@font-face { font-family: "Instrument Sans"; font-weight: 400; src: url("fonts/InstrumentSans-normal-400.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "Instrument Sans"; font-weight: 600; src: url("fonts/InstrumentSans-normal-600.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "Instrument Serif"; font-weight: 400; src: url("fonts/InstrumentSerif-normal-400.woff2") format("woff2"); font-display: swap; }
@font-face { font-family: "JetBrains Mono"; font-weight: 400; src: url("fonts/JetBrainsMono-normal-400.woff2") format("woff2"); font-display: swap; }

:root {
  --paper: #f7f3eb; --paper-2: #f1ece3; --white: #fffdf9; --ink: #1c1a15; --ink-2: #4b4841; --ink-3: #848079;
  --rule: #dbd7d0; --accent: #c6ef3a; --accent-ink: #171e02; --danger: #8a2a1f;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; color: var(--ink); font: 15px/1.5 "Instrument Sans", "Helvetica Neue", Arial, sans-serif; font-feature-settings: "ss01"; }
a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 2px; }
a:hover { text-decoration-color: var(--ink); }
h1, h2, h3 { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; letter-spacing: -0.01em; margin: 0 0 8px; }
h1 { font-size: 34px; line-height: 1.1; }
h2 { font-size: 24px; margin-top: 36px; }
h3 { font-size: 19px; margin-top: 12px; }
code { font: 13px/1.4 "JetBrains Mono", Menlo, monospace; background: var(--paper-2); padding: 1px 5px; border-radius: 4px; }
.quiet { color: var(--ink-3); }
.hint { display: block; font-size: 13px; color: var(--ink-3); margin-top: 3px; }
.sep { color: var(--ink-3); margin: 0 4px; }

/* layout */
.top { display: flex; align-items: center; gap: 16px; padding: 14px 28px; border-bottom: 1px solid var(--rule); background: var(--paper); }
.wordmark { font: 400 24px/1 "Instrument Serif", "Times New Roman", serif; letter-spacing: -0.04em; font-synthesis: none; text-decoration: none; }
.wordmark .dot { color: var(--accent); }
.product { color: var(--ink-2); }
.top nav { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.top nav a { text-decoration: none; }
main { max-width: 1120px; margin: 0 auto; padding: 28px 28px 60px; }
footer { color: var(--ink-3); font-size: 13px; text-align: center; padding: 24px; border-top: 1px solid var(--rule); }
.narrow { max-width: 460px; margin: 48px auto; }
.page-head { margin-bottom: 20px; }
.crumbs { color: var(--ink-3); margin: 0 0 6px; }
.tabs { display: flex; gap: 14px; margin-top: 12px; flex-wrap: wrap; }
.tabs a { text-decoration: none; padding: 6px 12px; border: 1px solid var(--rule); border-radius: 999px; background: var(--white); font-size: 14px; }
.tabs a:hover { border-color: var(--ink); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 820px) { .two { grid-template-columns: 1fr; } .top { padding: 12px 16px; } main { padding: 20px 16px 48px; } }

/* cards, tiles */
.card { background: var(--white); border: 1px solid var(--rule); border-radius: 10px; padding: 18px 20px; margin: 18px 0; }
.card > h3:first-child, .card > h2:first-child { margin-top: 0; }
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 12px 0 18px; }
@media (max-width: 820px) { .tiles { grid-template-columns: repeat(2, 1fr); } }
.tile { background: var(--white); border: 1px solid var(--rule); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.tile .value { font: 400 30px/1.1 "Instrument Serif", Georgia, serif; }
.tile .small-value { font-size: 22px; }
.tile .of { color: var(--ink-3); font-size: 18px; }
.tile .label { color: var(--ink-3); font-size: 13px; }
.count { font-size: 14px; color: var(--ink-3); font-family: "Instrument Sans", sans-serif; margin-left: 8px; vertical-align: middle; }
.small-link { font-size: 14px; font-family: "Instrument Sans", sans-serif; margin-left: 10px; vertical-align: middle; }

/* tables */
table.list { width: 100%; border-collapse: collapse; background: var(--white); border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; margin: 10px 0 14px; }
table.list th, table.list td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
table.list th { font-weight: 600; font-size: 13px; color: var(--ink-2); background: var(--paper-2); }
table.list tr:last-child td { border-bottom: 0; }
table.list .num { text-align: right; font-variant-numeric: tabular-nums; }
table.list.compact th, table.list.compact td { padding: 6px 10px; font-size: 14px; }
tr.revoked td { color: var(--ink-3); }
.empty { color: var(--ink-3); padding: 18px; border: 1px dashed var(--rule); border-radius: 10px; }
ul.plain { padding-left: 18px; margin: 6px 0; }
ul.plain li { margin-bottom: 6px; }
.links a { margin-right: 14px; }

/* badges */
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--rule); background: var(--paper-2); color: var(--ink-2); }
.badge.ok { border-color: var(--ink); color: var(--ink); background: var(--white); }
.badge.refused, .badge.error, .badge.unauthenticated { border-color: var(--danger); color: var(--danger); background: #fbeeec; }
.badge.stage { font-family: "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: 0.06em; }
.hop { display: inline-block; font-size: 13px; margin-right: 8px; }

