/* ── Brand tokens ──────────────────────────────────────────────────────
   Pulled from the slocal desktop app (apps/desktop/src/index.css).
   Parchment + ink + terracotta; Geist sans + Source Serif 4 display.
   Single accent reserved for primary CTA, hero italic, active state.
   ───────────────────────────────────────────────────────────────────── */
:root {
  --page-bg:        #f5f4ed;
  --surface:        #faf9f5;
  --surface-strong: #ebe9e0;
  --panel:          #f0eee6;
  --ink:            #141413;
  --ink-secondary:  #5e5d59;
  --ink-tertiary:   #87867f;
  --border:         #e8e6dc;
  --border-strong:  #d1cfc5;
  --accent:         #c96442;
  --accent-hover:   #b15637;
  --accent-soft:    color-mix(in srgb, #c96442 10%, #faf9f5);
  --font-serif:     "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --font-sans:      "Geist", -apple-system, BlinkMacSystemFont, "SF Pro", system-ui, sans-serif;
  --font-mono:      "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius-sm: 6px;
  --radius:    8px;
  --radius-lg: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--page-bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

/* ── Nav ─────────────────────────────────────────────────────────────── */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 48px;
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--page-bg) 88%, transparent);
  backdrop-filter: blur(8px);
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: inherit;
}
.nav-mark {
  width: 32px; height: 32px; border-radius: 7px;
  background: linear-gradient(180deg, #f8f6ee 0%, #ecead6 100%);
  border: 1px solid var(--border-strong);
  display: grid; place-items: center;
  color: var(--ink);
}
.nav-mark-glyph {
  position: relative;
  font-family: var(--font-serif); font-weight: 900; font-size: 21px;
  line-height: 1; transform: translateY(-1px);
}
.nav-mark-glyph::after {
  content: ""; position: absolute; left: 100%; bottom: 1px;
  margin-left: 1px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
}
.nav-name { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }

.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--ink-secondary); }
.nav-links a { color: inherit; text-decoration: none; transition: color .12s; }
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  background: var(--ink); color: var(--surface);
  padding: 8px 16px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500; text-decoration: none;
  transition: background .12s;
}
.nav-cta:hover { background: #2a2826; }

/* ── Hero ────────────────────────────────────────────────────────────── */
.hero {
  max-width: 1180px; margin: 0 auto;
  padding: 56px 48px 28px;
  display: grid; grid-template-columns: 1fr; gap: 22px;
  justify-items: start;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.hero-eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent);
}
.hero h1 {
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.04; font-weight: 700; letter-spacing: -0.03em;
  color: var(--ink); max-width: 920px;
}
.hero h1 .accent {
  color: var(--accent); font-style: italic;
  font-family: var(--font-serif); font-weight: 700;
}
.hero p.sub {
  font-size: clamp(15.5px, 1.2vw, 18px);
  line-height: 1.55; color: var(--ink-secondary);
  max-width: 720px; font-weight: 400;
}

/* ── App preview window ──────────────────────────────────────────────── */
.preview-frame {
  margin: 12px auto 0; max-width: 1180px;
  padding: 0 48px;
}
.preview-window {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 32px 64px -24px rgba(20,20,19,0.18),
    0 8px 24px -8px rgba(20,20,19,0.08);
}
.preview-titlebar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; background: var(--surface-strong);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.preview-titlebar .dot { width: 11px; height: 11px; border-radius: 50%; }
.preview-titlebar .dot-r { background: #e07b6e; }
.preview-titlebar .dot-y { background: #dab156; }
.preview-titlebar .dot-g { background: #7fb074; }
.preview-titlebar .title {
  position: absolute; left: 50%; transform: translateX(-50%);
  font-size: 12px; color: var(--ink-tertiary);
  font-family: var(--font-mono); letter-spacing: 0.02em;
}

.preview-body {
  height: 480px;
  display: grid; grid-template-columns: 56px 200px 1fr 240px;
}

/* — Rail: brand + agent presence stack — */
.preview-rail {
  background: var(--surface-strong); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center;
  padding: 14px 0 12px; gap: 10px;
}
.preview-rail .rail-brand {
  width: 32px; height: 32px; border-radius: 7px;
  background: linear-gradient(180deg, #f8f6ee 0%, #ecead6 100%);
  border: 1px solid var(--border-strong);
  display: grid; place-items: center;
  color: var(--ink);
}
.preview-rail .rail-brand-glyph {
  position: relative;
  font-family: var(--font-serif); font-weight: 900; font-size: 18px;
  line-height: 1; transform: translateY(-1px);
}
.preview-rail .rail-brand-glyph::after {
  content: ""; position: absolute; left: 100%; bottom: 1px;
  margin-left: 1px;
  width: 4px; height: 4px; border-radius: 50%; background: var(--accent);
}
.preview-rail .rail-divider {
  width: 28px; height: 1px; background: var(--border-strong); margin: 2px 0 4px;
}
.preview-rail .rail-avatar {
  position: relative; width: 32px; height: 32px;
}
.preview-rail .rail-avatar img {
  width: 100%; height: 100%; border-radius: 7px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  filter: grayscale(0.15);
  transition: filter .12s, transform .12s;
}
.preview-rail .rail-avatar.active img {
  filter: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 2px var(--surface-strong), 0 0 0 3px var(--ink);
}
.preview-rail .rail-avatar .presence {
  position: absolute; right: -2px; bottom: -2px;
  width: 9px; height: 9px; border-radius: 50%;
  border: 2px solid var(--surface-strong);
}
.presence-on   { background: #4ea564; }
.presence-busy { background: var(--accent); }
.presence-off  { background: #b8b6ac; }
.preview-rail .rail-avatar.add {
  width: 28px; height: 28px; border-radius: 7px;
  border: 1px dashed var(--border-strong); color: var(--ink-tertiary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 500; font-size: 14px;
  margin-top: auto;
}

