:root {
  --bg: #f6f3ee; --panel: #ffffff; --ink: #1f1d1a; --muted: #6b665f; --line: #e2ddd4;
  --accent: #b23a2a; --accent-ink: #ffffff; --ok: #2e7d32; --down: #c62828; --unknown: #8d8d8d;
  --tool: #4a5568; --notice: #fff6d6; --error: #fde8e8;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--ink);
  display: grid; grid-template-rows: auto 1fr auto auto; min-height: 100vh; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

header#top { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: center; justify-content: space-between;
  padding: 10px 16px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
.brand { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.pizzeria-name { font-size: 1.35rem; font-weight: 700; color: var(--accent); }
#pizzeria-select { font: inherit; padding: 4px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
#pizzeria-unavailable { margin: 0; color: var(--down); }
.controls { display: flex; align-items: center; gap: 10px; }
#lang-switch button, #start-over, #tts-toggle, #send, #mic, .confirm-btn, .resend, .retry-confirm {
  font: inherit; padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; background: #fff; cursor: pointer; }
#lang-switch button[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
#tts-toggle { font-size: 1.1rem; line-height: 1; }
#tts-toggle[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

main { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; padding: 16px; max-width: 1200px; width: 100%; margin: 0 auto; }
#chat { display: flex; flex-direction: column; gap: 8px; min-height: 300px; }
.msg { padding: 8px 12px; border-radius: 10px; max-width: 85%; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.user { align-self: flex-end; background: var(--ink); color: #fff; }
.msg.assistant { align-self: flex-start; background: var(--panel); border: 1px solid var(--line); }
.msg.tool-call, .msg.tool-result { align-self: flex-start; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8rem;
  color: var(--tool); background: #eef0f3; border-left: 3px solid var(--tool); max-width: 95%; }
.msg.notice { align-self: center; background: var(--notice); border: 1px solid #efd98a; }
.msg.error { align-self: flex-start; background: var(--error); border: 1px solid #f2b8b8; }
.msg.readback { border: 2px solid var(--accent); background: #fff8f6; }
.msg.readback.stale { opacity: 0.6; }
.readback .confirm-btn { display: block; margin-top: 8px; background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
.readback .confirm-btn:disabled { background: #ccc; border-color: #ccc; color: #666; cursor: default; }
.msg.notice button { margin-left: 8px; }

#basket { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px; align-self: start; position: sticky; top: 70px; }
#basket h2 { margin: 0 0 8px; font-size: 1rem; }
#basket-lines { list-style: none; margin: 0; padding: 0; }
#basket-lines li { display: flex; justify-content: space-between; gap: 8px; padding: 4px 0; border-bottom: 1px dashed var(--line); }
#basket-total { font-weight: 700; margin-top: 8px; }
#customer-line { color: var(--muted); margin-top: 6px; }
#order-result { margin-top: 10px; padding: 8px; background: #e8f5e9; border-radius: 8px; }
#submit-note { margin-top: 10px; padding: 8px; background: var(--notice); border-radius: 8px; }
#basket[data-state="SUBMITTED"] { border-color: var(--ok); }

#working { display: flex; align-items: center; gap: 8px; padding: 0 16px 8px; color: var(--muted); max-width: 1200px; width: 100%; margin: 0 auto; }
#working[hidden] { display: none; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); animation: pulse 1s infinite alternate; }
@keyframes pulse { from { opacity: 0.3; } to { opacity: 1; } }

#composer { display: flex; gap: 8px; padding: 0 16px 12px; max-width: 1200px; width: 100%; margin: 0 auto; }
#text { flex: 1; font: inherit; padding: 8px 12px; border: 1px solid var(--line); border-radius: 6px; }
#send { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
#mic[aria-pressed="true"] { background: var(--down); color: #fff; border-color: var(--down); }

footer { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; padding: 8px 16px; font-size: 0.82rem; color: var(--muted);
  background: var(--panel); border-top: 1px solid var(--line); }
footer code { user-select: all; }
.badge { padding: 1px 8px; border-radius: 999px; color: #fff; background: var(--unknown); }
.badge[data-state="ok"] { background: var(--ok); }
.badge[data-state="down"] { background: var(--down); }
.build { margin-left: auto; }

@media (max-width: 800px) { main { grid-template-columns: 1fr; } #basket { position: static; } }