/* RoamGauge site stylesheet (/). Every :root value mirrors src/constants/theme.ts
   by name; docs/design/DESIGN.md is the shared reference. No hex outside :root. */
:root {
  color-scheme: dark;

  --color-background: #0B0E12;
  --color-surface: #141920;
  --color-surface-raised: #1B222B;
  --color-border: #232B35;
  --color-border-accent: #2A5B6B;
  --color-border-dashed: #33404D;
  --color-border-control: #7C8B9D;
  --color-text: #E8EDF2;
  --color-text-secondary: #8A95A3;
  --color-text-tertiary: #C7CFD8;
  --color-text-dim: #7C8B9D;
  --color-accent: #4CC2E8;
  --color-accent-on-fill: #06232E;
  --color-accent-fill-soft: #10222B;
  --color-green: #32D179;
  --color-green-bg: #0F2018;
  --color-amber: #E5A63C;
  --color-amber-bg: #241D10;
  --color-amber-banner-border: #4A3A18;
  --color-red: #E5564C;
  --color-red-bg: #241214;
  --color-scrim: rgba(0, 0, 0, 0.6);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-pill: 999px;

  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-gutter: 10px;
  --space-md: 12px;
  --space-inset: 14px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-xxl: 24px;

  --row-height: 48px;
  --hit-min: 44px;
  --hit-control: 48px;
  --hit-cta: 52px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, Menlo, monospace;

  /* Type scale: size / line height, same steps as theme.ts. The page's own
     display sizes are declared here too, never inline. */
  --text-display: 28px / 34px;
  --text-title: 22px / 28px;
  --text-heading: 20px / 26px;
  --text-body-large: 16px / 22px;
  --text-body: 15px / 21px;
  --text-body-small: 14px / 20px;
  --text-caption: 13px / 18px;
  --text-footnote: 12px / 17px;
  --text-overline: 12px / 16px;
  --text-button: 17px / 22px;
  --text-page-body: 1.0625rem / 1.6;
  --text-page-h1: clamp(28px, 8vw, 40px);
  --text-page-h2: 22px / 28px;
  --text-page-meta: 0.875rem / 1.6;

  --opacity-hovered: 0.85;
  --opacity-pressed: 0.7;
  --opacity-disabled: 0.4;
}


* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font: var(--text-page-body) var(--font-sans);
}

/* Skip link: visually hidden until it takes keyboard focus. */
.skip {
  position: absolute;
  left: var(--space-lg);
  top: -100px;
  padding: var(--space-gutter) var(--space-lg);
  background: var(--color-accent);
  color: var(--color-accent-on-fill);
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
  z-index: 10;
}

.skip:focus-visible {
  top: var(--space-lg);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Bare elements */
h1 {
  font-size: var(--text-page-h1);
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0 0 var(--space-lg);
  overflow-wrap: anywhere;
}

h2 {
  font: 700 var(--text-page-h2) var(--font-sans);
  letter-spacing: -0.2px;
  margin: 0 0 var(--space-lg);
}

h3 {
  font: 700 var(--text-body-large) var(--font-sans);
  margin: 0 0 var(--space-sm);
}

p,
li {
  color: var(--color-text-tertiary);
}

p {
  margin: 0 0 var(--space-md);
  max-width: 680px;
}

ul {
  margin: 0;
  padding-left: var(--space-xl);
}

li {
  margin: 6px 0;
}

figure {
  margin: 0;
}

picture,
img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  overflow-wrap: anywhere;
}

a:hover {
  text-decoration: underline;
}

a:active {
  opacity: var(--opacity-pressed);
}

/* Keyboard focus is always visible; pointer focus never draws a ring. */
:where(a, button, input, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible),
main:focus {
  outline: none;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 0 max(var(--space-xl), env(safe-area-inset-right)) 0 max(var(--space-xl), env(safe-area-inset-left));
}

.site-header-inner {
  max-width: 1040px;
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-height: var(--hit-min);
  text-decoration: none;
  color: var(--color-text);
}

.brand:hover {
  text-decoration: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-weight: 700;
  font-size: var(--text-body-large);
}

.brand-overline {
  color: var(--color-accent);
  font: 700 var(--text-overline) var(--font-sans);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.site-nav {
  display: none;
}

.site-nav ul {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-xl);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav li {
  margin: 0;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: var(--hit-min);
  text-decoration: none;
}

.site-nav a:hover {
  text-decoration: underline;
}

/* Main */
main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 max(var(--space-xl), env(safe-area-inset-right)) 64px max(var(--space-xl), env(safe-area-inset-left));
}

.hero {
  display: grid;
  gap: var(--space-xxl);
  padding: clamp(32px, 8vw, 72px) 0 var(--space-xl);
}

