/* ==========================================================================
   Cloud Models — Datawords look & feel
   Token system with a light default and a dark theme under [data-theme="dark"],
   using the discreet Datawords-purple accent on neutral chrome (matches the
   AI Portal console). Theme is chosen by an inline <head> script and flipped by
   a top-bar toggle.
   ========================================================================== */

:root {
  --ground: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef0f3;
  --border: #e4e6ea;
  --border-strong: #d3d6dc;
  --ink: #16171d;
  --ink-2: #565a68;
  --ink-3: #878b98;
  --accent: #8a1fa8;
  --accent-ink: #8a1fa8;
  --accent-contrast: #ffffff;
  --accent-weak: #f4eafa;
  --accent-border: #e2cbef;
  --good: #1f9d63;  --good-bg: #e7f6ee;
  --warn: #b47316;  --warn-bg: #faf1e0;
  --bad:  #d34a45;  --bad-bg:  #fceceb;
  --topbar: #ffffff;
  --topbar-ink: #16171d;
  --topbar-ink-2: #565a68;
  --topbar-border: #e4e6ea;
  --topbar-fill: rgba(0, 0, 0, 0.045);
  --topbar-fill-strong: rgba(0, 0, 0, 0.075);
  --code-bg: #f0f1f4;
  --shadow: 0 12px 32px rgba(20, 22, 30, 0.14);
  --radius: 8px;
  --radius-s: 5px;
}

:root[data-theme="dark"] {
  --ground: #131318;
  --surface: #1c1d25;
  --surface-2: #22232e;
  --border: #2a2b37;
  --border-strong: #3b3c4b;
  --ink: #e9e9f1;
  --ink-2: #a2a4b8;
  --ink-3: #787a90;
  --accent: #8e3bb8;
  --accent-ink: #cba3ef;
  --accent-contrast: #ffffff;
  --accent-weak: #2b1f3f;
  --accent-border: #4a3568;
  --good: #4cc38a;  --good-bg: #17251e;
  --warn: #e0a94f;  --warn-bg: #2a2214;
  --bad:  #f0716a;  --bad-bg:  #2c1a19;
  --topbar: #15161f;
  --topbar-ink: #e9e9f1;
  --topbar-ink-2: #9fa1b5;
  --topbar-border: #2c2d3b;
  --topbar-fill: rgba(255, 255, 255, 0.07);
  --topbar-fill-strong: rgba(255, 255, 255, 0.10);
  --code-bg: #0f0f14;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--ground);
  color: var(--ink);
}
a { color: var(--accent-ink); }

/* --------------------------------------------------------------------------
   Datawords brand lockup — full logo in light, purple icon badge in dark.
   -------------------------------------------------------------------------- */
.dw-logo { display: inline-flex; align-items: center; line-height: 0; }
.dw-logo .dw-full { height: 20px; width: auto; display: block; }
.dw-logo .dw-icon { height: 24px; width: auto; display: none; }
:root[data-theme="dark"] .dw-logo .dw-full { display: none; }
:root[data-theme="dark"] .dw-logo .dw-icon { display: block; }

/* --------------------------------------------------------------------------
   Top bar
   -------------------------------------------------------------------------- */
.topbar {
  height: 48px;
  background: var(--topbar);
  color: var(--topbar-ink);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--topbar-border);
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 13.5px; white-space: nowrap;
  padding: 0 6px; color: var(--topbar-ink); text-decoration: none;
}
.brand .divider { color: var(--topbar-ink-2); font-weight: 400; margin: 0 2px; }
.brand .prod { color: var(--topbar-ink-2); font-weight: 500; }

.tb-btn {
  height: 32px; display: inline-flex; align-items: center; gap: 6px;
  padding: 0 10px; border-radius: var(--radius-s);
  color: var(--topbar-ink-2); font-size: 12.5px;
  background: none; border: 0; cursor: pointer; text-decoration: none;
  font-family: inherit;
}
.tb-btn:hover { background: var(--topbar-fill-strong); color: var(--topbar-ink); }
.tb-avatar {
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent);
  color: var(--accent-contrast); display: inline-flex; align-items: center;
  justify-content: center; font-size: 11px; font-weight: 700;
}
.tb-user { color: var(--topbar-ink-2); font-size: 12.5px; }