/* — List: channels + agents — */
.preview-list {
  background: var(--panel); border-right: 1px solid var(--border);
  padding: 14px 12px; display: flex; flex-direction: column; gap: 3px;
  overflow: hidden;
}
.preview-list .group-title {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-tertiary); padding: 10px 8px 4px;
}
.preview-list .list-item {
  padding: 6px 10px; border-radius: var(--radius-sm); font-size: 13px;
  color: var(--ink-secondary);
  display: flex; align-items: center; gap: 8px;
}
.preview-list .list-item.active { background: var(--accent); color: #fff; }
.preview-list .list-item .badge {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 10px;
  padding: 1px 6px; border-radius: 999px;
  background: color-mix(in srgb, var(--ink) 10%, transparent);
  color: var(--ink-secondary);
}
.preview-list .list-item.active .badge {
  background: rgba(255,255,255,0.22); color: #fff;
}
.preview-list .list-avatar {
  width: 18px; height: 18px; border-radius: 4px;
  border: 1px solid var(--border-strong); background: var(--surface);
}
.preview-list .dot-status {
  margin-left: auto;
  width: 7px; height: 7px; border-radius: 50%;
}
.preview-list .dot-status.on   { background: #4ea564; }
.preview-list .dot-status.busy { background: var(--accent); }

/* — Main: header + messages + composer — */
.preview-main { display: flex; flex-direction: column; min-width: 0; }
.preview-main-head {
  padding: 14px 22px; border-bottom: 1px solid var(--border);
  display: flex; align-items: baseline; gap: 12px;
}
.preview-main-head .head-channel { font-weight: 600; font-size: 14px; color: var(--ink); }
.preview-main-head .head-sub {
  font-size: 11.5px; color: var(--ink-tertiary);
  font-family: var(--font-mono);
}
.preview-msgs {
  flex: 1; padding: 16px 22px 0;
  display: flex; flex-direction: column; gap: 14px;
  overflow: hidden;
}
.msg { display: flex; gap: 10px; }
.msg .avatar {
  width: 28px; height: 28px; border-radius: 6px; flex-shrink: 0;
  border: 1px solid var(--border-strong);
  background: var(--surface);
}
.msg-body { min-width: 0; }
.msg-body .who {
  font-size: 12.5px; font-weight: 600; color: var(--ink);
  margin-bottom: 2px;
  display: flex; align-items: center; gap: 7px;
}
.msg-body .who-time {
  font-family: var(--font-mono); font-size: 10.5px;
  font-weight: 400; color: var(--ink-tertiary); margin-left: auto;
}
.msg-body .agent-tag {
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.08em;
  padding: 1px 5px; border-radius: 3px;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}
.msg-body .what {
  font-size: 13px; color: var(--ink-secondary); line-height: 1.45;
}
.msg-body code {
  font-family: var(--font-mono); font-size: 11.5px;
  padding: 1px 5px; border-radius: 4px;
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  color: var(--ink);
}
.msg-body .mention {
  color: var(--accent); font-weight: 500;
}
.task-chip {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 6px;
  padding: 4px 9px; border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--border-strong);
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--ink-secondary);
}
.task-chip .task-owner { color: var(--ink); }
.task-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ink-tertiary);
}
.task-dot.in-progress { background: var(--accent); }

/* typing indicator */
.msg.typing .what { display: none; }
.typing-dots {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 0;
}
.typing-dots span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ink-tertiary);
  opacity: 0.45;
  animation: typingPulse 1.2s infinite ease-in-out;
}
.typing-dots span:nth-child(2) { animation-delay: 0.18s; }
.typing-dots span:nth-child(3) { animation-delay: 0.36s; }
@keyframes typingPulse {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40%           { opacity: 1;   transform: translateY(-2px); }
}

