/* =========================================================
   Arcas Digital LLC - "Night Atlas / Field Guide"
   Pine night sky bookends; warm paper field-guide pages.
   ========================================================= */

:root {
  /* Night */
  --pine: #13271f;
  --pine-deep: #0e1e18;
  --pine-line: rgba(246, 247, 242, 0.16);
  --starlight: #f2ead7;

  /* Day */
  --paper: #f6f7f2;
  --paper-alt: #edefe5;
  --ink: #1c2a23;
  --muted: #58675e;
  --line: #d4d9ca;

  /* Accents */
  --gold: #d9a441;
  --gold-deep: #b9872f;
  --moss: #41705a;

  --container: 1080px;
  --header-h: 64px;

  --font-display: 'Young Serif', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Albert Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'Spline Sans Mono', 'Cascadia Code', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Shared small type ---------- */

.kicker {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 18px;
}

.kicker-gold { color: var(--gold); }

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  background: var(--pine);
  color: var(--starlight);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.site-header.scrolled { border-bottom-color: var(--pine-line); }

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: 0.01em;
}

.brand-mark { color: var(--gold); flex-shrink: 0; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 9px 16px;
  color: var(--starlight);
  opacity: 0.75;
  transition: opacity 0.2s ease;
}

.nav-link:hover { opacity: 1; }

.nav-cta {
  opacity: 1;
  color: var(--pine-deep);
  background: var(--gold);
  border-radius: 2px;
  margin-left: 10px;
  transition: background 0.2s ease;
}

.nav-cta:hover { background: #e4b35a; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--starlight);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background: linear-gradient(180deg, var(--pine-deep) 0%, var(--pine) 100%);
  color: var(--starlight);
  padding: calc(var(--header-h) + 96px) 0 72px;
  overflow: hidden;
}

.hero-sky {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.5vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 14em;
  text-wrap: balance;
  margin-bottom: 28px;
}

.hero-accent { color: var(--gold); }

.hero-sub {
  max-width: 34em;
  font-size: 1.12rem;
  color: rgba(242, 234, 215, 0.78);
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-myth {
  position: relative;
  z-index: 2;
  margin-top: 84px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: rgba(242, 234, 215, 0.45);
  padding: 0 28px;
  max-width: calc(var(--container) + 56px);
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: 2px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-gold {
  background: var(--gold);
  color: var(--pine-deep);
}

.btn-gold:hover { background: #e4b35a; }

.btn-outline {
  border: 1px solid var(--pine-line);
  color: var(--starlight);
}

.btn-outline:hover { border-color: var(--gold); color: var(--gold); }

/* ---------- Sections ---------- */

.section { padding: 104px 0; }
.section-alt { background: var(--paper-alt); }

.section-head {
  max-width: 560px;
  margin-bottom: 72px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin-bottom: 18px;
}

.section-lede {
  color: var(--muted);
  font-size: 1.08rem;
}

/* ---------- Field-guide plates ---------- */

.plate-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
}

.plate {
  grid-column: span 2;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 26px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.plate:hover {
  border-color: var(--moss);
  transform: translateY(-4px);
}

.plate-lg { grid-column: span 3; padding: 34px 32px 30px; }
.plate-wide { grid-column: span 6; padding: 34px 32px 30px; }

.plate-rule {
  height: 5px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  margin-bottom: 10px;
}

.plate-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 9px;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--dot, var(--gold));
  flex-shrink: 0;
}

.plate-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.65rem;
  letter-spacing: -0.01em;
}

.plate-lg .plate-name, .plate-wide .plate-name { font-size: 2rem; }

.plate-desc {
  color: var(--muted);
  font-size: 0.98rem;
  flex-grow: 1;
  max-width: 44em;
}

.plate-meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.plate-wide-inner {
  display: flex;
  align-items: center;
  gap: 48px;
}

.plate-wide-inner > div {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.plate-globe {
  width: 150px;
  flex-shrink: 0;
  color: var(--moss);
  opacity: 0.85;
}

/* ---------- About / colophon ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: start;
}

.about-body p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
  max-width: 36em;
}

.colophon {
  margin-top: 40px;
  border-top: 1px solid var(--ink);
}

.colophon-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.colophon-row dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
  padding-top: 3px;
}

.colophon-row dd { font-size: 0.98rem; }

/* ---------- Contact ---------- */

.contact {
  background: linear-gradient(180deg, var(--pine) 0%, var(--pine-deep) 100%);
  color: var(--starlight);
  padding: 110px 0 0;
}

.contact-inner {
  text-align: center;
  padding-bottom: 96px;
}

.contact-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 4rem);
  margin-bottom: 18px;
}

.contact-sub {
  color: rgba(242, 234, 215, 0.7);
  margin-bottom: 44px;
}

.contact-mail {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3.4vw, 2.1rem);
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 6px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.contact-mail:hover { color: #e4b35a; border-color: #e4b35a; }

.contact-address {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: rgba(242, 234, 215, 0.5);
  margin-top: 44px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--pine-line);
  padding: 30px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242, 234, 215, 0.6);
  transition: color 0.2s ease;
}

.footer-links a:hover { color: var(--gold); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: rgba(242, 234, 215, 0.45);
}

/* ---------- Legal pages ---------- */

.legal-page {
  max-width: 720px;
  margin: 0 auto;
  padding: calc(var(--header-h) + 72px) 28px 96px;
}

.legal-page h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 2.3rem;
  margin-bottom: 10px;
}

.legal-updated {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 44px;
}

.legal-page h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  margin: 40px 0 12px;
}

.legal-page p, .legal-page li {
  color: var(--muted);
  margin-bottom: 12px;
}

.legal-page ul {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-page a { color: var(--moss); text-decoration: underline; text-underline-offset: 3px; }
.legal-page a:hover { color: var(--gold-deep); }

/* Legal pages reuse the dark footer outside the contact band */
body.legal .site-footer {
  background: var(--pine);
  color: var(--starlight);
  border-top: 0;
  padding: 36px 0;
}

/* ---------- Reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Focus / motion ---------- */

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .plate, .plate:hover { transform: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 920px) {
  .plate, .plate-lg { grid-column: span 3; }
  .plate-wide { grid-column: span 6; }
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 640px) {
  .plate, .plate-lg, .plate-wide { grid-column: span 6; }
  .section { padding: 76px 0; }
  .hero { padding-top: calc(var(--header-h) + 64px); }
  .hero-myth { text-align: left; margin-top: 56px; }
  .plate-wide-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .plate-globe { width: 110px; align-self: flex-end; }
  .colophon-row { grid-template-columns: 1fr; gap: 2px; }

  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--pine-deep);
    border-bottom: 1px solid var(--pine-line);
    padding: 14px 28px 22px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link { display: block; text-align: center; padding: 13px; }
  .nav-cta { margin-left: 0; margin-top: 6px; }
}