/* Jotstamp site — the app's "Paper" palette, light and dark. */
:root {
  --bg: #FBF7EF;
  --bg-band: #F4EDE0;
  --surface: #FFFFFF;
  --text: #2B2621;
  --muted: #6B5F52;
  --faint: #9A8E80;
  --line: #E6DCCB;
  --accent: #8A5A2B;
  --accent-ink: #FFFFFF;
  --accent-soft: #F3DFC6;
  --phone: #1C1914;
  --phone-text: #EAE1D6;
  --phone-muted: #A3968A;
  --tag-teal: #4DB6AC;
  --tag-indigo: #9FA8DA;
  --tag-amber: #FFD54F;
  --tag-pink: #F48FB1;
  /* Tag colors on the page itself (the phone mock is always dark). */
  --page-teal: #00796B;
  --page-indigo: #3949AB;
  --page-amber: #9A6700;
  --page-pink: #C2185B;
  --heading: #E7BC8F;
  --radius: 14px;
  --serif: "Newsreader", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1C1914;
    --bg-band: #221E18;
    --surface: #2A251E;
    --text: #EAE1D6;
    --muted: #BFB2A3;
    --faint: #8F8375;
    --line: #3A332A;
    --accent: #E7BC8F;
    --accent-ink: #2F1A06;
    --accent-soft: #3F2D1C;
    --phone: #120F0C;
    --page-teal: #4DB6AC;
    --page-indigo: #9FA8DA;
    --page-amber: #FFD54F;
    --page-pink: #F48FB1;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
img { display: block; }
code {
  font: 500 0.88em var(--mono);
  background: var(--accent-soft);
  color: var(--text);
  padding: 0.1em 0.35em;
  border-radius: 5px;
}
h1, h2, h3 { margin: 0; line-height: 1.15; }
h1, h2 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.05rem; font-weight: 600; }
section { padding: clamp(56px, 9vw, 104px) clamp(16px, 4vw, 40px); }
section > * { max-width: 1080px; margin-left: auto; margin-right: auto; }
.band { background: var(--bg-band); }
/* Text blocks share the page's left edge but keep a readable line length. */
.narrow > *, .section-head > * { max-width: 720px; }
.eyebrow {
  margin: 0 0 12px;
  font: 600 0.78rem var(--sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 12px clamp(16px, 4vw, 40px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none;
  font: 600 1.15rem var(--serif);
}
.nav nav { display: flex; align-items: center; gap: clamp(12px, 2.5vw, 28px); }
.nav nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.nav nav a:hover { color: var(--text); }
.nav .nav-cta {
  color: var(--accent-ink); background: var(--accent);
  padding: 7px 14px; border-radius: 999px; font-weight: 500;
}
.nav .nav-cta:hover { color: var(--accent-ink); filter: brightness(1.08); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  transition: transform .15s ease, filter .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { background: var(--surface); }
.btn-lg { padding: 15px 30px; font-size: 1.08rem; }
/* A platform that isn't out yet: looks like a button, isn't one. */
.btn-soon {
  color: var(--faint); border: 1px dashed var(--line);
  cursor: default; font-weight: 500;
}
.btn-soon:hover { transform: none; }
.cta-center { justify-content: center; }
.fineprint { color: var(--faint); font-size: 0.88rem; margin: 14px 0 0; }

