:root {
  --bg: #14140f;
  --bg-elevated: #191914;
  --text: #eae6dc;
  --muted: #948d7e;
  --accent: #d1863f;
  --border: #2a2922;
  --max-width: 760px;

  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --font-sans: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

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

header {
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .brand {
  font-family: var(--font-mono);
  font-weight: 500;
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

nav .links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

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

.dropdown {
  position: relative;
}

.dropdown-trigger {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  line-height: inherit;
  letter-spacing: 0.03em;
}

.dropdown-trigger::-webkit-details-marker {
  display: none;
}

.dropdown-trigger:hover {
  color: var(--accent);
}

.dropdown-trigger::after {
  content: "\25BE";
  font-size: 0.7rem;
}

.dropdown[open] .dropdown-trigger::after {
  content: "\25B4";
}

.dropdown-menu {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 160px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.75rem 0.4rem 0.4rem;
  z-index: 10;
}

.dropdown[open] .dropdown-menu {
  display: flex;
}

.dropdown-menu a {
  display: block;
  padding: 0.5rem 0.6rem;
  border-radius: 3px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.dropdown-menu a:hover {
  background: var(--border);
  color: var(--accent);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.25rem 5rem;
}

h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 2.4rem;
  margin: 0 0 0.75rem;
  color: var(--text);
}

h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.4rem;
  margin-top: 3rem;
  color: var(--text);
}

h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
}

p {
  color: var(--text);
}

.about-layout {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  margin-top: 2rem;
}

.about-layout .portrait {
  width: 240px;
  height: 240px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.about-layout p {
  margin: 0;
}

@media (max-width: 560px) {
  .about-layout {
    flex-direction: column;
  }
  .about-layout .portrait {
    width: 180px;
    height: 180px;
  }
}

.lede {
  color: var(--muted);
  font-size: 1.15rem;
}

.tab-toggle {
  display: flex;
  gap: 1.75rem;
  margin-bottom: 1.5rem;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.entry.hidden {
  display: none;
}

.entry {
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
}

.entry:last-child {
  border-bottom: 1px solid var(--border);
}

.entry .meta {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

a.accent-link {
  color: var(--accent);
}

.calc-form {
  display: grid;
  gap: 1.25rem;
  margin: 2.5rem 0 3rem;
  max-width: 420px;
}

.calc-form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.calc-form input,
.calc-form select {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.6rem 0.7rem;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
}

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

.input-prefix {
  position: relative;
}

.input-prefix span {
  position: absolute;
  left: 0.7rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.input-prefix input {
  width: 100%;
  padding-left: 1.5rem;
}

.field-hint {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.4;
}

.calc-submit {
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 4px;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  justify-self: start;
}

.calc-submit:hover {
  opacity: 0.9;
}

.calc-result {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  margin-bottom: 3rem;
  background: var(--bg-elevated);
}

.calc-result.hidden {
  display: none;
}

.calc-result .headline {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.calc-result .subline {
  color: var(--muted);
  margin: 0;
}

.calc-note {
  font-size: 0.8rem;
  color: var(--muted);
}

.main-wide {
  max-width: 960px;
}

.access-map {
  width: 100%;
  height: 560px;
  margin-top: 2rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #e5e2d9;
}

.map-caption {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0.6rem 0 0;
}

.leaflet-popup-content {
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.popup-notes {
  color: #6b6558;
  font-size: 0.82rem;
}

.popup-directions {
  color: var(--accent);
  font-size: 0.82rem;
  font-family: var(--font-mono);
}