/* Inkfluence shared styles. Dark editorial theme, single serif display font. */

:root {
  --bg: #0a0a0a;
  --bg-raised: #131313;
  --line: #2a2a28;
  --ink: #ece8e1;
  --ink-dim: #a8a49c;
  --ink-faint: #706c65;
  --accent: #c9a24b;
  --accent-dim: #8a7135;
  --radius: 2px;
  --maxw: 1120px;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Circular line motif, reused across section backgrounds */
.ring {
  position: absolute;
  border: 1px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

section { position: relative; overflow: hidden; }

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--ink);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 400; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 400; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--ink-dim); }

.lede {
  font-size: 1.15rem;
  color: var(--ink);
  max-width: 62ch;
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75em;
  display: block;
}

.section {
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--ink-dim);
  transition: color 0.15s ease;
}

.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  font-family: var(--sans);
}

.btn:hover { border-color: var(--accent); background: rgba(201, 162, 75, 0.08); }

.btn-solid {
  background: var(--accent);
  color: #14110a;
  border-color: var(--accent);
  font-weight: 600;
}

.btn-solid:hover { background: #d9b25f; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 96px 0 80px;
  text-align: center;
}

.hero .ring-a { width: 640px; height: 640px; top: -320px; left: 50%; transform: translateX(-50%); }
.hero .ring-b { width: 420px; height: 420px; top: -180px; left: 50%; transform: translateX(-50%); }

.hero-inner { position: relative; z-index: 1; max-width: 760px; margin: 0 auto; }

.hero h1 { margin-bottom: 0.4em; }

.hero .lede { margin: 0 auto 2em; text-align: center; }

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  z-index: 1;
}

.card {
  border: 1px solid var(--line);
  padding: 32px;
  background: var(--bg-raised);
  border-radius: var(--radius);
}

.card h3 { margin-bottom: 0.5em; }
.card p:last-child { margin-bottom: 0; }

/* FAQ */
.faq-list { position: relative; z-index: 1; }

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-family: var(--sans);
  color: var(--accent);
  font-size: 1.4rem;
  flex-shrink: 0;
}

.faq-item[open] summary::after { content: "\2212"; }

.faq-item p { margin-top: 14px; }

/* Footer */
.site-footer {
  padding: 56px 0 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.footer-links a { text-decoration: none; color: var(--ink-dim); font-size: 0.9rem; }
.footer-links a:hover { color: var(--ink); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* Forms */
.form-field { margin-bottom: 20px; }

.form-field label {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

.form-field input, .form-field textarea {
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  padding: 12px 14px;
  font-family: var(--sans);
  font-size: 0.95rem;
}

.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-error {
  color: #d98c6a;
  font-size: 0.82rem;
  margin-top: 6px;
  display: none;
}

.form-field.invalid input, .form-field.invalid textarea { border-color: #d98c6a; }
.form-field.invalid .form-error { display: block; }

.form-status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  display: none;
}

.form-status.success { display: block; background: rgba(201, 162, 75, 0.12); border: 1px solid var(--accent-dim); color: var(--ink); }
.form-status.error { display: block; background: rgba(217, 140, 106, 0.1); border: 1px solid #a85a3d; color: var(--ink); }

/* Blog */
.post-list { display: grid; gap: 28px; position: relative; z-index: 1; }

.post-card {
  display: block;
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 32px;
  border-radius: var(--radius);
  transition: border-color 0.15s ease;
}

.post-card:hover { border-color: var(--accent-dim); }

.post-card .eyebrow { margin-bottom: 12px; }

.post-meta {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 12px;
}

article.post-body {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

article.post-body h2 { margin-top: 1.6em; }
article.post-body h3 { margin-top: 1.3em; }

.byline {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--ink-faint);
  margin-bottom: 40px;
}

.byline strong { color: var(--ink-dim); }

.source-note {
  font-size: 0.85rem;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  margin-top: 48px;
  padding-top: 20px;
}

.breadcrumbs {
  font-size: 0.82rem;
  color: var(--ink-faint);
  padding: 20px 0 0;
  position: relative;
  z-index: 1;
}

.breadcrumbs a { text-decoration: none; color: var(--ink-faint); }
.breadcrumbs a:hover { color: var(--ink-dim); }

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--accent);
  color: #14110a;
  padding: 10px 16px;
  z-index: 100;
}

.skip-link:focus { left: 16px; top: 16px; }

@media (max-width: 860px) {
  .nav-menu { display: none; }
  .nav-toggle { display: block; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  .section { padding: 64px 0; }
}

@media (max-width: 860px) {
  body.nav-open .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    padding: 24px;
    gap: 20px;
  }
  body.nav-open .nav-links {
    flex-direction: column;
    gap: 20px;
  }
  body.nav-open .header-cta {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
}