(--brand-dark);
  border: 2px solid var(--brand); border-radius: 10px; background: #fff;
}
.lang-link:hover { background: var(--brand-tint); color: var(--brand-dark); }
.hero-langs { margin: 1.25rem 0 0; font-size: 0.98rem; color: #d6e7eb; }
.hero-langs a { color: #fff; font-weight: 600; }
.hero-langs a:hover { color: #fff; }
@media (max-width: 39.99rem) {
  .doc-card { grid-template-columns: 1fr; }
  .doc-card .doc-icon { margin-bottom: 0.5rem; }
  .doc-links li { flex: 1 1 calc(50% - 0.6rem); }
  .doc-links .button, .doc-links .lang-link { width: 100%; justify-content: center; }
}

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 50px; padding: 0.75rem 1.4rem;
  font: inherit; font-size: 1.05rem; font-weight: 650; line-height: 1.3;
  color: #fff; background: var(--brand); border: 2px solid var(--brand); border-radius: 10px;
  text-decoration: none; cursor: pointer;
  transition: background-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.button:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(9,55,70,0.25); text-decoration: none; }
.button-light { background: #fff; border-color: #fff; color: var(--brand-dark); }
.button-light:hover { background: #e8f1f3; border-color: #e8f1f3; color: var(--brand-dark); }
.button-outline { background: transparent; border-color: rgba(255,255,255,0.7); color: #fff; }
.button-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.button-wide { width: 100%; }
@media (prefers-reduced-motion: reduce) { .button, .button:hover { transition: none; transform: none; } }

/* Comment */
.period {
  display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1.5rem;
  padding: 1rem 1.25rem; background: var(--surface); border: 1px solid var(--line); border-left: 5px solid var(--accent); border-radius: 10px;
}
.period svg { flex: none; margin-top: 0.2rem; color: var(--accent); }
.period p { margin: 0; }
.period-steps { margin: 0.5rem 0 0 1.1rem; padding: 0; font-size: 0.97rem; }
.period-steps li { margin: 0.2rem 0; }

.comment-grid { display: grid; gap: 1.5rem; align-items: start; }
.form-card .muted { margin-top: -0.25rem; font-size: 0.95rem; }

.field-row { display: grid; gap: 0 1rem; }
.field { margin-bottom: 1.25rem; }
.field label { display: block; font-weight: 650; margin-bottom: 0.4rem; }
.req, .opt { font-weight: 400; color: var(--muted); font-size: 0.92rem; }
.field input, .field textarea {
  display: block; width: 100%; min-height: 50px; padding: 0.7rem 0.85rem;
  font: inherit; color: var(--ink); background: #fcfbf9;
  border: 2px solid var(--field-border); border-radius: 10px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(14,74,92,0.18); background: #fff; }
.field textarea { resize: vertical; min-height: 10rem; }
.notice { margin: 0 0 1.25rem; }

.mail-icon { color: var(--brand); margin-bottom: 0.5rem; }
.mail-card p { margin: 0 0 0.75rem; }
address { font-style: normal; }

/* Placeholders: clearly marked so none ship by accident */
.placeholder {
  background: var(--ph-bg); color: var(--ph-ink);
  border: 1px dashed var(--ph-line); border-radius: 6px;
  padding: 0.1rem 0.4rem; font-size: 0.95em;
}
p.placeholder, address.placeholder { display: block; padding: 0.65rem 0.85rem; margin-bottom: 1rem; }

/* Contacts */
.contacts { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.25rem; }
.contacts p { margin: 0 0 0.5rem; }
.contacts p:last-child { margin-bottom: 0; }
.contacts a { overflow-wrap: anywhere; }
.contact-name { font-family: var(--serif); font-size: 1.2rem; color: var(--brand-dark); }
.contact-name { font-weight: 700; }

/* Footer */
.site-footer { padding: 2.5rem 0; background: var(--brand-dark); color: #c9dbe0; font-size: 0.95rem; }
.site-footer p { margin: 0; }
.footer-name { font-family: var(--serif); font-size: 1.15rem; color: #fff; margin-bottom: 0.25rem !important; }

/* Thank you page */
.thanks-page { min-height: 100vh; display: grid; place-items: center; padding: 1.25rem; background: var(--band); }
.thanks-card { max-width: 32rem; text-align: center; padding: 2.5rem 2rem; }
.thanks-card h1 { margin: 0.75rem 0 0.5rem; font-size: 2rem; }
.thanks-card p { margin: 0 0 1.5rem; color: var(--muted); }
.check { color: var(--accent); }

/* Phones: let figure cards run edge to edge so the images are as large as possible */
@media (max-width: 39.99rem) {
  .figure-card { margin: 0 -1.25rem; padding: 1rem 0.5rem; border-radius: 0; border-left: 0; border-right: 0; }
  .figure-card h3, .figure-card .placeholder, .figure-card figcaption { margin-left: 0.75rem; margin-right: 0.75rem; }
  .figure-card.portrait figcaption { width: auto; }
}

/* Wider screens */
@media (min-width: 40rem) {
  .hero-inner { padding-top: 4.5rem; padding-bottom: 4.5rem; }
  .hero h1 { font-size: 3.1rem; }
  .hero .eyebrow { font-size: 0.85rem; letter-spacing: 0.04em; }
  .hero-sub { font-size: 1.45rem; }
  .field-row { grid-template-columns: 1fr 1fr; }
  .contacts { grid-template-columns: 1fr 1fr; }
  .download-card { grid-template-columns: auto 1fr auto; align-items: center; padding: 2rem; }
  .button-wide { width: auto; }
}

@media (min-width: 56rem) {
  .section { padding: 4.5rem 0; }
  h2 { font-size: 2.1rem; }
  .overview-grid { grid-template-columns: minmax(0, 1fr) 20rem; gap: 3rem; }
  .comment-grid { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
  .card { padding: 2rem; }
  .figure-card { padding: 1.5rem; }
}