/* ==========================================================================
   TurfNotes — Shared Design System
   Rename brand references before launch. Fonts are system-stack only
   (no external font requests) to keep the static site fast on Cloudflare.
   ========================================================================== */

:root {
  --color-primary: #1B4332;
  --color-primary-light: #2D6A4F;
  --color-primary-dark: #0F2A1D;
  --color-accent: #C1440E;
  --color-accent-light: #E07A3E;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F5F0;
  --color-bg-card: #FFFFFF;
  --color-text: #1F2937;
  --color-text-muted: #5B6472;
  --color-border: #E4E1D9;
  --color-success-bg: #EAF3EC;

  --font-heading: ui-serif, Georgia, "Times New Roman", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif;

  --radius: 10px;
  --radius-sm: 6px;
  --max-width: 1120px;
  --shadow-sm: 0 1px 3px rgba(15, 42, 29, 0.08);
  --shadow-md: 0 4px 16px rgba(15, 42, 29, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.25;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Skip link (accessibility) ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 10px; top: 10px; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: var(--max-width);
  margin: 0 auto;
  gap: 20px;
}
.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo:hover { text-decoration: none; }
.logo span.dot { color: var(--color-accent); }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.96rem;
}
.main-nav a:hover { color: var(--color-primary); text-decoration: none; }

.nav-toggle { display: none; }

@media (max-width: 760px) {
  .main-nav ul {
    display: none;
    flex-direction: column;
    gap: 4px;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 20px 20px;
  }
  .main-nav ul.is-open { display: flex; }
  .main-nav a { display: block; padding: 10px 0; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    cursor: pointer;
  }
}

/* ---------- Disclosure banner (affiliate) ---------- */
.disclosure-banner {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 8px 16px;
}
.disclosure-banner a { color: var(--color-text-muted); text-decoration: underline; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--color-border);
}
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.hero__lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 640px;
}
.hero__actions { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-light); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { background: var(--color-accent-light); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }

/* ---------- Sections ---------- */
.section { padding: 48px 0; }
.section--alt { background: var(--color-bg-alt); }
.section__head { margin-bottom: 28px; }
.section__head p { color: var(--color-text-muted); max-width: 640px; }

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: 22px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card h3 { margin-bottom: 8px; }
.card h3 a { color: var(--color-primary-dark); }
.card p { color: var(--color-text-muted); font-size: 0.95rem; margin-bottom: 10px; }
.card__meta {
  font-size: 0.78rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  margin-bottom: 8px;
}

.cluster-card {
  display: block;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.cluster-card:hover { text-decoration: none; box-shadow: var(--shadow-md); }
.cluster-card__count { font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------- Ad slots ---------- */
.ad-slot {
  border: 1px dashed var(--color-border);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-align: center;
  margin: 28px auto;
}
.ad-slot--leaderboard { max-width: 728px; min-height: 90px; }
.ad-slot--incontent { max-width: 100%; min-height: 250px; }
.ad-slot--sidebar { min-height: 250px; width: 100%; }
.ad-slot__label { font-weight: 600; }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb .sep { margin: 0 6px; }

/* ---------- Article layout ---------- */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}
@media (max-width: 900px) { .article-layout { grid-template-columns: 1fr; } }

.article-header { margin-bottom: 24px; }
.article-meta {
  display: flex;
  gap: 14px;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-top: 10px;
  flex-wrap: wrap;
}
.article-meta img.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--color-border); object-fit: cover; }

.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 24px 0;
}
.toc h2 { font-size: 1rem; margin-bottom: 10px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc a { color: var(--color-text); font-size: 0.94rem; }

.article-body h2 { margin-top: 1.8em; }
.article-body h3 { margin-top: 1.4em; }
.article-body img { border-radius: var(--radius-sm); margin: 1.2em 0; }
.article-body ul, .article-body ol { padding-left: 22px; }

.author-box {
  display: flex;
  gap: 16px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 32px 0;
  align-items: flex-start;
}
.author-box img.avatar { width: 56px; height: 56px; border-radius: 50%; background: var(--color-border); object-fit: cover; flex-shrink: 0; }
.author-box h3 { margin-bottom: 4px; font-size: 1.05rem; }
.author-box p { margin-bottom: 6px; font-size: 0.92rem; color: var(--color-text-muted); }

.affiliate-note {
  background: #FDF3E9;
  border: 1px solid #F0D9BC;
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.85rem;
  color: #7A5010;
  margin-bottom: 24px;
}

.sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar .card h4 { font-size: 0.95rem; margin-bottom: 12px; }
.sidebar .related-list { list-style: none; margin: 0; padding: 0; }
.sidebar .related-list li { margin-bottom: 10px; font-size: 0.92rem; }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.96rem;
  background: #fff;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.12);
}
.form-note { font-size: 0.82rem; color: var(--color-text-muted); margin-top: 6px; }
.honeypot-field { position: absolute; left: -9999px; top: -9999px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #D8E3DA;
  padding: 48px 0 24px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 14px; font-family: var(--font-body); }
.site-footer p { color: #A9BEB0; font-size: 0.9rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #C7D9CB; font-size: 0.9rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 18px;
  font-size: 0.82rem;
  color: #8FA697;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Static pages (About/Privacy/Terms/Contact) ---------- */
.page-header {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  padding: 44px 0 32px;
  text-align: center;
}
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { margin-top: 1.6em; }
.prose p { color: var(--color-text); }

.about-photo {
  display: block;
  width: 140px; height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
  margin: 0 auto 18px;
  box-shadow: var(--shadow-sm);
}

.about-photo-placeholder {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.78rem;
  text-align: center;
}

.error-page { text-align: center; padding: 90px 20px; }
.error-page .code { font-size: 5rem; font-family: var(--font-heading); color: var(--color-primary); margin-bottom: 0; }