/* ===================================================================
   SAINT · MISSISSIPPI CHIROPRACTIC · SHARED STYLESHEET v3
   =================================================================== */

:root {
  /* INK */
  --ink: #0E0F0C;
  --ink-2: #1C1E19;
  --ink-3: #2A2D26;

  /* WARM SURFACES */
  --paper: #FAFAF6;        /* near-white, crisp section */
  --bone: #F5F1EA;         /* primary warm background */
  --bone-2: #ECE6DB;       /* card surface on bone */
  --bone-3: #E1D9CA;       /* warm divider */
  --warm-card: #F9F4EA;    /* subtle elevated surface */

  /* RULES + MUTED */
  --rule: #CFC6B3;
  --rule-soft: #DBD3C0;
  --muted: #6F6A5D;
  --muted-2: #89847A;

  /* ACCENT */
  --accent: #B64820;
  --accent-deep: #8F3819;
  --accent-pale: #F0D9CC;
  --accent-paler: #FAEEE6;

  /* STATUS */
  --ok: #2F5D3E;

  /* TYPE */
  --display: 'Spectral', 'Times New Roman', serif;
  --serif: 'Spectral', 'Times New Roman', serif;
  --body: 'Inter Tight', 'Helvetica Neue', sans-serif;
  --mono: 'DM Mono', 'Courier New', monospace;

  --container: 1180px;
  --container-narrow: 820px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  margin: 0;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bone);
  font-feature-settings: "ss01", "cv11";
}
::selection { background: var(--accent); color: var(--bone); }
a { color: inherit; }

/* ===== PASSWORD GATE ===== */
#gate {
  position: fixed; inset: 0;
  background: var(--ink);
  color: var(--bone);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 24px;
}
.gate-inner { max-width: 440px; width: 100%; }
.gate-mark {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone-3);
  margin-bottom: 48px;
}
.gate-mark span { color: var(--accent); }
.gate-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.022em;
  margin: 0 0 14px 0;
  color: var(--bone);
}
.gate-title em { font-family: var(--serif); font-style: italic; color: var(--accent-pale); font-weight: 400; }
.gate-sub {
  font-size: 14px;
  color: var(--muted-2);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 380px;
}
.gate-form {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--ink-3);
  padding-bottom: 12px;
  transition: border-color 0.3s;
}
.gate-form:focus-within { border-color: var(--accent); }
.gate-form input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--bone);
  font-family: var(--body);
  font-size: 16px;
  padding: 8px 0;
}
.gate-form input::placeholder { color: var(--muted); }
.gate-form button {
  background: transparent;
  border: 0;
  color: var(--bone-3);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 8px 0 8px 18px;
  transition: color 0.2s;
  font-weight: 500;
}
.gate-form button:hover { color: var(--accent); }
.gate-err {
  font-size: 12px;
  color: var(--accent);
  margin-top: 14px;
  min-height: 18px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}
.gate-foot {
  margin-top: 56px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
body.locked { overflow: hidden; }
body.unlocked #gate { display: none; }

/* ===== NAV ===== */
header.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(245, 241, 234, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.mark {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  font-weight: 500;
}
.mark span { color: var(--accent); }
.nav-mid {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-mid span { color: var(--ink); }
.nav-right {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

.nav-pages {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav-pages a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
  font-weight: 500;
}
.nav-pages a:hover { color: var(--ink); }
.nav-pages a.current { color: var(--ink); border-bottom-color: var(--accent); }

@media (max-width: 820px) {
  .nav-mid { display: none; }
  .nav-inner { padding: 14px 20px; }
  .nav-pages { gap: 14px; }
}

/* ===== COVER ===== */
section.cover {
  padding: 120px 32px 96px;
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}
.cover-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-weight: 500;
}
.cover-meta span.value { color: var(--ink); }
.cover-meta .current-date { color: var(--accent-deep); }
h1.cover-title {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin: 0 0 40px 0;
  max-width: 16ch;
}
h1.cover-title em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent-deep);
}
.cover-line {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 58ch;
  margin: 0 0 80px 0;
  border-left: 2px solid var(--accent);
  padding-left: 22px;
}
.cover-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}
.cover-item .lbl {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  font-weight: 500;
}
.cover-item .val {
  font-family: var(--display);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: -0.012em;
  line-height: 1.25;
  color: var(--ink);
}
.cover-item .val em { font-family: var(--serif); font-style: italic; color: var(--accent-deep); font-weight: 400; }