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline-flex; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: inline-flex; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
.theme-toggle-float {
  position: fixed; top: 14px; right: 16px; z-index: 80;
  width: 36px; height: 36px; display: grid; place-items: center;
  border-radius: var(--radius-s); border: 1px solid var(--border);
  background: var(--surface); color: var(--ink-2); cursor: pointer;
}
.theme-toggle-float:hover { color: var(--ink); background: var(--surface-2); }

/* --------------------------------------------------------------------------
   Buttons, cards, tables, badges (console pages)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink);
  border-radius: var(--radius-s); padding: 8px 13px; font-size: 13px;
  cursor: pointer; text-decoration: none; font-family: inherit;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); }
.btn.primary:hover { filter: brightness(1.07); background: var(--accent); }
.btn:disabled { opacity: .5; cursor: default; }

.page { max-width: 1000px; margin: 0 auto; padding: 26px 20px 60px; }
.page-head { display: flex; align-items: center; gap: 11px; margin-bottom: 4px; }
.page-head h1 { font-size: 20px; font-weight: 600; }
.page-sub { color: var(--ink-2); font-size: 13.5px; margin-bottom: 20px; }
.page-sub code, code.chip { background: var(--surface-2); padding: 1px 6px; border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.bar { display: flex; gap: 9px; align-items: center; margin-bottom: 16px; }
.bar .spacer { flex: 1; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }

.dw-table { width: 100%; border-collapse: collapse; font-size: 13.5px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.dw-table th, .dw-table td { text-align: left; padding: 11px 13px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.dw-table tr:last-child td { border-bottom: 0; }
.dw-table th { color: var(--ink-3); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; background: var(--surface-2); }
.dw-table tbody tr:hover td { background: var(--surface-2); }
.dw-table td.actions { text-align: right; white-space: nowrap; }
.muted { color: var(--ink-2); }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 11.5px; font-weight: 600; border: 1px solid transparent; }
.badge.on   { background: var(--good-bg); color: var(--good); border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.badge.off  { background: var(--bad-bg);  color: var(--bad);  border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.badge.wait { background: var(--warn-bg); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.badge.unk  { background: var(--surface-2); color: var(--ink-2); border-color: var(--border-strong); }
.badge.accent { background: var(--accent-weak); color: var(--accent-ink); border-color: var(--accent-border); }

.model-name { font-weight: 600; }
.model-id { color: var(--ink-3); font-size: 11.5px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.detail { font-size: 11px; color: var(--ink-3); margin-top: 3px; }
.msg-line { font-size: 13px; color: var(--ink-2); min-height: 18px; margin-bottom: 10px; }
.msg-line.err { color: var(--bad); }
.spin { display:inline-block; width:13px; height:13px; border:2px solid var(--border-strong); border-top-color: var(--accent); border-radius:50%; animation: sp .7s linear infinite; vertical-align:-2px; }
@keyframes sp { to { transform: rotate(360deg); } }

/* ==========================================================================
   Chat app layout
   ========================================================================== */
.app { display: flex; height: 100vh; overflow: hidden; }

#sidebar {
  width: 264px; background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; flex-shrink: 0;
}
#sidebar .side-head { padding: 13px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
#sidebar .side-head .prod { font-weight: 600; font-size: 13px; color: var(--ink-2); }
#new-chat {
  margin: 12px; padding: 10px 12px; background: var(--surface); border: 1px solid var(--border);
  color: var(--ink); border-radius: var(--radius-s); cursor: pointer; font-size: 13.5px;
  text-align: left; display: flex; align-items: center; gap: 8px; font-family: inherit;
}
#new-chat:hover { background: var(--surface-2); border-color: var(--border-strong); }
#conversations { flex: 1; overflow-y: auto; padding: 0 8px 8px; }
.conv-item {
  padding: 9px 10px; border-radius: var(--radius-s); cursor: pointer; font-size: 13.5px;
  color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
}
.conv-item:hover { background: var(--surface-2); color: var(--ink); }
.conv-item.active { background: var(--accent-weak); color: var(--accent-ink); }
.conv-item .del { opacity: 0; color: var(--ink-3); font-size: 14px; flex-shrink: 0; }
.conv-item:hover .del { opacity: .7; }
.conv-item .del:hover { opacity: 1; color: var(--bad); }

