/* Redesign layer: horizontal folder tabs, quieter cards, DM Sans. Loaded after app.css and only
   re-skins what app.css defines, so screens that are not rebuilt keep working. The colours are
   the existing tokens on purpose (they get their own pass); only the aliases below are new. */

:root {
  --fg: var(--text);
  --dim: var(--text-dim);
  --line: var(--border);
  --surface: var(--bg-surface);
  --surface-2: var(--bg-raised);
  --good: var(--up);
  --bad: var(--down);
  --font: "DM Sans", var(--sans);
  --accent-soft: color-mix(in srgb, var(--accent) 14%, transparent);
  --accent2: #7aa2ff;
  --sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: "DM Sans", var(--sans);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-card: none;
  --shadow-card-hover: none;
  --sheen: none;
}
:root[data-theme="light"] { --accent2: #2f62d6; }

body {
  background:
    radial-gradient(900px 500px at 85% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
    radial-gradient(700px 400px at 0% 100%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%),
    var(--bg);
  background-attachment: fixed;
  font-family: var(--sans);
}

/* ------------------------------------------------------------ shell */
.shell { display: block; max-width: 1500px; margin: 0 auto; padding: 20px; min-height: 100vh; }
.folder-tabs { display: flex; gap: 4px; overflow-x: auto; padding: 0 8px; margin-bottom: -1px; position: relative; z-index: 1; scrollbar-width: none; }
.folder-tabs::-webkit-scrollbar { display: none; }
.nav-item {
  border: 1px solid var(--line); border-bottom: 0; border-radius: 14px 14px 0 0;
  background: var(--bg); color: var(--dim); padding: 11px 22px; position: relative; top: 3px;
  font-size: 14px; letter-spacing: 0; box-shadow: none;
}
.nav-item:hover { color: var(--fg); background: var(--surface-2); }
.nav-item[aria-selected="true"] {
  color: var(--fg); background: var(--surface); top: 0; padding-bottom: 14px; font-weight: 600;
  box-shadow: none;
}
.nav-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.content-col {
  border: 1px solid var(--line); border-radius: 22px; background: var(--surface);
  padding: 20px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25); min-width: 0;
}
:root[data-theme="light"] .content-col { box-shadow: 0 12px 40px rgba(12, 26, 16, 0.08); }
.folder-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.folder-bar .spacer { flex: 1 1 auto; }
.folder-status { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
main { padding: 0; }
.account-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 0; }
.account-bar select { border-radius: 14px; padding: 9px 14px; background: var(--surface); border: 1px solid var(--line); }
.sidebar-status { display: contents; }
.status-line { border: 0; padding: 0; }

/* -------------------------------------------------------- surfaces */
.panel, .card {
  background: linear-gradient(160deg, var(--surface-2), var(--bg-surface));
  border: 1px solid var(--line); border-radius: 20px; box-shadow: none;
}
.card { padding: 18px; }
.card:hover { transform: none; border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.panel-head { background: none; padding: 16px 18px; }
.panel-head h2 { font-family: var(--font); font-size: 15px; font-weight: 600; letter-spacing: 0; text-transform: none; }
.section-head h2, .panel-head h2 { font-family: var(--font); }
th { font-family: var(--font); font-size: 12px; text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--dim); }
tbody tr:hover { background: var(--accent-soft); }
.btn { border-radius: 12px; font-family: var(--font); box-shadow: none; }
.btn.primary { background: var(--accent); color: #04120f; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover:not(:disabled) { color: #04120f; box-shadow: none; filter: brightness(1.08); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.pill { font-family: var(--font); }
input, select, textarea { border-radius: 12px; }

/* Settings sub-tabs as one segmented control */
.subtabs {
  display: inline-flex; gap: 4px; padding: 4px; border-radius: 16px; margin-bottom: 16px;
  border: 1px solid var(--line); background: var(--bg);
}
.subtab { border: 1px solid transparent; background: transparent; border-radius: 12px; padding: 8px 18px; }
.subtab:hover { border-color: transparent; color: var(--fg); }
.subtab[aria-selected="true"] { background: var(--accent-soft); color: var(--fg); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }

/* Info window on hover (positions, signals, chart points) */
#tip {
  position: fixed; left: 0; top: 0; z-index: 50; pointer-events: none; width: 270px; padding: 14px;
  border-radius: 16px; border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line));
  background: var(--surface-2); box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45); opacity: 0; transition: opacity 0.12s;
}
#tip.on { opacity: 1; }
#tip h4 { margin: 0 0 10px; display: flex; align-items: center; gap: 8px; font-size: 14px; }
#tip dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 14px; font-size: 12px; }
#tip dt { color: var(--dim); }
#tip dd { margin: 0; text-align: right; font: 12px var(--mono); font-variant-numeric: tabular-nums; }
#tip .why { margin-top: 10px; padding: 8px 10px; border-radius: 10px; background: rgba(255, 91, 91, 0.1); color: var(--bad); font-size: 12px; }

@media (max-width: 760px) {
  .shell { padding: 16px; }
  .content-col { padding: 14px; border-radius: 18px; }
  .nav-item { padding: 10px 16px; }
}

[hidden] { display: none !important; }

.account-bar { flex-wrap: nowrap; }
@media (max-width: 760px) { .account-bar { flex-wrap: wrap; } }
.account-bar select { max-width: 100%; }
#account-slot { min-width: 0; max-width: 100%; }
@media (max-width: 760px) { .account-bar { flex-wrap: wrap; } #account-slot { flex: 1 1 100%; } }