/* ─────────────────────────────────────────────
   SKINARCHETYPE.COM — Design System
   Scholar layer. Minimal. Reference-grade.
───────────────────────────────────────────── */

:root {
  --bg:            #F9F8F5;
  --surface:       #FFFFFF;
  --text:          #1A1917;
  --text-muted:    #6B6862;
  --text-faint:    #A09C96;
  --border:        #E5E2DC;
  --border-light:  #F0EDE8;

  /* Archetype accent colours */
  --a: #C85A1E;
  --b: #C97B84;
  --c: #4A7FA5;
  --p: #9B8EC4;
  --d: #6B8C5A;
  --s: #2D3A7A;

  --serif:  Georgia, 'Times New Roman', Times, serif;
  --sans:   -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  --max-w: 760px;
  --gap:   2rem;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* ─── LAYOUT ─── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── NAVIGATION ─── */
nav {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  gap: 2rem;
}

.nav-brand {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: normal;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--text); }

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text);
}

@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    align-items: flex-start;
  }
  .nav-links.open { display: flex; }
}

/* ─── HERO / PAGE INTRO ─── */
.page-intro {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border-light);
}

.page-intro .label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1rem;
  display: block;
}

.page-intro h1 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: normal;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

.page-intro .standfirst {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 600px;
}

/* ─── CONTENT SECTIONS ─── */
.section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border-light);
}

.section:last-of-type { border-bottom: none; }

.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1.5rem;
  display: block;
}

h2 {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: normal;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

h3 {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  margin-top: 2rem;
}

h3:first-child { margin-top: 0; }

p { margin-bottom: 1.25rem; }
p:last-child { margin-bottom: 0; }

ul, ol {
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

li { margin-bottom: 0.4rem; }

/* ─── ARCHETYPE GRID (hub page) ─── */
.archetype-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 2rem;
}

.archetype-card {
  background: var(--surface);
  padding: 1.75rem 1.5rem;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: background 0.15s;
}

.archetype-card:hover { background: var(--bg); }

.archetype-card .symbol {
  width: 40px;
  height: 40px;
}

.archetype-card .code {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.archetype-card .name {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: normal;
  line-height: 1.3;
}

.archetype-card .type {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Accent bar on card hover */
.archetype-card { border-left: 3px solid transparent; }
.archetype-card.type-a:hover { border-left-color: var(--a); }
.archetype-card.type-b:hover { border-left-color: var(--b); }
.archetype-card.type-c:hover { border-left-color: var(--c); }
.archetype-card.type-p:hover { border-left-color: var(--p); }
.archetype-card.type-d:hover { border-left-color: var(--d); }
.archetype-card.type-s:hover { border-left-color: var(--s); }

/* ─── INDIVIDUAL ARCHETYPE PAGE ─── */
.archetype-hero {
  padding: 4rem 0 3rem;
}

.archetype-hero .symbol-large {
  width: 72px;
  height: 72px;
  margin-bottom: 1.75rem;
}

.archetype-hero .code-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
}

.archetype-hero .code-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.archetype-hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  font-weight: normal;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

.archetype-hero .definition {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 580px;
  border-left: 2px solid var(--border);
  padding-left: 1.25rem;
  margin-top: 1.5rem;
}

/* Accent colour per archetype */
.accent-a { color: var(--a); }
.accent-b { color: var(--b); }
.accent-c { color: var(--c); }
.accent-p { color: var(--p); }
.accent-d { color: var(--d); }
.accent-s { color: var(--s); }

.border-a { border-color: var(--a) !important; }
.border-b { border-color: var(--b) !important; }
.border-c { border-color: var(--c) !important; }
.border-p { border-color: var(--p) !important; }
.border-d { border-color: var(--d) !important; }
.border-s { border-color: var(--s) !important; }

.dot-a { background: var(--a); }
.dot-b { background: var(--b); }
.dot-c { background: var(--c); }
.dot-p { background: var(--p); }
.dot-d { background: var(--d); }
.dot-s { background: var(--s); }

/* ─── DATA BLOCKS ─── */
.data-block {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.data-block h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.data-block ul {
  margin-bottom: 0;
}

/* ─── ABOUT / FRAMEWORK SECTIONS ─── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

@media (max-width: 580px) {
  .two-col { grid-template-columns: 1fr; }
}

.col-block h3 { margin-top: 0; }

/* ─── DISCLAIMER ─── */
.disclaimer {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-top: 2rem;
}

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: 4rem;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-disclaimer {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 520px;
}

.footer-meta {
  font-size: 0.75rem;
  color: var(--text-faint);
  text-align: right;
  white-space: nowrap;
}

/* ─── LINKS ─── */
a { color: var(--text); }
a:hover { text-decoration: underline; }

.text-link {
  color: var(--text);
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
}

.text-link:hover {
  border-bottom-color: var(--text);
  text-decoration: none;
}

/* ─── UTILITY ─── */
.mt-sm  { margin-top: 1rem; }
.mt-md  { margin-top: 2rem; }
.mt-lg  { margin-top: 3rem; }

.text-muted { color: var(--text-muted); }
.text-small { font-size: 0.85rem; }
.serif      { font-family: var(--serif); }