:root{
  --bg:#f6f7f9;--surface:#fff;--surface-2:#f0f2f5;--line:#e3e6ea;--line-strong:#d0d5dd;--text:#111827;--muted:#5f6b7a;
  --accent:#0b8a62;--accent-strong:#087150;--accent-ink:#fff;--accent-soft:#e6f5ef;
  --danger:#c8322b;--danger-soft:#fdeeed;--warn:#a15c07;--warn-soft:#fdf4e3;--ok:#0b7a4b;--ok-soft:#e8f6ee;
  --radius:16px;--radius-sm:10px;--shadow:0 1px 2px rgb(16 24 40/.04),0 1px 3px rgb(16 24 40/.06);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0c0f13;--surface:#151a20;--surface-2:#1c222a;--line:#262d36;--line-strong:#343c47;--text:#e9edf2;--muted:#98a3b1;
  --accent:#33c08f;--accent-strong:#5ad1a7;--accent-ink:#04140e;--accent-soft:#12261f;
  --danger:#ff6b61;--danger-soft:#2a1514;--warn:#f0b357;--warn-soft:#2a2010;--ok:#4fd18f;--ok-soft:#10241a;
  --shadow:none;
}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
a{color:var(--accent);text-underline-offset:2px}
h1,h2,h3{line-height:1.25;margin:0;letter-spacing:-.01em}
h1{font-size:22px}h2{font-size:17px}h3{font-size:15px}
p{margin:0}
code,pre,.mono{font-family:var(--mono);font-size:.875em}
:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 45%,transparent);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.icon{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.muted{color:var(--muted)}.small{font-size:14px}.tiny{font-size:12px}.strong{font-weight:600}
.stack{display:grid;gap:16px}.stack-sm{display:grid;gap:8px}.stack-lg{display:grid;gap:24px}
.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.grow{flex:1;min-width:0}.between{justify-content:space-between}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---- the frame: top bar + content + bottom tabs (mobile), sidebar + content (desktop) */
.app{min-height:100dvh;padding-bottom:calc(68px + env(safe-area-inset-bottom))}
.sidebar{display:none}
.topbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:12px;min-height:56px;padding:8px 16px;
  padding-top:max(8px,env(safe-area-inset-top));background:color-mix(in srgb,var(--bg) 85%,transparent);
  backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--line)}
.topbar h1{font-size:18px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .back{display:grid;place-items:center;width:40px;height:40px;margin-left:-8px;border-radius:10px;color:var(--text)}
.content{width:100%;max-width:980px;margin:0 auto;padding:16px;display:grid;gap:16px;align-content:start}
.cols{display:grid;gap:16px;align-items:start}
.tabbar{position:fixed;inset:auto 0 0 0;z-index:10;display:grid;grid-template-columns:repeat(5,1fr);
  background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);view-transition-name:tabbar}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:60px;
  color:var(--muted);text-decoration:none;font-size:11.5px;font-weight:600}
.tabbar a[aria-current=page]{color:var(--accent)}
.tabbar a .icon{width:22px;height:22px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--text);text-decoration:none}
.brand .mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--accent);color:var(--accent-ink);font-size:16px}
@media (min-width:900px){
  .app{display:grid;grid-template-columns:252px minmax(0,1fr);padding-bottom:0}
  .tabbar{display:none}
  .sidebar{display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100dvh;padding:20px 12px;
    border-right:1px solid var(--line);background:var(--surface);view-transition-name:sidebar}
  .sidebar .brand{padding:4px 10px 18px}
  .sidebar nav{display:grid;gap:2px}
  .sidebar nav a{display:flex;align-items:center;gap:12px;min-height:42px;padding:0 12px;border-radius:10px;
    color:var(--muted);text-decoration:none;font-weight:600;font-size:15px;transition:background .15s,color .15s}
  .sidebar nav a:hover{background:var(--surface-2);color:var(--text)}
  .sidebar nav a[aria-current=page]{background:var(--accent-soft);color:var(--accent)}
  .sidebar .me{margin-top:auto;display:flex;align-items:center;gap:10px;padding:10px;border-top:1px solid var(--line)}
  .topbar{position:static;background:none;backdrop-filter:none;-webkit-backdrop-filter:none;border:0;padding:28px 32px 0;max-width:980px;margin:0 auto;width:100%}
  .topbar h1{font-size:26px}
  .content{padding:20px 32px 56px}
  .cols{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:16px;align-items:start}
  .hide-desktop{display:none!important}
}
@media (max-width:899px){.hide-mobile{display:none!important}}