@media (max-width: 820px) {
  section.cover { padding: 64px 20px 56px; }
  .cover-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .cover-meta { gap: 14px; font-size: 10px; }
  .cover-line { padding-left: 16px; margin-bottom: 56px; }
}

/* ===== SECTION FRAMES (multi-tone) ===== */
section.block {
  padding: 96px 32px;
  max-width: var(--container);
  margin: 0 auto;
}
section.block.bordered { border-top: 1px solid var(--rule); }
section.block.tight { padding: 72px 32px; }

/* Section background tones — full-bleed wrappers */
.wrap-paper { background: var(--paper); }
.wrap-bone { background: var(--bone); }
.wrap-cream { background: var(--warm-card); }
.wrap-ink {
  background: var(--ink);
  color: var(--bone);
}
.wrap-accent-pale { background: var(--accent-paler); }

.wrap-paper section.block,
.wrap-bone section.block,
.wrap-cream section.block,
.wrap-ink section.block,
.wrap-accent-pale section.block { border-top: 0; }

.wrap-ink section.block { color: var(--bone); }

@media (max-width: 820px) {
  section.block { padding: 64px 20px; }
}

.section-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
  display: flex;
  gap: 18px;
  align-items: baseline;
  font-weight: 500;
}
.section-label .num { color: var(--accent); }
.wrap-ink .section-label { color: var(--bone-3); }
.wrap-ink .section-label .num { color: var(--accent-pale); }

h2.section-h {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0 0 40px 0;
  max-width: 24ch;
}
h2.section-h em {
  font-family: var(--serif);
  font-style: italic;
  color: var(--accent-deep);
  font-weight: 400;
}
.wrap-ink h2.section-h { color: var(--bone); }
.wrap-ink h2.section-h em { color: var(--accent-pale); }

h3.sub-h {
  font-family: var(--display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.012em;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 14px 0;
}
.wrap-ink h3.sub-h { color: var(--bone); }

p.lede {
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(19px, 2.1vw, 24px);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 42ch;
  margin: 0 0 40px 0;
}
.wrap-ink p.lede { color: var(--bone-2); }

p.body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 62ch;
  margin: 0 0 18px 0;
}
.wrap-ink p.body { color: var(--bone-2); }

/* ===== BUTTONS ===== */
.btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 18px 30px;
  border: 1px solid var(--ink-3);
  color: var(--ink);
  transition: all 0.3s;
  display: inline-block;
  background: transparent;
  cursor: pointer;
  font-weight: 500;
}
.btn:hover { background: var(--ink); color: var(--bone); border-color: var(--ink); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--bone); }
.btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: var(--bone); }
.btn.dark-bg { border-color: var(--bone-3); color: var(--bone); }
.btn.dark-bg:hover { background: var(--bone); color: var(--ink); border-color: var(--bone); }
.btn.dark-bg.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--bone); }
.btn.dark-bg.btn-primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* ===== CITATIONS / FOOTNOTES ===== */
sup.cite {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--accent);
  font-weight: 600;
  padding: 0 2px;
  vertical-align: super;
  line-height: 1;
}
.wrap-ink sup.cite { color: var(--accent-pale); }
.sources {
  border-top: 1px solid var(--rule);
  padding: 24px 0 0 0;
  margin-top: 40px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.sources strong {
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.18em;
  display: block;
  margin-bottom: 12px;
}
.sources ol { padding-left: 22px; margin: 0; }
.sources li { margin-bottom: 6px; }
.sources a { color: var(--muted); text-decoration: underline; text-decoration-color: var(--rule); }
.sources a:hover { color: var(--accent); }
.wrap-ink .sources { border-top-color: var(--ink-3); color: var(--bone-3); }
.wrap-ink .sources strong { color: var(--bone); }
.wrap-ink .sources a { color: var(--bone-3); text-decoration-color: var(--ink-3); }

/* ===== FOOTER ===== */
footer {
  padding: 48px 32px;
  max-width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
}
footer .f-mark {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
footer .f-mark span { color: var(--ink); }
footer .f-meta {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ===== REVEAL ===== */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-1 { transition-delay: 0.05s; }
.reveal-2 { transition-delay: 0.12s; }
.reveal-3 { transition-delay: 0.2s; }
.reveal-4 { transition-delay: 0.28s; }

/* ===== TOC ===== */
.toc {
  position: fixed;
  left: 32px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.toc a {
  width: 18px; height: 1px;
  background: var(--rule);
  transition: all 0.3s;
  display: block;
}
.toc a.active { width: 32px; background: var(--accent); }
.toc a:hover { background: var(--ink); }
@media (max-width: 1280px) { .toc { display: none; } }