/* ═══════════════════════════════════════════════════════
   PAWSCIENCE — Design System
   Visual Style: Clean editorial, pet health authority
   Accent: Deep Blue (#1e40af) + Warm Amber (#b45309)
   Typography: Fraunces / Satoshi / IBM Plex Mono
   ═══════════════════════════════════════════════════════ */

:root {
  --accent: #1e40af;
  --accent-hover: #1e3a8a;
  --accent-light: #eff6ff;
  --accent-dim: rgba(30,64,175,0.08);
  --secondary: #b45309;
  --secondary-light: #fef3c7;
  --secondary-hover: #92400e;

  --bg: #fafaf9;
  --surface: #ffffff;
  --surface-alt: #f5f5f4;
  --text: #1c1917;
  --text-secondary: #44403c;
  --muted: #78716c;
  --dim: #a8a29e;
  --border: #e7e5e4;
  --border-dark: #d6d3d1;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Satoshi', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --max-w: 860px;
  --wide: 1000px;
  --radius: 10px;
  --radius-sm: 6px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

/* ── NETWORK BAR ── */
.network-bar {
  background: #1c1917;
  padding: 6px 1.5rem;
  font-size: .7rem;
  color: #a8a29e;
  display: flex;
  align-items: center;
  gap: .75rem;
  overflow-x: auto;
  white-space: nowrap;
}
.network-bar span { font-weight: 600; color: #78716c; margin-right: .25rem; }
.network-bar a { color: #a8a29e; font-family: var(--font-mono); font-size: .65rem; }
.network-bar a:hover { color: #fff; text-decoration: none; }
.network-bar a.current { color: var(--accent); font-weight: 600; }

/* ── DISCLOSURE ── */
.disclosure {
  background: var(--accent-light);
  border-bottom: 1px solid var(--border);
  padding: .5rem 1.5rem;
  font-size: .75rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}
.disclosure a { color: var(--accent); font-weight: 500; }

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,249,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -.01em;
}
.nav-brand span {
  color: var(--accent);
}
.nav-brand:hover { text-decoration: none; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-links a {
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.nav-links a:hover { color: var(--accent); text-decoration: none; }
.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: .4rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .8rem !important;
  font-weight: 600 !important;
  transition: background .2s;
}
.nav-cta:hover { background: var(--accent-hover); text-decoration: none !important; }

/* ── HERO ── */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
  text-align: center;
}
.hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: .3rem .8rem;
  border-radius: 20px;
  margin-bottom: 1.25rem;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -.02em;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
}
.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}
.hero-cta {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: .6rem 1.5rem;
  border-radius: var(--radius-sm);
  transition: all .2s;
}
.hero-cta:hover {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}

/* ── STATS ROW ── */
.stats-row {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}
.stat {
  text-align: center;
  min-width: 100px;
}
.stat-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
}
.stat-label {
  font-size: .78rem;
  color: var(--muted);
  font-weight: 500;
  margin-top: .15rem;
}

/* ── SECTIONS ── */
.section {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .5rem;
  letter-spacing: -.01em;
}
.section-sub {
  font-size: .95rem;
  color: var(--muted);
  margin-bottom: 1.25rem;
  line-height: 1.6;
  max-width: 640px;
}

/* ── CARD GRID ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

/* ── GUIDE CARD ── */
.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
  text-decoration: none;
  color: var(--text);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.guide-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,.06);
  border-color: var(--border-dark);
  text-decoration: none;
}
.guide-card-cat {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.guide-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -.01em;
}
.guide-card-desc {
  font-size: .85rem;
  color: var(--muted);
  line-height: 1.55;
}
.guide-card-tag {
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--dim);
  margin-top: .35rem;
}

/* ── AD ZONE ── */
.ad-zone {
  max-width: var(--max-w);
  margin: 1.5rem auto;
  padding: 0 1.5rem;
  min-height: 90px;
}

/* ── CTA BLOCK ── */
.cta-block {
  background: var(--accent-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}
.cta-block-icon {
  font-size: 1.75rem;
  line-height: 1;
  flex-shrink: 0;
}
.cta-block-body {
  flex: 1;
}
.cta-block-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .35rem;
}
.cta-block-desc {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: .85rem;
}
.btn-deal {
  display: inline-block;
  background: var(--secondary);
  color: #fff;
  font-weight: 600;
  font-size: .85rem;
  padding: .5rem 1.15rem;
  border-radius: var(--radius-sm);
  transition: background .2s;
}
.btn-deal:hover {
  background: var(--secondary-hover);
  text-decoration: none;
  color: #fff;
}

