/* Nunito (SIL Open Font License), self-hosted variable font */
@font-face {
  font-family: "Nunito";
  font-style: normal;
  font-weight: 200 1000;
  font-display: block;
  src: url(fonts/nunito-latin-ext.woff2) format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Nunito";
  font-style: normal;
  font-weight: 200 1000;
  font-display: block;
  src: url(fonts/nunito-latin.woff2) format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --brand: #1CB0F6;
  --brand-dark: #1899D6;
  --bg: #FFFFFF;
  --text: #3C3C3C;
  --muted: #777777;
  --border: #E5E5E5;
  --field: #F7F7F7;
  --error: #FF4B4B;
  --font: "Nunito", system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161F23;
    --text: #F1F7FB;
    --muted: #8A9AA3;
    --border: #37464F;
    --field: #202F36;
  }
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 700;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
main {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 16px;
  text-align: center;
}
.logo { border-radius: 26px; margin-bottom: 24px; }
h1 {
  margin: 0;
  font-weight: 900;
  font-size: clamp(3rem, 14vw, 5.5rem);
  line-height: 1.05;
  color: var(--brand);
  letter-spacing: -0.01em;
}
.subtitle {
  margin: 8px 0 40px;
  font-size: clamp(1.25rem, 5vw, 1.75rem);
  color: var(--muted);
}
form { display: flex; gap: 12px; }
input, .btn {
  font: inherit;
  font-size: 1rem;
  border-radius: 16px;
  height: 52px;
}
input {
  flex: 1;
  min-width: 0;
  padding: 0 18px;
  background: var(--field);
  color: var(--text);
  border: 2px solid var(--border);
  outline: none;
  box-shadow: 0 4px 0 var(--border);
}
input::placeholder { color: var(--muted); }
input:focus { border-color: var(--brand); box-shadow: 0 4px 0 var(--brand); }
input.invalid { border-color: var(--error); box-shadow: 0 4px 0 var(--error); }
/* Button component: set --btn-color on any .btn (or a parent) to recolor it */
.btn {
  --btn-color: var(--brand);
  --btn-depth: 4px;
  --btn-shadow: color-mix(in srgb, var(--btn-color) 80%, black);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 130px;
  padding: 0 22px;
  border: 0;
  background: var(--btn-color);
  color: #fff;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  cursor: pointer;
  box-shadow: 0 var(--btn-depth) 0 var(--btn-shadow);
  /* release: springy overshoot back to rest */
  transition: transform .35s cubic-bezier(.34, 1.8, .64, 1),
              box-shadow .35s cubic-bezier(.34, 1.8, .64, 1),
              background-color .2s, filter .15s;
}
.btn:hover { filter: brightness(.9); }
.btn:active {
  transform: translateY(var(--btn-depth)) scale(.96);
  box-shadow: 0 0 0 var(--btn-shadow);
  transition: transform .18s cubic-bezier(.2, .8, .3, 1), box-shadow .18s cubic-bezier(.2, .8, .3, 1), background-color .2s, filter .15s;
}
.btn:focus-visible { outline: 3px solid var(--btn-color); outline-offset: 3px; }
.btn svg { width: 24px; height: 24px; }
.btn:disabled { cursor: default; pointer-events: none; filter: none; }
.btn.success { --btn-color: #58CC02; }
.btn.success .label, .btn:not(.success) .check { display: none; }
#msg { margin: 16px 0 0; font-size: .95rem; color: var(--muted); min-height: 1.4em; }
#msg.ok { color: var(--brand); }
#msg.err { color: var(--error); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
@media (max-width: 480px) {
  form { flex-direction: column; }
  .btn { width: 100%; }
}

.site-footer a, .back { color: var(--muted); text-decoration: none; }
.site-footer a, .back { transition: filter .15s; }
.site-footer a:hover, .back:hover { filter: brightness(.8); }
.site-footer { max-width: 1040px; margin: 48px auto 0; padding: 0 16px 64px; }
.footer-inner { border-top: 2px solid var(--border); padding-top: 48px; display: flex; flex-wrap: wrap; gap: 40px 96px; }
.site-footer nav { display: flex; flex-direction: column; gap: 14px; min-width: 120px; }
.site-footer h2 { margin: 0 0 6px; font-size: 1rem; font-weight: 900; color: var(--muted); }
.site-footer a { font-size: .95rem; }
.back { display: inline-flex; align-items: center; gap: 8px; }
.back .arrow { display: inline-block; transition: transform .35s cubic-bezier(.34, 1.8, .64, 1); }
.back:hover .arrow { transform: translateX(-6px); }

/* Legal pages */
.legal main { max-width: 720px; margin: 0 auto; padding: 40px 16px 80px; text-align: left; }
.legal h1 { font-size: clamp(2rem, 8vw, 3rem); margin: 24px 0 4px; }
.legal h2 { font-size: 1.25rem; margin: 32px 0 8px; color: var(--brand); }
.legal p, .legal li { font-weight: 700; line-height: 1.6; font-size: 1rem; }
.legal ul { padding-left: 22px; }
.legal a { color: var(--brand); }
.legal .updated { color: var(--muted); margin: 0 0 24px; }
.legal strong { font-weight: 900; }

