/* ==========================================================================
   sovernity.com — single stylesheet (R1-6a)
   Design language: docs/DESIGN_SPEC.md §5 — warm paper + deep Sovernity
   green, flat surfaces, hairline borders, system type, calm motion.
   Color tokens are the §5.3 table, verbatim. No external fonts, no external
   requests of any kind.
   ========================================================================== */

/* ---- Tokens (DESIGN_SPEC §5.3) ---- */
:root {
  --bg-app: #FAFAF8;
  --surface-raised: #FFFFFF;
  --border: #E4E2DD;
  --text-primary: #1A1A18;
  --text-secondary: #6B6A66;
  --text-tertiary: #9A9892;
  --accent: #3D6B5C;
  --on-accent: #FAFAF8;
  --state-ok: #3E7D5B;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-app: #1C1C1E;
    --surface-raised: #28282B;
    --border: #3A3A3E;
    --text-primary: #ECECEA;
    --text-secondary: #A4A3A0;
    --text-tertiary: #6E6D6A;
    --accent: #6FA08E;
    --on-accent: #14211C;
    --state-ok: #5FAF85;
  }
}

/* ---- Base ---- */
* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg-app);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "SF Pro Text", "Helvetica Neue",
    "Segoe UI", Arial, sans-serif;
  font-size: 1.0625rem; /* 17px — reading prose is the primary activity */
  line-height: 1.55;
}

code, .mono {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: system-ui, -apple-system, "SF Pro Display", "Helvetica Neue",
    "Segoe UI", Arial, sans-serif;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 0.6em;
  text-wrap: balance;
}
h1 { font-size: clamp(2rem, 5.5vw, 3.25rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface-raised);
  color: var(--text-primary);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  z-index: 10;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ---- Layout ---- */
.wrap {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 24px;
}
.prose { max-width: 68ch; }

section { padding: 56px 0; }
section + section { border-top: 1px solid var(--border); }

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  text-decoration: none;
}
.brand img { display: block; border-radius: 6px; }
.site-nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
}
.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--text-primary); }

/* ---- Hero ---- */
.hero { padding: 84px 0 64px; }
.hero .kicker {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.hero h1 { max-width: 21ch; }
.hero .subhero {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 52ch;
  margin: 12px 0 20px;
}
.hero .qualifier {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 62ch;
  border-left: 2px solid var(--accent);
  padding-left: 14px;
  margin: 0 0 32px;
}
.cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-note { color: var(--text-secondary); font-size: 0.95rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
}
.btn:hover { filter: brightness(1.07); text-decoration: none; }
.btn:active { filter: brightness(0.95); }

.btn-quiet {
  display: inline-block;
  color: var(--accent);
  font-size: 0.95rem;
  text-decoration: none;
}

/* ---- Media placeholders (FB-3) ---- */
.media-slot {
  position: relative;
  margin: 0;
  background: var(--surface-raised);
  border: 1.5px dashed var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.media-slot.ratio-16x10 { aspect-ratio: 16 / 10; }
.media-slot .watermark {
  position: absolute;
  width: 42%;
  opacity: 0.07;
  pointer-events: none;
}
.media-slot .slot-label {
  position: relative;
  color: var(--text-tertiary);
  font-size: 0.9rem;
  text-align: center;
  padding: 0 16px;
}
figcaption {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 10px;
}

.shot {
  margin: 0;
}
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-raised);
}

/* The shots are 2084px-wide full-window captures. Left to fill .wrap they
   render ~476px per column — a quarter scale, which is both visually
   dominant and too small to read. Capping the gallery keeps them as a
   gallery rather than four hero images; the figure is the cap, not the
   image width, so the two-column rhythm and the captions stay intact. */
.shot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 28px;
  max-width: 760px;      /* -> ~370px per shot on desktop */
  margin-inline: auto;
}

/* ---- How it works ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  counter-increment: step;
}
.steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--text-secondary); font-size: 0.97rem; margin: 0; }
.steps p + p { margin-top: 8px; }

/* ---- Privacy section ---- */
.privacy-lead {
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  max-width: 34ch;
  line-height: 1.35;
  margin: 0 0 28px;
  text-wrap: balance;
}
.claim-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.claim-card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.claim-card p { margin: 0; color: var(--text-secondary); }
.claim-card p strong { color: var(--text-primary); }

/* ---- Download ---- */
.download-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.download-lines {
  color: var(--text-secondary);
  font-size: 0.97rem;
  max-width: 62ch;
}
.download-lines p { margin: 0 0 6px; }
.requirements {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-top: 24px;
  max-width: 720px;
  font-size: 0.97rem;
}
.requirements p { margin: 0 0 8px; }
.requirements p:last-child { margin-bottom: 0; }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0 44px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.site-footer .static-note {
  color: var(--text-primary);
  margin-bottom: 14px;
}
.footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.site-footer .copyright {
  color: var(--text-tertiary);
  margin: 0;
}

/* ---- Privacy-policy page ---- */
.policy { padding: 56px 0 72px; }
.policy h1 { font-size: clamp(1.7rem, 4vw, 2.4rem); }
.policy .version-line { color: var(--text-secondary); }
.policy h2 { margin-top: 2em; font-size: 1.3rem; }
.policy ul { padding-left: 1.3em; }
.policy li { margin-bottom: 0.4em; }
.table-scroll { overflow-x: auto; margin: 1em 0; }
.policy table {
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 640px;
}
.policy th, .policy td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.policy th { background: var(--surface-raised); }

/* ---- 404 ---- */
.notfound {
  padding: 96px 0;
  text-align: center;
}
.notfound img { border-radius: 14px; margin-bottom: 24px; }
.notfound p { color: var(--text-secondary); }

/* ---- Responsive ---- */
@media (max-width: 760px) {
  .shot-grid, .claim-grid, .steps { grid-template-columns: 1fr; }
  /* One column: without a cap a shot stretches to the full container
     (~712px at this breakpoint), which is larger than it ever renders
     on desktop — the opposite of what a narrow viewport wants. */
  .shot img { max-width: 420px; margin-inline: auto; }
  .hero { padding: 56px 0 48px; }
  section { padding: 44px 0; }
}