/* ─── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:    #0f172a;
  --navy2:   #1e293b;
  --accent:  #2563eb;
  --accent-h:#1d4ed8;
  --bg:      #f1f5f9;
  --surface: #ffffff;
  --border:  #e2e8f0;
  --text:    #1e293b;
  --muted:   #64748b;
  --radius:  10px;
  --shadow:  0 1px 3px rgba(0,0,0,.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* ─── Navigation ────────────────────────────────────────── */
.site-nav {
  background: var(--navy);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.25);
}

.nav-brand {
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -.01em;
  text-decoration: none;
  white-space: nowrap;
}
.nav-brand:hover { text-decoration: none; color: #fff; }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  color: #cbd5e1;
  font-size: 0.88rem;
  padding: 6px 10px;
  border-radius: 6px;
  text-decoration: none;
  transition: color .15s, background .15s;
  white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active { color: #fff; background: rgba(255,255,255,.1); }

/* ─── Page wrapper ──────────────────────────────────────── */
.page {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px;
  width: 100%;
}

/* ─── Footer ────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: #94a3b8;
  font-size: 0.82rem;
  text-align: center;
  padding: 22px 24px;
  line-height: 1.8;
  margin-top: auto;
}
.site-footer a { color: #94a3b8; text-decoration: underline; }
.site-footer a:hover { color: #fff; }

/* ─── Hero (home page) ──────────────────────────────────── */
.hero {
  text-align: center;
  padding: 60px 24px 48px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero p {
  max-width: 580px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 1.05rem;
}

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-h); text-decoration: none; color: #fff; }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: #94a3b8; text-decoration: none; }

/* ─── Feature cards ─────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; color: var(--navy2); }
.card p  { font-size: 0.9rem; color: var(--muted); line-height: 1.55; }

/* ─── Email signup form ─────────────────────────────────── */
.email-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 460px;
  margin: 32px auto;
  box-shadow: var(--shadow);
  text-align: center;
}
.email-form h2 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
.email-form p  { font-size: 0.88rem; color: var(--muted); margin-bottom: 16px; }
.email-form input[type="email"] {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 10px;
  outline: none;
  color: var(--text);
}
.email-form input[type="email"]:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.email-form input[type="submit"] {
  width: 100%;
  padding: 11px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.email-form input[type="submit"]:hover { background: var(--accent-h); }
.email-form .bd-credit { font-size: 0.78rem; color: var(--muted); margin-top: 10px; }
.email-form .bd-credit a { color: var(--muted); text-decoration: underline; }

/* ─── Disclaimer banner ─────────────────────────────────── */
.disclaimer {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 0.87rem;
  color: #78350f;
  margin: 24px 0;
  line-height: 1.55;
}

/* ─── Screener page ─────────────────────────────────────── */
.screener-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.screener-header h1 {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--navy);
}
.screener-meta { color: var(--muted); font-size: 0.88rem; margin-top: 2px; }

.controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  align-items: center;
}
.controls input,
.controls select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  background: var(--surface);
  color: var(--text);
  outline: none;
}
.controls input:focus,
.controls select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }

.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.86rem;
  cursor: pointer;
  color: var(--muted);
  transition: all .15s;
}
.chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: #eff6ff;
  font-weight: 600;
}
.chip:hover { border-color: #94a3b8; color: var(--text); }

/* Table wrapper handles border-radius since border-collapse:collapse strips it */
.table-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.9rem;
}
.data-table th,
.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.data-table th {
  background: #f8fafc;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  cursor: pointer;
  user-select: none;
  color: var(--muted);
}
.data-table th:hover { color: var(--text); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover td { background: #f8fafc; }
.data-table .right { text-align: right; }
.data-table td a { color: var(--accent); font-weight: 600; }
.data-table td a:hover { text-decoration: underline; }

/* ─── Stock page ────────────────────────────────────────── */
.stock-title {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--navy);
  margin: 8px 0 4px;
}
.stock-meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 20px; }

/* ─── Prose pages (About, How It Works, Privacy) ────────── */
.prose { max-width: 680px; }
.prose h1 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--navy);
  margin-bottom: 8px;
}
.prose h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 32px 0 10px;
  color: var(--navy2);
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.prose p  { margin-bottom: 14px; }
.prose ul { margin: 0 0 14px 20px; }
.prose ul li { margin-bottom: 6px; font-size: 0.95rem; }
.prose .lead { font-size: 1.05rem; color: var(--muted); margin-bottom: 24px; line-height: 1.65; }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 640px) {
  .site-nav {
    height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .nav-links { gap: 2px; }
  .nav-links a { font-size: 0.8rem; padding: 5px 7px; }
  .page { padding: 24px 16px; }
  .hero { padding: 36px 16px 32px; }
  .screener-header { flex-direction: column; }
  .data-table { font-size: 0.82rem; }
  .data-table th, .data-table td { padding: 8px 10px; }
  .card-grid { grid-template-columns: 1fr; }
}