:root {
  color-scheme: light dark;
  --md-primary: #6750a4; --md-on-primary: #ffffff;
  --md-primary-container: #eaddff; --md-on-primary-container: #21005d;
  --md-secondary-container: #e8def8; --md-on-secondary-container: #1d192b;
  --md-tertiary: #7d5260; --md-tertiary-container: #ffd8e4;
  --md-surface: #fef7ff; --md-surface-1: #f7f2fa; --md-surface-2: #f3edf7;
  --md-surface-3: #ece6f0; --md-surface-4: #eae3ec;
  --md-on-surface: #1d1b20; --md-on-surface-var: #49454f;
  --md-outline: #79747e; --md-outline-var: #cac4d0;
  --md-error: #b3261e; --md-error-container: #f9dedc;
  --md-shadow: 0 1px 3px 1px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.12);
  --md-shadow-l2: 0 2px 6px 2px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.16);
  --md-radius: 28px; --md-radius-sm: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --md-primary: #d0bcff; --md-on-primary: #381e72;
    --md-primary-container: #4f378b; --md-on-primary-container: #eaddff;
    --md-secondary-container: #332d41; --md-on-secondary-container: #e8def8;
    --md-tertiary: #efb8c8; --md-tertiary-container: #633b48;
    --md-surface: #141218; --md-surface-1: #1d1b20; --md-surface-2: #211f26;
    --md-surface-3: #25232a; --md-surface-4: #2a2731;
    --md-on-surface: #e6e0e9; --md-on-surface-var: #cac4d0;
    --md-outline: #938f99; --md-outline-var: #49454f;
    --md-error: #f2b8b5; --md-error-container: #8c1d18;
    --md-shadow: 0 1px 3px 1px rgba(0,0,0,.30), 0 1px 2px rgba(0,0,0,.40);
    --md-shadow-l2: 0 2px 6px 2px rgba(0,0,0,.34), 0 1px 2px rgba(0,0,0,.44);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--md-surface); color: var(--md-on-surface);
  font-family: Roboto, "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.55; font-size: 16px;
}
a { color: var(--md-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, kbd { font-family: "Cascadia Code", "JetBrains Mono", Consolas, monospace; }
.topbar {
  position: sticky; top: 0; z-index: 40; background: var(--md-surface-2);
  box-shadow: var(--md-shadow);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--md-on-surface); font-weight: 500; font-size: 19px; }
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; }
.topnav { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.topnav a {
  color: var(--md-on-surface-var); padding: 8px 16px; border-radius: 999px; font-size: 14.5px; font-weight: 500;
}
.topnav a:hover { background: var(--md-surface-3); text-decoration: none; }
.topnav a[aria-current] { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.hero { padding: 96px 0 72px; text-align: center;
  background: radial-gradient(1200px 480px at 50% -160px, var(--md-primary-container), transparent 72%);
}
.hero h1 { font-size: clamp(34px, 6vw, 60px); line-height: 1.12; margin: 0 0 18px; font-weight: 400; letter-spacing: -.5px; }
.hero h1 em { font-style: normal; color: var(--md-primary); }
.hero p.lead { font-size: 19px; color: var(--md-on-surface-var); max-width: 720px; margin: 0 auto 36px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 12px 26px;
  font-size: 15px; font-weight: 500; cursor: pointer; border: none; font-family: inherit;
  transition: box-shadow .18s ease, background .18s ease, transform .18s ease;
}
.btn:hover { box-shadow: var(--md-shadow); text-decoration: none; }
.btn:active { transform: scale(.98); }
.btn-filled { background: var(--md-primary); color: var(--md-on-primary); }
.btn-tonal { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.btn-outlined { background: transparent; color: var(--md-primary); border: 1px solid var(--md-outline); }
.btn-text { background: transparent; color: var(--md-primary); padding-inline: 16px; }
.section { padding: 56px 0; }
.section h2 { font-size: 28px; font-weight: 400; margin: 0 0 6px; }
.section .sub { color: var(--md-on-surface-var); margin: 0 0 30px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
.feature {
  background: var(--md-surface-1); border-radius: var(--md-radius-sm); padding: 24px;
  transition: background .18s ease;
}
.feature:hover { background: var(--md-surface-3); }
