/* Stillwater Field Notes — standalone editorial site (not linked from main landing). */

:root {
  --navy: #111827;
  --navy-deep: #0b1220;
  --text: #101828;
  --muted: #667085;
  --muted-soft: #98a2b3;
  --border: #e4e7ec;
  --surface: #f9fafb;
  --blue: #2f95ff;
  --blue-dark: #1f7ef0;
  --white: #ffffff;
  --font: "Plus Jakarta Sans", "SF Pro Rounded", "Segoe UI", sans-serif;
  --page: min(1120px, calc(100% - 2.5rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--blue-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--navy-deep);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--navy-deep);
  color: var(--white);
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.page-width {
  width: var(--page);
  margin-inline: auto;
}

.site-shell {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.5rem;
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.brand-link {
  color: inherit;
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--navy-deep);
}

.brand img {
  display: block;
  width: 34px;
  height: 34px;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem 1.75rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--blue-dark);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.eyebrow-line {
  width: 1.25rem;
  height: 2px;
  background: var(--blue);
}

.eyebrow-separator {
  color: var(--muted-soft);
}

.fn-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3rem;
  padding-block: 3.5rem 4.5rem;
}

.fn-hero h1 {
  margin: 0;
  font-size: clamp(2.15rem, 4.5vw, 3.35rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.08;
  color: var(--navy-deep);
}

.fn-hero h1 span {
  color: var(--blue-dark);
}

.fn-hero-lead {
  max-width: 32rem;
  margin: 1.35rem 0 1.75rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

.button-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(47, 149, 255, 0.28);
}

.button-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.button-outline {
  background: var(--white);
  color: var(--navy-deep);
  border-color: var(--border);
}

.button-outline:hover {
  border-color: #c5d0de;
  background: var(--surface);
}

.text-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--blue-dark);
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.trust-line {
  margin: 1.1rem 0 0;
  font-size: 0.75rem;
  color: var(--muted-soft);
}

.trust-line span {
  margin-inline: 0.35rem;
}

.fn-hero-card {
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
}

.fn-hero-card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.fn-hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.fn-hero-card li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--muted);
}

.fn-hero-card li svg {
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--blue);
}

.section-eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.topics-section {
  padding-block: 4rem 3.5rem;
  border-top: 1px solid var(--border);
}

.topics-section h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.topic-card {
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--white);
}

.topic-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.topic-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.risk-banner {
  margin-top: 1.75rem;
  padding: 1rem 1.15rem;
  border-radius: 0.65rem;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--muted);
}

.risk-banner strong {
  color: var(--navy);
  font-weight: 700;
}

.faq-section {
  padding-block: 3.5rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.faq-section h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.faq-list {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  max-width: 40rem;
}

.faq-list details {
  border-bottom: 1px solid var(--border);
  padding-block: 1rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 0.98rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--navy-deep);
}

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

.faq-list summary::after {
  content: "+";
  color: var(--blue);
  font-weight: 400;
  font-size: 1.2rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  margin: 0.65rem 0 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted);
}

.updates-section {
  padding-block: 3.75rem 4.5rem;
  border-top: 1px solid var(--border);
}

.updates-section h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.updates-copy p {
  margin: 1.25rem 0 0;
  max-width: 36rem;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--muted);
}

.site-footer {
  margin-top: auto;
  padding-block: 2rem 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
}

.brand-footer {
  font-size: 1rem;
}

.copyright {
  font-size: 0.8125rem;
  color: var(--muted-soft);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.footer-legal a {
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
}

.footer-disclaimer {
  margin: 0;
  max-width: 40rem;
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--muted-soft);
}

.cookie-banner {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 50;
  padding: 1.15rem 1.25rem;
  background: var(--navy-deep);
  color: #e8eef6;
  border-top: 1px solid #1e293b;
  box-shadow: 0 -6px 24px rgba(11, 18, 32, 0.35);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-inner {
  width: var(--page);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-inner p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 38rem;
}

.cookie-inner a {
  color: #9fd0ff;
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  flex-shrink: 0;
}

.cookie-actions .button-outline {
  border-color: #4a5568;
  color: #e8eef6;
  background: transparent;
}

.cookie-actions .button-outline:hover {
  background: #1f2937;
}

.legal-doc {
  padding-block: 2.5rem 4rem;
  flex: 1;
}

.legal-back {
  display: inline-flex;
  margin-bottom: 1.5rem;
  font-weight: 600;
  text-decoration: none;
}

.legal-doc h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.legal-meta {
  margin: 0 0 2rem;
  font-size: 0.875rem;
  color: var(--muted-soft);
}

.legal-doc h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.legal-doc p,
.legal-doc li {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--muted);
}

.legal-doc ul {
  padding-left: 1.2rem;
}

@media (max-width: 900px) {
  .fn-hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-inner {
    flex-direction: column;
    align-items: stretch;
  }
}