:root {
  color-scheme: dark;
  --bg: #0d1713;
  --surface: #13231c;
  --surface-raised: #192d24;
  --line: rgba(224, 238, 230, 0.12);
  --line-strong: rgba(224, 238, 230, 0.22);
  --text: #f2f7f3;
  --muted: #aabbb1;
  --green: #80d5a6;
  --green-strong: #4db983;
  --green-wash: rgba(77, 185, 131, 0.13);
  font-family: "DM Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--bg); scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(68, 151, 107, 0.14), transparent 34rem),
    radial-gradient(circle at 90% 22%, rgba(57, 121, 91, 0.1), transparent 32rem),
    var(--bg);
}

a { color: inherit; }

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
  padding: 0 max(22px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(13, 23, 19, 0.86);
  backdrop-filter: blur(18px);
}

.brand, .current-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
}

.brand { font-family: Manrope, sans-serif; letter-spacing: -0.02em; }

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 11px;
  color: #102219;
  background: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.current-link { color: var(--green); font-size: 14px; }

main { width: min(1180px, calc(100% - 44px)); margin: 0 auto; padding: 78px 0 92px; }

.intro { max-width: 780px; }

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font: 800 clamp(42px, 7vw, 74px)/0.98 Manrope, sans-serif;
  letter-spacing: -0.055em;
}

.lede { max-width: 670px; margin: 24px 0 0; color: var(--muted); font-size: clamp(17px, 2vw, 20px); line-height: 1.55; }

.summary { display: flex; align-items: center; gap: 14px; margin-top: 28px; color: var(--muted); font-size: 14px; }
.summary strong { color: var(--text); font-weight: 700; }
.summary-divider { width: 4px; height: 4px; border-radius: 50%; background: var(--green-strong); }

.toolbar { display: flex; gap: 12px; margin: 66px 0 28px; }

.search { position: relative; flex: 1; }
.search-icon { position: absolute; top: 50%; left: 16px; color: var(--muted); font-size: 24px; transform: translateY(-54%); }

input, select {
  width: 100%;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  outline: none;
  color: var(--text);
  background: rgba(19, 35, 28, 0.82);
  font: 500 14px "DM Sans", sans-serif;
}

input { padding: 0 16px 0 48px; }
select { width: 210px; padding: 0 38px 0 15px; }
input:focus, select:focus { border-color: var(--green-strong); box-shadow: 0 0 0 3px rgba(77, 185, 131, 0.13); }
input::placeholder { color: #72877b; }

.view-switch, .group-switch { display: flex; flex: 0 0 auto; gap: 3px; height: 48px; padding: 4px; border: 1px solid var(--line); border-radius: 14px; background: rgba(19, 35, 28, .82); }
.view-button, .group-button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-width: 72px; padding: 0 9px; border: 0; border-radius: 10px; color: var(--muted); background: transparent; cursor: pointer; font: 700 12px "DM Sans", sans-serif; }
.view-button:hover, .group-button:hover { color: var(--text); }
.view-button[aria-pressed="true"], .group-button[aria-pressed="true"] { color: #102219; background: var(--green); }
.group-button { min-width: 86px; }

.timeline { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: start; }

.snapshot-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(19, 35, 28, 0.76);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.14);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.snapshot-card:hover { transform: translateY(-3px); border-color: var(--line-strong); background: rgba(23, 42, 33, 0.92); }

.feature-preview {
  position: relative;
  min-height: 148px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 18px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 86% 16%, color-mix(in srgb, var(--feature-color) 28%, transparent), transparent 46%),
    linear-gradient(145deg, color-mix(in srgb, var(--feature-color) 11%, #172921), #12221b 72%);
}

.feature-screenshot { position: absolute; z-index: 1; top: 18px; right: 18px; width: 43%; height: 88px; object-fit: cover; object-position: center; border: 1px solid color-mix(in srgb, var(--feature-color) 30%, var(--line)); border-radius: 12px; background: #102019; box-shadow: 0 12px 30px rgba(0, 0, 0, .24); }

.feature-preview::before {
  content: "";
  position: absolute;
  width: 128px;
  height: 128px;
  top: -38px;
  right: -28px;
  border: 1px solid color-mix(in srgb, var(--feature-color) 35%, transparent);
  border-radius: 42px;
  transform: rotate(24deg);
}

.feature-icon { position: absolute; z-index: 2; top: 13px; left: 18px; display: grid; width: 28px; height: 28px; place-items: center; border: 1px solid color-mix(in srgb, var(--feature-color) 52%, transparent); border-radius: 9px; color: var(--feature-color); background: rgba(9, 21, 15, .72); font: 800 13px/1 Manrope, sans-serif; backdrop-filter: blur(7px); }
.feature-copy { position: relative; z-index: 2; display: grid; width: 51%; gap: 4px; }
.feature-kicker { color: color-mix(in srgb, var(--feature-color) 82%, white); font-size: 10px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.feature-title { max-width: 270px; font: 700 18px/1.12 Manrope, sans-serif; letter-spacing: -.035em; }
.feature-tags { position: relative; z-index: 2; display: flex; width: 51%; flex-wrap: wrap; gap: 5px; margin-top: 9px; }
.feature-tag { padding: 5px 8px; border: 1px solid color-mix(in srgb, var(--feature-color) 28%, var(--line)); border-radius: 999px; color: #dce9e1; background: rgba(9, 21, 15, .34); font-size: 10px; font-weight: 700; }

