:root {
  color-scheme: dark;

  --bg:        #0c0e13;
  --bg-2:      #11141b;
  --panel:     #161a23;
  --panel-2:   #1c212c;
  --panel-3:   #232936;
  --line:      #262c3a;
  --line-soft: #1e2430;

  --text:  #e9ebf2;
  --dim:   #98a0b3;
  --faint: #6b7385;

  /* Accent is pale, so anything filled with it needs dark ink. */
  --accent:       #FFBFEC;
  --accent-ink:   #17121b;
  --accent-hover: #ffd4f2;
  --accent-soft:  rgba(255, 191, 236, .12);
  --accent-line:  rgba(255, 191, 236, .38);

  --ok:     #4ade9b;
  --ok-bg:  rgba(74, 222, 155, .12);
  --warn:   #f0b445;
  --warn-bg:rgba(240, 180, 69, .12);
  --danger: #f4707d;
  --danger-bg: rgba(244, 112, 125, .12);

  --radius: 12px;
  --radius-sm: 8px;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -12px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
/* Without this an inline `display:` beats the hidden attribute and leaves an
   invisible overlay swallowing every click on the page. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ─────────────── header ─────────────── */
header {
  display: flex; align-items: center; gap: 14px;
  padding: 0 20px; height: 58px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
  position: sticky; top: 0; z-index: 50;
}
.brand { font-size: 17px; font-weight: 700; letter-spacing: -.02em; white-space: nowrap; }
.brand span { color: var(--accent); }

nav { display: flex; gap: 2px; margin-left: 10px; flex: 1; flex-wrap: wrap; }
nav button {
  background: transparent; border: 0; color: var(--dim);
  padding: 7px 13px; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: 7px;
  font-family: inherit;
}
nav button:hover { color: var(--text); background: var(--panel-2); }
nav button.active { color: var(--text); background: var(--panel-3); }
/* The primary call to action in the whole product. */
nav button.hero {
  background: var(--accent); color: var(--accent-ink); font-weight: 650;
}
nav button.hero:hover { background: var(--accent-hover); color: var(--accent-ink); }
nav button.hero.active { background: var(--accent); color: var(--accent-ink); }
nav .count {
  background: rgba(0,0,0,.28); border-radius: 20px; padding: 0 7px;
  font-size: 11px; font-weight: 700; min-width: 19px; text-align: center;
}
nav button:not(.hero) .count { background: var(--accent); color: var(--accent-ink); }

.hdr-right { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.badge {
  font-size: 12px; padding: 3px 10px; border-radius: 20px;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--dim);
  white-space: nowrap;
}
.badge.ok { color: var(--ok); border-color: rgba(74,222,155,.3); background: var(--ok-bg); }
.badge.click { cursor: pointer; }
.badge.click:hover { border-color: var(--accent-line); color: var(--text); }

/* ─────────────── layout ─────────────── */
main { padding: 26px 20px 60px; max-width: 1180px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; animation: rise .18s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }

.grid { display: grid; gap: 16px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.side { grid-template-columns: 1.5fr 1fr; }
.grid.stats { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
@media (max-width: 940px) {
  .grid.two, .grid.side { grid-template-columns: 1fr; }
  nav button { padding: 7px 10px; font-size: 13px; }
}

@media (max-width: 640px) {
  header { height: auto; padding: 10px 14px; flex-wrap: wrap; gap: 10px; }
  /* Nav scrolls sideways rather than pushing the page wider. */
  nav {
    /* flex-basis 100%, not width — `flex: 1` from the base rule sets basis to
       0 and stops it wrapping onto its own line. */
    order: 3; flex: 0 0 100%; margin-left: 0; flex-wrap: nowrap;
    overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }
  nav::-webkit-scrollbar { display: none; }
  nav button { white-space: nowrap; flex: 0 0 auto; }
  .hdr-right { margin-left: auto; order: 2; }
  .brand { order: 1; }

  main { padding: 18px 14px 48px; }
  .card { padding: 16px; }
  h1 { font-size: 21px; }
  .stat .n { font-size: 25px; }

  /* Send sits under the box instead of squeezing it to nothing. */
  .card .row { flex-wrap: wrap; }
  #chat-input, #chat-send { width: 100%; }
  .msg .bubble { max-width: 90%; }
  .steps .s { font-size: 10px; }
}

/* Nothing may widen the page. */
html, body { max-width: 100%; overflow-x: hidden; }
img, video, pre { max-width: 100%; }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow);
}
.card.flush { padding: 0; overflow: hidden; }
.card.accent { border-color: var(--accent-line); background:
  linear-gradient(var(--accent-soft), transparent 120px), var(--panel); }

h1 { font-size: 24px; margin: 0 0 6px; letter-spacing: -.025em; font-weight: 680; }
h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
     color: var(--faint); margin: 0 0 14px; font-weight: 700; }
h3 { font-size: 15px; margin: 20px 0 8px; font-weight: 620; letter-spacing: -.01em; }
.lede { font-size: 15px; color: var(--dim); margin: 0 0 18px; max-width: 62ch; }
p { margin: 0 0 10px; }

.muted { color: var(--dim); }
.faint { color: var(--faint); }
.small { font-size: 13px; }
.tiny  { font-size: 12px; }
.mono  { font-family: var(--mono); font-size: 12px; }
.center { text-align: center; }

