:root {
  --charcoal: #2e3434;
  --charcoal-deep: #242929;
  --sage: #516361;
  --sage-soft: #5e716f;
  --flame: #ff5b20;
  --cream: #f8f6ef;
  --cream-dim: rgba(248, 246, 239, 0.72);
  --line: rgba(248, 246, 239, 0.18);
  --shadow: rgba(12, 15, 15, 0.26);
}
* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body { background: transparent; color: var(--cream); font-family: "Karla", sans-serif; }
button, input, a { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
.sr-only { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.shell {
  width: 100%; min-height: 720px; height: 100vh; height: 100dvh;
  display: flex; flex-direction: column; overflow: hidden;
  background: radial-gradient(circle at 12% 0%, rgba(255, 91, 32, 0.12), transparent 30%), linear-gradient(180deg, var(--charcoal) 0%, var(--charcoal-deep) 100%);
  border: 1px solid var(--line); border-radius: 22px; box-shadow: 0 22px 60px var(--shadow);
}
header { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; padding: 19px 20px 17px; border-bottom: 1px solid var(--line); flex: 0 0 auto; }
.mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 15px; background: rgba(255,255,255,.055); border: 1px solid var(--line); }
.mark svg { width: 34px; height: 34px; overflow: visible; }
.identity { min-width: 0; }
h1 { margin: 0; font-family: "Libre Baskerville", serif; font-size: 1.18rem; line-height: 1.2; letter-spacing: .06em; }
.subtitle { margin-top: 4px; color: var(--cream-dim); font-size: .78rem; letter-spacing: .06em; }
.header-tools { display: flex; align-items: center; gap: 11px; }
.status { display: inline-flex; align-items: center; gap: 7px; color: var(--cream-dim); font-size: .72rem; white-space: nowrap; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--flame); box-shadow: 0 0 0 5px rgba(255,91,32,.13); }
.status.reconnecting .status-dot { background: #e9b949; box-shadow: 0 0 0 5px rgba(233,185,73,.13); }
.status.unavailable .status-dot { background: rgba(248,246,239,.46); box-shadow: 0 0 0 5px rgba(248,246,239,.08); }
#newChatBtn, #retryBtn, #copySummaryBtn, .fit-dismiss { appearance: none; border: 1px solid rgba(248,246,239,.28); border-radius: 999px; background: rgba(248,246,239,.05); color: var(--cream); padding: 7px 11px; font-size: .74rem; cursor: pointer; }
#newChatBtn, .fit-dismiss { color: var(--cream-dim); }
#newChatBtn:hover, #newChatBtn:focus-visible, #retryBtn:hover, #retryBtn:focus-visible, #copySummaryBtn:hover, #copySummaryBtn:focus-visible, .fit-dismiss:hover, .fit-dismiss:focus-visible { color: var(--cream); border-color: rgba(248,246,239,.68); outline: none; }
#chat { flex: 1 1 auto; overflow-y: auto; padding: 22px 18px 16px; display: flex; flex-direction: column; gap: 14px; scroll-behavior: smooth; }
#chat::-webkit-scrollbar { width: 8px; }
#chat::-webkit-scrollbar-thumb { background: rgba(248,246,239,.16); border-radius: 20px; }
.message { max-width: min(86%,650px); padding: 13px 16px; border-radius: 16px; line-height: 1.52; font-size: .96rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.message.root { align-self: flex-start; background: var(--sage); border-bottom-left-radius: 5px; }
.message.user { align-self: flex-end; background: var(--flame); border-bottom-right-radius: 5px; }
.message.root::before { content: "ROOT · Threshold Guide"; display: block; margin-bottom: 6px; color: var(--cream-dim); font-size: .67rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.message.thinking { color: var(--cream-dim); font-style: italic; }
.fit-panel { margin: 0 18px 13px; padding: 14px; border: 1px solid rgba(248,246,239,.2); border-radius: 16px; background: rgba(248,246,239,.045); flex: 0 0 auto; }
.fit-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.fit-heading, .handoff-label { color: var(--cream-dim); font-size: .68rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.fit-dismiss { padding: 5px 9px; font-size: .68rem; }