.feature .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--md-primary-container); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feature h3 { margin: 0 0 8px; font-size: 17px; font-weight: 500; }
.feature p { margin: 0; color: var(--md-on-surface-var); font-size: 14.5px; }
.stats { display: flex; gap: 46px; flex-wrap: wrap; padding: 26px 0; border-block: 1px solid var(--md-outline-var); }
.stats div b { display: block; font-size: 30px; font-weight: 400; color: var(--md-primary); }
.stats div span { color: var(--md-on-surface-var); font-size: 14px; }
.cards { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.card {
  background: var(--md-surface-1); border-radius: var(--md-radius-sm); overflow: hidden;
  border: 1px solid var(--md-outline-var); display: block; color: inherit;
  transition: box-shadow .18s ease, background .18s ease;
}
.card:hover { box-shadow: var(--md-shadow-l2); background: var(--md-surface-2); text-decoration: none; }
.card .thumb { height: 128px; display: flex; align-items: center; justify-content: center; background: var(--md-surface-3); }
.card .body { padding: 14px 18px 18px; }
.card .cat { font-size: 12px; letter-spacing: .6px; text-transform: uppercase; color: var(--md-tertiary); font-weight: 600; }
.card h3 { margin: 4px 0 6px; font-size: 17px; font-weight: 500; }
.card p { margin: 0; font-size: 13.5px; color: var(--md-on-surface-var); }
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin: 4px 0 26px; }
.filter-chip {
  border: 1px solid var(--md-outline); border-radius: 10px; padding: 7px 16px; cursor: pointer;
  background: transparent; color: var(--md-on-surface-var); font: 500 14px/1 inherit; font-family: inherit;
}
.filter-chip[aria-pressed="true"] { background: var(--md-secondary-container); color: var(--md-on-secondary-container); border-color: transparent; }
.demo-panel {
  background: var(--md-surface-1); border: 1px solid var(--md-outline-var); border-radius: var(--md-radius-sm);
  padding: 46px 28px; display: flex; align-items: center; justify-content: center; gap: 26px; flex-wrap: wrap;
}
.spec { width: 100%; overflow-x: auto; border-collapse: collapse; font-size: 14px; min-width: 520px; }
.spec th, .spec td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--md-outline-var); }
.spec th { color: var(--md-on-surface-var); font-weight: 500; white-space: nowrap; }
pre.block {
  background: var(--md-surface-3); border-radius: 12px; padding: 20px 22px; overflow-x: auto;
  font-size: 13.5px; line-height: 1.6;
}
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--md-outline-var); margin-bottom: 18px; flex-wrap: wrap; }
.tab-btn {
  border: none; background: transparent; font: 500 14px/1 inherit; font-family: inherit; color: var(--md-on-surface-var);
  padding: 12px 18px; cursor: pointer; border-radius: 10px 10px 0 0;
}
.tab-btn[aria-selected="true"] { color: var(--md-primary); border-bottom: 3px solid var(--md-primary); }
.breadcrumb { color: var(--md-on-surface-var); font-size: 14px; margin: 26px 0 8px; }
.breadcrumb a { color: var(--md-tertiary); }
.page-title { font-size: clamp(30px, 4vw, 44px); font-weight: 400; margin: 0 0 6px; }
.page-lead { color: var(--md-on-surface-var); font-size: 17.5px; max-width: 760px; margin: 0 0 34px; }
h3.h-block { font-weight: 500; font-size: 20px; margin: 44px 0 14px; }
.footer { background: var(--md-surface-2); margin-top: 64px; padding: 40px 0 52px; }
.footer .cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer h4 { margin: 0 0 10px; font-size: 14px; text-transform: uppercase; letter-spacing: .8px; color: var(--md-on-surface-var); }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14.5px; }
.footer .fine { color: var(--md-on-surface-var); font-size: 13px; margin-top: 34px; }
/* component demos */
.dm-btn { border-radius: 999px; padding: 10px 24px; font-size: 14.5px; font-weight: 500; border: none; cursor: pointer; font-family: inherit; }
.dm-filled { background: var(--md-primary); color: var(--md-on-primary); }
.dm-tonal { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.dm-outlined { background: none; color: var(--md-primary); border: 1px solid var(--md-outline); }
