:root {
  --mono-bg: #f8fafc;
  --mono-bg-elevated: #ffffff;
  --mono-surface: #ffffff;
  --mono-surface-muted: #f1f5f9;
  --mono-text: #0f172a;
  --mono-text-muted: #64748b;
  --mono-border: #e2e8f0;
  --mono-primary: #4f46e5;
  --mono-primary-strong: #4338ca;
  --mono-success: #16a34a;
  --mono-warning: #f59e0b;
  --mono-danger: #ef4444;
  --mono-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
  --mono-radius-lg: 16px;
  --mono-radius-md: 12px;
}

[data-theme="dark"] {
  --mono-bg: #0f172a;
  --mono-bg-elevated: #0b1220;
  --mono-surface: #111827;
  --mono-surface-muted: #1f2937;
  --mono-text: #e2e8f0;
  --mono-text-muted: #94a3b8;
  --mono-border: #334155;
  --mono-primary: #818cf8;
  --mono-primary-strong: #a5b4fc;
  --mono-success: #22c55e;
  --mono-warning: #f59e0b;
  --mono-danger: #f87171;
  --mono-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.45), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

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

body.auth-shell {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--mono-bg);
  color: var(--mono-text);
  padding: 1rem;
  padding-top: 6rem;
}

.app-nav {
  border: 1px solid var(--mono-border);
  border-radius: var(--mono-radius-lg);
  background: color-mix(in srgb, var(--mono-bg-elevated) 96%, transparent);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  margin: 0 auto 1.5rem;
  max-width: 1180px;
  position: fixed;
  top: 0.75rem;
  left: 50%;
  width: min(1180px, calc(100vw - 2rem));
  transform: translateX(-50%);
  z-index: 1200;
  backdrop-filter: blur(14px);
}

.app-nav .navbar-brand,
.app-nav .nav-link {
  color: var(--mono-text) !important;
}

.app-nav .navbar-brand,
.app-nav .nav-link,
.app-nav .navbar-text {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.app-nav .navbar-nav {
  gap: 0.45rem;
}

.app-nav .navbar-brand {
  font-weight: 800;
}

.app-nav .nav-link {
  border-radius: 12px;
  font-weight: 700;
  padding: 0.5rem 0.85rem !important;
  border: 1px solid var(--mono-border);
  background: var(--mono-surface);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-nav .nav-link:hover,
.app-nav .nav-link:focus-visible {
  background: color-mix(in srgb, var(--mono-primary) 8%, var(--mono-surface));
  color: var(--mono-primary) !important;
  border-color: color-mix(in srgb, var(--mono-primary) 45%, var(--mono-border));
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

.nav-icon-chip {
  width: 1.1rem;
  height: 1.1rem;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 0;
  box-shadow: none;
  font-size: 1.1rem;
  line-height: 1;
  margin: 0;
  color: currentColor;
}

.auth-container {
  max-width: 1060px;
}

.app-card {
  border: 1px solid var(--mono-border);
  border-radius: var(--mono-radius-lg);
  background: var(--mono-surface);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.app-card .card-body {
  padding: clamp(1.25rem, 2.4vw, 2rem) !important;
}

.auth-panel {
  max-width: 520px;
  margin: 0 auto;
}

h2.card-title {
  color: var(--mono-text) !important;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.form-label {
  color: var(--mono-text-muted);
  font-weight: 600;
}

.form-control,
.input-group-text {
  border-color: var(--mono-border);
  background: var(--mono-surface);
  color: var(--mono-text);
}

.form-control:focus {
  border-color: var(--mono-primary);
  box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--mono-primary) 18%, transparent);
  background: var(--mono-surface);
  color: var(--mono-text);
}

.btn-primary {
  background: var(--mono-primary);
  border-color: var(--mono-primary);
  border-radius: 12px;
  font-weight: 700;
  box-shadow: 0 6px 14px color-mix(in srgb, var(--mono-primary) 24%, transparent);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--mono-primary-strong);
  border-color: var(--mono-primary-strong);
  transform: translateY(-1px);
  box-shadow: 0 10px 20px color-mix(in srgb, var(--mono-primary) 30%, transparent);
}