#main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--ground); }
.chat-head {
  height: 48px; padding: 0 16px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 10px; background: var(--surface);
}
.chat-head label { font-size: 12.5px; color: var(--ink-2); }
#model-select {
  background: var(--surface); color: var(--ink); border: 1px solid var(--border);
  border-radius: var(--radius-s); padding: 6px 9px; font-size: 13px; cursor: pointer;
  max-width: 340px; font-family: inherit;
}

#messages { flex: 1; overflow-y: auto; padding: 24px 0; }
.msg-row { padding: 6px 20px; display: flex; justify-content: center; }
.msg { width: 100%; max-width: 760px; display: flex; gap: 14px; }
.avatar { width: 30px; height: 30px; border-radius: 6px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; }
.msg.user .avatar { background: var(--surface-2); color: var(--ink-2); }
.msg.assistant .avatar { background: var(--accent); color: var(--accent-contrast); }
.bubble { padding-top: 4px; line-height: 1.65; font-size: 15px; overflow-wrap: anywhere; color: var(--ink); }
.msg.user .bubble { white-space: pre-wrap; }
.bubble p { margin: 0 0 12px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble ul, .bubble ol { margin: 0 0 12px 22px; }
.bubble li { margin: 3px 0; }
.bubble pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: var(--radius-s); padding: 12px 14px; overflow-x: auto; margin: 0 0 12px; }
.bubble code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13.5px; }
.bubble :not(pre) > code { background: var(--code-bg); padding: 2px 5px; border-radius: 4px; }
.bubble h1, .bubble h2, .bubble h3 { margin: 14px 0 8px; }
.bubble table { border-collapse: collapse; margin: 0 0 12px; }
.bubble th, .bubble td { border: 1px solid var(--border); padding: 6px 10px; }
.bubble a { color: var(--accent-ink); }
.cursor::after { content: "▋"; animation: blink 1s steps(1) infinite; color: var(--ink-3); }
@keyframes blink { 50% { opacity: 0; } }

.empty-state { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--ink-2); gap: 10px; text-align: center; }
.empty-state h2 { color: var(--ink); font-weight: 600; font-size: 24px; }

#composer-wrap { padding: 0 20px 22px; display: flex; justify-content: center; }
#composer {
  width: 100%; max-width: 760px; background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 16px; padding: 10px 12px; display: flex; align-items: flex-end; gap: 10px;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
#composer:focus-within { border-color: var(--accent-border); }
#input { flex: 1; background: transparent; border: none; color: var(--ink); font-size: 15px; resize: none; outline: none; max-height: 200px; line-height: 1.5; font-family: inherit; padding: 6px 4px; }
#input::placeholder { color: var(--ink-3); }
#send { width: 34px; height: 34px; border-radius: var(--radius-s); border: none; background: var(--accent); color: var(--accent-contrast); cursor: pointer; flex-shrink: 0; font-size: 16px; display: flex; align-items: center; justify-content: center; }
#send:hover:not(:disabled) { filter: brightness(1.08); }
#send:disabled { opacity: .4; cursor: not-allowed; }
.hint { text-align: center; font-size: 11.5px; color: var(--ink-3); margin-top: 8px; }
.error-banner { max-width: 760px; margin: 0 auto 8px; color: var(--bad); font-size: 13px; background: var(--bad-bg); border: 1px solid color-mix(in srgb, var(--bad) 35%, transparent); padding: 8px 12px; border-radius: var(--radius-s); }