.preview-composer {
  margin: 14px 22px 16px;
  padding: 10px 14px; border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--ink-secondary);
}
.preview-composer .caret { color: var(--accent); font-weight: 700; }
.preview-composer .composer-text { color: var(--ink); }
.preview-composer .composer-cursor {
  width: 1.5px; height: 14px; background: var(--ink);
  animation: blink 1s steps(2) infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* — Detail rail — */
.preview-detail {
  background: var(--surface-strong); border-left: 1px solid var(--border);
  padding: 16px; display: flex; flex-direction: column; gap: 12px;
}
.preview-detail .detail-head {
  font-family: var(--font-mono); font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--ink-tertiary);
}
.detail-card {
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius); padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
}
.detail-card .t { font-size: 13px; font-weight: 600; color: var(--ink); line-height: 1.35; }
.detail-card .meta { display: flex; flex-direction: column; gap: 6px; }
.detail-card .status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  align-self: flex-start;
  padding: 3px 9px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 500;
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}
.detail-card .status-pill .task-dot { background: var(--accent); }
.detail-card .owner-row {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--ink-secondary);
  font-family: var(--font-mono);
}
.detail-card .micro-avatar {
  width: 16px; height: 16px; border-radius: 4px;
  border: 1px solid var(--border-strong);
}
.detail-card .reviewers {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 10px; border-top: 1px dashed var(--border-strong);
}
.detail-card .reviewers-label {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-tertiary);
}
.detail-card .reviewer-stack {
  display: flex;
}
.detail-card .reviewer-stack img {
  width: 22px; height: 22px; border-radius: 5px;
  border: 1.5px solid var(--surface);
  margin-left: -6px;
}
.detail-card .reviewer-stack img:first-child { margin-left: 0; }

/* ── Download cards ──────────────────────────────────────────────────── */
.download-grid {
  max-width: 1180px; margin: 64px auto 0;
  padding: 0 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.download-card {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color .15s;
}
.download-card:hover { border-color: var(--accent); }
.download-card.primary {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.download-card .os-mark {
  font-family: var(--font-serif); font-weight: 700; font-size: 28px;
  letter-spacing: -0.01em; color: var(--ink);
  display: flex; align-items: baseline; gap: 8px;
}
.download-card .ext {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  color: var(--ink-tertiary); letter-spacing: 0.06em;
}
.download-card .desc {
  font-size: 14px; line-height: 1.5; color: var(--ink-secondary);
}
.download-card .stat {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-tertiary);
  padding-top: 12px;
  border-top: 1px dashed var(--border-strong);
}
.download-card .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; border-radius: 7px;
  font-size: 13px; font-weight: 500;
  text-decoration: none; cursor: pointer;
  border: 1px solid var(--ink); color: var(--ink); background: transparent;
  transition: background .12s, color .12s, border-color .12s;
}
.download-card .btn:hover { background: var(--ink); color: var(--surface); }
.download-card.primary .btn {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.download-card.primary .btn:hover {
  background: var(--accent-hover); border-color: var(--accent-hover);
}
.download-card .btn[data-state="pending"] {
  pointer-events: none;
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Features ────────────────────────────────────────────────────────── */
.features {
  max-width: 1180px; margin: 96px auto 0;
  padding: 0 48px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px;
}
.feature h3 {
  font-family: var(--font-serif); font-size: 22px; font-weight: 700;
  letter-spacing: -0.01em; margin-bottom: 8px;
}
.feature p {
  font-size: 14.5px; line-height: 1.55; color: var(--ink-secondary);
}
.feature .glyph {
  width: 38px; height: 38px; border-radius: var(--radius);
  background: var(--accent-soft); border: 1px solid var(--accent); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 14px;
  margin-bottom: 14px;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.footer {
  max-width: 1180px; margin: 96px auto 0;
  padding: 32px 48px 48px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-tertiary);
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 880px) {
  .nav { padding: 18px 24px; }
  .nav-links { display: none; }
  .hero { padding: 40px 24px 20px; }
  .preview-frame { padding: 0 24px; margin-top: 8px; }
  .preview-body { grid-template-columns: 48px 1fr; height: 460px; }
  .preview-list, .preview-detail { display: none; }
  .preview-rail { padding: 12px 0 10px; gap: 8px; }
  .preview-rail .rail-avatar.add { display: none; }
  .preview-main-head { padding: 12px 16px; }
  .preview-msgs { padding: 14px 16px 0; gap: 12px; }
  .preview-composer { margin: 12px 16px 14px; }
  .download-grid { padding: 0 24px; grid-template-columns: 1fr; margin-top: 48px; gap: 12px; }
  .download-card { padding: 20px; }
  .features { padding: 0 24px; grid-template-columns: 1fr; gap: 28px; margin-top: 56px; }
  .footer { padding: 24px 24px 32px; flex-direction: column; gap: 8px; align-items: flex-start; margin-top: 64px; }
}

@media (max-width: 560px) {
  .hero { padding: 32px 20px 16px; gap: 18px; }
  .preview-frame { padding: 0 16px; }
  .preview-body { grid-template-columns: 42px 1fr; height: 420px; }
  .download-grid, .features { padding: 0 16px; }
  .download-card { padding: 18px; }
  .msg-body .what { font-size: 12.5px; }
  .preview-main-head .head-channel { font-size: 13px; }
  .preview-main-head .head-sub { font-size: 10.5px; }
}