/* Hero */
.hero {
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 6vw, 72px); align-items: center;
  padding-top: clamp(48px, 8vw, 96px);
}
.lede { font-size: 1.15rem; color: var(--muted); margin: 20px 0 28px; max-width: 34em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Phone mock (drawn, with sample entries) */
.hero-phone { display: flex; justify-content: center; }
.phone {
  width: min(340px, 100%);
  background: var(--phone); color: var(--phone-text);
  border-radius: 34px; padding: 18px 16px 22px;
  box-shadow: 0 30px 60px -20px rgba(43, 38, 33, .45), 0 0 0 8px #0d0b09;
  font-size: 14px;
}
.phone-bar { display: flex; align-items: center; gap: 12px; padding: 8px 6px 12px; }
.ph-menu { width: 18px; height: 12px; border-top: 2px solid var(--phone-muted); border-bottom: 2px solid var(--phone-muted); position: relative; }
.ph-menu::after { content: ""; position: absolute; left: 0; right: 0; top: 3px; border-top: 2px solid var(--phone-muted); }
.ph-title { font-size: 18px; display: flex; align-items: center; gap: 8px; }
.ph-icon { width: 20px; height: 20px; color: var(--heading); }
.ph-tags { display: flex; gap: 6px; padding: 0 6px 10px; flex-wrap: wrap; }
.chip {
  font-size: 12px; padding: 4px 9px; border-radius: 7px;
  border: 1px solid currentColor; background: color-mix(in srgb, currentColor 12%, transparent);
}
.chip b { font-weight: 500; opacity: .75; margin-left: 4px; }
.ph-day { color: var(--heading); font-weight: 600; font-size: 13px; padding: 10px 6px 6px; }
.ph-feed { list-style: none; margin: 0; padding: 0; }
.ph-feed li { display: grid; grid-template-columns: 50px 1fr auto; gap: 8px; padding: 6px; align-items: baseline; }
.ph-feed time { color: var(--phone-muted); font: 500 12px var(--mono); }
.ph-feed p { margin: 0; line-height: 1.45; }
.ph-feed strong { color: var(--heading); }
.tag { padding: 0 3px; border-radius: 4px; background: color-mix(in srgb, currentColor 14%, transparent); }
/* Tags: the phone mock uses dark-theme shades; the page follows its own theme. */
.c-teal { color: var(--page-teal); }
.c-indigo { color: var(--page-indigo); }
.c-amber { color: var(--page-amber); }
.c-pink { color: var(--page-pink); }
.phone .c-teal { color: var(--tag-teal); }
.phone .c-indigo { color: var(--tag-indigo); }
.phone .c-amber { color: var(--tag-amber); }
.phone .c-pink { color: var(--tag-pink); }
.ph-new time { opacity: .6; }
.ph-placeholder { color: var(--phone-muted); }
.ph-tools { color: var(--phone-muted); letter-spacing: 8px; }
.caret {
  display: inline-block; width: 2px; height: 1.05em; margin-right: 1px;
  background: var(--heading); vertical-align: -0.15em;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* Problem */
#problem p { font-size: 1.15rem; color: var(--muted); margin: 18px 0 0; }

/* Section heads */
.section-head { margin-bottom: 40px; }
.section-sub { color: var(--muted); font-size: 1.08rem; margin: 16px 0 0; }

/* Use cases: a carousel of phone demos. Without JS it's a swipeable row. */
.uc-tabs {
  display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none;
  padding: 2px 0 20px; margin-bottom: 8px;
}
.uc-tabs::-webkit-scrollbar { display: none; }
.uc-tab {
  flex: none; display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; color: var(--muted);
  font: 500 0.95rem var(--sans); cursor: pointer;
}
.uc-tab svg { width: 18px; height: 18px; }
.uc-tab:hover { color: var(--text); }
.uc-tab[aria-selected="true"] { background: var(--accent-soft); border-color: var(--accent); color: var(--text); }
.uc-tab[aria-selected="true"] svg { color: var(--accent); }
.uc-track {
  position: relative;
  display: flex; overflow-x: auto;
  scroll-snap-type: x mandatory; scrollbar-width: none;
  overscroll-behavior-x: contain;
}
.uc-track::-webkit-scrollbar { display: none; }
.uc-slide {
  flex: 0 0 100%; scroll-snap-align: start;
  display: grid; grid-template-columns: 1fr auto; align-items: center;
  /* Room for the phone's outline and shadow, which the scrolling track would clip. */
  gap: clamp(24px, 6vw, 72px); padding: 16px 40px 48px;
}
/* A tighter shadow than the hero's, so neighbouring slides don't bleed into view. */
.uc-slide .phone { box-shadow: 0 0 0 8px #0d0b09, 0 22px 36px -26px rgba(43, 38, 33, .55); }
.uc-copy h3 { font: 600 clamp(1.6rem, 3vw, 2.1rem)/1.15 var(--serif); }
.uc-copy p { color: var(--muted); font-size: 1.15rem; margin: 12px 0 0; max-width: 26em; }
.uc-slide .phone { width: 340px; }
.uc-arrows { display: flex; justify-content: flex-end; gap: 8px; }
.uc-arrow {
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  font-size: 1.1rem; cursor: pointer;
}
.uc-arrow:hover { border-color: var(--accent); color: var(--accent); }
/* Tabs and arrows only do something once the script has loaded. */
html:not(.js) .uc-arrows { display: none; }

/* Science */
.science-note { color: var(--muted); margin-top: 28px; font-size: 0.98rem; }

/* Four forces */
.forces { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.force {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 20px;
}
.force-n { font: 500 0.8rem var(--mono); color: var(--faint); }
.force h3 { margin: 10px 0 8px; }
.force p { margin: 0 0 12px; color: var(--muted); font-size: 0.95rem; }
.force .treat { color: var(--text); }
.force .treat span {
  display: block; font: 600 0.72rem var(--sans);
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px;
}
.cite { margin-top: auto; font-size: 0.8rem; color: var(--faint); text-decoration: none; }
.cite:hover { color: var(--accent); text-decoration: underline; }