.latest-badge { position: absolute; z-index: 3; top: 14px; right: 14px; padding: 5px 8px; border: 1px solid rgba(128,213,166,.4); border-radius: 999px; color: #dff7e9; background: rgba(17, 58, 40, .86); font-size: 8px; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }

.snapshot-content { padding: 15px; }
.snapshot-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
time { display: block; color: var(--green); font-size: 12px; font-weight: 700; }
h2 { margin: 5px 0 0; font: 700 16px/1.2 Manrope, sans-serif; letter-spacing: -0.025em; }

.open-button { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 6px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); text-decoration: none; font-size: 11px; font-weight: 700; transition: background 150ms ease, border-color 150ms ease; }
.open-button:hover { border-color: rgba(128,213,166,.44); background: var(--green-wash); }

.snapshot-notes { display: -webkit-box; overflow: hidden; margin: 13px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }

.snapshot-list { margin-top: 13px; border-top: 1px solid var(--line); }
.snapshot-list summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 45px; cursor: pointer; color: var(--text); font-size: 12px; font-weight: 700; list-style: none; }
.snapshot-list summary::-webkit-details-marker { display: none; }
.summary-chevron { color: var(--green); font-size: 18px; transition: transform 160ms ease; }
.snapshot-list[open] .summary-chevron { transform: rotate(180deg); }
.snapshot-list-items { display: grid; gap: 8px; padding: 0 0 4px; }
.subsnapshot { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 8px 10px; align-items: start; padding: 9px; border: 1px solid var(--line); border-radius: 12px; background: rgba(9, 20, 15, .3); }
.subsnapshot-thumbnail { width: 72px; height: 52px; object-fit: cover; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.subsnapshot-copy { min-width: 0; }
.subsnapshot-meta { color: var(--green); font-size: 10px; font-weight: 800; }
.subsnapshot-note { display: -webkit-box; overflow: hidden; margin: 5px 0 0; color: var(--muted); font-size: 11px; line-height: 1.4; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.subsnapshot-link { align-self: start; color: var(--text); text-decoration: none; font-size: 11px; font-weight: 800; }
.subsnapshot-link:hover { color: var(--green); }

.timeline[data-view="compact"] { grid-template-columns: 1fr; gap: 7px; }
.timeline[data-view="compact"] .snapshot-card { display: grid; grid-template-columns: 110px minmax(0, 1fr); border-radius: 12px; box-shadow: none; }
.timeline[data-view="compact"] .snapshot-card:hover { transform: none; }
.timeline[data-view="compact"] .feature-preview { min-height: 83px; padding: 0; border-right: 1px solid var(--line); border-bottom: 0; }
.timeline[data-view="compact"] .feature-preview::before { display: none; }
.timeline[data-view="compact"] .feature-screenshot { inset: 8px; width: calc(100% - 16px); height: calc(100% - 16px); border-radius: 8px; }
.timeline[data-view="compact"] .feature-icon,
.timeline[data-view="compact"] .feature-copy,
.timeline[data-view="compact"] .feature-tags,
.timeline[data-view="compact"] .latest-badge { display: none; }
.timeline[data-view="compact"] .snapshot-content { padding: 9px 12px; }
.timeline[data-view="compact"] .snapshot-heading { align-items: center; }
.timeline[data-view="compact"] .snapshot-heading > div { display: flex; min-width: 0; align-items: baseline; gap: 12px; }
.timeline[data-view="compact"] time { flex: 0 0 145px; }
.timeline[data-view="compact"] h2 { overflow: hidden; margin: 0; text-overflow: ellipsis; white-space: nowrap; }
.timeline[data-view="compact"] .snapshot-notes { display: none; }
.timeline[data-view="compact"] .snapshot-list { margin: 7px 0 -3px; }
.timeline[data-view="compact"] .snapshot-list summary { min-height: 28px; justify-content: flex-start; color: var(--muted); }
.timeline[data-view="compact"] .summary-chevron { margin-left: auto; }

.empty-state { padding: 54px 20px; border: 1px dashed var(--line-strong); border-radius: 18px; color: var(--muted); text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 760px) {
  .topbar { height: 60px; padding: 0 16px; }
  .current-link span:first-child { display: none; }
  main { width: min(100% - 28px, 560px); padding: 52px 0 70px; }
  h1 { font-size: clamp(39px, 13vw, 56px); }
  .lede { font-size: 16px; }
  .toolbar { flex-wrap: wrap; margin-top: 46px; }
  .search { flex-basis: 100%; }
  select { width: 100%; }
  .toolbar select { flex: 1 1 170px; width: auto; }
  .view-switch, .group-switch { flex: 1 1 auto; }
  .view-button, .group-button { flex: 1 1 0; min-width: 62px; }
  .timeline { grid-template-columns: 1fr; }
  .feature-preview { min-height: 164px; }
  .feature-screenshot { top: 16px; right: 16px; width: 42%; height: 92px; }
  .snapshot-content { padding: 18px; }
  .timeline[data-view="compact"] .snapshot-heading > div { display: block; }
  .timeline[data-view="compact"] time { margin-bottom: 3px; }
  .timeline[data-view="compact"] .open-button span:first-child { display: none; }
  .timeline[data-view="compact"] .snapshot-card { grid-template-columns: 82px minmax(0, 1fr); }
  .timeline[data-view="compact"] .subsnapshot { grid-template-columns: 58px minmax(0, 1fr) auto; }
  .timeline[data-view="compact"] .subsnapshot-thumbnail { width: 58px; height: 44px; }
}

@media (min-width: 761px) and (max-width: 1040px) {
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}