:root {
  --blue: #4a90e2;
  --blue-dark: #357abd;
  --blue-soft: #eaf3ff;
  --gold: #f39c12;
  --ink: #1f2937;
  --muted: #64748b;
  --line: #dbe3ef;
  --panel: #ffffff;
  --shadow: 0 16px 40px rgba(31, 41, 55, 0.12);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.dashboard-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
}

.sidebar {
  background: linear-gradient(180deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.18);
  font-weight: 800;
  letter-spacing: 1px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  opacity: 0.78;
  margin-top: 2px;
}

.side-nav {
  display: grid;
  gap: 8px;
}

.side-link {
  padding: 13px 14px;
  border-radius: 10px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.88);
}

.side-link:hover,
.side-link.is-active {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.side-link.is-muted {
  opacity: 0.58;
  cursor: not-allowed;
}

.plan-card {
  margin-top: auto;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 18px;
}

.plan-card h2,
.plan-card p {
  margin: 0;
}

.plan-card p:last-child {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
}

.main-panel {
  padding: 38px;
  display: grid;
  gap: 24px;
  align-content: start;
}

.topbar,
.metric-card,
.tool-card {
  background: var(--panel);
  border: 1px solid rgba(219, 227, 239, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.topbar {
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1;
}

.lede {
  max-width: 660px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 800;
  border: 1px solid transparent;
}

.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  box-shadow: 0 10px 24px rgba(74, 144, 226, 0.28);
}

.ghost-btn {
  background: #fff;
  color: var(--blue-dark);
  border-color: var(--line);
}

.metrics-grid,
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.metric-card,
.tool-card {
  padding: 22px;
}

.metric-label,
.coming-soon {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--blue-dark);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric-card strong {
  display: block;
  font-size: 1.45rem;
  margin-bottom: 8px;
}

.metric-card p,
.tool-card p {
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 0;
}

.tool-card {
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tool-card h2 {
  margin-bottom: 10px;
}

.tool-card.is-featured {
  grid-column: span 1;
  border-top: 5px solid var(--blue);
}

.coming-soon {
  color: #8a5a00;
  background: rgba(243, 156, 18, 0.14);
  border-radius: 999px;
  padding: 6px 10px;
  width: fit-content;
}

.auth-page {
  min-height: 100vh;
  padding: 24px;
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(100%, 460px);
  display: grid;
  gap: 14px;
  justify-items: start;
  background: var(--panel);
  border: 1px solid rgba(219, 227, 239, 0.85);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 34px;
}

.auth-card h1 {
  margin-bottom: 0;
}

.auth-note {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 980px) {
  .dashboard-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

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

  .topbar-actions {
    justify-content: flex-start;
  }

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

@media (max-width: 640px) {
  .sidebar,
  .main-panel {
    padding: 20px;
  }

  .topbar,
  .metric-card,
  .tool-card {
    padding: 20px;
  }
}