@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --color-background: #f4f6f8;
  --color-surface: #ffffff;
  --color-primary: #111827;
  --color-primary-contrast: #ffffff;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --layout-topbar-height: 80px;
  --layout-footer-height: 72px;
  --layout-spacing: 24px;
}

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

html {
  background-color: var(--color-background);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  padding-top: var(--layout-topbar-height);
  padding-bottom: var(--layout-spacing);
  background-color: var(--color-background);
  color: var(--color-primary);
  font-family: 'Inter', sans-serif;
  line-height: 1.5;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--color-accent-hover);
  text-decoration: none;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  color: var(--color-primary-contrast);
  box-shadow: 0 4px 12px rgba(17, 24, 39, 0.2);
  z-index: 1030;
}

.topbar__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  padding: 0 1.5rem;
}

.topbar__brand {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-contrast);
}

.topbar__brand:hover,
.topbar__brand:focus {
  color: var(--color-primary-contrast);
}

.nav-logo-text {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: inherit;
}

.nav-logo-text:hover,
.nav-logo-text:focus {
  color: inherit;
}

.topbar__nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.topbar__link {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  position: relative;
  padding-bottom: 0.25rem;
}

.topbar__link:hover,
.topbar__link:focus {
  color: #ffffff;
}

.topbar__link--active {
  color: #ffffff;
}

.topbar__link--active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 2px;
  background-color: #ffffff;
  border-radius: 999px;
}

.main-content {
  flex: 1 0 auto;
  width: 100%;
  padding-bottom: var(--layout-spacing);
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  background-color: var(--color-surface);
}

.card .card-body {
  padding: 2.5rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  color: var(--color-primary);
}

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

.table {
  border-color: var(--color-border);
}

.table > :not(caption) > * > * {
  background-color: transparent;
  border-bottom-color: var(--color-border);
}

.table thead {
  background-color: #f9fafb;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
}

.table tbody tr:hover {
  background-color: rgba(37, 99, 235, 0.04);
}

.form-control {
  border-radius: 0.75rem;
  border-color: var(--color-border);
  padding: 0.7rem 1rem;
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.25);
}

.btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  border-radius: 999px;
  padding: 0.75rem 2.5rem;
  font-weight: 600;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 16px 28px rgba(29, 78, 216, 0.32);
}

.alert {
  border-radius: 0.75rem;
  border-width: 0;
  padding: 0.85rem 1.25rem;
  font-weight: 500;
}

.footer {
  margin-top: auto;
  width: 100%;
  min-height: var(--layout-footer-height);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.08);
}

.footer__text {
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

@media (max-width: 576px) {
  body {
    padding-top: calc(var(--layout-topbar-height) - 8px);
  }

  .topbar__content {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
  }

  .card .card-body {
    padding: 1.75rem;
  }
}

.dev-panel__empty {
  border: 1px dashed var(--color-border);
  border-radius: 1rem;
  background-color: rgba(17, 24, 39, 0.02);
  padding: 2.5rem 1.5rem;
  text-align: center;
  color: var(--color-muted);
}

.dev-panel__summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.dev-panel__summary-item {
  padding: 1rem;
  border-radius: 0.75rem;
  background-color: rgba(37, 99, 235, 0.08);
}

.dev-panel__summary-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 0.35rem;
}

.dev-panel__summary-value {
  font-weight: 600;
  color: var(--color-primary);
}

.dev-panel__status-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dev-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.dev-panel__file-info {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.dev-activity {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.dev-activity__item {
  border-left: 4px solid var(--color-border);
  padding-left: 1rem;
}

.dev-activity__item--success {
  border-color: #198754;
}

.dev-activity__item--warning {
  border-color: #ffc107;
}

.dev-activity__item--danger {
  border-color: #dc3545;
}

.dev-activity__title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.dev-activity__timestamp {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.dev-users__table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.dev-users__actions {
  display: flex;
  gap: 0.75rem;
}

.dev-relations__details {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.dev-relations__details-title {
  font-weight: 600;
}

.dev-relations__details-list {
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
}

.dev-relations__details-empty {
  color: var(--color-muted);
}

.dev-relations__row {
  cursor: pointer;
}

.dev-relations__row--active {
  background-color: rgba(37, 99, 235, 0.08);
}

.dev-relations__row--active > * {
  color: var(--color-primary);
  font-weight: 600;
}

@media (max-width: 576px) {
  .dev-panel__summary {
    grid-template-columns: 1fr;
  }
}