/* ---- surfaces */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card-body{padding:16px;display:grid;gap:14px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}
.card-head h2{font-size:16px}
.card.danger{border-color:color-mix(in srgb,var(--danger) 35%,var(--line))}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:4px 2px 0}
.section-title h2{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
@media (min-width:600px){.card-body{padding:20px}.card-head{padding:16px 20px}}

/* ---- lists: tappable rows */
.list{list-style:none;margin:0;padding:0}
.list>li+li{border-top:1px solid var(--line)}
.item{display:flex;align-items:center;gap:12px;padding:12px 16px;min-height:60px;color:inherit;text-decoration:none}
a.item{transition:background .15s}a.item:hover{background:var(--surface-2)}a.item:active{background:var(--line)}
.item .chev{color:var(--muted)}
.item-main{flex:1;min-width:0;display:grid;gap:2px}
.item-title{font-weight:600;display:flex;align-items:center;gap:8px;min-width:0}
.item-sub{font-size:13.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.avatar{width:40px;height:40px;flex:none;border-radius:11px;display:grid;place-items:center;background:var(--accent-soft);
  color:var(--accent);font-weight:700;text-transform:uppercase}
.avatar.sm{width:32px;height:32px;border-radius:9px;font-size:14px}

/* ---- controls */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid transparent;font:inherit;font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .15s,border-color .15s,transform .08s,color .15s;user-select:none}
.btn:active{transform:scale(.98)}
.btn .icon{width:18px;height:18px}
.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-primary:hover{background:var(--accent-strong)}
.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--line-strong)}.btn-secondary:hover{background:var(--surface-2)}
.btn-ghost{background:transparent;color:var(--accent)}.btn-ghost:hover{background:var(--accent-soft)}
.btn-danger{background:var(--danger);color:#fff}.btn-danger-ghost{background:transparent;color:var(--danger)}.btn-danger-ghost:hover{background:var(--danger-soft)}
.btn-sm{min-height:36px;padding:0 12px;font-size:14px;border-radius:9px}
.btn-icon{min-width:36px;padding:0}
.btn-block{width:100%}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.actions .btn{flex:1 1 auto}
@media (min-width:600px){.actions .btn{flex:0 0 auto}}
form{margin:0}fieldset{border:0;padding:0;margin:0;min-width:0}legend{padding:0;margin-bottom:4px}
.field{display:grid;gap:6px}
.field>label,.label{font-size:14px;font-weight:600}
.hint{font-size:13px;color:var(--muted)}
input,select,textarea{font:inherit;font-size:16px;width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);background:var(--surface);color:var(--text);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
input::placeholder{color:color-mix(in srgb,var(--muted) 75%,transparent)}
.fields{display:grid;gap:12px}
@media (min-width:600px){.fields.three{grid-template-columns:repeat(3,1fr)}.fields.two{grid-template-columns:repeat(2,1fr)}}
.inline{display:flex;gap:8px;align-items:stretch}.inline>input,.inline>select{flex:1;min-width:0}
.search{position:relative}.search .icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search input{padding-left:40px}
.choices{display:grid;gap:8px}
textarea{min-height:72px;resize:vertical;font-family:var(--mono);font-size:14px}
.check{display:flex;gap:12px;align-items:flex-start;cursor:pointer}
.check input{width:20px;height:20px;min-height:0;margin:2px 0 0;flex:none;accent-color:var(--accent)}
.choice{display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--line-strong);border-radius:12px;cursor:pointer;transition:border-color .15s,background .15s}
.choice input{width:20px;height:20px;min-height:0;margin:2px 0 0;accent-color:var(--accent);flex:none}
.choice:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.choice .t{font-weight:600}.choice .d{font-size:13.5px;color:var(--muted)}