.btn-success {
  background: var(--mono-success);
  border-color: var(--mono-success);
  border-radius: 12px;
  font-weight: 700;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-success:hover,
.btn-success:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px color-mix(in srgb, var(--mono-success) 30%, transparent);
}

.text-muted {
  color: var(--mono-text-muted) !important;
}

.alert {
  border-radius: var(--mono-radius-md);
  border-width: 1px;
}

.hub-grid .card-service {
  border: 1px solid var(--mono-border);
  border-radius: 16px;
  background: var(--mono-surface);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  overflow: hidden;
  position: relative;
}

.hub-grid .card-service::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: 18px 0 0 18px;
  background: var(--mono-primary);
}

.hub-grid .card-service:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--mono-primary) 38%, var(--mono-border));
  box-shadow: 0 12px 20px rgba(15, 23, 42, 0.12);
  background: color-mix(in srgb, var(--mono-primary) 4%, var(--mono-surface));
}

.icon-box {
  width: 3.3rem;
  height: 3.3rem;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid color-mix(in srgb, var(--mono-primary) 24%, var(--mono-border));
  background: color-mix(in srgb, var(--mono-primary) 8%, var(--mono-surface));
  color: var(--mono-primary);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.service-danger .icon-box {
  background: color-mix(in srgb, #ef4444 14%, var(--mono-surface));
  border-color: color-mix(in srgb, #ef4444 28%, var(--mono-border));
  color: #ef4444;
}

.service-primary .icon-box {
  background: color-mix(in srgb, var(--mono-primary) 8%, var(--mono-surface));
  border-color: color-mix(in srgb, var(--mono-primary) 30%, var(--mono-border));
  color: var(--mono-primary);
}

.service-warning .icon-box {
  background: color-mix(in srgb, #f59e0b 14%, var(--mono-surface));
  border-color: color-mix(in srgb, #f59e0b 28%, var(--mono-border));
  color: #d97706;
}

.service-danger.card-service::before {
  background: #ef4444;
}

.service-primary.card-service::before {
  background: var(--mono-primary);
}

.service-warning.card-service::before {
  background: #f59e0b;
}

.hub-stage {
  padding: 0.35rem 0;
}

.hub-title {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  font-weight: 900;
  color: var(--mono-text);
}

.service-title {
  font-size: clamp(1.25rem, 2.2vw, 1.85rem);
}

.service-description {
  font-size: clamp(0.92rem, 1.4vw, 1.05rem);
}

.service-arrow {
  color: color-mix(in srgb, var(--mono-primary) 72%, var(--mono-text-muted));
  opacity: 0.72;
  transition: transform 180ms ease, opacity 180ms ease;
  font-size: 1.35rem;
}

.hub-grid .card-service:hover .service-arrow {
  transform: translateX(4px);
  opacity: 1;
}

.app-nav .navbar-text {
  padding: 0.45rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--mono-border);
  background: var(--mono-surface);
  color: var(--mono-text-muted) !important;
  font-weight: 600;
}

.theme-toggle-button {
  border: 1px solid var(--mono-border);
  border-radius: 12px;
  background: var(--mono-surface);
  color: var(--mono-text);
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle-button:hover,
.theme-toggle-button:focus-visible {
  color: var(--mono-primary);
  background: color-mix(in srgb, var(--mono-primary) 8%, var(--mono-surface));
  border-color: color-mix(in srgb, var(--mono-primary) 45%, var(--mono-border));
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .app-nav .navbar-nav {
    gap: 0.3rem;
  }

  body.auth-shell {
    padding: 0.6rem;
    padding-top: 5.2rem;
  }

  .app-nav {
    border-radius: 14px;
    top: 0.4rem;
    width: calc(100vw - 1.2rem);
  }

  .auth-container {
    padding-left: 0.35rem;
    padding-right: 0.35rem;
  }

  .hub-title {
    font-size: clamp(1.65rem, 8vw, 2.15rem);
  }

  .service-description {
    line-height: 1.45;
  }

  .service-arrow {
    display: none;
  }
}





/* Lucide icon sizing */
.nav-icon-chip svg {
  width: 1.1rem;
  height: 1.1rem;
  stroke-width: 2;
}

.app-nav .nav-link {
  border-radius: 10px;
}