:root {
  --bg: #f6f4ef;
  --surface: #ffffff;
  --text: #1d2321;
  --muted: #6b7470;
  --line: #e2ded5;
  --accent: #2f5d50;
  --accent-ink: #ffffff;
  --accent-soft: #e3ece8;
  --warm: #b8893e;
  --warm-soft: #f3ead9;
  --danger: #a5402d;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 4px 16px rgba(0, 0, 0, .04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #171a19; --surface: #202423; --text: #e8ebe9; --muted: #98a19d; --line: #333a38;
    --accent: #7fb8a4; --accent-ink: #10201b; --accent-soft: #24332e; --warm: #d8b06d; --warm-soft: #33291a;
    --danger: #e08a76; --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #171a19; --surface: #202423; --text: #e8ebe9; --muted: #98a19d; --line: #333a38;
  --accent: #7fb8a4; --accent-ink: #10201b; --accent-soft: #24332e; --warm: #d8b06d; --warm-soft: #33291a;
  --danger: #e08a76; --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.55 ui-sans-serif, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5rem; font-weight: 650; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 1rem; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }

.top {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 760px; margin: 0 auto; padding: 18px 16px;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.brand::before {
  content: ""; display: inline-block; width: 22px; height: 14px; margin-right: 8px; vertical-align: -1px;
  background:
    radial-gradient(circle at 7px 7px, var(--accent) 6.5px, transparent 7px),
    radial-gradient(circle at 15px 7px, var(--warm) 6.5px, transparent 7px);
}
#nav { display: flex; gap: 14px; font-size: .95rem; }
#nav a, #nav button { color: var(--muted); text-decoration: none; background: none; border: 0; font: inherit; cursor: pointer; padding: 0; }
#nav a:hover, #nav button:hover { color: var(--text); }

main { max-width: 760px; margin: 0 auto; padding: 8px 16px 80px; }
section { margin: 0 0 32px; }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spread { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }

label { display: block; font-weight: 600; margin: 0 0 6px; }
input[type="email"], input[type="text"], textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
textarea { min-height: 120px; resize: vertical; line-height: 1.55; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.btn {
  font: inherit; font-weight: 600; border-radius: 10px; padding: 10px 16px; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent);
}
.btn:disabled { opacity: .5; cursor: default; }
.btn.secondary { background: transparent; color: var(--text); border-color: var(--line); }
.btn.link { background: none; border: 0; color: var(--muted); padding: 6px 4px; font-weight: 500; }
.btn.link:hover { color: var(--text); }
.btn.danger { color: var(--danger); }

.tiles { display: grid; gap: 14px; }
.tile { display: block; color: inherit; text-decoration: none; }
.tile:hover { border-color: var(--accent); }
.people { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.people li { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .95rem; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  font-size: .78rem; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted);
  white-space: nowrap;
}
.chip.on { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip.wait { background: var(--warm-soft); color: var(--warm); border-color: transparent; }

.q + .q { margin-top: 22px; }
.draft-note { font-size: .82rem; color: var(--muted); min-height: 1.2em; }
.issue { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
.issue-text { overflow-wrap: anywhere; }

.summary h3 { margin-top: 18px; }
.summary h3:first-of-type { margin-top: 0; }
.summary ul { margin: 0; padding-left: 1.2rem; }
.summary li + li { margin-top: 4px; }

.notice { background: var(--warm-soft); border-radius: 10px; padding: 12px 14px; font-size: .95rem; }
.error { color: var(--danger); font-size: .95rem; }

#toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: .95rem;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; max-width: calc(100% - 32px);
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tabs button {
  font: inherit; background: none; border: 0; padding: 10px 12px; cursor: pointer; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
}
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
select {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 8px; margin-left: 6px; max-width: 100%;
}

/* Markdown editor: text box and live preview side by side, stacked on phones. */
.editor { display: grid; gap: 10px; }
@media (min-width: 720px) { .editor { grid-template-columns: 1fr 1fr; } }
.md-preview {
  border: 1px dashed var(--line); border-radius: 10px; padding: 10px 12px; min-height: 120px;
  overflow-wrap: anywhere; font-size: .95rem; background: color-mix(in srgb, var(--surface) 60%, var(--bg));
}
.md-hint { margin: 4px 0 14px; }
.md > :first-child { margin-top: 0; }
.md > :last-child { margin-bottom: 0; }
.md p { margin: 0 0 .6rem; }
.md h3, .md h4, .md h5 { margin: .8rem 0 .4rem; }
.md h3 { font-size: 1.1rem; } .md h4 { font-size: 1rem; } .md h5 { font-size: .95rem; }
.md ul, .md ol { margin: 0 0 .6rem; padding-left: 1.3rem; }
.md blockquote { margin: 0 0 .6rem; padding-left: 12px; border-left: 3px solid var(--line); color: var(--muted); }
.md code { font: .88em ui-monospace, Menlo, monospace; background: var(--accent-soft); padding: 1px 5px; border-radius: 5px; }
.md hr { border: 0; border-top: 1px solid var(--line); margin: .8rem 0; }

.summary .overview { font-size: 1.02rem; margin-bottom: 18px; }
.summary li { margin-bottom: 8px; }
.summary .insight { color: var(--muted); }