.dm-text { background: none; color: var(--md-primary); }
.dm-icon-btn { width: 44px; height: 44px; border-radius: 999px; border: none; background: var(--md-surface-3); color: var(--md-on-surface-var); font-size: 19px; cursor: pointer; }
.dm-icon-btn.std { background: none; }
.dm-fab { width: 58px; height: 58px; border-radius: 18px; background: var(--md-primary-container); color: var(--md-on-primary-container); border: none; font-size: 23px; cursor: pointer; box-shadow: var(--md-shadow); }
.dm-efab { display: inline-flex; align-items: center; gap: 10px; height: 58px; padding: 0 22px; border-radius: 18px; background: var(--md-primary-container); color: var(--md-on-primary-container); border: none; font: 500 15px inherit; font-family: inherit; cursor: pointer; box-shadow: var(--md-shadow); }
.dm-seg { display: inline-flex; border-radius: 999px; border: 1px solid var(--md-outline); overflow: hidden; }
.dm-seg button { border: none; background: none; padding: 10px 18px; font: 500 14px inherit; font-family: inherit; color: var(--md-on-surface); cursor: pointer; }
.dm-seg button[aria-pressed="true"] { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.dm-card { width: 250px; background: var(--md-surface-3); border-radius: var(--md-radius-sm); overflow: hidden; }
.dm-card .media { height: 130px; background: var(--md-tertiary-container); }
.dm-card .pad { padding: 14px 16px 18px; }
.dm-badge { position: relative; display: inline-block; padding: 8px; }
.dm-badge .dot { position: absolute; top: 0; right: 0; min-width: 18px; height: 18px; border-radius: 999px; background: var(--md-error); color: #fff; font-size: 11.5px; font-weight: 600; display: flex; align-items: center; justify-content: center; padding: 0 5px; }
.dm-progress-l { width: 240px; height: 6px; border-radius: 3px; background: var(--md-surface-4); overflow: hidden; }
.dm-progress-l i { display: block; height: 100%; width: 62%; background: var(--md-primary); border-radius: 3px; }
.dm-switch { width: 56px; height: 34px; border-radius: 999px; background: var(--md-surface-4); border: 2px solid var(--md-outline); position: relative; }
.dm-switch::after { content: ""; position: absolute; top: 5px; left: 5px; width: 18px; height: 18px; border-radius: 999px; background: var(--md-outline); transition: all .2s ease; }
.dm-switch[aria-checked="true"] { background: var(--md-primary); border-color: var(--md-primary); }
.dm-switch[aria-checked="true"]::after { left: 28px; background: var(--md-on-primary); }
.dm-slider { width: 240px; height: 6px; border-radius: 3px; background: var(--md-surface-4); position: relative; }
.dm-slider i { position: absolute; inset: 0 auto 0 0; width: 45%; background: var(--md-primary); border-radius: 3px; }
.dm-slider b { position: absolute; left: 45%; top: 50%; transform: translate(-50%,-50%); width: 22px; height: 22px; border-radius: 999px; background: var(--md-primary); border: none; }
.dm-checkbox { width: 22px; height: 22px; border-radius: 5px; border: 2px solid var(--md-on-surface-var); display: inline-flex; align-items: center; justify-content: center; color: var(--md-on-primary); font-size: 14px; }
.dm-checkbox[aria-checked="true"] { background: var(--md-primary); border-color: var(--md-primary); }
.dm-radio { width: 22px; height: 22px; border-radius: 999px; border: 2px solid var(--md-on-surface-var); display: inline-flex; align-items: center; justify-content: center; }
.dm-radio[aria-checked="true"] { border-color: var(--md-primary); }
.dm-radio[aria-checked="true"]::after { content: ""; width: 11px; height: 11px; border-radius: 999px; background: var(--md-primary); }
.dm-chip { display: inline-flex; align-items: center; gap: 8px; border-radius: 10px; border: 1px solid var(--md-outline); padding: 8px 15px; font-size: 14px; color: var(--md-on-surface-var); }
.dm-chip.assist { background: none; }
.dm-chip.input { background: var(--md-secondary-container); border-color: transparent; color: var(--md-on-secondary-container); }
.dm-chip.filter { background: none; }
