:root {
  --fg: #1c2230; --muted: #5d6677; --line: #dfe3ea; --bg: #f5f6f8; --card: #ffffff; --field: #ffffff;
  --accent: #2f5bd3; --accent-fg: #ffffff; --bad: #b42318; --warn: #8a5a00; --radius: 8px;
  --ask: #2f5bd3; --tell: #7a3fc2; --fyi: #5d6677; --answer: #1f7a45; --reject: #b42318; --blocked: #b35c00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e5e8ef; --muted: #9aa3b4; --line: #313848; --bg: #12151b; --card: #1a1e26; --field: #12151b;
    --accent: #6f95ff; --accent-fg: #0d1220; --bad: #ff8a80; --warn: #f0b860;
    --ask: #7fa2ff; --tell: #c39bff; --fyi: #a3abbb; --answer: #6fd39a; --reject: #ff8a80; --blocked: #f5a35c;
  }
}

/* The hidden attribute must win over every display rule below. */
[hidden] { display: none !important; }

* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--fg); background: var(--bg); }
h1, h2 { margin: 0; line-height: 1.25; }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .85rem; margin: .5rem 0; }
.error { color: var(--bad); margin: .4rem 0 0; min-height: 0; }
.warning { color: var(--warn); margin: .2rem 0; }
.warning:empty, .error:empty { display: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem 1.2rem; }

button { font: inherit; padding: .4rem .9rem; border-radius: 6px; border: 1px solid var(--line); background: var(--card);
         color: var(--fg); cursor: pointer; }
button:hover { border-color: var(--muted); }
button.primary, a.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg);
                                     font-weight: 600; }
a.button { display: block; text-align: center; text-decoration: none; padding: .55rem; border-radius: 6px;
           border: 1px solid var(--line); margin: .4rem 0 .8rem; }
button:disabled { opacity: .6; cursor: default; }
input, textarea, select { font: inherit; color: var(--fg); background: var(--field); border: 1px solid var(--line);
                          border-radius: 6px; padding: .45rem .55rem; }
input:focus, textarea:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
label { display: block; margin: .6rem 0 0; font-size: .9rem; }
label > input:not([type=number]), label > textarea { display: block; width: 100%; margin-top: .25rem; }

/* sign in */
#login { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem 1rem; }
.login-card { width: 100%; max-width: 24rem; padding: 1.8rem; }
.login-card h1 { font-size: 1.5rem; }
.login-card p.muted { margin: .3rem 0 1rem; }
.login-card input { width: 100%; margin-top: .3rem; }
.login-card button { width: 100%; margin-top: 1rem; padding: .55rem; }

/* board */
.topbar { display: flex; gap: 1rem; align-items: center; padding: .6rem 1.2rem; background: var(--card);
          border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 1; }
.brand { font-weight: 700; }
#who { flex: 1; }
main { display: grid; grid-template-columns: 15rem minmax(0, 1fr); min-height: calc(100vh - 3.2rem); }
nav { border-right: 1px solid var(--line); padding: .5rem 1rem 2rem; background: var(--card); }
nav h2 { font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 1.2rem 0 .4rem; }
nav ul { list-style: none; margin: 0; padding: 0; }
nav li { display: flex; gap: .4rem; align-items: center; justify-content: space-between; margin: .1rem 0; }
nav button.link { background: none; border: 0; color: var(--fg); padding: .25rem .5rem; margin-left: -.5rem; text-align: left;
                  border-radius: 6px; flex: 1; }
nav button.link:hover { background: var(--bg); }
nav button.link.active { background: var(--bg); color: var(--accent); font-weight: 600; }
nav li button:not(.link) { font-size: .75rem; padding: .1rem .5rem; }
#view { padding: 1.2rem 1.6rem 3rem; max-width: 72rem; }
.view-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.view-head h2 { font-size: 1.3rem; }
#view-note { margin: .3rem 0 0; font-size: .9rem; }

.msg { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: .8rem 1rem; margin: .8rem 0; }
.msg .meta { color: var(--muted); font-size: .8rem; display: flex; flex-wrap: wrap; gap: .2rem .9rem; align-items: center; }
.msg .subject { font-weight: 600; margin: .35rem 0 .2rem; overflow-wrap: anywhere; }
.msg pre { white-space: pre-wrap; overflow-wrap: anywhere; margin: .4rem 0; font: 14px/1.45 ui-monospace, Consolas, monospace;
           background: var(--bg); border-radius: 6px; padding: .6rem .7rem; }
.msg .actions { display: flex; gap: .5rem; margin-top: .4rem; }
.msg .actions button { font-size: .8rem; padding: .2rem .6rem; }
.act { font-weight: 700; font-size: .72rem; letter-spacing: .04em; padding: .05rem .45rem; border-radius: 999px;
       border: 1px solid currentColor; }
.act-ASK { color: var(--ask); } .act-TELL { color: var(--tell); } .act-FYI { color: var(--fyi); }
.act-ANSWER { color: var(--answer); } .act-REJECT { color: var(--reject); } .act-BLOCKED { color: var(--blocked); }
.empty { color: var(--muted); padding: 1.5rem 0; }

#agents-view { padding: 1.2rem 1.6rem 3rem; max-width: 72rem; }
#agents-view .card { margin-top: 1rem; }
#agents-view h2 { font-size: 1.05rem; }
table.grants { border-collapse: collapse; margin: .4rem 0; }
table.grants th, table.grants td { padding: .25rem .9rem .25rem 0; text-align: left; font-size: .9rem; }
table.grants th { color: var(--muted); font-weight: 600; }
.agent-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.agent-head button, ul.tokens button { font-size: .8rem; padding: .15rem .6rem; }
ul.tokens { list-style: none; padding: 0; margin: .3rem 0 0; }
ul.tokens li { display: flex; gap: .6rem; align-items: center; margin: .2rem 0; font-size: .9rem; }
.minted { border-color: var(--accent); }
#minted-token { flex: 1; min-width: 0; font-family: ui-monospace, Consolas, monospace; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .85rem; overflow-wrap: anywhere; }
label.grow { flex: 1; }
label.grow input { width: 100%; }
#post-form { margin-bottom: 1.5rem; }
#post-form h2 { font-size: 1rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; align-items: flex-end; }
.row label select, .row label input { margin-top: .25rem; display: block; }
.row.end { justify-content: flex-end; align-items: center; margin-top: .8rem; }
#post-result { margin: 0; flex: 1; }

@media (max-width: 760px) {
  main { grid-template-columns: 1fr; }
  nav { border-right: 0; border-bottom: 1px solid var(--line); }
  #view { padding: 1rem; }
}