:root {
  --ink: #172033;
  --ink-soft: #4b5568;
  --muted: #7c869c;
  --line: #e3e7ef;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --accent: #2f5fdd;
  --accent-ink: #ffffff;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --ok: #1c7a4d;
  --ok-bg: #e8f7ef;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(23, 32, 51, 0.06), 0 8px 24px rgba(23, 32, 51, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef1f8;
    --ink-soft: #c3c9d9;
    --muted: #8b93a7;
    --line: #2a3142;
    --bg: #12151f;
    --surface: #1b1f2c;
    --accent: #6f94ff;
    --accent-ink: #0b0e16;
    --danger: #ff8478;
    --danger-bg: #3a1e1c;
    --ok: #6fd6a3;
    --ok-bg: #163628;
  }
}

* { box-sizing: border-box; }

/* The `hidden` attribute must always win. Several rules below set `display`
   on the same elements via a class selector of equal specificity — without
   this, [hidden] loses the cascade and both auth forms render at once. */
[hidden] { display: none !important; }

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

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.01em; flex-shrink: 0; }
/* min-width: 0 is what lets a flex item's own text-overflow apply instead
   of the item refusing to shrink below its content's natural width — the
   email used to run straight into "Cabinet" at narrow widths without it. */
.account-nav { display: flex; align-items: center; gap: 14px; min-width: 0; }
.account-email {
  color: var(--muted); font-size: 0.9rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0;
}

@media (max-width: 480px) {
  .account-email { max-width: 40vw; }
}
.link-btn {
  background: none; border: none; color: var(--accent);
  cursor: pointer; font-size: 0.9rem; padding: 0;
}
.center-link { align-self: center; }

.site-footer {
  max-width: 960px; margin: 0 auto; padding: 20px 20px 40px;
  display: flex; gap: 16px; justify-content: center;
}
.site-footer a { color: var(--muted); font-size: 0.85rem; text-decoration: none; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }

.verify-banner {
  background: var(--danger-bg); color: var(--danger); border-radius: var(--radius);
  padding: 10px 16px; margin-bottom: 20px; font-size: 0.9rem;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.verify-banner .link-btn { color: var(--danger); text-decoration: underline; }

.app { max-width: 960px; margin: 0 auto; padding: 32px 20px 80px; }

/* ── auth ─────────────────────────────────────────────────────────── */
.auth-view { display: flex; justify-content: center; padding-top: 40px; }
.auth-card {
  width: 100%; max-width: 380px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 24px;
}
.auth-tabs { display: flex; gap: 4px; margin-bottom: 20px; background: var(--bg); border-radius: 8px; padding: 4px; }
.auth-tab {
  flex: 1; padding: 8px; border: none; background: none; border-radius: 6px;
  cursor: pointer; color: var(--muted); font-weight: 600; font-size: 0.9rem;
}
.auth-tab.active { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,0.08); }

.auth-form, .stacked-form { display: flex; flex-direction: column; gap: 14px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 0.88rem; color: var(--ink-soft); font-weight: 600; }
input, textarea, select {
  font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--surface); color: var(--ink);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
small { color: var(--muted); font-weight: 400; }

.primary-btn {
  background: var(--accent); color: var(--accent-ink); border: none;
  padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: 0.95rem;
  cursor: pointer;
}
.primary-btn:hover { filter: brightness(1.05); }
.primary-btn:disabled { opacity: 0.6; cursor: default; }

.secondary-btn {
  background: var(--surface); color: var(--ink); border: 1px solid var(--line);
  padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: 0.95rem; cursor: pointer;
}
.secondary-btn:hover { border-color: var(--accent); color: var(--accent); }

.danger-btn {
  background: var(--danger-bg); color: var(--danger); border: 1px solid transparent;
  padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: 0.9rem; cursor: pointer;
}
.danger-btn:hover { filter: brightness(1.05); }

.checkbox-label { flex-direction: row; align-items: flex-start; gap: 8px; font-weight: 400; color: var(--ink-soft); }
.checkbox-label input { width: auto; margin-top: 3px; }

.form-error { color: var(--danger); font-size: 0.85rem; margin: 0; min-height: 1em; }
.form-note { color: var(--ok); font-size: 0.9rem; }
.form-note.error { color: var(--danger); }

/* ── dashboard ────────────────────────────────────────────────────── */
.tabs { display: flex; gap: 4px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.tab-btn {
  border: none; background: none; padding: 10px 14px; cursor: pointer;
  color: var(--muted); font-weight: 600; font-size: 0.9rem; border-bottom: 2px solid transparent;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

.panel { display: none; }
.panel.active { display: block; }
h1 { font-size: 1.4rem; margin: 0 0 16px; }
h2 { font-size: 1rem; margin: 24px 0 10px; color: var(--ink-soft); }

.stat-row { display: flex; gap: 12px; margin-bottom: 16px; }
.stat-card {
  flex: 1; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; display: flex; flex-direction: column; gap: 4px;
}
.stat-value { font-size: 1.6rem; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 0.85rem; }

.status-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.status-pill {
  font-size: 0.8rem; padding: 5px 10px; border-radius: 999px;
  background: var(--bg); color: var(--muted); border: 1px solid var(--line);
}
.status-pill.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.status-pill.warn { background: var(--danger-bg); color: var(--danger); border-color: transparent; }

.plain-list, .card-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.plain-list li { color: var(--ink-soft); font-size: 0.9rem; }
.plain-list li.muted, .muted { color: var(--muted); }

.card-list li {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px;
}
.card-title { font-weight: 700; margin-bottom: 4px; }
.card-meta { color: var(--muted); font-size: 0.85rem; }
.badge { display: inline-block; font-size: 0.75rem; padding: 2px 8px; border-radius: 999px; font-weight: 600; margin-left: 6px; }
.badge.active { background: var(--ok-bg); color: var(--ok); }
.badge.inactive { background: var(--danger-bg); color: var(--danger); }

.data-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.data-table th, .data-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.data-table th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.02em; }
.data-table tr:last-child td { border-bottom: none; }

.download-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.download-row label { flex: 1; min-width: 200px; }

.detail-list { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0; }
.detail-list dt { color: var(--muted); font-size: 0.85rem; }
.detail-list dd { margin: 0; font-size: 0.9rem; }

.enroll-panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin: 12px 0; display: flex; flex-direction: column; gap: 10px;
}
.mono-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 1rem;
  background: var(--bg); padding: 8px 12px; border-radius: 6px; word-break: break-all;
}
.mono-list {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; list-style: none;
  margin: 0; padding: 10px 12px; background: var(--bg); border-radius: 6px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 6px; font-size: 0.9rem;
}

@media (max-width: 600px) {
  .stat-row { flex-direction: column; }
  .download-row { flex-direction: column; align-items: stretch; }
}