.dm-chip.filter[aria-pressed="true"] { background: var(--md-secondary-container); border-color: transparent; color: var(--md-on-secondary-container); }
.dm-tf { position: relative; width: 260px; }
.dm-tf input { width: 100%; padding: 15px 16px; border-radius: 6px; border: 1px solid var(--md-on-surface-var); background: none; color: inherit; font: inherit; outline: none; }
.dm-tf input:focus { border-color: var(--md-primary); border-width: 2px; }
.dm-tf label { position: absolute; top: -9px; left: 12px; font-size: 13px; background: var(--md-surface-1); padding: 0 4px; color: var(--md-on-surface-var); }
.dm-tf.filled input { border: none; background: var(--md-surface-3); border-bottom: 1px solid var(--md-on-surface-var); }
.dm-search { display: flex; align-items: center; gap: 12px; background: var(--md-surface-3); height: 52px; border-radius: 999px; padding: 0 20px; width: 320px; color: var(--md-on-surface-var); }
.dm-navbar { display: flex; background: var(--md-surface-2); border-radius: 18px; overflow: hidden; }
.dm-navbar div { flex: 1; text-align: center; padding: 14px 8px 12px; font-size: 12.5px; color: var(--md-on-surface-var); }
.dm-navbar div span { display: block; font-size: 20px; margin-bottom: 4px; }
.dm-navbar div[aria-current] { background: var(--md-secondary-container); color: var(--md-on-secondary-container); }
.dm-rail { display: flex; flex-direction: column; gap: 4px; background: var(--md-surface-2); padding: 12px; border-radius: 18px; width: 84px; }
.dm-rail div { text-align: center; padding: 10px 4px; border-radius: 14px; font-size: 12px; color: var(--md-on-surface-var); }
.dm-rail div span { display: block; font-size: 19px; margin-bottom: 3px; }
.dm-rail div[aria-current] { background: var(--md-secondary-container); color: var(--md-on-secondary-container); font-weight: 500; }
.dm-tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--md-outline); }
.dm-tabs button { border: none; background: none; font: 500 14.5px inherit; font-family: inherit; padding: 12px 18px; color: var(--md-on-surface-var); cursor: pointer; }
.dm-tabs button[aria-selected="true"] { color: var(--md-primary); border-bottom: 3px solid var(--md-primary); }
.dm-menu { width: 210px; background: var(--md-surface-2); border-radius: 8px; box-shadow: var(--md-shadow-l2); padding: 8px 0; }
.dm-menu div { padding: 11px 18px; font-size: 14.5px; display: flex; justify-content: space-between; color: var(--md-on-surface); }
.dm-menu div:hover { background: var(--md-surface-4); }
.dm-menu div kbd { color: var(--md-on-surface-var); font-size: 12.5px; }
.dm-tooltip { display: inline-flex; flex-direction: column; align-items: center; gap: 12px; }
.dm-tip { background: var(--md-surface-4); color: var(--md-on-surface); font-size: 13px; border-radius: 6px; padding: 7px 12px; box-shadow: var(--md-shadow); }
.dm-carousel { display: flex; gap: 12px; width: 100%; overflow-x: auto; padding-bottom: 8px; }
.dm-carousel div { flex: 0 0 168px; height: 118px; border-radius: 18px; background: var(--md-primary-container); }
.dm-carousel div:nth-child(2n) { background: var(--md-tertiary-container); }
.dm-carousel div:nth-child(3n) { background: var(--md-secondary-container); }
.dm-snackbar { background: #322f35; color: #f5eff7; border-radius: 8px; padding: 15px 20px; display: flex; gap: 26px; align-items: center; box-shadow: var(--md-shadow-l2); font-size: 14.5px; }
.dm-snackbar button { border: none; background: none; color: #cfbcff; font: 500 14px inherit; font-family: inherit; cursor: pointer; }
.dm-dialog { width: 330px; background: var(--md-surface-3); border-radius: var(--md-radius-sm); padding: 26px 26px 14px; box-shadow: var(--md-shadow-l2); }
.dm-dialog h4 { margin: 0 0 10px; font-weight: 400; font-size: 23px; }
.dm-dialog p { margin: 0 0 22px; color: var(--md-on-surface-var); font-size: 14.5px; }
.dm-dialog .row { display: flex; justify-content: flex-end; gap: 6px; padding-bottom: 8px; }
@media (max-width: 760px) {
  .topbar-inner { gap: 12px; }
  .topnav a { padding: 7px 10px; font-size: 13.5px; }
  .hero { padding: 64px 0 48px; }
  .stats { gap: 28px; }
}