:root {
  color-scheme: dark;
  --bg: #071421;
  --bg-soft: rgba(13, 25, 40, 0.86);
  --panel: rgba(18, 31, 48, 0.92);
  --panel-strong: rgba(22, 37, 58, 0.96);
  --border: rgba(118, 160, 214, 0.24);
  --border-strong: rgba(90, 171, 255, 0.58);
  --text: #eff5ff;
  --muted: #94abc4;
  --accent: #2d8cff;
  --accent-strong: #1f67cf;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.44);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at 10% 0%, rgba(41, 117, 213, 0.25), transparent 38%),
    radial-gradient(circle at 90% 100%, rgba(32, 92, 160, 0.24), transparent 42%),
    linear-gradient(180deg, #0b1b2d 0%, var(--bg) 100%);
  color: var(--text);
}

body {
  min-height: 100vh;
}

button,
input,
a {
  font: inherit;
}

.base-shell {
  width: min(1120px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 40px 0 56px;
  display: grid;
  gap: 24px;
  align-content: center;
}

.base-hero,
.base-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  box-shadow: var(--shadow);
}

.base-hero {
  border-radius: var(--radius-xl);
  padding: 40px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.base-hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.lead {
  max-width: 60ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.base-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.base-actions a,
.base-card a {
  text-decoration: none;
}

.primary-link,
.secondary-link,
.base-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.primary-link {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #f7fbff;
  font-weight: 700;
}

.secondary-link,
.base-card a {
  border-color: var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.primary-link:hover,
.secondary-link:hover,
.base-card a:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

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

.base-card {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.base-card h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.base-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.55;
}

.base-footer {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.base-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .base-shell {
    width: min(100% - 24px, 1120px);
    padding: 24px 0 32px;
  }

  .base-hero {
    padding: 28px 22px;
  }

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

@media (prefers-reduced-motion: no-preference) {
  .base-hero,
  .base-card {
    animation: rise-in 540ms ease both;
  }

  .base-card:nth-child(2) {
    animation-delay: 90ms;
  }

  .base-card:nth-child(3) {
    animation-delay: 180ms;
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}
  gap: 14px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f2f5f8, #c5d3e4);
  color: #173557;
  font-weight: 700;
}

.user-copy {
  display: grid;
  gap: 2px;
}

.welcome-text {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.logout-button {
  padding: 12px 14px;
  border-radius: 12px;
  background: linear-gradient(180deg, #2f8fff, #1d5bc7);
  color: white;
  font-weight: 700;
}

.dashboard-content {
  display: grid;
  grid-template-columns: 74px 1fr;
  min-height: 0;
  flex: 1;
}

.sidebar {
  border-right: 1px solid var(--border-soft);
  background: rgba(20, 31, 46, 0.9);
  padding: 22px 10px;
}

.sidebar-nav {
  display: grid;
  gap: 10px;
}

.nav-item {
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 14px 8px;
  border-radius: 14px;
  background: transparent;
  color: #9ab1c9;
  text-align: center;
  font-size: 0.76rem;
}

.nav-item-active {
  background: rgba(34, 135, 255, 0.12);
  color: #ecf6ff;
}

.nav-bullet {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(180deg, #44a2ff, #1c5ec3);
  box-shadow: 0 0 12px rgba(34, 135, 255, 0.45);
}

.summary-section {
  padding: 26px 20px 22px;
}

.summary-header h2 {
  margin: 0 0 8px;
  font-size: 2rem;
}

.summary-header p {
  margin: 0;
  color: var(--text-muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.metric-card {
  min-height: 184px;
  padding: 18px 20px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(27, 40, 58, 0.98) 0%, rgba(22, 34, 50, 0.95) 100%);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.metric-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 12px;
  background: linear-gradient(90deg, #1e5ac0, #3aa8ff);
}

.metric-card-success::after {
  background: linear-gradient(90deg, #2e8b4a, #63dd8d);
}

.metric-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(34, 135, 255, 0.14);
  color: #72b9ff;
  font-size: 0.88rem;
  font-weight: 700;
}

.metric-card h3 {
  margin: 22px 0 18px;
  font-size: 1.05rem;
  line-height: 1.3;
  font-weight: 500;
}

.metric-value {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.2;
}

.metric-card-success .metric-value {
  color: var(--success);
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: rgba(24, 34, 49, 0.96);
  border-top: 1px solid var(--border-soft);
  color: #d1e2f4;
}

.connection-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--success);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 12px rgba(89, 217, 124, 0.55);
}

@media (max-width: 1180px) {
  .screen-grid {
    grid-template-columns: 1fr;
  }

  .login-page {
    justify-content: flex-start;
  }
}

@media (max-width: 860px) {
  .dashboard-content {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border-soft);
  }

  .sidebar-nav {
    grid-template-columns: repeat(3, 1fr);
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(180px, 1fr));
  }
}

@media (max-width: 640px) {
  .screen-grid {
    padding: 14px;
  }

  .login-card {
    padding: 26px 20px 22px;
  }

  .topbar,
  .user-panel,
  .status-bar {
    flex-wrap: wrap;
  }

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