/* Piuma Apps — "A · Feather" */

:root {
  /* Colors */
  --sage: #DDE7DC;
  --linen: #F7F5F0;
  --white: #FFFFFF;
  --accent: #4E6B58;
  --accent-hover: #3A5243;
  --ink: #2B3A31;
  --ink-soft: #44564B;
  --body: #4A5A50;
  --muted: #5C6A60;
  --line: #E6E3DA;
  --moss: #33433A;
  --moss-text: #CBD6CC;

  /* Type */
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --container: 1120px;
  --gutter: 20px;
  --section-y: 60px;
  --radius-card: 24px;
  --radius-icon: 22px;
}

/* ---------- Base ---------- */

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

body {
  margin: 0;
  background: var(--linen);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  color: var(--ink);
  margin: 0;
}

p {
  margin: 0;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
}

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  background: var(--ink);
  color: var(--white);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
}

.skip-link:focus {
  top: 12px;
  color: var(--white);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-y) 0;
}

.serif {
  font-family: var(--font-serif);
  font-weight: 400;
}

.h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: -0.5px;
}

.eyebrow {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn:focus-visible {
  border-radius: 999px;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

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

.btn-dark {
  background: var(--ink);
  color: var(--white);
}

.btn-dark:hover {
  background: var(--accent-hover);
  color: var(--white);
}

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

.site-top {
  background: var(--sage);
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1;
}

.logo:hover {
  color: var(--ink);
}

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

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink-soft);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--accent-hover);
}

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

.hero {
  text-align: center;
  padding: 56px 0 64px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -1px;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  max-width: 600px;
  margin: 24px auto 0;
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 36px;
}

/* ---------- Why ---------- */

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

.promises {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 48px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.promise-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 40px;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 18px;
}

.promise h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 10px;
}

/* ---------- Apps ---------- */

.apps .h2 {
  margin-bottom: 36px;
}

.app-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  background: var(--sage);
  border-radius: var(--radius-card);
  padding: 28px;
}

.app-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  flex-shrink: 0;
  background: var(--white);
  border-radius: var(--radius-icon);
}

.app-body {
  flex: 1;
  min-width: 0;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.app-card h3 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 8px;
}

.app-card p {
  max-width: 520px;
}

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

.contact {
  background: var(--moss);
  color: var(--white);
  text-align: center;
}

.contact .h2 {
  color: var(--white);
}

.contact p {
  color: var(--moss-text);
  margin-top: 16px;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 24px;
  font-size: 22px;
  color: var(--sage);
}

.contact-email:hover {
  color: var(--white);
}

.contact :focus-visible {
  outline-color: var(--sage);
}

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

.site-footer {
  background: var(--linen);
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 20px;
  padding-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--muted);
}

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

/* ---------- Content pages (privacy, support, 404) ---------- */

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--section-y) var(--gutter);
}

.page h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: -0.5px;
}

.page h2 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  margin: 40px 0 10px;
}

.page p + p,
.page p + ul,
.page ul + p {
  margin-top: 12px;
}

.page ul {
  margin: 0;
  padding-left: 22px;
}

.page li + li {
  margin-top: 6px;
}

.page-meta {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.page-lead {
  margin-top: 20px;
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page .big-email {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 16px;
  font-size: 22px;
}

.faq {
  margin-top: 8px;
  border-top: 1px solid var(--line);
}

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

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 12px 0;
  cursor: pointer;
  color: var(--ink);
  font-weight: 500;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-size: 22px;
  line-height: 1;
  color: var(--accent);
  flex-shrink: 0;
}

.faq details[open] summary::after {
  content: "\2212";
}

.faq details p {
  padding-bottom: 16px;
}

.page-404 {
  text-align: center;
}

.page-404 p {
  margin: 16px 0 32px;
}

/* ---------- Desktop ---------- */

@media (min-width: 768px) {
  :root {
    --gutter: 32px;
    --section-y: 96px;
  }

  .site-header .container {
    padding-top: 24px;
    padding-bottom: 24px;
  }

  .site-nav ul {
    gap: 0 32px;
  }

  .hero {
    padding: 88px 0 104px;
  }

  .hero h1 {
    font-size: 96px;
  }

  .h2,
  .page h1 {
    font-size: 56px;
  }

  .app-card {
    flex-direction: row;
    align-items: center;
    gap: 32px;
    padding: 40px;
  }

  .app-card h3 {
    font-size: 24px;
  }

  .app-action {
    flex-shrink: 0;
  }
}