/* ─────────────── controls ─────────────── */
button.primary {
  background: var(--accent); color: var(--accent-ink); border: 0;
  padding: 10px 18px; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 14px; font-weight: 650; font-family: inherit;
}
button.primary:hover { background: var(--accent-hover); }
button.primary:disabled { opacity: .5; cursor: default; }
button.primary.big { padding: 13px 26px; font-size: 15px; }

button.ghost {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line);
  padding: 8px 14px; border-radius: var(--radius-sm); cursor: pointer;
  font-size: 13px; font-family: inherit; font-weight: 500;
}
button.ghost:hover { border-color: var(--accent-line); background: var(--panel-3); }
button.ghost.on { border-color: var(--accent); color: var(--accent); }

input, textarea, select {
  background: var(--bg-2); border: 1px solid var(--line); color: var(--text);
  border-radius: var(--radius-sm); padding: 11px 13px; font: inherit; width: 100%;
  font-size: 14px;
}
input:focus, textarea:focus, select:focus {
  outline: 0; border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 76px; }
::placeholder { color: var(--faint); }

label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 13px; color: var(--dim);
  margin-bottom: 6px; font-weight: 500; }

a { color: var(--accent); }
a.primary { color: var(--accent-ink); text-decoration: none; }

/* ─────────────── data ─────────────── */
/* Wide content scrolls inside its own box; the page body never does. */
.card table { display: block; overflow-x: auto; white-space: nowrap; }
.card table tbody, .card table thead { display: table; width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line-soft); }
th { color: var(--faint); font-weight: 700; font-size: 11px;
     text-transform: uppercase; letter-spacing: .06em; }
tr:last-child td { border-bottom: 0; }

.pill {
  display: inline-block; font-size: 11.5px; padding: 2px 9px; border-radius: 20px;
  background: var(--panel-2); border: 1px solid var(--line); font-weight: 550;
}
.pill.ok     { color: var(--ok); border-color: rgba(74,222,155,.3); background: var(--ok-bg); }
.pill.warn   { color: var(--warn); border-color: rgba(240,180,69,.3); background: var(--warn-bg); }
.pill.danger { color: var(--danger); border-color: rgba(244,112,125,.3); background: var(--danger-bg); }
.pill.accent { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }

.stat .n { font-size: 30px; font-weight: 680; letter-spacing: -.03em; line-height: 1.1; }
.stat .l { color: var(--dim); font-size: 13px; margin-top: 3px; }

.list-item { padding: 13px 0; border-bottom: 1px solid var(--line-soft); }
.list-item:first-child { padding-top: 0; }
.list-item:last-child { border-bottom: 0; padding-bottom: 0; }

.row { display: flex; gap: 10px; align-items: center; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.spacer { flex: 1; }
.stack { display: flex; flex-direction: column; gap: 10px; }

.note {
  font-size: 13.5px; color: var(--dim); border-left: 2px solid var(--accent-line);
  padding: 2px 0 2px 12px; margin: 12px 0;
}
.callout {
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 13px 15px; font-size: 13.5px;
  color: var(--dim); margin: 12px 0;
}
.callout.accent { border-color: var(--accent-line); background: var(--accent-soft); }

.empty { text-align: center; padding: 34px 20px; color: var(--dim); }
.empty .big { font-size: 30px; margin-bottom: 10px; }
.empty p { max-width: 42ch; margin: 0 auto 14px; font-size: 14px; }

/* ─────────────── progress ─────────────── */
.bar { height: 8px; background: var(--panel-3); border-radius: 20px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent);
  border-radius: 20px; transition: width .4s ease; }

.steps { display: flex; gap: 0; margin: 6px 0 2px; }
.steps .s { flex: 1; text-align: center; font-size: 11.5px; color: var(--faint);
  padding-top: 16px; position: relative; }
.steps .s::before {
  content: ""; position: absolute; top: 4px; left: 50%; transform: translateX(-50%);
  width: 9px; height: 9px; border-radius: 50%; background: var(--panel-3);
  border: 2px solid var(--panel); z-index: 1;
}
.steps .s::after {
  content: ""; position: absolute; top: 8px; left: 0; width: 100%;
  height: 2px; background: var(--panel-3);
}
.steps .s:first-child::after { left: 50%; width: 50%; }
.steps .s:last-child::after { width: 50%; }
.steps .s.done { color: var(--dim); }
.steps .s.done::before { background: var(--accent); }
.steps .s.done::after { background: var(--accent); }
.steps .s.now { color: var(--accent); font-weight: 650; }
.steps .s.now::before { background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }

/* ─────────────── chat ─────────────── */
.thread { max-height: 400px; overflow-y: auto; padding-right: 6px; }
.chat   { min-height: 220px; max-height: 440px; overflow-y: auto; padding-right: 6px; }
.msg { margin-bottom: 12px; display: flex; }
.msg .bubble {
  max-width: 78%; padding: 10px 14px; border-radius: 14px;
  background: var(--panel-2); border: 1px solid var(--line); font-size: 14px;
}
.msg.out { justify-content: flex-end; }
.msg.out .bubble {
  background: var(--accent); border-color: var(--accent); color: var(--accent-ink);
}
.msg .meta { font-size: 11px; color: var(--faint); margin-top: 5px; }
.msg.out .bubble .meta { color: #6b5563; }

.trace {
  font-family: var(--mono); font-size: 11.5px; color: var(--dim);
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 12px; margin-top: 12px;
  white-space: pre-wrap; line-height: 1.5;
}

/* ─────────────── modal ─────────────── */
.modal-back {
  position: fixed; inset: 0; background: rgba(4,6,10,.7);
  backdrop-filter: blur(3px); display: grid; place-items: center;
  z-index: 100; padding: 20px;
}