:root {
  --dark: #231f20; --cream: #fefcf7; --gold: #febb12; --teal: #588b8b; --rust: #c8553d;
  --ink: #231f20; --muted: #6b6560; --line: #e7e1d8; --ok: #2e7d52;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; } /* .btn etc. set display, which would override the hidden attribute */
html, body { margin: 0; }
body {
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  color: var(--ink); background: var(--cream);
  -webkit-font-smoothing: antialiased;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.skip { position: absolute; left: -999px; }
.skip:focus { left: 8px; top: 8px; background: var(--gold); color: var(--dark); padding: 8px 12px; border-radius: 8px; z-index: 10; }

.screen { min-height: 100vh; }
#auth { display: grid; place-items: center; padding: 24px; }

.card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin: 0 auto 16px; max-width: 540px; }
.card.muted { background: #faf6ee; }
.auth-card { width: 100%; max-width: 380px; }

.brand { font-weight: 800; letter-spacing: -.02em; color: var(--dark); margin: 0; font-size: 2rem; }
.brand.sm { font-size: 1.25rem; }
.tagline { color: var(--muted); margin: 4px 0 20px; }
h2 { font-size: 1.15rem; margin: 0 0 8px; }
.hint { color: var(--muted); font-size: .92rem; margin: 0 0 14px; }

label { display: block; font-weight: 600; font-size: .9rem; margin: 12px 0 6px; }
input {
  width: 100%; padding: 12px 14px; font-size: 16px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; color: var(--ink); min-height: 44px;
}
input:focus { outline: 3px solid var(--teal); outline-offset: 1px; border-color: var(--teal); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 18px; border-radius: 12px; border: 1px solid transparent;
  font-size: 1rem; font-weight: 700; cursor: pointer; width: 100%;
}
.btn.sm { width: auto; min-height: 40px; padding: 8px 14px; font-size: .9rem; }
.btn.primary { background: var(--gold); color: var(--dark); }
.btn.primary:hover { filter: brightness(.96); }
.btn.ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.btn.primary { margin-top: 16px; }

.auth-links { display: flex; justify-content: space-between; margin-top: 14px; gap: 8px; flex-wrap: wrap; }
.link { background: none; border: none; color: var(--teal); font: inherit; cursor: pointer; padding: 8px 4px; min-height: 44px; text-decoration: underline; }
.link:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; border-radius: 6px; }

.msg { min-height: 1.2em; margin: 12px 0 0; color: var(--rust); font-size: .9rem; }
.msg.good { color: var(--ok); }

.topbar { display: flex; align-items: center; gap: 10px; padding: 12px 16px; background: var(--dark); color: var(--cream); position: sticky; top: 0; }
.topbar .brand { color: var(--gold); }
.spacer { flex: 1; }
.who { font-size: .85rem; color: #cfc8bf; max-width: 45vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .btn.ghost { color: var(--cream); border-color: #4a4543; }

.app-main { padding: 16px; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { display: flex; align-items: center; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.list .loc { color: var(--muted); font-size: .85rem; font-family: ui-monospace, monospace; }
.list .ok { margin-left: auto; color: var(--ok); font-size: .85rem; font-weight: 600; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---- P4: nav, clients, detail ---- */
.app-main { padding: 16px 16px 84px; } /* room for tabbar */
.view { max-width: 640px; margin: 0 auto; }

.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; display: flex; background: #fff;
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
}
.tab { flex: 1; background: none; border: none; padding: 14px 8px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; min-height: 56px; }
.tab.active { color: var(--dark); box-shadow: inset 0 2px 0 var(--gold); }
.tab:focus-visible { outline: 3px solid var(--teal); outline-offset: -3px; }

.searchbar { margin: 0 0 12px; }
.searchbar input { margin: 0; }

.list.clients li, .list.notes li { padding: 0; border: none; }
.client {
  display: flex; flex-direction: column; gap: 2px; width: 100%; text-align: left;
  background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px;
  margin-bottom: 8px; cursor: pointer; min-height: 56px;
}
.client:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.cname { font-weight: 600; }
.csub { color: var(--muted); font-size: .85rem; }
.loading, .err, .list .hint { color: var(--muted); padding: 12px; list-style: none; }
.err { color: var(--rust); }

.detail .back { display: inline-block; margin: 0 0 8px; padding: 8px 4px; }
.detail-head h2 { margin: 0 0 4px; }
.detail-head .meta { color: var(--muted); margin: 0 0 12px; }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 4px 0 12px; }
.seg-btn { background: #fff; border: none; padding: 10px 18px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; min-height: 44px; }
.seg-btn.active { background: var(--dark); color: var(--cream); }
.seg-btn:focus-visible { outline: 3px solid var(--teal); outline-offset: -3px; }

textarea { width: 100%; padding: 12px 14px; font: inherit; font-size: 16px; border: 1px solid var(--line); border-radius: 10px; resize: vertical; }
textarea:focus { outline: 3px solid var(--teal); outline-offset: 1px; border-color: var(--teal); }

.preview { background: #faf6ee; border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 12px 0; font-size: .9rem; }
.preview pre { white-space: pre-wrap; word-break: break-word; margin: 8px 0 0; font-family: ui-monospace, monospace; }
.row { display: flex; gap: 10px; margin-top: 12px; }
.row .btn { width: auto; flex: 1; }

.notes li { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line) !important; }
.notes .nbody { flex: 1; }
.notes .ndate { color: var(--muted); font-size: .8rem; white-space: nowrap; }
#note-form { margin-bottom: 12px; }
#note-form textarea { margin-bottom: 8px; }
#add-account { display: inline-block; margin-top: 10px; }

/* ---- core-ops polish: create client, activity ---- */
.clients-top { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
.clients-top .searchbar { flex: 1; margin: 0; }
.clients-top .btn.sm { width: auto; white-space: nowrap; }
.sub { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 14px 0 4px; }
.list.mini li { padding: 8px 0; font-size: .9rem; border-bottom: 1px solid var(--line); display: flex; gap: 8px; align-items: baseline; }
.dir { font-weight: 700; }
.dir.in { color: var(--teal); }
.dir.out { color: var(--rust); }

/* ---- upload onboarding ---- */
.upload { padding: 12px; background: #faf6ee; border: 1px dashed var(--line); border-radius: 10px; margin-bottom: 8px; }
.upload input[type=file] { font-size: .9rem; min-height: auto; padding: 8px 0; border: none; background: none; }
.hint.inline { display: inline; margin: 0; font-weight: 400; }

/* ---- onboarding instructions + dedup ---- */
.howto { margin: 0 0 14px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; background: #faf6ee; }
.howto summary { cursor: pointer; font-weight: 600; min-height: 36px; display: flex; align-items: center; }
.steps { margin: 6px 0 0; padding-left: 18px; }
.steps li { padding: 4px 0; font-size: .9rem; }
.steps code { background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; font-size: .85em; }
.steps a { color: var(--teal); }
.scopes { display: block; margin-top: 4px; color: var(--muted); font-size: .85em; }
.dup { color: var(--rust); font-size: .9rem; margin: 8px 0 0; }
.dup .link { padding: 2px 4px; min-height: auto; display: inline; }

/* ---- campaigns ---- */
select { width: 100%; padding: 12px 14px; font-size: 16px; border: 1px solid var(--line); border-radius: 10px; background: #fff; min-height: 44px; color: var(--ink); }
select:focus { outline: 3px solid var(--teal); outline-offset: 1px; }
.reclist { max-height: 46vh; overflow-y: auto; }
.reclist li { padding: 0; border: none; }
.rec { display: flex; align-items: center; gap: 10px; padding: 10px 2px; cursor: pointer; min-height: 44px; }
.rec input { width: 20px; height: 20px; flex: none; }
.rname { flex: 1; }
.rreason { color: var(--muted); font-size: .78rem; }
.rec-actions { font-size: .9rem; margin: 0 0 8px; }
.casl { font-size: .78rem; color: var(--muted); }
.pv { padding: 6px 0; border-top: 1px solid var(--line); margin-top: 6px; font-size: .9rem; }
.pv em { color: var(--teal); font-style: normal; font-weight: 600; }

/* ===== Liquid Glass theme (Apple iOS 26 / macOS) ===== */
:root {
  --glass: rgba(255,255,255,.55);
  --glass-2: rgba(255,255,255,.74);
  --glass-line: rgba(255,255,255,.65);
  --glass-shadow: 0 8px 32px rgba(31,31,40,.16), inset 0 1px 0 rgba(255,255,255,.6);
  --blur: 22px;
}
body {
  background:
    radial-gradient(120% 120% at 0% 0%, #fff2cf 0%, transparent 46%),
    radial-gradient(120% 120% at 100% 0%, #cfe9e9 0%, transparent 46%),
    radial-gradient(150% 150% at 100% 100%, #f6d6cc 0%, transparent 52%),
    linear-gradient(160deg, #fcfbf7, #eaeef1);
  background-attachment: fixed; min-height: 100vh;
}
.glass, .topbar, .tabbar, .card, .composer {
  background: var(--glass);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-shadow);
}
.card, .composer { background: var(--glass-2); }
.card.muted, .upload, .howto { background: rgba(255,255,255,.4); }

/* topbar: light glass, dark text (was dark) */
.topbar { color: var(--ink); border: 0; box-shadow: 0 1px 0 var(--glass-line), 0 6px 20px rgba(31,31,40,.08); z-index: 5; }
.topbar .brand { color: var(--gold); }
.topbar .who { color: var(--muted); }
.topbar .btn.ghost { color: var(--ink); border-color: var(--glass-line); }

