:root {
  --bg: #f6f7f9;
  --panel: #fff;
  --ink: #0f172a;
  --ink2: #334155;
  --mute: #64748b;
  --line: #e2e8f0;
  --line2: #cbd5e1;
  --blue: #2563eb;
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --green: #15803d;
  --green-50: #f0fdf4;
  --amber: #b45309;
  --amber-50: #fffbeb;
  --red: #b91c1c;
  --red-50: #fef2f2;
  --violet: #6d28d9;
  --violet-50: #f5f3ff;
  --grey-50: #f8fafc;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --r: 10px;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font:
    14px/1.5 -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Inter,
    system-ui,
    sans-serif;
}
a {
  color: var(--blue);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
button {
  font: inherit;
}
.top {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}
.brand {
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}
.brand:hover {
  text-decoration: none;
}
.mark {
  color: var(--blue);
}
nav {
  display: flex;
  gap: 4px;
  flex: 1;
}
nav a {
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--ink2);
  font-weight: 500;
}
nav a.on {
  background: var(--blue-50);
  color: var(--blue);
}
nav a:hover {
  text-decoration: none;
  background: var(--grey-50);
}
.badge {
  display: inline-block;
  min-width: 18px;
  padding: 0 5px;
  border-radius: 99px;
  background: var(--amber);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  margin-left: 4px;
}
.me {
  font-size: 12.5px;
  color: var(--mute);
  display: flex;
  gap: 8px;
  align-items: center;
}
.wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 20px 60px;
}
h1 {
  font-size: 22px;
  margin: 4px 0 6px;
}
h2 {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 26px 0 8px;
}
.muted {
  color: var(--mute);
}
.small {
  font-size: 12.5px;
}
.gh {
  font-family: var(--mono);
  font-size: 12px;
}
.row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 14px 16px;
}
.btn {
  border: 1px solid var(--line2);
  background: #fff;
  border-radius: 8px;
  padding: 7px 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--ink);
}
.btn:hover {
  border-color: var(--ink2);
}
.btn.pri {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.btn.pri:hover {
  background: #1d4ed8;
}
.btn.ok {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}
.btn.warn {
  color: var(--red);
  border-color: #fecaca;
}
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line2);
  background: #fff;
  color: var(--ink2);
  white-space: nowrap;
  font-weight: 500;
}
.pill.blue {
  background: var(--blue-50);
  border-color: var(--blue-100);
  color: var(--blue);
}
.pill.green {
  background: var(--green-50);
  border-color: #bbf7d0;
  color: var(--green);
}
.pill.amber {
  background: var(--amber-50);
  border-color: #fde68a;
  color: var(--amber);
}
.pill.violet {
  background: var(--violet-50);
  border-color: #ddd6fe;
  color: var(--violet);
}
.pill.red {
  background: var(--red-50);
  border-color: #fecaca;
  color: var(--red);
}
.tag {
  display: inline-block;
  font-size: 10.5px;
  padding: 1px 6px;
  border-radius: 999px;
  background: var(--green-50);
  color: var(--green);
  margin-left: 4px;
  font-weight: 600;
  vertical-align: 1px;
}
textarea,
input[type="text"] {
  width: 100%;
  border: 1px solid var(--line2);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  resize: vertical;
  background: #fff;
  color: var(--ink);
}
textarea:focus,
input:focus {
  outline: 2px solid var(--blue-100);
  border-color: var(--blue);
}
/* home */
.hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
}
.hero textarea {
  min-height: 120px;
  font-size: 15px;
  margin: 10px 0;
}
.list {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 14px;
  padding: 11px 15px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.item:last-child {
  border-bottom: 0;
}
.item:hover {
  background: var(--grey-50);
  text-decoration: none;
}
.item .t {
  font-weight: 600;
}
.item .s {
  font-size: 12.5px;
  color: var(--mute);
}
.empty {
  padding: 18px;
  text-align: center;
  color: var(--mute);
}
.attachrow {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.att {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  font-size: 12px;
  border: 1px solid var(--line2);
  border-radius: 6px;
  padding: 3px 8px;
  background: #fff;
}
.att button {
  border: 0;
  background: none;
  cursor: pointer;
