/* theme.css — AI Agent Sidekick design tokens.
   Light = "Daylight", Dark = "Midnight". Follows the system preference by
   default; [data-theme] on <html> (set by js/theme.js) overrides it. */

:root, :root[data-theme="light"] {
  --bg: #f1f5f9;
  --surface-1: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;

  --accent: #2563eb;
  --accent-bg: #dbeafe;
  --accent-border: #bfdbfe;
  --on-accent: #ffffff;

  --success: #059669;
  --success-bg: #d1fae5;
  --success-border: #a7f3d0;

  --warning: #b45309;
  --warning-bg: #fef3c7;
  --warning-border: #fde68a;
}

:root[data-theme="dark"] {
  --bg: #0b1120;
  --surface-1: #131c30;
  --surface-2: #1b2640;
  --border: #2a3656;
  --border-strong: #3b4a6b;

  --text-primary: #eaf0fb;
  --text-secondary: #b4c0d8;
  --text-muted: #8a98b5;

  --accent: #38bdf8;
  --accent-bg: rgba(56, 189, 248, 0.14);
  --accent-border: rgba(56, 189, 248, 0.45);
  --on-accent: #06121f;

  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.14);
  --success-border: rgba(52, 211, 153, 0.45);

  --warning: #fbbf24;
  --warning-bg: rgba(251, 191, 36, 0.14);
  --warning-border: rgba(251, 191, 36, 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120;
    --surface-1: #131c30;
    --surface-2: #1b2640;
    --border: #2a3656;
    --border-strong: #3b4a6b;

    --text-primary: #eaf0fb;
    --text-secondary: #b4c0d8;
    --text-muted: #8a98b5;

    --accent: #38bdf8;
    --accent-bg: rgba(56, 189, 248, 0.14);
    --accent-border: rgba(56, 189, 248, 0.45);
    --on-accent: #06121f;

    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.14);
    --success-border: rgba(52, 211, 153, 0.45);

    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.14);
    --warning-border: rgba(251, 191, 36, 0.45);
  }
}

:root {
  --radius: 10px;
  --radius-lg: 16px;
  --maxw: 760px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1 { font-size: 32px; font-weight: 600; line-height: 1.2; margin: 0 0 12px; color: var(--text-primary); }
h2 { font-size: 22px; font-weight: 600; margin: 0 0 10px; color: var(--text-primary); }
h3 { font-size: 17px; font-weight: 600; margin: 0 0 6px; color: var(--text-primary); }
p { margin: 0 0 14px; color: var(--text-secondary); }

.muted { color: var(--text-muted); }
.mono { font-feature-settings: "tnum"; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius);
  border: 1px solid var(--border-strong); background: var(--surface-1);
  color: var(--text-primary); font: inherit; font-weight: 500;
  cursor: pointer; transition: border-color .15s, background .15s, opacity .15s;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-primary:hover { opacity: .9; border-color: var(--accent); }

.card {
  background: var(--surface-1); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px;
}

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--text-secondary);
}
.badge.role-success { color: var(--success); border-color: var(--success-border); background: var(--success-bg); }
.badge.role-accent  { color: var(--accent);  border-color: var(--accent-border);  background: var(--accent-bg); }
.badge.role-warning { color: var(--warning); border-color: var(--warning-border); background: var(--warning-bg); }

.role-success { color: var(--success); }
.role-accent  { color: var(--accent); }
.role-warning { color: var(--warning); }

.option {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 15px; margin-bottom: 8px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface-1); cursor: pointer;
  transition: border-color .12s, background .12s;
}
.option:hover { border-color: var(--border-strong); }
.option.selected { border-color: var(--accent); background: var(--accent-bg); }
.option .lvl {
  flex: none; width: 26px; height: 26px; border-radius: 7px;
  display: grid; place-items: center; font-size: 13px; font-weight: 600;
  background: var(--surface-2); color: var(--text-secondary);
  border: 1px solid var(--border);
}
.option.selected .lvl { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.option .lvl-name { font-size: 12px; color: var(--text-muted); }
.option .opt-text { color: var(--text-primary); }

.field {
  width: 100%; padding: 11px 13px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--surface-2);
  color: var(--text-primary); font: inherit;
}
.field::placeholder { color: var(--text-muted); }
.field:focus { outline: none; border-color: var(--accent); }

.progress { height: 4px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--accent); transition: width .25s; }