/* shell: sidebar + main */
.shell { display: flex; gap: 16px; max-width: 1080px; margin: 0 auto; }
#main { flex: 1; min-width: 0; }
.sidebar { display: none; }
.sidenav { display: flex; flex-direction: column; gap: 4px; }
.navi {
  display: flex; align-items: center; gap: 10px; width: 100%; min-height: 44px;
  padding: 11px 12px; border: none; background: transparent; border-radius: 12px;
  font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; text-align: left;
}
.navi:hover { background: rgba(255,255,255,.5); color: var(--ink); }
.navi.active { background: var(--glass-2); color: var(--ink); box-shadow: inset 0 0 0 1px var(--glass-line), 0 4px 14px rgba(31,31,40,.1); }
.navi .ic { width: 1.2em; text-align: center; }
.navi:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }

/* assistant / chat */
.chat-view { display: flex; flex-direction: column; min-height: calc(100vh - 190px); }
.chat-hero { text-align: center; margin: clamp(20px, 7vh, 88px) auto 8px; max-width: 620px; }
.chat-hero h1 { font-size: clamp(1.55rem, 4.5vw, 2.4rem); font-weight: 800; letter-spacing: -.02em; color: var(--dark); margin: 0 0 8px; }
.chat-hero p { color: var(--muted); margin: 0; }
.thread { flex: 1; display: flex; flex-direction: column; gap: 10px; margin: 16px 0; overflow-y: auto; }
.bubble { max-width: 82%; padding: 12px 14px; border-radius: 16px; font-size: .95rem; line-height: 1.45; }
.bubble.me { align-self: flex-end; background: var(--dark); color: var(--cream); border-bottom-right-radius: 6px; }
.bubble.bot { align-self: flex-start; background: var(--glass-2); border: 1px solid var(--glass-line); border-bottom-left-radius: 6px; }
.bubble .btn { width: auto; min-height: 40px; margin-top: 10px; }
.composer {
  display: flex; gap: 8px; align-items: center; border-radius: 18px;
  padding: 7px 7px 7px 16px; position: sticky; bottom: 84px;
}
.composer input { border: none !important; background: transparent !important; box-shadow: none !important; padding: 8px 0; min-height: 40px; flex: 1; }
.composer input:focus { outline: none !important; }
.send {
  width: 44px; height: 44px; min-height: 44px; border-radius: 14px; border: none;
  background: var(--gold); color: var(--dark); font-size: 1.2rem; font-weight: 700;
  cursor: pointer; flex: none; padding: 0; display: grid; place-items: center;
}
.send:hover { filter: brightness(.96); }
.send:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 12px 0 0; }
.chip {
  background: var(--glass); border: 1px solid var(--glass-line); border-radius: 999px;
  padding: 9px 14px; font: inherit; font-size: .88rem; color: var(--ink); cursor: pointer;
  min-height: 42px; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.chip:hover { background: var(--glass-2); }
.chip:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }

/* desktop: show sidebar, hide bottom tabbar */
@media (min-width: 760px) {
  .shell { padding: 0 16px; }
  .sidebar { display: block; position: sticky; top: 80px; align-self: flex-start; width: 210px; border-radius: 20px; padding: 10px; }
  .tabbar { display: none; }
  .app-main { padding: 16px 0 24px; }
  .view { margin: 0; }
  .composer { bottom: 16px; }
  .chat-view { min-height: calc(100vh - 150px); }
}

/* session history */
.hist-summary { display: flex; flex-wrap: wrap; gap: 8px; }
.hist-summary .pill { background: var(--glass); border: 1px solid var(--glass-line); border-radius: 999px; padding: 6px 12px; font-size: .85rem; font-weight: 600; }
.hist-day { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 16px 4px 6px; }
.hist-row { display: flex; gap: 10px; align-items: baseline; padding: 11px 14px; margin-bottom: 6px; border-radius: 12px; }
.hist-row .hic { flex: none; }
.hist-row .htxt { flex: 1; min-width: 0; }
.hist-row .htime { color: var(--muted); font-size: .8rem; white-space: nowrap; }
.tabbar .tab { font-size: .82rem; padding: 14px 4px; }

/* guided-instructions popup */
.guide {
  position: fixed; left: 16px; right: 16px; bottom: 96px; z-index: 30;
  max-width: 520px; margin: 0 auto; border-radius: 16px; padding: 14px 42px 14px 16px;
}
.guide p { margin: 0; font-size: .92rem; line-height: 1.45; color: var(--ink); }
.guide-x {
  position: absolute; top: 8px; right: 8px; width: 32px; height: 32px; border: none;
  background: transparent; font-size: 1.4rem; line-height: 1; color: var(--muted);
  cursor: pointer; border-radius: 8px;
}
.guide-x:hover { background: rgba(0,0,0,.06); color: var(--ink); }
.guide-x:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
@media (min-width: 760px) { .guide { left: auto; right: 24px; bottom: 24px; margin: 0; } }

/* a11y: honor reduced transparency + motion */
@media (prefers-reduced-transparency: reduce) {
  .glass, .topbar, .tabbar, .card, .composer, .chip, .bubble.bot, .navi.active, .guide {
    -webkit-backdrop-filter: none; backdrop-filter: none; background: #fff;
  }
  body { background: #eef2f4; }
}