:root {
  --ink: #1a2233;
  --muted: #5b6472;
  --border: #dde1e7;
  --bg-soft: #f6f7f9;
  --brand: #1f6f4f;
  --brand-dark: #16523a;
  --danger: #b3261e;
  --danger-bg: #fdecea;
  --ok: #1f6f4f;
  --ok-bg: #eaf5ef;
  --radius: 8px;
}

* { box-sizing: border-box; }

/* Belt-and-braces: several classes below (.info-banner, .paywall-banner,
   etc) declare `display: flex` unconditionally, which - being an author
   stylesheet rule - overrides the browser's own low-priority
   `[hidden] { display: none }` default. Without this, elements using the
   `hidden` attribute alongside one of those classes render as an empty
   colored bar instead of actually being hidden (this is exactly what was
   happening with the empty #auth-info banner on signup.html). */
[hidden] { display: none !important; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  margin: 0;
  background: #fff;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; font-size: 1.1rem; }
.site-header nav a {
  margin-left: 18px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-header nav a.active, .site-header nav a:hover { color: var(--ink); }

h1 { margin-top: 28px; margin-bottom: 4px; }
h2 { margin-top: 0; }
.subtitle { color: var(--muted); margin-top: 0; }

.steps {
  display: flex;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 20px 0 24px;
}
.steps li {
  flex: 1;
  padding: 8px 12px;
  background: var(--bg-soft);
  color: var(--muted);
  border-radius: var(--radius);
  font-size: 0.9rem;
  text-align: center;
}
.steps li.step-active { background: var(--brand); color: #fff; }

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 28px;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone.dragover { border-color: var(--brand); background: var(--ok-bg); }
.dropzone .hint { color: var(--muted); font-size: 0.85rem; }
.selected-file { font-weight: 600; margin-top: 8px; }

.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.95rem;
}
.button:hover { background: var(--bg-soft); }
.button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.button.primary:hover { background: var(--brand-dark); }
.button:disabled { opacity: 0.5; cursor: not-allowed; }

#upload-btn { margin-top: 20px; }
.loading { margin-top: 14px; color: var(--muted); }

.error-banner {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #f3c6c3;
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 16px 0;
  font-size: 0.9rem;
}
.info-banner {
  background: var(--ok-bg);
  color: var(--ok);
  border: 1px solid #cfe8da;
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 18px;
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.info-banner button { flex-shrink: 0; }

.field-group { margin-bottom: 22px; }
.field-group h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.field-row {
  display: grid;
  grid-template-columns: 220px 110px 1fr;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #f0f1f3;
}
.field-row:last-child { border-bottom: none; }

.field-label { display: flex; flex-direction: column; }
.field-label .name { font-weight: 600; font-size: 0.92rem; }
.field-label .name .required { color: var(--danger); margin-left: 3px; }
.field-label .hint { color: var(--muted); font-size: 0.78rem; }

.mode-toggle select {
  width: 100%;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.field-input select,
.field-input input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
}
.field-input .unmapped-note { color: var(--muted); font-size: 0.85rem; }
.field-row.has-error .field-input select,
.field-row.has-error .field-input input { border-color: var(--danger); }

.unmapped-details { margin: 20px 0; color: var(--muted); font-size: 0.9rem; }
.unmapped-details ul { margin: 8px 0 0; padding-left: 20px; }

.preview-wrap { margin-top: 24px; }
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
th, td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}
thead th { background: var(--bg-soft); position: sticky; top: 0; }

.actions { display: flex; gap: 12px; margin-top: 24px; }
.save-status { margin-top: 10px; font-size: 0.88rem; color: var(--muted); }

.results-summary {
  display: flex;
  gap: 16px;
  margin-bottom: 18px;
}
.summary-pill {
  padding: 10px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
}
.summary-pill.total { background: var(--bg-soft); color: var(--ink); }
.summary-pill.valid { background: var(--ok-bg); color: var(--ok); }
.summary-pill.invalid { background: var(--danger-bg); color: var(--danger); }

.result-row {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 0.88rem;
}
.result-row.invalid { border-color: #f3c6c3; background: var(--danger-bg); }
.result-row.valid { border-color: #cfe8da; background: var(--ok-bg); }
.result-row .row-title { font-weight: 600; }
.result-row ul { margin: 6px 0 0; padding-left: 18px; }

/* --- Dashboard --- */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 8px;
}
.summary-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.summary-card.success { background: var(--ok-bg); border-color: #cfe8da; }
.summary-card.fail { background: var(--danger-bg); border-color: #f3c6c3; }
.summary-card-value { font-size: 1.6rem; font-weight: 700; }
.summary-card-label { color: var(--muted); font-size: 0.82rem; margin-top: 4px; }

.dashboard-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-buttons { display: flex; gap: 8px; }
.filter-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; }

#submissions-table { width: 100%; }
#submissions-table td, #submissions-table th { white-space: normal; }
.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.status-badge.success { background: var(--ok-bg); color: var(--ok); }
.status-badge.failed { background: var(--danger-bg); color: var(--danger); }

.pagination {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

/* --- Settings page --- */
.field-row.settings-row {
  grid-template-columns: 260px 1fr;
}

/* --- Account slot (nav) --- */
.account-slot {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 18px;
}
.account-email { color: var(--muted); font-size: 0.85rem; }
.nav-cta { margin-left: 18px; padding: 8px 14px; }

/* --- Auth pages (login/signup) --- */
.auth-page {
  display: flex;
  justify-content: center;
  padding-top: 40px;
}
.auth-card { width: 100%; max-width: 400px; }
.auth-form { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
}
.auth-form input {
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 400;
}
.auth-form .button { margin-top: 6px; }
.auth-switch { margin-top: 18px; text-align: center; }

/* --- Landing page --- */
.hero {
  background: var(--bg-soft);
  padding: 72px 0;
  text-align: center;
}
.hero h1 {
  margin: 0 auto 18px;
  max-width: 760px;
  font-size: 2.4rem;
  line-height: 1.15;
}
.hero-subtitle {
  max-width: 640px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 1.05rem;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.button.large { padding: 14px 24px; font-size: 1rem; }

.section-title { text-align: center; margin: 56px 0 28px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 20px;
}
.feature-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.feature-card h3 { margin-top: 6px; margin-bottom: 8px; font-size: 1.05rem; }
.feature-card p { color: var(--muted); font-size: 0.92rem; margin: 0; }
.feature-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}

.cta-band {
  background: var(--brand);
  color: #fff;
  margin-top: 40px;
  padding: 56px 0;
}
.cta-band-inner { text-align: center; }
.cta-band h2 { margin-top: 0; margin-bottom: 22px; }
.cta-band .button.primary {
  background: #fff;
  color: var(--brand-dark);
  border-color: #fff;
}
.cta-band .button.primary:hover { background: var(--bg-soft); }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

/* --- Paywall banner (trial ended / no active subscription) --- */
.paywall-banner {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #f3c6c3;
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 16px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.paywall-banner .button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  flex-shrink: 0;
}