/* forms */
form.stack { display: flex; flex-direction: column; gap: 14px; }
form.stack label, form.grid-form label, form.row-form label { display: flex; flex-direction: column; gap: 5px; font-size: 14px; color: var(--ink-2); }
form.grid-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
form.grid-form .wide { grid-column: 1 / -1; }
form.row-form { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
@media (max-width: 820px) { form.grid-form { grid-template-columns: 1fr; } }
input[type=text], input[type=email], input[type=password], textarea, select { font: inherit; color: var(--ink); background: var(--white); border: 1px solid var(--rule); border-radius: 8px; padding: 9px 11px; }
input[type=file] { font: inherit; }
textarea { resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--ink); }
button { font: inherit; cursor: pointer; border-radius: 999px; border: 1px solid var(--ink); background: var(--white); color: var(--ink); padding: 8px 16px; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
button.primary:hover { filter: brightness(0.96); }
button.small { padding: 4px 10px; font-size: 13px; }
button.linklike { border: 0; background: none; padding: 0; text-decoration: underline; text-decoration-color: var(--rule); }
button.danger-button { border-color: var(--danger); color: var(--danger); }
button.danger-button:hover { background: #fbeeec; }
.inline { display: inline; }
.form-error { color: var(--danger); background: #fbeeec; border: 1px solid #efcac4; border-radius: 8px; padding: 10px 12px; }
details.card summary { cursor: pointer; list-style: none; }
details.card summary h3 { display: inline; }
details.card summary::before { content: "▸ "; color: var(--ink-3); }
details[open].card summary::before { content: "▾ "; }

/* flash */
.flash { border-radius: 10px; padding: 14px 18px; margin-bottom: 18px; border: 1px solid var(--rule); background: var(--white); }
.flash.notice { border-left: 4px solid var(--accent); }
.flash.error { border-left: 4px solid var(--danger); color: var(--danger); }
.flash.secret { border-left: 4px solid var(--accent); }
.flash.secret h3 { margin-top: 0; }
.secret-row code { font-size: 14px; padding: 6px 10px; word-break: break-all; }

/* charts */
.chart { max-width: 100%; height: auto; display: block; margin: 6px 0 10px; }
.chart-label { font: 13px "Instrument Sans", sans-serif; fill: var(--ink-2); }
.chart-value { font: 13px "JetBrains Mono", monospace; fill: var(--ink); }
.chart-axis { font: 11px "JetBrains Mono", monospace; fill: var(--ink-3); }
.chart-bar { fill: var(--ink-2); }
.chart-bar-zero { fill: var(--rule); }

/* prose */
.prose p { margin: 0 0 12px; }
.prose h3, .prose h4, .prose h5 { margin-top: 18px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 16px 0; }
.card.danger { border-color: #efcac4; }

/* chat */
.tabs a.tab-chat { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.chat { background: var(--white); border: 1px solid var(--rule); border-radius: 12px; padding: 18px 20px; margin: 10px 0 14px; }
.messages { display: flex; flex-direction: column; gap: 14px; min-height: 120px; }
.msg { display: flex; flex-direction: column; max-width: 85%; }
.msg.user { align-self: flex-end; align-items: flex-end; }
.msg.assistant { align-self: flex-start; }
.msg .bubble { border-radius: 12px; padding: 10px 14px; border: 1px solid var(--rule); background: var(--paper); white-space: normal; }
.msg.user .bubble { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); white-space: pre-wrap; }
.msg .bubble.streaming { white-space: pre-wrap; }
.msg .bubble.prose p:last-child { margin-bottom: 0; }
.msg .activity { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.msg .activity span { font: 12px "JetBrains Mono", monospace; color: var(--ink-3); background: var(--paper-2); border-radius: 999px; padding: 2px 9px; }
.msg .activity:empty { display: none; }
.msg .meta { font-size: 12px; margin-top: 4px; }
.ask-form { display: flex; gap: 10px; align-items: flex-end; margin-top: 16px; }
.ask-form textarea { flex: 1; }
.small { font-size: 13px; }

/* chat workspace */
.chat-layout { display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 18px; align-items: start; }
@media (max-width: 900px) { .chat-layout { grid-template-columns: 1fr; } }
.chat-side { background: var(--white); border: 1px solid var(--rule); border-radius: 12px; padding: 14px; position: sticky; top: 16px; }
.chat-side .button-like { display: block; text-align: center; text-decoration: none; border-radius: 999px; padding: 9px 14px; background: var(--accent); color: var(--accent-ink); font-weight: 600; margin-bottom: 12px; }
.conv-list { list-style: none; padding: 0; margin: 0; max-height: 70vh; overflow: auto; }
.conv-list li a { display: block; text-decoration: none; padding: 9px 10px; border-radius: 8px; border: 1px solid transparent; }
.conv-list li a:hover { background: var(--paper); }
.conv-list li.active a { background: var(--paper); border-color: var(--rule); }
.conv-list .title { display: block; font-size: 14px; line-height: 1.3; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv-list .when { display: block; font-size: 12px; color: var(--ink-3); margin-top: 2px; }
.conv-list .closed .title { color: var(--ink-3); }
.chat-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.chat-head h2 { margin: 0; font-size: 20px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat .messages { max-height: 62vh; overflow: auto; padding-right: 4px; }

/* brand pairing on the sign-in page */
.brand-pair { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-logo { height: 26px; width: auto; display: block; }
.brand-name { font: 600 17px "Instrument Sans", sans-serif; }
.brand-x { color: var(--ink-3); font-size: 15px; }
.brand-pair .wordmark { font-size: 24px; line-height: 1; }

/* file picker: the native control is kept for the browser, the visible part is ours */
.file-pick { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.file-pick input[type=file] { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
.file-pick .file-button { display: inline-block; cursor: pointer; border-radius: 999px; border: 1px solid var(--ink); background: var(--white); padding: 8px 16px; color: var(--ink); font-size: 14px; }
.file-pick .file-button:hover { background: var(--paper); }
.file-pick input[type=file]:focus + .file-button { outline: 2px solid var(--accent); outline-offset: 1px; }
.file-pick .file-name { color: var(--ink-3); font-size: 14px; }
.file-pick .file-name.chosen { color: var(--ink); }