/* schedrift.app — hand-written stylesheet, no build step.
   Type and rhythm follow shanedittmar.com (Poppins headings, Crimson Text body);
   colours come from the Schedrift app's asset catalog (cream grouped background,
   light-blue accent, near-black "on accent" text; the same set in dark mode). */

@font-face { font-family: "Poppins"; font-style: normal; font-weight: 400; font-display: swap; src: url("/fonts/poppins-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 600; font-display: swap; src: url("/fonts/poppins-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 700; font-display: swap; src: url("/fonts/poppins-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "Crimson Text"; font-style: normal; font-weight: 400; font-display: swap; src: url("/fonts/crimson-text-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Crimson Text"; font-style: italic; font-weight: 400; font-display: swap; src: url("/fonts/crimson-text-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "Crimson Text"; font-style: normal; font-weight: 600; font-display: swap; src: url("/fonts/crimson-text-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Crimson Text"; font-style: normal; font-weight: 700; font-display: swap; src: url("/fonts/crimson-text-latin-700-normal.woff2") format("woff2"); }

:root {
  color-scheme: light dark;
  --bg: #F9EDD3;            /* GroupedBackground */
  --card: #FDF9F4;          /* SecondaryGroupedBackground */
  --text: #1C1C1E;          /* OnAccent (light) */
  --muted: #5B5650;
  --rule: #E3D6BA;
  --accent: #92BAD6;        /* AccentColor */
  --accent-hover: #7AA6C6;
  --on-accent: #1C1C1E;
  --link: #3D6683;          /* accent darkened for AA text contrast on cream */
  --link-hover: #2B4E66;
  --focus: rgba(146, 186, 214, 0.55);
  --sans: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Crimson Text", Georgia, "Times New Roman", serif;
  --measure: 40rem;
  --space: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #282520;          /* GroupedBackground (dark) */
    --card: #34302A;
    --text: #FBF7F0;
    --muted: #C9C1B3;
    --rule: #4A453C;
    --accent: #92BAD6;
    --accent-hover: #A9CBE3;
    --on-accent: #0A0A0A;   /* OnAccent (dark) */
    --link: #A4C8E3;
    --link-hover: #C2DBED;
    --focus: rgba(146, 186, 214, 0.5);
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.55;
}

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.5em;
  text-wrap: balance;
}
h1 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.5rem); }
h2 { font-size: 1.6rem; margin-top: 2.25rem; }
h3 { font-size: 1.2rem; margin-top: 1.5rem; }
p, ul, ol { margin: 0 0 var(--space); }
ul, ol { padding-left: 1.4rem; }
li + li { margin-top: 0.25rem; }
.site-nav li + li, .site-footer li + li, .features > li + li { margin-top: 0; }
strong { font-weight: 700; }

a { color: var(--link); text-decoration: underline; text-underline-offset: 0.15em; }
a:hover { color: var(--link-hover); }
a:focus-visible, .button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: 0.5rem; top: -4rem;
  padding: 0.5rem 0.75rem;
  background: var(--accent); color: var(--on-accent);
  font-family: var(--sans); font-weight: 600;
  border-radius: 8px; z-index: 10;
}
.skip-link:focus { top: 0.5rem; }

.container {
  width: min(100% - 2.5rem, 60rem);
  margin-inline: auto;
}

/* Header ------------------------------------------------------------ */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--card);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding-block: 0.75rem;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--sans); font-weight: 700; font-size: 1.15rem;
  color: var(--text); text-decoration: none;
}
.brand img { width: 2rem; height: 2rem; border-radius: 22%; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.25rem; }
.site-nav a { font-family: var(--sans); font-weight: 600; text-decoration: none; }
.site-nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 0.3em; }

/* Main -------------------------------------------------------------- */
main { padding-block: 2.5rem 4rem; }
main > .container > *:first-child { margin-top: 0; }
.prose { max-width: var(--measure); }
.prose h1 { margin-bottom: 0.25em; }
.dateline { font-family: var(--sans); font-size: 0.9rem; color: var(--muted); margin-bottom: 2rem; }

/* Hero -------------------------------------------------------------- */
.hero {
  display: grid; gap: 2rem; align-items: center;
  grid-template-columns: minmax(0, 1fr);
  margin-bottom: 3rem;
}
@media (min-width: 40rem) {
  .hero { grid-template-columns: minmax(0, 2fr) minmax(12rem, 1fr); }
  .hero-art { order: 2; }
}
.hero-art img { display: block; width: min(100%, 14rem); height: auto; margin-inline: auto; }
.hero .lead { font-size: 1.3rem; max-width: var(--measure); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem 1rem; align-items: center; margin-top: 1.5rem; }
.requirements { font-family: var(--sans); font-size: 0.9rem; color: var(--muted); margin: 0.75rem 0 0; }