  color: var(--mute);
  padding: 0;
}
/* studio */
.studio {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  height: calc(100vh - 53px);
}
@media (max-width: 980px) {
  .studio {
    grid-template-columns: 1fr;
    height: auto;
  }
  .brief {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}
.chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: #fff;
}
.sbar {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.sbar .ti {
  font-weight: 700;
  flex: 1;
  min-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.thread {
  flex: 1;
  overflow: auto;
  padding: 18px 20px;
}
.msg {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  animation: in 0.2s ease;
}
@keyframes in {
  from {
    opacity: 0;
    transform: translateY(3px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.av {
  flex: 0 0 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: #0ea5e9;
}
.av.c {
  background: #d97706;
}
.av.o {
  background: #7c3aed;
}
.bub {
  min-width: 0;
  flex: 1;
}
.who {
  font-size: 12px;
  color: var(--mute);
  margin-bottom: 3px;
}
.who b {
  color: var(--ink2);
}
.txt {
  background: var(--grey-50);
  border: 1px solid var(--line);
  border-radius: 4px 12px 12px 12px;
  padding: 9px 12px;
  overflow-wrap: anywhere;
}
.msg.u .txt {
  background: var(--blue-50);
  border-color: var(--blue-100);
}
.msg.o .txt {
  background: var(--violet-50);
  border-color: #ddd6fe;
}
.txt p {
  margin: 0 0 8px;
}
.txt p:last-child {
  margin-bottom: 0;
}
.txt ul,
.txt ol {
  margin: 4px 0 8px;
  padding-left: 20px;
}
.txt code {
  font-family: var(--mono);
  font-size: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 4px;
}
.txt pre {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  overflow: auto;
  font: 12px/1.5 var(--mono);
}
.txt table {
  border-collapse: collapse;
  font-size: 12.5px;
  margin: 6px 0;
  background: #fff;
}
.txt th,
.txt td {
  border: 1px solid var(--line);
  padding: 4px 8px;
  text-align: left;
  vertical-align: top;
}
.tools {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0 0 6px;
}
.tool {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--mute);
  display: flex;
  gap: 6px;
  align-items: baseline;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.tool i {
  font-style: normal;
  color: var(--blue);
}
.tool.mem i {
  color: var(--violet);
}
.tool.sk i {
  color: var(--amber);
}
.tool.gh i,
.tool.agent i {
  color: var(--ink2);
}
.tools details summary {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--mute);
  cursor: pointer;
  list-style: none;
}
.core {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 4px 10px;
  margin: 8px 0 2px;
  background: #fff;
  border: 1px solid var(--blue-100);
  border-radius: 8px;
  padding: 9px 11px;
}
.core dt {
  color: var(--mute);
  font-size: 12px;
}
.core dd {
  margin: 0;
  font-weight: 500;
  font-size: 13px;
}
.qcard {
  margin-top: 8px;
  border: 1px solid var(--blue-100);
  background: #fff;
  border-radius: 10px;
  padding: 10px 12px;
}
.qcard .qq {
  font-weight: 600;
  margin: 4px 0 6px;
}
.ans {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line2);
  background: #fff;
  border-radius: 8px;
  padding: 7px 10px;
  margin: 5px 0;
  cursor: pointer;
  color: var(--ink);
}
.ans:hover:not(:disabled) {
  border-color: var(--blue);
  background: var(--blue-50);
}
.ans.sug {
  border-color: var(--blue);
}
.ans.pick {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}
.ans:disabled {
  cursor: default;
}
.why {
  font-size: 12px;
  color: var(--mute);
  margin-top: 6px;
}
.sys {
  margin: 4px auto 16px;
  max-width: 620px;
  text-align: center;
}
.sys .sx {
  display: inline-block;
  background: #fff;
  border: 1px dashed var(--line2);
  border-radius: 10px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--ink2);
  text-align: left;
}
.sys.pass .sx {
  border: 1px solid #bbf7d0;
  background: var(--green-50);
  color: var(--green);
}
.sys.err .sx {
  border: 1px solid #fecaca;
  background: var(--red-50);
  color: var(--red);
}
.sys ol {
  margin: 6px 0 0;
  padding-left: 18px;
}
.filed {
  border: 1px solid #bbf7d0;
  background: var(--green-50);
  border-radius: 12px;
  padding: 12px 14px;
  text-align: left;
}
.filed a {
  display: block;
  font-weight: 600;
  margin-top: 4px;
}
.typing {
  display: flex;
  gap: 4px;
  padding: 2px 0 10px 38px;
}
.typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line2);
  animation: b 1s infinite;
}
.typing span:nth-child(2) {
  animation-delay: 0.15s;
}
.typing span:nth-child(3) {
  animation-delay: 0.3s;
}
@keyframes b {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}
.composer {
  border-top: 1px solid var(--line);
  padding: 10px 12px;
  background: #fff;
}
.composer textarea {
  min-height: 44px;
  max-height: 220px;
  resize: none;
}
.composer .row {
  margin-top: 6px;
  justify-content: space-between;
}
/* brief panel */
.brief {
  overflow: auto;
  padding: 14px;
  background: var(--grey-50);
  border-left: 1px solid var(--line);
  min-height: 0;
}
.ready {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  margin-bottom: 10px;
}
.meter {
  height: 7px;
  background: var(--line);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 7px;
}
.meter b {
  display: block;
  height: 100%;
  background: var(--blue);
  transition: width 0.4s;
}
.sec {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 11px;
  margin-bottom: 7px;
}
.sec .sh {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 12.5px;
  cursor: pointer;
  gap: 8px;
}
.sec .sb {
  font-size: 12.5px;
  color: var(--ink2);
  margin-top: 5px;
  overflow-wrap: anywhere;
}
.sec .sb p {
  margin: 0 0 6px;
}
.sec .sb ul {
  margin: 2px 0 4px;
  padding-left: 16px;
}
.sec .sb table {
  border-collapse: collapse;
  font-size: 11.5px;
}
.sec .sb th,
.sec .sb td {
  border: 1px solid var(--line);
  padding: 3px 5px;
  text-align: left;
}
.sec .sb code {
  font-family: var(--mono);
  font-size: 11px;
}
.sec.empty {
  opacity: 0.55;
}
.sec.empty .sb {
  display: none;
}
.sec.flash {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-50);
}
.st {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.st.empty {
  color: var(--line2);
}
.st.draft {
  color: var(--amber);
}
.st.done,
.st.na {
  color: var(--green);
}
.st.owner {
  color: var(--violet);
}
.actions {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  margin-bottom: 10px;
}
.actions .btn {
  width: 100%;
  margin-top: 6px;
}
.ruling {
  font-size: 12.5px;
  padding: 6px 0;
  border-top: 1px solid var(--line);
}
.ruling:first-child {
  border-top: 0;
}
.notice {
  border-radius: 10px;
  padding: 9px 11px;
  margin-bottom: 10px;
  font-size: 12.5px;
}
.notice.amber {
  background: var(--amber-50);
  border: 1px solid #fde68a;
  color: var(--amber);
}
.notice.violet {
  background: var(--violet-50);
  border: 1px solid #ddd6fe;
  color: var(--violet);
}
.notice.blue {
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  color: var(--blue);
}
/* modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 20px;
}
.modal[hidden] {
  display: none;
}
.sheet {
  background: #fff;
  border-radius: 14px;
  max-width: 880px;
  width: 100%;
  max-height: 88vh;
  overflow: auto;
  padding: 20px 24px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}
.sheet .txt {
  background: none;
  border: 0;
  padding: 0;
}
.sheet h2 {
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
}

/* sign-in */
.signin .card {
  max-width: 380px;
  margin: 60px auto;
  padding: 26px 26px 22px;
  text-align: center;
}
.signin h2 {
  margin: 0 0 6px;
}
.signin #gsi {
  display: flex;
  justify-content: center;
  margin: 18px 0 4px;
  min-height: 44px;
}
.signin-err {
  color: var(--red);
  font-size: 13px;
  margin: 10px 0 0;
}
.me a {
  color: var(--mute);
}

/* a message that changed in place does not fade in again */
.msg.still {
  animation: none;
}
/* what happens next, above the composer */
.next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 8px;
  padding: 8px 12px;
  border-radius: var(--r);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  font-size: 13px;
}
.next.go {
  background: var(--green-50);
  border-color: #bbf7d0;
}
.next.amber {
  background: var(--amber-50);
  border-color: #fde68a;
}
.actions.go {
  border-color: #bbf7d0;
  background: var(--green-50);
}

.next.violet {
  background: var(--violet-50);
  border-color: #ddd6fe;
}
.next .btn {
  white-space: nowrap;
  text-decoration: none;
}

details.proposed {
  margin-top: 10px;
}
details.proposed summary {
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 600;
}
/* long sizing signals stay inside the panel */
.ready .pill {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}