/* Intro animation */
/* Marshmallow: drops in, squashes on landing, then wobbles to rest */
@keyframes jelly {
  0%   { opacity: 0; transform: translateY(-50px) scale(.92, 1.12); }
  30%  { opacity: 1; transform: translateY(0) scale(1.14, .76); }
  48%  { transform: scale(.92, 1.14); }
  64%  { transform: scale(1.06, .93); }
  80%  { transform: scale(.98, 1.03); }
  100% { opacity: 1; transform: none; }
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}
h1        { animation: jelly 1.3s cubic-bezier(.3, 0, .3, 1) .15s both; transform-origin: 50% 100%; }
.subtitle { animation: fade-up .6s ease .35s both; }
form      { animation: fade-up .6s ease .5s both; }
#msg { animation: fade-up .6s ease .65s both; }
.legal h1 { animation: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

/* Hero + FAQ */
.hero form { width: 100%; }
.hero { min-height: 100svh; display: flex; flex-direction: column; justify-content: center; align-items: center; max-width: 520px; margin: 0 auto; }
.faq { padding: 24px 0 0; text-align: left; }
.faq h2 { text-align: center; font-weight: 900; font-size: clamp(1.5rem, 6vw, 2rem); margin: 0 0 24px; }
.faq details { overflow: hidden; border: 2px solid var(--border); border-radius: 16px; background: var(--field); margin-bottom: 12px; box-shadow: 0 4px 0 var(--border); }
.faq summary {
  list-style: none; cursor: pointer; padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none; width: 10px; height: 10px; border: solid var(--brand); border-width: 0 3px 3px 0;
  transform: rotate(45deg) translateY(-2px); transition: transform .3s cubic-bezier(.34, 1.8, .64, 1);
}
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-2px); }
.faq details[open] { border-color: var(--brand); box-shadow: 0 4px 0 var(--brand); }
.faq details p { margin: 0; padding: 0 18px 18px; color: var(--muted); line-height: 1.55; }

/* About */
.about { text-align: left; padding: 24px 0 8px; }
.about h2 { text-align: center; font-weight: 900; font-size: clamp(1.5rem, 6vw, 2rem); margin: 0 0 16px; }
.about h3 { font-size: 1.15rem; margin: 28px 0 6px; color: var(--brand); }
.about p { margin: 0; color: var(--muted); line-height: 1.6; }

/* FAQ hover */
.faq details {
  transition: transform .2s ease-out, border-color .2s, box-shadow .2s ease-out;
}
.faq details:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: 0 7px 0 var(--brand); }
.faq summary:hover { color: var(--brand); }
.faq summary { transition: color .2s; }

/* Blog */
.post-card { display: block; overflow: hidden; border: 2px solid var(--border); border-radius: 16px; background: var(--field); box-shadow: 0 4px 0 var(--border); margin-bottom: 20px; color: inherit; text-decoration: none; transition: transform .35s cubic-bezier(.34, 1.8, .64, 1), box-shadow .35s cubic-bezier(.34, 1.8, .64, 1); }
.post-card:hover { border-color: var(--brand); box-shadow: 0 4px 0 var(--brand); }
.post-card:active { transform: translateY(4px); box-shadow: 0 0 0 var(--brand); }
.post-card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.post-card-text { padding: 18px 20px 20px; }
.legal .post-card h2 { margin: 0 0 4px; font-size: 1.35rem; color: var(--text); }
.legal .post-card p { margin: 6px 0 0; color: var(--muted); }
.legal .post-card .post-date { margin: 0; font-size: .85rem; }
.post-cover { display: block; width: 100%; border-radius: 16px; margin: 0 0 24px; }
.prose { overflow-wrap: anywhere; }
.prose h2, .prose h3, .prose h4 { color: var(--brand); margin: 32px 0 8px; line-height: 1.25; }
.prose h3 { font-size: 1.1rem; } .prose h4 { font-size: 1rem; }
.prose img { max-width: 100%; height: auto; border-radius: 12px; }
.prose figure { margin: 24px 0; }
.prose figcaption { color: var(--muted); font-size: .9rem; margin-top: 8px; text-align: center; }
.prose blockquote { margin: 20px 0; padding: 4px 18px; border-left: 4px solid var(--brand); color: var(--muted); }
.prose pre { overflow-x: auto; padding: 14px 18px; border-radius: 12px; background: var(--field); border: 2px solid var(--border); }
.prose code { font-family: ui-monospace, Menlo, monospace; font-size: .9em; background: var(--field); padding: 2px 6px; border-radius: 6px; }
.prose pre code { padding: 0; background: none; }
.prose hr { border: 0; border-top: 2px solid var(--border); margin: 32px 0; }
.prose ol { padding-left: 22px; }