/* ── EMAIL MICRO ── */
.email-micro {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.email-micro-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}
.email-micro-text {
  flex: 1;
  font-size: .88rem;
  color: var(--text-secondary);
  min-width: 200px;
}
.email-micro-text strong {
  color: var(--text);
}
.email-micro-input {
  font-family: var(--font-body);
  font-size: .85rem;
  padding: .5rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  width: 200px;
  background: var(--bg);
  color: var(--text);
  transition: border-color .2s;
}
.email-micro-input:focus {
  border-color: var(--accent);
}
.email-micro-btn {
  font-family: var(--font-body);
  font-size: .82rem;
  font-weight: 600;
  padding: .5rem 1rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background .2s;
  white-space: nowrap;
}
.email-micro-btn:hover {
  background: var(--accent-hover);
}

/* ── STICKY EMAIL STRIP ── */
.email-strip {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: #1c1917;
  padding: .65rem 1.5rem;
  transform: translateY(100%);
  transition: transform .35s ease;
}
.email-strip.visible {
  transform: translateY(0);
}
.email-strip-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.email-strip-text {
  flex: 1;
  font-size: .82rem;
  color: #d6d3d1;
  min-width: 180px;
}
.email-strip-text strong {
  color: #fff;
}
.email-strip-input {
  font-family: var(--font-body);
  font-size: .82rem;
  padding: .4rem .65rem;
  border: 1px solid #44403c;
  border-radius: var(--radius-sm);
  background: #292524;
  color: #fafaf9;
  outline: none;
  width: 190px;
  transition: border-color .2s;
}
.email-strip-input:focus {
  border-color: var(--accent);
}
.email-strip-btn {
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  padding: .4rem .9rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: background .2s;
  white-space: nowrap;
}
.email-strip-btn:hover {
  background: var(--accent-hover);
}
.email-strip-close {
  background: none;
  border: none;
  color: #78716c;
  font-size: 1.1rem;
  cursor: pointer;
  padding: .25rem;
  line-height: 1;
  transition: color .2s;
}
.email-strip-close:hover {
  color: #fff;
}

/* ── FOOTER ── */
.footer {
  max-width: var(--max-w);
  margin: 3rem auto 0;
  padding: 2.5rem 1.5rem 2rem;
  border-top: 1px solid var(--border);
}
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: .5rem;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1rem;
}
.footer-links a {
  font-size: .82rem;
  font-weight: 500;
  color: var(--muted);
}
.footer-links a:hover { color: var(--accent); }
.footer-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 1rem;
}
.footer-extra a {
  font-size: .82rem;
  font-weight: 500;
  color: var(--muted);
}
.footer-extra a:hover { color: var(--accent); }
.footer-disc {
  font-size: .75rem;
  color: var(--dim);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.footer-disc a { color: var(--muted); }
.footer-network {
  font-size: .7rem;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
}
.footer-network span { font-weight: 600; color: var(--muted); margin-right: .25rem; }
.footer-network a { color: var(--dim); font-family: var(--font-mono); font-size: .65rem; }
.footer-network a:hover { color: var(--accent); }

/* ── RESPONSIVE (700px) ── */
@media (max-width: 700px) {
  .hero { padding: 3rem 1.25rem 2.5rem; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }

  .stats-row { gap: 1.5rem; }
  .stat-number { font-size: 1.4rem; }

  .nav-links { gap: .75rem; }
  .nav-links a { font-size: .78rem; }
  .nav-cta { padding: .35rem .75rem; font-size: .75rem !important; }

  .card-grid { grid-template-columns: 1fr; }

  .cta-block { flex-direction: column; gap: .75rem; }

  .email-micro { flex-direction: column; align-items: stretch; gap: .6rem; }
  .email-micro-input { width: 100%; }

  .email-strip-inner { justify-content: center; text-align: center; }
  .email-strip-text { min-width: 100%; }
  .email-strip-input { width: 140px; flex: 1; }

  .section { margin-bottom: 2rem; }
  .section-title { font-size: 1.3rem; }
}