.service-matches { display: grid; gap: 9px; margin-top: 9px; }
.service-match { appearance: none; width: 100%; padding: 11px 12px; border: 1px solid transparent; border-radius: 12px; background: var(--sage-soft); color: var(--cream); text-align: left; cursor: pointer; transition: border-color 140ms ease, background 140ms ease, transform 140ms ease; }
.service-match:hover, .service-match:focus-visible { background: #687c79; border-color: rgba(248,246,239,.5); outline: none; transform: translateY(-1px); }
.service-title { font-weight: 700; }
.service-range { margin-top: 2px; color: var(--cream-dim); font-size: .79rem; }
.service-reason { margin: 7px 0 0; line-height: 1.4; font-size: .84rem; }
.service-choose { display: inline-block; margin-top: 9px; color: var(--cream); font-size: .76rem; font-weight: 700; }
.handoff-card { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.handoff-card p { margin: 7px 0 10px; line-height: 1.45; font-size: .86rem; }
#starters { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; padding: 0 18px 13px; flex: 0 0 auto; }
.starter { appearance: none; border: 1px solid rgba(248,246,239,.34); border-radius: 999px; background: rgba(248,246,239,.035); color: var(--cream); padding: 8px 12px; font-size: .79rem; cursor: pointer; transition: background 140ms ease,border-color 140ms ease,transform 140ms ease; }
.starter:hover, .starter:focus-visible { background: rgba(248,246,239,.11); border-color: rgba(248,246,239,.68); outline: none; transform: translateY(-1px); }
#recovery { justify-content: center; padding: 0 18px 12px; flex: 0 0 auto; }
.actions { padding: 0 18px 13px; display: flex; justify-content: center; flex: 0 0 auto; }
#helpLink { display: inline-flex; align-items: center; justify-content: center; gap: 8px; color: var(--cream); text-decoration: none; font-weight: 700; font-size: .84rem; padding: 10px 16px; border-radius: 999px; border: 1px solid rgba(255,91,32,.74); background: rgba(255,91,32,.14); transition: background 140ms ease,transform 140ms ease; }
#helpLink:hover, #helpLink:focus-visible { background: rgba(255,91,32,.25); outline: none; transform: translateY(-1px); }
#inputbar { display: grid; grid-template-columns: 1fr auto; gap: 9px; padding: 13px 14px calc(14px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); flex: 0 0 auto; }
#userInput { min-width: 0; width: 100%; border: 1px solid rgba(248,246,239,.23); border-radius: 12px; background: var(--sage); color: var(--cream); padding: 12px 14px; outline: none; font-size: .95rem; }
#userInput::placeholder { color: var(--cream-dim); }
#userInput:focus { border-color: rgba(248,246,239,.82); box-shadow: 0 0 0 3px rgba(248,246,239,.06); }
#sendBtn { appearance: none; border: 0; border-radius: 12px; background: var(--flame); color: white; padding: 0 19px; font-weight: 700; cursor: pointer; transition: filter 140ms ease,transform 140ms ease; }
#sendBtn:hover, #sendBtn:focus-visible { filter: brightness(1.08); outline: none; transform: translateY(-1px); }
#sendBtn:disabled { cursor: wait; opacity: .55; transform: none; }
footer { padding: 0 16px 11px; color: var(--cream-dim); text-align: center; font-size: .67rem; line-height: 1.4; flex: 0 0 auto; }
@media (max-width: 600px) {
  .shell { min-height: 650px; border-radius: 16px; }
  header { grid-template-columns: auto 1fr auto; padding: 15px 14px 14px; }
  .status { display: none; }
  .mark { width: 43px; height: 43px; }
  .message { max-width: 92%; font-size: .93rem; }
  #chat { padding-left: 12px; padding-right: 12px; }
  #starters, .actions, #recovery { padding-left: 12px; padding-right: 12px; }
  .fit-panel { margin-left: 12px; margin-right: 12px; }
  #inputbar { padding-left: 10px; padding-right: 10px; }
  #sendBtn { padding: 0 15px; }
  #newChatBtn { width: 38px; height: 38px; padding: 0; font-size: 0; }
  #newChatBtn::after { content: "↻"; font-size: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }