/* Stocks Advisor — single stylesheet, no framework.
   Light and dark both defined; the OS preference decides. */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #eef0f4;
  --border: #d9dde4;
  --text: #171a1f;
  --text-dim: #5c6572;
  --accent: #1f5fa9;
  --accent-text: #ffffff;
  --pos: #11704a;
  --neg: #a62226;
  --warn: #8a5300;
  --radius: 8px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14161a;
    --surface: #1c1f25;
    --surface-2: #23272e;
    --border: #333841;
    --text: #e8eaed;
    --text-dim: #9aa3b0;
    --accent: #5b9be3;
    --accent-text: #0d1014;
    --pos: #4cc38a;
    --neg: #f06a6a;
    --warn: #e0a33a;
  }
}
:root[data-theme="dark"] {
  --bg: #14161a; --surface: #1c1f25; --surface-2: #23272e; --border: #333841;
  --text: #e8eaed; --text-dim: #9aa3b0; --accent: #5b9be3;
  --accent-text: #0d1014; --pos: #4cc38a; --neg: #f06a6a; --warn: #e0a33a;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── layout ─────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px; background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10; flex-wrap: wrap;
}
.brand { font-weight: 650; letter-spacing: -0.01em; white-space: nowrap; }
.brand span { color: var(--text-dim); font-weight: 400; }
.topbar form { margin: 0; display: flex; gap: 8px; align-items: center; }
.topbar .spacer { flex: 1; }

.shell { display: flex; align-items: flex-start; gap: 0; }
.sidebar {
  width: 210px; flex: 0 0 210px; padding: 16px 10px;
  border-right: 1px solid var(--border); min-height: calc(100vh - 54px);
}
.sidebar h6 {
  margin: 14px 8px 6px; font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-dim);
}
.sidebar a {
  display: block; padding: 7px 10px; border-radius: 6px;
  color: var(--text); font-size: 14px;
}
.sidebar a:hover { background: var(--surface-2); text-decoration: none; }
.sidebar a[aria-current="page"] {
  background: var(--accent); color: var(--accent-text); font-weight: 550;
}
main { flex: 1; padding: 20px 22px 60px; min-width: 0; }

@media (max-width: 760px) {
  .shell { flex-direction: column; }
  .sidebar {
    width: auto; flex: none; min-height: 0; border-right: none;
    border-bottom: 1px solid var(--border);
    display: flex; flex-wrap: wrap; gap: 4px; padding: 8px 16px;
  }
  .sidebar h6 { display: none; }
  main { padding: 16px; width: 100%; }
}

/* ── typography ─────────────────────────────────────────── */
h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.015em; }
h2 { font-size: 16px; margin: 26px 0 10px; }
.lede { color: var(--text-dim); margin: 0 0 20px; }

/* ── cards ──────────────────────────────────────────────── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px;
}
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.stat .label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.stat .value { font-size: 23px; font-weight: 600; font-variant-numeric: tabular-nums; margin-top: 3px; }
.stat .sub { font-size: 13px; color: var(--text-dim); margin-top: 2px; }

/* ── tables ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); white-space: nowrap; }
tbody tr:hover { background: var(--surface-2); }
.empty { color: var(--text-dim); padding: 20px 2px; }

/* ── bits ───────────────────────────────────────────────── */
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.pill {
  display: inline-block; padding: 1px 7px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--text-dim); white-space: nowrap;
}
.pill.sell { color: var(--neg); border-color: var(--neg); }
.pill.buy { color: var(--pos); border-color: var(--pos); }
.muted { color: var(--text-dim); }
.mono { font-family: var(--mono); }
code { font-family: var(--mono); font-size: 0.92em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }

/* ── forms ──────────────────────────────────────────────── */
label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=file], select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; background: var(--bg); color: var(--text); font: inherit;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.field { margin-bottom: 14px; }
button, .btn {
  padding: 8px 14px; border-radius: 6px; border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-text);
  font: inherit; font-weight: 550; cursor: pointer;
}
button.secondary, .btn.secondary {
  background: transparent; color: var(--text); border-color: var(--border);
}
button:hover, .btn:hover { filter: brightness(1.08); text-decoration: none; }
.topbar select { width: auto; min-width: 170px; }

/* ── flashes ────────────────────────────────────────────── */
.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 12px; border: 1px solid; }
.flash.info { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.flash.success { border-color: var(--pos); background: color-mix(in srgb, var(--pos) 10%, transparent); }
.flash.warning { border-color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.flash.error { border-color: var(--neg); background: color-mix(in srgb, var(--neg) 10%, transparent); }

/* ── auth ───────────────────────────────────────────────── */
.auth { max-width: 390px; margin: 7vh auto; padding: 0 16px; }
.auth .card { padding: 22px; }
.auth h1 { font-size: 19px; margin-bottom: 14px; }

/* ── findings ───────────────────────────────────────────── */
.finding { border-left: 3px solid var(--border); padding: 10px 0 10px 13px; margin-bottom: 14px; }
.finding.high { border-left-color: var(--neg); }
.finding.medium { border-left-color: var(--warn); }
.finding.low, .finding.info { border-left-color: var(--accent); }
.finding h3 { font-size: 14px; margin: 0 0 6px; }
.finding dl { margin: 0; font-size: 13.5px; }
.finding dt { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); margin-top: 7px; }
.finding dd { margin: 2px 0 0; }

.codes { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin: 14px 0; }
.codes li { list-style: none; font-family: var(--mono); font-size: 15px; letter-spacing: 0.06em; background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 8px; text-align: center; }
.qr { display: block; margin: 14px auto; width: 190px; height: 190px; image-rendering: pixelated; background: #fff; padding: 8px; border-radius: 6px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
  border: 0;
}