:root {
  color-scheme: dark;
  --bg: #071018;
  --panel: rgba(15, 23, 42, 0.88);
  --panel-border: rgba(148, 163, 184, 0.18);
  --panel-strong: rgba(30, 41, 59, 0.96);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #22c55e;
  --accent-strong: #16a34a;
  --danger: #f87171;
  --shadow: 0 28px 80px rgba(2, 6, 23, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(34, 197, 94, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.14), transparent 25%),
    linear-gradient(180deg, #020617 0%, #071018 100%);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #86efac;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
}

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

.auth-shell,
.compat-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem;
}

.auth-card,
.compat-card {
  width: min(1040px, 100%);
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 2rem;
  backdrop-filter: blur(18px);
}

.auth-copy h1,
.compat-card h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.pill,
.user-chip {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(134, 239, 172, 0.22);
  background: rgba(21, 128, 61, 0.18);
  color: #dcfce7;
}

.form-stack {
  display: grid;
  gap: 1rem;
}

.panel {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
}

label {
  font-size: 0.92rem;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 3rem;
  padding: 0 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(2, 6, 23, 0.75);
  color: var(--text);
}

button {
  min-height: 3rem;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #03130b;
  font-weight: 800;
}

button.secondary {
  background: rgba(15, 23, 42, 0.82);
  color: var(--text);
  border: 1px solid var(--panel-border);
}

.alert {
  border-radius: 14px;
  padding: 0.9rem 1rem;
  border: 1px solid;
}

.alert-error {
  background: rgba(127, 29, 29, 0.32);
  border-color: rgba(248, 113, 113, 0.35);
  color: #fecaca;
}

.alert-success {
  background: rgba(20, 83, 45, 0.34);
  border-color: rgba(74, 222, 128, 0.35);
  color: #dcfce7;
}

.app-shell {
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-height: 100vh;
  gap: 1rem;
  padding: 1rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 22px;
}

.topbar h1 {
  margin: 0;
  font-size: 1.7rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tab-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.5rem;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
}

.tab-link {
  padding: 0.9rem 1.05rem;
  border-radius: 14px;
  border: 1px solid transparent;
  color: var(--muted);
  background: transparent;
  transition: 160ms ease;
}

.tab-link:hover,
.tab-link.active {
  color: var(--text);
  background: rgba(30, 41, 59, 0.92);
  border-color: rgba(34, 197, 94, 0.28);
}

.frame-shell {
  min-height: 0;
  background: var(--panel-strong);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  overflow: hidden;
}

.dashboard-frame {
  width: 100%;
  height: calc(100vh - 11.5rem);
  border: none;
  background: #020617;
}

.compat-list {
  margin: 1.25rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.compat-list li + li {
  margin-top: 0.7rem;
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    width: 100%;
    justify-content: space-between;
  }

  .dashboard-frame {
    height: calc(100vh - 15rem);
  }
}