.hero-sub {
  font-size: 1.125rem;
  line-height: 1.55;
  max-width: 680px;
}

.hero-media,
.answers-media {
  display: flex;
  justify-content: center;
}

.availability {
  margin-top: var(--space-xl);
}

.availability-note {
  color: var(--color-text-secondary);
  font: var(--text-caption) var(--font-sans);
  margin: var(--space-md) 0 0;
}

/* One primary action on the page. */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--hit-cta);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-accent-on-fill);
  font: 700 var(--text-button) var(--font-sans);
  text-decoration: none;
  text-align: center;
}

.cta:hover {
  text-decoration: none;
  filter: brightness(1.08);
}

.cta:active {
  transform: translateY(1px);
  filter: brightness(0.92);
  opacity: 1;
}

.cta[aria-disabled="true"],
button:disabled {
  opacity: var(--opacity-disabled);
  cursor: not-allowed;
  pointer-events: none;
}

.store-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.store-badges li {
  margin: 0;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  min-height: var(--hit-min);
  min-width: var(--hit-min);
}

/* CSS phone */
.phone-frame {
  width: 100%;
  max-width: 280px;
  margin: 0;
  overflow: hidden;
  border: 3px solid var(--color-border-dashed);
  border-radius: 36px;
  background: var(--color-surface);
}

.hero .phone-frame {
  max-width: 320px;
}

.phone-frame picture,
.phone-frame img.screenshot {
  display: block;
  width: 100%;
  height: auto;
}

/* Sections */
.section {
  padding: var(--space-xxl) 0;
}

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

.check-list,
.guide-list {
  max-width: 680px;
}

.answers {
  display: grid;
  gap: var(--space-xxl);
}

.cards {
  display: grid;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.card {
  margin: 0;
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.card p {
  margin-bottom: var(--space-md);
}

.card .card-tie {
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 0;
}

/* Plans table */
.plans {
  width: 100%;
  max-width: 680px;
  border-collapse: collapse;
  caption-side: bottom;
}

.plans caption {
  color: var(--color-text-secondary);
  font: var(--text-caption) var(--font-sans);
  text-align: left;
  padding-top: var(--space-md);
}

.plans th,
.plans td {
  padding: var(--space-md) var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  color: var(--color-text-tertiary);
}

.plans thead th {
  color: var(--color-text);
  font-weight: 700;
  border-bottom-color: var(--color-border-accent);
}

.plans tbody th[scope="row"] {
  color: var(--color-text);
  font-weight: 600;
}

.yes {
  color: var(--color-green);
  font-weight: 700;
}

.no {
  color: var(--color-text-dim);
}

@media (max-width: 599px) {
  .plans,
  .plans tbody {
    display: block;
  }

  .plans caption {
    display: block;
    padding: 0 0 var(--space-md);
  }

  .plans thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  .plans tr {
    display: block;
    margin-bottom: var(--space-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .plans tbody th[scope="row"] {
    display: block;
    width: 100%;
    padding: var(--space-md) var(--space-inset);
  }

  .plans td {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-sm) var(--space-inset);
    border-bottom: 0;
    text-align: right;
  }

  .plans td::before {
    content: attr(data-label);
    color: var(--color-text-secondary);
    font-weight: 600;
    text-align: left;
  }
}

/* Guides */
.guide-list {
  list-style: none;
  padding: 0;
}

.guide-list li {
  margin: 0 0 var(--space-lg);
}

.guide-list a {
  display: block;
  min-height: var(--hit-min);
  padding: var(--space-sm) 0;
  font-weight: 600;
}

.guide-list p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Footer */
.site-footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: var(--space-xxl) max(var(--space-xl), env(safe-area-inset-right)) 48px max(var(--space-xl), env(safe-area-inset-left));
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font: var(--text-caption) var(--font-sans);
}

.site-footer p {
  color: var(--color-text-secondary);
  margin: var(--space-sm) 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin: 0;
  color: var(--color-text-secondary);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: var(--hit-min);
}

.site-footer .copyright {
  font-size: var(--text-footnote);
}

@media (min-width: 768px) {
  .site-nav {
    display: block;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .site-header,
  main,
  .site-footer {
    padding-right: max(var(--space-xxl), env(safe-area-inset-right));
    padding-left: max(var(--space-xxl), env(safe-area-inset-left));
  }
}

@media (min-width: 900px) {
  .hero,
  .answers {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
  }
}

@media (min-width: 1100px) {
  .section {
    padding: 48px 0;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .cta,
  a {
    transition: filter 0.12s, transform 0.12s, opacity 0.12s;
  }
}