/* Buttons are links, so they keep link semantics for assistive tech. */
.button {
  display: inline-block;
  padding: 0.7rem 1.25rem;
  background: var(--accent); color: var(--on-accent);
  border: 2px solid var(--accent); border-radius: 12px;
  font-family: var(--sans); font-weight: 600; text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.button:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--on-accent); }
.button.secondary { background: transparent; color: var(--link); border-color: var(--link); }
.button.secondary:hover { background: var(--focus); color: var(--link-hover); }

/* Feature cards ----------------------------------------------------- */
.features {
  list-style: none; padding: 0; margin: 0 0 3rem;
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
}
.features > li {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 1.25rem 1.25rem 0.5rem;
}
.features h3 { font-size: 1.15rem; margin-top: 0; }

.pricing { background: var(--card); border: 1px solid var(--rule); border-radius: 16px; padding: 1.5rem; max-width: var(--measure); }
.pricing h2 { margin-top: 0; }
.pricing p:last-child { margin-bottom: 0; }

/* Footer ------------------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--rule);
  font-family: var(--sans); font-size: 0.9rem; color: var(--muted);
  padding-block: 1.5rem;
}
.site-footer .container { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1rem; }

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

/* Section titles between blocks of cards --------------------------- */
.section-title { margin-top: 3rem; }

/* Reflow demonstration --------------------------------------------- */
.demo { margin: 0 0 3rem; }
.demo > p { max-width: var(--measure); }
.demo-tables {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  margin: 1.5rem 0;
}
/* Each table scrolls inside its own box rather than widening the page. */
.demo-tables table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 0.75rem 1rem 1rem;
  font-size: 1rem;
}
.demo-tables caption {
  font-family: var(--sans); font-weight: 600;
  text-align: left; padding-bottom: 0.5rem;
}
.demo-tables th, .demo-tables td {
  text-align: left; padding: 0.35rem 0.75rem 0.35rem 0;
  border-bottom: 1px solid var(--rule); white-space: nowrap;
}
.demo-tables tbody tr:last-child th, .demo-tables tbody tr:last-child td { border-bottom: 0; }
.demo-tables th { font-family: var(--sans); font-size: 0.85rem; color: var(--muted); font-weight: 600; }
.demo-tables .type {
  display: inline-block; margin-left: 0.4rem;
  font-family: var(--sans); font-size: 0.75rem; color: var(--muted);
  white-space: nowrap;
}
/* Changed values are marked with weight, not colour alone. */
.demo-tables .changed { font-weight: 700; }
.demo-note { max-width: var(--measure); color: var(--muted); }

/* Origin note ------------------------------------------------------- */
.origin { max-width: var(--measure); margin-top: 3rem; }

/* Interactive reflow demo (progressive enhancement over the static tables) */
.demo-widget > p { max-width: var(--measure); }
.demo-tabs {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin: 1.25rem 0 0;
}
.demo-tab {
  font-family: var(--sans); font-size: 0.95rem; font-weight: 600;
  padding: 0.45rem 0.9rem;
  color: var(--link);
  background: transparent;
  border: 2px solid var(--rule);
  border-radius: 999px;
  cursor: pointer;
}
.demo-tab:hover { border-color: var(--link); }
.demo-tab[aria-selected="true"] {
  background: var(--accent); border-color: var(--accent); color: var(--on-accent);
}
.demo-tab:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

.demo-panel {
  margin-top: 1rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 1rem 1.25rem 1.25rem;
}
.demo-panel:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.demo-panel table {
  width: 100%; border-collapse: collapse; font-size: 1rem;
}
.demo-panel th, .demo-panel td {
  text-align: left; padding: 0.45rem 0.5rem 0.45rem 0;
  border-bottom: 1px solid var(--rule); vertical-align: baseline;
}
.demo-panel tr:last-child th, .demo-panel tr:last-child td { border-bottom: 0; }
.demo-panel th { font-weight: 400; }
.demo-time, .demo-length { white-space: nowrap; font-variant-numeric: tabular-nums; }
.demo-length { text-align: right; font-weight: 600; }
.demo-panel .type {
  display: block; font-family: var(--sans); font-size: 0.75rem; color: var(--muted);
}
/* Weight and a sign carry the change; colour is never the only signal. */
.demo-panel .delta { margin-left: 0.4rem; font-size: 0.85rem; color: var(--muted); }

.demo-caption {
  font-family: var(--sans); font-weight: 600;
  margin: 1rem 0 0; min-height: 1.5em;
}
.demo-slider { margin-top: 0.75rem; }
.demo-slider input[type="range"] { width: 100%; accent-color: var(--accent); }
.demo-slider input[type="range"]:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

@media (min-width: 34rem) {
  .demo-panel .type { display: inline-block; margin-left: 0.5rem; }
}