/* VTG Assistant. Light only. Ported from the Think Water dashboard styles (colorfinance/thinkwater web/assets/app.css).
   Brand from vtgwaste.com.au (Oct 2026): green #3baf28 / #539838 / #5bba47, near-black #090b09, greys #8d8d8d #dedede #fafafa,
   Nunito. VTG's bright green fails WCAG AA for text on white, so it is used for the logo and accents only;
   buttons, links and the user bubble use --brand-strong (same hue, darker) for readable white text. */
:root {
  color-scheme: light;
  --brand: #3baf28; --brand-mid: #539838; --brand-strong: #2f6e1f; --brand-soft: #eaf6e7;
  --bg: #ffffff; --subtle: #fafafa; --hover: #f1f7ef;
  --ink: #090b09; --ink-2: #3f453f; --muted: #6f756f;
  --line: #e8e8e8; --line-2: #dedede;
  --accent: #2f6e1f;
  --good: #1f7a35; --good-bg: #e7f4ea; --bad: #b42318; --bad-bg: #fdecea; --warn: #8a5a00; --warn-bg: #fff5e0;
  --shadow: 0 1px 2px rgba(20,32,25,.05), 0 1px 3px rgba(20,32,25,.06);
  --radius: 10px;
  --font: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Nunito", system-ui, sans-serif;
}
* { box-sizing: border-box }
html { -webkit-text-size-adjust: 100% }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 15px; line-height: 1.5 }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-head); font-weight: 600; letter-spacing: -0.01em; text-wrap: balance }
h1 { font-size: 1.4rem } h2 { font-size: 1rem } h3 { font-size: 0.95rem }
a { color: var(--accent) }
.num { font-variant-numeric: tabular-nums }
[hidden] { display: none !important }
button, input, textarea { font: inherit; color: inherit }
button { cursor: pointer }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px }
@keyframes pulse { 50% { opacity: .35 } }

/* ---- buttons and inputs ---- */
.btn { display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 6px 14px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--bg); font-weight: 500; white-space: nowrap }
.btn:hover { background: var(--hover) }
.btn.primary { background: var(--brand-strong); border-color: var(--brand-strong); color: #fff }
.btn.primary:hover { filter: brightness(1.12) }
.btn.ghost { border-color: transparent; background: transparent; color: var(--ink-2) }
.btn.ghost:hover { background: var(--hover) }
.btn[disabled] { opacity: .5; cursor: default }
.btn.stop { background: var(--bad); border-color: var(--bad) }
.field { display: grid; gap: 4px }
.field label { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted) }
.input { min-height: 36px; padding: 6px 10px; border: 1px solid var(--line-2); border-radius: 8px; background: var(--bg) }

/* ---- sign in ---- */
.signin { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; background: var(--subtle) }
.signin > div { width: min(420px, 100%) }
.signin-card { width: min(420px, 100%); background: var(--bg); border: 1px solid var(--line); border-top: 4px solid var(--brand); border-radius: 14px; box-shadow: var(--shadow); padding: 28px 26px; display: grid; gap: 16px }
.signin-card .logo { height: 44px; width: auto; justify-self: start }
.signin-card p { margin: 0; color: var(--ink-2) }
.signin-card form { display: grid; gap: 12px }
.signin-card .input { width: 100%; min-height: 42px }
.signin-card .btn { justify-content: center; min-height: 42px }
.signin-foot { width: min(420px, 100%); margin-top: 14px; font-size: 0.78rem; color: var(--muted); display: grid; gap: 2px; text-align: center }
.form-error { background: var(--bad-bg); color: var(--bad); border-radius: 8px; padding: 10px 12px; margin: 0 }

/* ---- app shell ---- */
.app { height: 100dvh; display: grid; grid-template-rows: auto auto 1fr auto }
.appbar { border-bottom: 3px solid var(--brand); background: var(--bg) }
.appbar-inner { max-width: 920px; margin-inline: auto; padding-inline: 20px; height: 60px; display: flex; align-items: center; gap: 14px }
.appbar .logo { height: 30px; width: auto; display: block }
.appbar .product { font-weight: 700; color: var(--ink-2); padding-left: 14px; border-left: 1px solid var(--line-2) }
.appbar .spacer { flex: 1 }
.appbar .user { color: var(--ink-2); font-size: 0.86rem }
.pill { display: inline-flex; align-items: center; font-size: 0.74rem; font-weight: 700; padding: 2px 9px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-strong) }
.sample-banner { display: none; background: var(--warn-bg); color: var(--warn); border-bottom: 1px solid #f3dfb0; text-align: center; font-size: 0.82rem; padding: 6px 16px }
body.on-sample .sample-banner { display: block }