/* Steps */
.steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: step; }
.steps li { counter-increment: step; padding: 20px 8px 0 0; border-top: 2px solid var(--accent); }
.steps li::before { content: "0" counter(step); font: 500 0.8rem var(--mono); color: var(--faint); }
.steps h3 { font: 600 1.4rem var(--serif); margin: 8px 0; }
.steps p { margin: 0; color: var(--muted); }

/* Features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px 32px; }
.feature h3 { margin-bottom: 8px; }
.feature p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Privacy */
.checks { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.checks li { position: relative; padding-left: 32px; font-size: 1.08rem; }
.checks li::before {
  content: "\2713"; position: absolute; left: 0; top: 0.3em;
  width: 20px; height: 20px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent); color: var(--accent-ink);
  font-size: 12px; font-weight: 700; line-height: 1;
}

/* Download */
.download { text-align: center; }
.download > p { color: var(--muted); font-size: 1.1rem; margin: 12px auto 28px; }
.download .fineprint { margin-top: 18px; }

/* Pricing */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 880px; }
.plan {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px;
}
.plan-pro { border-color: var(--accent); }
.plan h3 { display: flex; align-items: center; gap: 10px; margin: 0; font: 600 1.4rem var(--serif); }
.plan-badge {
  font: 600 0.72rem var(--sans); letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 3px 10px;
}
.plan-price { font: 600 2rem var(--serif); margin: 14px 0 0; }
.plan-note { color: var(--faint); font-size: 0.9rem; margin: 2px 0 0; }
.plan-list { margin: 22px 0 28px; gap: 10px; flex: 1; }
.plan-list li { font-size: 0.98rem; }
.plan .btn { align-self: flex-start; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }

/* FAQ */
.faq > * { max-width: 760px; }
.faq h2 { margin-bottom: 20px; }
.faq details { border-top: 1px solid var(--line); padding: 16px 0; }
.faq details:last-of-type { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--faint); font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--muted); margin: 10px 0 0; }

/* Footer */
.footer {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 28px clamp(16px, 4vw, 40px);
  border-top: 1px solid var(--line); color: var(--faint); font-size: 0.9rem;
}
.footer a { color: var(--faint); }

/* Responsive */
@media (max-width: 960px) {
  .forces { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .uc-slide { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .uc-copy p { margin-left: auto; margin-right: auto; }
  .uc-slide .phone { width: min(340px, 100%); text-align: left; }
  .uc-arrows { justify-content: center; }
  .nav nav a:not(.nav-cta) { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .forces, .features { grid-template-columns: 1fr; }
  .cta-row .btn { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caret { animation: none; }
  .uc-track { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* Account page */
.account { padding: clamp(40px, 8vw, 88px) 16px; min-height: 60vh; }
.account-card {
  max-width: 440px; margin: 0 auto;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(24px, 5vw, 36px);
}
.account-card h1 { font-size: 1.9rem; margin-bottom: 10px; }
.account-card h2 { font-size: 1.2rem; margin-bottom: 8px; }
.account-sub { color: var(--muted); margin: 0 0 20px; }
.account form { display: grid; gap: 10px; }
.account label { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.account input {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
}
.account input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.account .btn { justify-self: start; margin-top: 4px; border: 0; cursor: pointer; font-family: inherit; }
.code-input { font-family: var(--mono) !important; font-size: 1.6rem !important; letter-spacing: 0.4em; text-align: center; }
.account-error { color: #C0392B; font-size: 0.92rem; margin: 12px 0 0; }
@media (prefers-color-scheme: dark) { .account-error { color: #FF8A80; } }
.account-links { margin: 16px 0 0; color: var(--faint); font-size: 0.9rem; display: flex; gap: 8px; flex-wrap: wrap; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); cursor: pointer; }
.link:disabled { color: var(--faint); cursor: default; }
.account-facts { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; margin: 0 0 16px; }
.account-facts dt { color: var(--muted); font-size: 0.9rem; }
.account-facts dd { margin: 0; font-weight: 500; word-break: break-all; }
.danger { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); }
.danger p { color: var(--muted); font-size: 0.93rem; }
.btn-danger { background: transparent; color: #C0392B; border: 1px solid currentColor !important; }
@media (prefers-color-scheme: dark) { .btn-danger { color: #FF8A80; } }
#delete-confirm { display: grid; gap: 10px; margin-top: 12px; }
.account-loading { text-align: center; color: var(--faint); }
.footer-links { display: flex; gap: 20px; }