:root {
  --blue-950: #0f172a;
  --blue-900: #142b52;
  --blue-800: #1d4ed8;
  --blue-700: #2563eb;
  --blue-500: #60a5fa;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --white: #ffffff;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --line: rgba(37, 99, 235, 0.12);
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI Variable", "Aptos", "Helvetica Neue", sans-serif;
  color: var(--blue-950);
  background:
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.18), transparent 24%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 58%, #eef5ff 100%);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(37, 99, 235, 0.08);
  backdrop-filter: blur(18px);
}

.topbar__row {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(0, 1.35fr);
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 18px 0;
}

.topbar__identity {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand__logo {
  width: 128px;
  height: 40px;
  display: grid;
  place-items: center;
  padding: 4px 6px;
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
}

.brand__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand__name {
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

.brand__tag {
  color: var(--slate-500);
  font-size: 0.92rem;
  line-height: 1.25;
}

.topbar__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-width: 0;
}

.version-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 999px;
  color: var(--blue-900);
  background: rgba(239, 246, 255, 0.9);
  box-shadow: none;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
  flex: 0 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  min-width: 0;
}

.user-greeting {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 40px;
  padding: 10px 16px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 999px;
  color: var(--blue-950);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
  font-size: 0.94rem;
  white-space: nowrap;
}

.user-greeting strong {
  font-weight: 800;
}

.nav button,
.nav a,
.ghost,
.primary,
.secondary {
  border: 0;
  border-radius: 999px;
  padding: 11px 18px;
  text-decoration: none;
}

.nav button,
.nav a,
.ghost {
  background: rgba(37, 99, 235, 0.06);
  color: var(--blue-900);
}

.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  box-shadow: var(--shadow);
}

.secondary {
  color: var(--blue-900);
  background: linear-gradient(135deg, var(--blue-100), #f8fbff);
  border: 1px solid rgba(37, 99, 235, 0.12);
}

.badge,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
}

.badge {
  padding: 8px 12px;
  color: var(--blue-800);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.1);
  font-size: 0.84rem;
}

.badge--version {
  color: var(--blue-900);
  background: rgba(239, 246, 255, 0.9);
  border-color: rgba(37, 99, 235, 0.14);
  font-weight: 700;
}

.chip {
  padding: 7px 11px;
  color: var(--blue-900);
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.05);
  font-size: 0.85rem;
}