/* ---- chat ---- */
.chat-log { overflow-y: auto; overscroll-behavior: contain }
.chat-col { max-width: 920px; margin-inline: auto; padding: 24px 20px; display: flex; flex-direction: column; gap: 18px }
.msg { max-width: 100%; min-width: 0 }
.msg.user { align-self: flex-end; max-width: 80%; background: var(--brand-strong); color: #fff; padding: 9px 14px; border-radius: 14px 14px 4px 14px; white-space: pre-wrap; overflow-wrap: anywhere }
.msg.bot { align-self: stretch; overflow-wrap: anywhere }
.msg.bot p { margin: 0 0 8px } .msg.bot p:last-child { margin-bottom: 0 }
.msg.bot h4 { font-size: 0.95rem; margin: 10px 0 4px }
.msg.bot ul, .msg.bot ol { margin: 0 0 8px; padding-left: 20px }
.msg.bot code { font-size: 0.85em; background: var(--subtle); padding: 1px 4px; border-radius: 4px }
.msg.bot .err { color: var(--bad); background: var(--bad-bg); border-radius: 8px; padding: 8px 10px; margin-top: 6px }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; margin: 6px 0 10px }
table { border-collapse: collapse; width: 100%; font-size: 0.86rem }
th, td { padding: 7px 10px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap }
th { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); background: var(--subtle) }
tr:last-child td { border-bottom: 0 }
.steps { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px }
.step { display: inline-flex; align-items: center; gap: 6px; font-size: 0.74rem; color: var(--ink-2); background: var(--subtle); border: 1px solid var(--line); padding: 2px 9px; border-radius: 999px }
.step::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--good) }
.step.running::before { background: var(--brand); animation: pulse 1.2s ease-in-out infinite }
.typing { display: inline-flex; gap: 4px; padding: 4px 0 }
.typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--line-2); animation: pulse 1s ease-in-out infinite }
.typing span:nth-child(2) { animation-delay: .15s } .typing span:nth-child(3) { animation-delay: .3s }
.hello h2 { font-size: 1.35rem; color: var(--ink); margin-bottom: 4px }
.hello p { margin: 0; color: var(--ink-2) }
.suggest { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 8px }
.suggest button { text-align: left; border: 1px solid var(--line-2); background: var(--bg); border-radius: 10px; padding: 10px 12px; display: grid; gap: 2px; align-content: start }
.suggest button:hover { background: var(--hover); border-color: var(--brand) }
.suggest small { font-size: 0.68rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--brand-strong) }
.msg-actions { display: flex; gap: 6px; margin-top: 6px }
.msg-actions button { border: 1px solid var(--line); background: var(--bg); border-radius: 999px; padding: 2px 10px; font-size: 0.74rem; color: var(--ink-2) }
.msg-actions button:hover { background: var(--hover) }
.chat-form { border-top: 1px solid var(--line); background: var(--bg) }
.chat-form-inner { max-width: 920px; margin-inline: auto; padding: 12px 20px calc(10px + env(safe-area-inset-bottom, 0px)); display: grid; gap: 6px }
.composer { display: flex; gap: 8px; align-items: flex-end; border: 1px solid var(--line-2); border-radius: 12px; padding: 6px 6px 6px 12px }
.composer:focus-within { border-color: var(--brand-mid); box-shadow: 0 0 0 3px rgba(59,175,40,.18) }
.composer textarea { flex: 1; border: 0; outline: 0; resize: none; min-height: 24px; max-height: 160px; padding: 6px 0; background: transparent; line-height: 1.4 }
.chat-foot { margin: 0; font-size: 0.72rem; color: var(--muted) }

@media (max-width: 640px) {
  .appbar .product, .appbar .user { display: none }
  .suggest { grid-template-columns: 1fr }
  .msg.user { max-width: 90% }
}