:root {
  --bg: #f5f8fd;
  --surface: #ffffff;
  --ink: #12253f;
  --muted: #607089;
  --line: #dbe4f2;
  --brand: #1e4ed9;
  --brand-dark: #153ca8;
  --accent: #0f9488;
  --warn: #b45309;
  --danger: #b91c1c;
  --success: #166534;
  --shadow: 0 18px 40px rgba(14, 35, 80, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: linear-gradient(180deg, #f9fbff 0%, #f2f6fd 100%);
  color: var(--ink);
  font-family: Manrope, sans-serif;
}

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

.wrap {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(249, 251, 255, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.logo {
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo em {
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-weight: 400;
}

.nav-links {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.session-meta {
  color: var(--muted);
  font-size: 14px;
}

.main-shell {
  padding: 32px 20px 56px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 22px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  margin-bottom: 20px;
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.03;
  letter-spacing: -0.03em;
  margin: 10px 0 10px;
}

h2 {
  font-size: 26px;
  letter-spacing: -0.02em;
  margin: 10px 0;
}

.sub,
.muted {
  color: var(--muted);
}

.hero-side {
  display: grid;
  gap: 12px;
}

.mini-stat,
.summary-card,
.list-card,
.message {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.mini-stat {
  padding: 14px;
}

.mini-stat strong {
  display: block;
  margin-bottom: 6px;
}

.mini-stat span {
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-grid label {
  display: grid;
  gap: 8px;
}

.form-grid .full {
  grid-column: 1 / -1;
}

.form-grid span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 700;
}

input,
select,
textarea,
.btn {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 13px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

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

.btn.primary:hover {
  background: var(--brand-dark);
}

.btn.ghost:hover {
  border-color: var(--brand);
}

.message {
  padding: 12px 14px;
  margin-top: 14px;
  color: var(--muted);
}

.message.success {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: var(--success);
}

.message.warn {
  border-color: #fde68a;
  background: #fffbeb;
  color: var(--warn);
}

.message.error {
  border-color: #fecaca;
  background: #fef2f2;
  color: var(--danger);
}

.summary-card {
  padding: 14px;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.actions-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 18px;
}

.list-stack {
  display: grid;
  gap: 12px;
}

.list-card {
  padding: 16px;
}

.list-card h3 {
  margin-bottom: 6px;
  font-size: 18px;
}

.list-card.empty {
  color: var(--muted);
}

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.pill {
  background: #edf3ff;
  color: #1d4188;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 12px;
}

.stack-list {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 900px) {
  .hero,
  .grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .topnav {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-shell {
    padding-top: 20px;
  }
}