/* 股票投資組合分析網站 — 沿用 jackyverse.com (TextToolkit) 的設計語言 */
:root {
  --accent: #4f46e5;
  --accent-dark: #3730a3;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --text: #1e2130;
  --text-muted: #5b6072;
  --border: #e3e5ec;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 20, 40, .06), 0 1px 2px rgba(20, 20, 40, .08);
  --maxw: 1080px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
body { line-height: 1.6; font-size: 16px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

/* Header */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .bar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar .logo { display: flex; align-items: center; }
.topbar .logo img { height: 32px; display: block; }
.topbar nav {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}
.topbar nav a { color: var(--text-muted); font-weight: 600; font-size: 14px; }
.topbar nav a:hover { color: var(--accent); text-decoration: none; }
.topbar .user-info { color: var(--text-muted); font-size: 14px; }

/* Main content */
main { max-width: var(--maxw); margin: 32px auto; padding: 0 20px; }
h1 { font-size: clamp(22px, 3.4vw, 30px); font-weight: 800; margin: 0 0 20px; }
h2 { font-size: 18px; font-weight: 800; margin: 32px 0 12px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin: 0 0 20px;
}

.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { border-bottom: 1px solid var(--border); padding: 10px 12px; text-align: left; font-size: 14px; white-space: nowrap; }
th { background: #fbfbfd; color: var(--text-muted); font-weight: 700; text-transform: uppercase; font-size: 12px; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }

form { margin: 0; }
label { display: block; margin: 10px 0; font-size: 14px; font-weight: 600; color: var(--text-muted); }
input, select {
  display: block;
  width: 100%;
  max-width: 320px;
  margin-top: 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
  background: #fbfbfd;
  color: var(--text);
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; background: #fff; }

button {
  appearance: none;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  margin-top: 10px;
}
button:hover { background: var(--accent-dark); }
button.btn-sm { padding: 6px 12px; font-size: 13px; margin-top: 0; }
button.btn-ghost { background: #fff; color: var(--text-muted); border: 1px solid var(--border); }
button.btn-ghost:hover { background: #fef2f2; color: #B42318; border-color: #fecaca; }

.stat-row { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 20px; min-width: 140px; }
.stat .num { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat .label { font-size: 13px; color: var(--text-muted); }

.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge-ok { background: #ECFDF3; color: #067647; }
.badge-fail { background: #FEF2F2; color: #B42318; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 4px 20px; }
.form-grid label { margin: 10px 0; }
.form-grid input, .form-grid select { max-width: 100%; }

.error { background: #FEF2F2; color: #B42318; padding: 12px 14px; border-radius: 8px; margin: 0 0 16px; font-size: 14px; }
.success { background: #ECFDF3; color: #067647; padding: 12px 14px; border-radius: 8px; margin: 0 0 16px; font-size: 14px; }

pre { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; overflow-x: auto; white-space: pre-wrap; font-size: 13px; box-shadow: var(--shadow); }

ul { padding-left: 20px; }

.filters { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.filters label { margin: 0; }
.filters input, .filters select { max-width: 220px; }

.link-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; list-style: none; margin: 0; padding: 0; }
.link-grid a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  color: var(--text);
  font-weight: 700;
  transition: transform .12s ease, box-shadow .12s ease;
}
.link-grid a:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(20,20,40,.10); text-decoration: none; }
.link-grid .icon { font-size: 24px; display: block; margin-bottom: 8px; }
.link-grid h3 { margin: 0 0 4px; font-size: 16px; color: var(--text); }
.link-grid p { margin: 0; font-size: 13px; color: var(--text-muted); font-weight: 400; }

.page-intro { color: var(--text-muted); margin: -12px 0 24px; font-size: 15px; }

@media (max-width: 600px) {
  main { margin: 16px auto; }
  .card { padding: 16px; }
  input, select { max-width: 100%; }
}