/* ---- small things */
.badge{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 8px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--surface-2);color:var(--muted);white-space:nowrap;flex:none}
.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.warn{background:var(--warn-soft);color:var(--warn)}
.badge.bad{background:var(--danger-soft);color:var(--danger)}.badge.accent{background:var(--accent-soft);color:var(--accent)}
.dot{width:8px;height:8px;border-radius:50%;background:currentColor;flex:none}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 -16px;padding:0 16px}.chips::-webkit-scrollbar{display:none}
@media (min-width:900px){.chips{margin:0;padding:0;flex-wrap:wrap}}
.chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--line-strong);
  color:var(--text);text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap;background:var(--surface)}
.chip[aria-current=page]{background:var(--text);color:var(--bg);border-color:var(--text)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{display:inline-flex;align-items:center;gap:2px;min-height:32px;padding:0 4px 0 12px;border-radius:999px;background:var(--surface-2);font-size:14px;font-weight:600}
.tag.plain{padding-right:12px}
.tag form{display:inline}.tag button{display:grid;place-items:center;width:26px;height:26px;border:0;border-radius:50%;background:none;color:var(--muted);cursor:pointer;font-size:16px}
.tag button:hover{background:var(--line);color:var(--text)}
.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.meter{display:grid;gap:6px}.meter .v{font-weight:700;font-size:15px}.meter .k{font-size:12px;color:var(--muted)}
progress{appearance:none;-webkit-appearance:none;width:100%;height:6px;border:0;border-radius:99px;background:var(--surface-2);overflow:hidden}
progress::-webkit-progress-bar{background:var(--surface-2);border-radius:99px}
progress::-webkit-progress-value{background:var(--accent);border-radius:99px}
progress::-moz-progress-bar{background:var(--accent);border-radius:99px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:10px 16px;margin:0;font-size:15px}
.kv dt{color:var(--muted)}.kv dd{margin:0;min-width:0;overflow-wrap:anywhere}
.secret{display:flex;gap:8px;align-items:center;padding:10px 10px 10px 14px;border-radius:12px;background:var(--surface-2);border:1px dashed var(--line-strong)}
.secret code{flex:1;min-width:0;word-break:break-all;font-size:13.5px}
pre.code{margin:0;padding:14px;border-radius:12px;background:var(--surface-2);font-size:13.5px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}
.cmd{position:relative}.cmd pre.code{padding-right:48px}.cmd .btn{position:absolute;top:6px;right:6px}
.steps{counter-reset:step;list-style:none;margin:0;padding:0;display:grid;gap:16px}
.steps li{counter-increment:step;display:grid;grid-template-columns:28px 1fr;gap:12px}
.steps li::before{content:counter(step);width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:14px}
.notice{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:12px;font-size:15px;animation:in .25s ease-out}
.notice.ok{background:var(--ok-soft);color:var(--ok)}.notice.err{background:var(--danger-soft);color:var(--danger)}.notice.info{background:var(--surface-2);color:var(--text)}
.empty{display:grid;justify-items:center;gap:10px;text-align:center;padding:36px 20px;color:var(--muted)}
.empty .icon{width:32px;height:32px;color:var(--line-strong)}
.empty h3{color:var(--text)}
details.more>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;min-height:44px;font-weight:600;color:var(--accent)}
details.more>summary::-webkit-details-marker{display:none}
details.more>summary .icon{transition:transform .2s}details.more[open]>summary .icon{transform:rotate(90deg)}
.divider{height:1px;background:var(--line);margin:0}

/* ---- sign-in, invite, approval: one centred card */
.center{min-height:100dvh;display:grid;place-items:center;padding:24px 16px}
.center .panel{width:100%;max-width:440px;display:grid;gap:20px}
.center .panel .brand{justify-self:center}

/* ---- motion: page changes cross-fade; nothing moves for people who ask for less motion */
@view-transition{navigation:auto}
::view-transition-old(root),::view-transition-new(root){animation-duration:.16s}
@keyframes in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}@view-transition{navigation:none}}
/* conversations: the Inbox count, a thread */
.count{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:var(--accent);
  color:var(--accent-ink);font-size:11px;font-weight:700;line-height:1}
.tabbar a{position:relative}.tabbar .count{position:absolute;top:6px;left:calc(50% + 6px)}
.sidebar nav a .count{margin-left:auto}
.thread{display:flex;flex-direction:column;gap:10px}
.msg{max-width:min(560px,88%);padding:10px 14px;border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--line);
  white-space:pre-wrap;overflow-wrap:anywhere}
.msg.me{align-self:flex-end;background:var(--accent-soft);border-color:transparent}
.msg.held{border-style:dashed}
.msg.note{align-self:center;max-width:100%;background:none;border:none;color:var(--muted);font-size:13px;text-align:center;padding:2px 8px}
.msg .meta{display:block;margin-bottom:4px;font-size:12px;color:var(--muted);white-space:normal}