:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f1f5fc;
  --line: #d7e2f2;
  --line-strong: #b8cae9;
  --text-main: #102240;
  --text-soft: #51648c;
  --brand: #245fd1;
  --ok: #1f9d6d;
  --warn: #b57800;
  --radius-xl: 20px;
  --radius-md: 12px;
  --container: min(1080px, calc(100% - 2rem));
  --body: "Inter", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", Menlo, monospace;
  --shadow: 0 12px 30px rgba(24, 52, 108, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--body);
  color: var(--text-main);
  background: var(--bg);
}

a { color: inherit; text-decoration: none; }

.page-shell {
  width: var(--container);
  margin: 1.8rem auto 2.2rem;
}

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: #17376d;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.64rem;
  display: grid;
  place-items: center;
  color: #fff;
  background: #1e4fc0;
}

.nav-links {
  display: inline-flex;
  gap: 0.55rem;
}

.btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.62rem 0.96rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--body);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  text-transform: none;
  font-weight: 700;
}

.btn-ghost {
  border-color: var(--line-strong);
  background: #fff;
  color: #35598e;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.auth-layout {
  margin-top: 1.8rem;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 0.85rem;
}

.panel,
.form-panel,
.value-block,
.metrics-grid > div {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: #fff;
  box-shadow: var(--shadow);
}

.panel,
.form-panel {
  padding: 1.25rem;
}

.badge {
  display: inline-block;
  margin-bottom: 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #42649c;
  padding: 0.3rem 0.56rem;
}

.panel h1 {
  margin: 0;
  font-size: clamp(1.72rem, 3vw, 2.9rem);
  line-height: 1.02;
  color: #0f2b5a;
}

.panel p {
  color: var(--text-soft);
  line-height: 1.66;
}

.info-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.info-list li {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0.7rem;
  color: #405e92;
  background: var(--surface-2);
}

.value-block {
  margin-top: 0.75rem;
  padding: 0.9rem;
}

.value-block h3 {
  margin: 0;
  color: #1a4078;
}

.value-block ul {
  margin: 0.62rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.32rem;
  color: var(--text-soft);
}

.metrics-grid {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.metrics-grid > div {
  padding: 0.65rem;
  border-radius: var(--radius-md);
  background: #f8fbff;
}

.metrics-grid small {
  display: block;
  color: #6a7ea4;
}

.metrics-grid strong {
  display: block;
  margin-top: 0.24rem;
  color: #214983;
  font-size: 1.15rem;
}

.form-panel h2 {
  margin: 0;
  font-size: 1.35rem;
  color: #133568;
}

.form-panel p {
  margin: 0.35rem 0 0;
  color: var(--text-soft);
}

.form-grid {
  margin-top: 0.95rem;
  display: grid;
  gap: 0.78rem;
}

label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.82rem;
  color: #486293;
}

input,
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  padding: 0.72rem 0.75rem;
  background: #fff;
  color: var(--text-main);
  font: inherit;
}

input:focus,
select:focus {
  outline: 2px solid #d8e6ff;
  border-color: #86a8e2;
}

.form-actions {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.52rem;
}

.feedback {
  min-height: 1.2rem;
  margin-top: 0.76rem;
  font-size: 0.83rem;
  color: var(--warn);
}

.feedback.ok {
  color: var(--ok);
}

.small-link {
  margin-top: 0.78rem;
  color: #5b729d;
  font-size: 0.86rem;
}

@media (max-width: 960px) {
  .auth-layout { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .top-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }
}