/*
 * Banter website: one stylesheet for every page.
 * Controls and text are black, white and gray. The one accent color is guide-sign green,
 * used only for sign plates, as on a road sign. Dark mode follows the phone or computer.
 */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f3f4f5;
  --text: #111214;
  --muted: #4a4e55;
  --line: #d5d8dc;
  --strong-line: #111214;
  --button-bg: #111214;
  --button-text: #ffffff;
  --accent: #00663f;
  --on-accent: #ffffff;
  --focus: #111214;
  --radius: 0.5rem;
  --gutter: 1rem;
  --measure: 44rem;
  --wide: 68rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181a;
    --surface: #222428;
    --text: #f1f2f3;
    --muted: #b7bbc1;
    --line: #3a3d42;
    --strong-line: #f1f2f3;
    --button-bg: #f1f2f3;
    --button-text: #111214;
    --focus: #f1f2f3;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
  -webkit-hyphens: auto;
  hyphens: auto;
}

h1 {
  font-size: clamp(1.75rem, 1.4rem + 2vw, 3rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.625rem;
  margin: 0 0 0.75rem;
}

h3 {
  font-size: 1.1875rem;
  margin: 0 0 0.5rem;
}

p,
ul,
ol,
dl {
  margin: 0 0 1rem;
}

a {
  color: var(--text);
  overflow-wrap: anywhere;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* The exit arrow marks a link that leaves this website. */
a.ext::after {
  content: "\00a0\2197";
  content: "\00a0\2197" / "";
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.wrap {
  width: 100%;
  max-width: var(--wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

@media (min-width: 48rem) {
  :root {
    --gutter: 1.5rem;
  }
}

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -10rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 700;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 0.5rem;
}

/* Sign plate: a green rectangle with a thin white inset border, like a guide sign. */
.plate {
  display: inline-block;
  margin: 0;
  padding: 0.45em 0.95em;
  border-radius: 0.45em;
  background: var(--accent);
  color: var(--on-accent);
  box-shadow:
    inset 0 0 0 0.2em var(--accent),
    inset 0 0 0 0.32em var(--on-accent);
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.plate-brand {
  font-size: 1.375rem;
  padding: 0.35em 0.85em;
  letter-spacing: 0.03em;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 0.75rem;
}

.brand {
  display: inline-flex;
  text-decoration: none;
  border-radius: 0.5rem;
}

.nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.25rem;
}

.nav a {
  display: inline-block;
  padding-block: 0.65rem;
  font-weight: 600;
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 0.35em;
}

/* Home page */
.hero {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding-block: 2.5rem 3rem;
}

.lead {
  font-size: 1.1875rem;
  max-width: var(--measure);
}

.launch {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.launch li {
  padding: 0.6rem 1rem;
  border: 2px solid var(--strong-line);
  border-radius: var(--radius);
  background: var(--bg);
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.6rem 1.25rem;
  border: 2px solid var(--button-bg);
  border-radius: var(--radius);
  background: var(--button-bg);
  color: var(--button-text);
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--strong-line);
}

.small {
  font-size: 0.9375rem;
}

.muted {
  color: var(--muted);
}

.section {
  padding-block: 2.75rem;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.intro {
  max-width: var(--measure);
}

.cards,
.points {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
}

.card {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: var(--bg);
}

.card h3 {
  margin-top: 0.85rem;
}

.card > :last-child {
  margin-bottom: 0;
}

.points li {
  padding-left: 1rem;
  border-left: 4px solid var(--strong-line);
}

.points strong {
  display: block;
}

.price {
  margin: 0.25rem 0 1rem;
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
}

.price span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
}

.card ul {
  padding-left: 1.2rem;
}

.card li + li {
  margin-top: 0.35rem;
}

.note {
  margin-block: 1.25rem;
  padding: 1rem 1.25rem;
  border: 2px solid var(--strong-line);
  border-radius: var(--radius);
  max-width: var(--measure);
}

.note > :first-child {
  margin-top: 0;
}

.note > :last-child {
  margin-bottom: 0;
}

/* Inner pages */
.page-head {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding-block: 2rem 2.25rem;
}

.page-head .plate {
  margin-bottom: 1rem;
}

.page-head h1 {
  margin-bottom: 0.5rem;
}

.page-head p:last-child {
  margin-bottom: 0;
}

.prose {
  max-width: var(--measure);
  padding-block: 2rem 1rem;
}

.prose h2 {
  margin-top: 2.5rem;
  font-size: 1.5rem;
  scroll-margin-top: 1rem;
}

.prose h3 {
  margin-top: 1.75rem;
}

.prose li + li {
  margin-top: 0.4rem;
}

/* The status page: one table per standing, readable on a phone (each cell wraps). */
.status-table {
  width: 100%;
  margin: 1rem 0 1.5rem;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.status-table th,
.status-table td {
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.status-table thead th {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.status-table tbody th {
  font-weight: 700;
}

.status-table a {
  word-break: break-all;
}

@media (max-width: 40rem) {
  .status-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }

  .status-table tr {
    display: block;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--line);
  }

  .status-table th,
  .status-table td {
    display: block;
    padding: 0.1rem 0;
    border: 0;
  }
}

.toc {
  margin-bottom: 0.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.toc h2 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
}

.toc ol {
  margin: 0;
  padding-left: 1.5rem;
}

.toc li + li {
  margin-top: 0.15rem;
}

.toc a {
  display: inline-block;
  padding-block: 0.15rem;
}

.terms-list dt {
  margin-top: 1rem;
  font-weight: 700;
}

.terms-list dd {
  margin: 0.25rem 0 0;
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq details:first-of-type {
  border-top: 1px solid var(--line);
}

.faq summary {
  padding-block: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.faq details[open] summary {
  padding-bottom: 0.5rem;
}

.faq details > :not(summary) {
  margin-left: 1.15rem;
}

.faq details > :last-child {
  margin-bottom: 1.25rem;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.9375rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
}

.footer-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li a {
  display: inline-block;
  padding-block: 0.3rem;
}

.legal-line {
  margin-top: 1.5rem;
  color: var(--muted);
}

.legal-line p {
  margin-bottom: 0.25rem;
}

/* High-contrast modes draw borders where shadows and fills disappear. */
@media (forced-colors: active) {
  .plate,
  .button,
  .launch li,
  .card {
    border: 2px solid CanvasText;
  }
}

@media print {
  .site-header nav,
  .skip-link,
  .actions {
    display: none;
  }

  a.ext::after {
    content: "";
  }
}