/* The coffee theme (docs/design.md): paper in light, coffee in dark, one
   accent per screen, eyebrows over sections, 20px cards with a hairline. */
:root {
  --bg: #F1EDE7;
  --surface: #FAF7F2;
  --fg: #14110F;
  --dim: #665D55;
  --accent: #7E6036;
  --on-accent: #F6F1E8;
  --line: rgb(20 17 15 / 14%);
  --field: rgb(20 17 15 / 6%);
  --ok: #3F6B32;
  --warn: #8A5A12;
  --danger: #A3412A;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #181210;
    --surface: #120D0B;
    --fg: #F3EEE8;
    --dim: #958B82;
    --accent: #E6D3B3;
    --on-accent: #181210;
    --line: rgb(243 238 232 / 13%);
    --field: rgb(243 238 232 / 6%);
    --ok: #8DBF7A;
    --warn: #E9B44C;
    --danger: #E08A70;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: max(40px, env(safe-area-inset-top)) 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

header { margin-bottom: 8px; }

h1 {
  margin: 4px 0 8px;
  font-size: 44px;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.lead { margin: 0; color: var(--dim); }

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow.secondary { color: var(--dim); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 18px 18px 16px;
}
.card.quiet { background: var(--field); }
.card p:last-child { margin-bottom: 0; }
.card p { margin-top: 0; }

.checks { list-style: none; margin: 0; padding: 0; }
.checks li {
  display: grid;
  grid-template-columns: 10px 1fr;
  column-gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.checks li:first-child { border-top: 0; padding-top: 2px; }
.checks .dot {
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--dim);
}
.checks .ok .dot { background: var(--ok); }
.checks .warn .dot { background: var(--warn); }
.checks .bad .dot { background: var(--danger); }
.checks .value { grid-column: 2; font-size: 15px; color: var(--dim); }

.capsule {
  margin-top: 12px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.capsule.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.capsule:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.note { margin: 0 4px; font-size: 15px; color: var(--warn); }

.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: max(10px, env(safe-area-inset-top)) 20px 10px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.banner .capsule { margin-top: 0; padding: 8px 16px; }
.banner[hidden], [hidden] { display: none; }

footer {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 16px 20px max(20px, env(safe-area-inset-bottom));
  font-size: 13px;
  color: var(--dim);
}

/* The account and chat screens (TODO W3/W4). */
h2 { margin: 2px 0 0; font-size: 28px; line-height: 1.15; font-weight: 800; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; margin-bottom: 14px; }
.brand-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
header.row, .row { display: flex; align-items: center; gap: 12px; }
header.row .brand { margin-bottom: 0; }
.card.row { justify-content: space-between; }
.card.row .hint, .card.row .capsule { margin: 0; }

.field {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--field);
  color: var(--fg);
  font: inherit;
  resize: vertical;
}
.field::placeholder { color: var(--dim); }
.field:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { margin: 8px 0 0; font-size: 15px; color: var(--dim); }
.strong { margin: 0; font-weight: 700; }
.check { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 15px; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
.capsule.wide { width: 100%; padding: 13px 18px; font-size: 16px; }
.capsule:disabled { opacity: 0.6; cursor: default; }
.capsule.primary:disabled { background: var(--field); border-color: var(--line); color: var(--dim); }
.capsule.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 50%, transparent); }
.buttons, .menu { display: flex; flex-wrap: wrap; gap: 10px; }
.buttons .capsule { margin-top: 4px; }
.status:empty { display: none; }
.error { margin: 0; color: var(--danger); font-size: 15px; }
.notice { margin: 0; color: var(--dim); font-size: 15px; }
.eyebrow.warn { color: var(--warn); }

.start { display: flex; gap: 10px; align-items: center; }
.start .capsule { margin-top: 0; padding: 12px 20px; }

.list { list-style: none; margin: 0; padding: 0; overflow: hidden; }
.list li + li { border-top: 1px solid var(--line); }
.chat-row {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 16px;
  border: 0; background: transparent; color: inherit; font: inherit; text-align: left; cursor: pointer;
}
.chat-row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.avatar {
  flex: none; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  background: var(--field); border: 1px solid var(--line); font-weight: 700;
}
.chat-text { display: flex; flex-direction: column; min-width: 0; gap: 2px; }
.chat-title { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.chat-title > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-last { color: var(--dim); font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tag {
  flex: none; padding: 1px 7px; border: 1px solid currentColor; border-radius: 999px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
}
.tag.warn { color: var(--warn); }
.tag.danger { color: var(--danger); }

.chat-head { position: sticky; top: 0; z-index: 1; padding: 6px 0; background: var(--bg); border-bottom: 1px solid var(--line); }
.chat-head .capsule { margin-top: 0; }
.chat-name { font-size: 20px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messages { list-style: none; margin: 0; padding: 0 0 12px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.messages li { display: flex; flex-direction: column; align-items: flex-start; }
.messages li.mine { align-items: flex-end; }
.bubble {
  margin: 0; max-width: 80%; padding: 9px 14px; border-radius: 18px; white-space: pre-wrap; overflow-wrap: anywhere;
  background: var(--surface); border: 1px solid var(--line);
}
.mine .bubble { background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: transparent; }
.delivery { margin-top: 2px; font-size: 12px; color: var(--dim); }
.composer {
  position: sticky; bottom: 0; display: flex; gap: 10px; align-items: flex-end;
  padding: 10px 0 max(10px, env(safe-area-inset-bottom)); background: var(--bg); border-top: 1px solid var(--line);
}
.composer .field { resize: none; border-radius: 22px; }
.composer .capsule { margin-top: 0; padding: 12px 18px; }

.phrase {
  list-style: none; margin: 0; padding: 16px 18px; counter-reset: w;
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.phrase li { counter-increment: w; }
.phrase li::before { content: counter(w); display: inline-block; width: 24px; margin-right: 6px; text-align: right; color: var(--dim); font-size: 13px; }

/* Groups */
.messages li.system { align-items: center; }
.system-line { margin: 4px 0; font-size: 13px; color: var(--dim); text-align: center; }
.sender { margin: 0 0 2px 14px; font-size: 12px; font-weight: 600; color: var(--accent); }
.chat-head .chat-name { flex: 1; min-width: 0; }
.member { display: flex; align-items: center; gap: 12px; padding: 10px 16px; }
.member .chat-text { flex: 1; }
.member .capsule { margin-top: 0; padding: 7px 14px; font-size: 14px; }
.role { color: var(--dim); font-size: 14px; }
.invite-card .buttons { margin-top: 10px; }
.pick { display: flex; align-items: center; gap: 12px; padding: 12px 16px; cursor: pointer; }
.pick input { width: 18px; height: 18px; accent-color: var(--accent); }

/* Linking */
.link-card { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.qr { width: min(280px, 100%); height: auto; border-radius: 12px; }
.qr-bg { fill: #fff; }
.qr-fg { fill: #000; }
.code-text { margin: 0; max-width: 100%; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--dim); overflow-wrap: anywhere; user-select: all; }