/*
  Crumbly website styles. No frameworks, no web fonts, no tracking.

  Brand colors (from the app icon). Adjust the exact values here; everything
  else is derived from them. Contrast (WCAG AA): brown text passes on white,
  yellow and cookie; never use cookie or yellow as text on a light background.
*/
:root {
  --brand-yellow: #FDE721;
  --brand-cookie: #EFB251;
  --brand-brown: #541911;

  /* Neutrals derived from the brand brown. */
  --paper: #FFFBF0;
  --ink: var(--brand-brown);
  --ink-soft: color-mix(in srgb, var(--brand-brown) 82%, white);
  --line: color-mix(in srgb, var(--brand-brown) 14%, transparent);

  --radius-lg: 28px;
  --radius-md: 18px;
  --shadow: 0 6px 0 var(--line);
  --page-width: 68rem;
  --text-width: 42rem;

  /* Rounded where the system has it (Apple devices), clean sans-serif elsewhere. */
  --font: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.125rem;
  line-height: 1.65;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 3px;
}

:focus-visible {
  outline: 4px solid var(--ink);
  outline-offset: 3px;
  border-radius: 6px;
}

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

h1 {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  margin: 0 0 0.4rem;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 1.9rem);
  margin: 2.6rem 0 0.8rem;
}

h3 {
  font-size: 1.25rem;
  margin: 1.8rem 0 0.4rem;
}

/* Skip link: hidden until focused with the keyboard. */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.6rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius-md);
  font-weight: 700;
}

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

.wrap {
  width: min(100% - 2.5rem, var(--page-width));
  margin-inline: auto;
}

/* Header */

.site-header {
  background: var(--brand-yellow);
  border-bottom: 3px solid var(--ink);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-block: 0.9rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 2px solid var(--ink);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--paper);
  box-shadow: inset 0 0 0 2px var(--ink);
}

/* Landing page */

.hero {
  background: var(--brand-yellow);
  padding-block: 3rem 3.5rem;
  text-align: center;
}

.hero-icon {
  width: 160px;
  height: 160px;
  border-radius: 36px;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow);
}

.hero .subtitle {
  margin: 0 0 1rem;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 700;
}

.hero .lead {
  max-width: var(--text-width);
  margin: 0 auto 2rem;
  font-size: 1.2rem;
}

.store-button {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  min-width: 15rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-md);
  background: var(--ink);
  color: var(--paper);
  font-weight: 800;
  font-size: 1.25rem;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 5px 0 color-mix(in srgb, var(--brand-brown) 60%, black);
}

.store-button small {
  font-size: 0.8rem;
  font-weight: 600;
}

.store-button:hover {
  transform: translateY(1px);
  box-shadow: 0 4px 0 color-mix(in srgb, var(--brand-brown) 60%, black);
}

.hero .fine-print {
  margin: 1.2rem 0 0;
  font-size: 1rem;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
  margin: 3rem 0;
  padding: 0;
  list-style: none;
}

.feature {
  padding: 1.5rem;
  border: 3px solid var(--ink);
  border-radius: var(--radius-lg);
  background: white;
  box-shadow: var(--shadow);
}

.feature .badge {
  display: inline-grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  margin-bottom: 0.6rem;
  border-radius: 50%;
  background: var(--brand-cookie);
  border: 2px solid var(--ink);
  font-weight: 800;
  font-size: 1.05rem;
}

.feature .badge-symbol {
  font-size: 1.7rem;
  line-height: 1;
}

.feature h2 {
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
}

.feature p {
  margin: 0;
}

.promise {
  margin: 0 0 3rem;
  padding: 1.5rem 1.75rem;
  border-radius: var(--radius-lg);
  background: var(--brand-cookie);
  border: 3px solid var(--ink);
}

.promise h2 {
  margin-top: 0;
}

.promise ul {
  margin: 0;
  padding-left: 1.3rem;
}

/* Text pages (privacy, terms, support) */

.page {
  padding-block: 2.5rem 3.5rem;
}

.prose {
  max-width: var(--text-width);
}

.prose .meta {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
}

.summary {
  margin: 1.5rem 0 2rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--brand-yellow);
  border: 3px solid var(--ink);
}

.summary h2 {
  margin-top: 0;
  font-size: 1.35rem;
}

.summary ul {
  margin: 0;
  padding-left: 1.3rem;
}

.prose li + li {
  margin-top: 0.3rem;
}

.contact-card {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  background: white;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow);
}

.contact-card p {
  margin: 0.2rem 0;
}

.faq details {
  margin: 0.75rem 0;
  border: 3px solid var(--ink);
  border-radius: var(--radius-md);
  background: white;
}

.faq summary {
  padding: 0.9rem 1.2rem;
  font-weight: 700;
  cursor: pointer;
}

.faq details[open] summary {
  border-bottom: 2px solid var(--line);
}

.faq details > div {
  padding: 0.4rem 1.2rem 1rem;
}

/* Not-found page */

.not-found {
  padding-block: 4rem;
  text-align: center;
}

.not-found img {
  width: 140px;
  border-radius: 32px;
  border: 3px solid var(--ink);
}

/* Footer */

.site-footer {
  border-top: 3px solid var(--ink);
  background: var(--brand-yellow);
  padding-block: 1.75rem;
  font-size: 1rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  align-items: center;
  justify-content: space-between;
}

.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer a {
  font-weight: 700;
}

.site-footer p {
  margin: 0;
}

/* Small phones: keep all four nav links on one line. */
@media (max-width: 30rem) {
  .site-nav ul {
    gap: 0.25rem;
  }

  .site-nav a {
    padding: 0.35rem 0.6rem;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .store-button,
  .site-nav a {
    transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
  }
}

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