:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef3f8;
  --text: #18212b;
  --muted: #617182;
  --border: #d7e0ea;
  --primary: #0b63ce;
  --primary-hover: #094fa4;
  --success: #198754;
  --danger: #c93c3c;
  --warning: #d48a00;
  --shadow: 0 10px 30px rgba(18, 37, 63, 0.08);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;

  --container: 1100px;

  --font: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: linear-gradient(180deg, #f6f9fc 0%, #edf3f8 100%);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 24px, var(--container));
  margin-inline: auto;
}

.site-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(244, 247, 251, 0.88);
  border-bottom: 1px solid rgba(215, 224, 234, 0.85);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 68px;
  padding: 0 var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-badge {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--primary);
  color: white;
  font-size: 14px;
  font-weight: 800;
  box-shadow: var(--shadow);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-title {
  font-size: 16px;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--text);
  background: transparent;
  text-decoration: none;
  font-weight: 600;
}

.top-nav a:hover,
.top-nav a.is-active {
  background: var(--surface);
  box-shadow: var(--shadow);
}

.page-main {
  flex: 1;
  padding: var(--space-5) 0 var(--space-8);
}

.page-hero {
  margin-bottom: var(--space-5);
}

.page-title {
  margin: 0 0 6px;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.page-subtitle {
  margin: 0;
  max-width: 70ch;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid.cols-2 {
  grid-template-columns: 1fr;
}

.grid.cols-3 {
  grid-template-columns: 1fr;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: var(--space-4);
}

.card + .card {
  margin-top: var(--space-4);
}

.card-title {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.15;
}

.card-subtitle {
  margin: 0 0 var(--space-4);
  color: var(--muted);
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: 0.2s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.btn-danger {
  background: #fff1f1;
  color: var(--danger);
  border-color: #f2c9c9;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: var(--surface-2);
  color: var(--text);
}

.badge-success {
  background: #e8f8ef;
  color: var(--success);
}

.badge-warning {
  background: #fff5df;
  color: var(--warning);
}

.badge-danger {
  background: #fdeaea;
  color: var(--danger);
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-row {
  display: grid;
  gap: var(--space-4);
}

label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  padding: 12px 14px;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(11, 99, 206, 0.18);
  border-color: var(--primary);
}

.form-help {
  font-size: 13px;
  color: var(--muted);
}

.alert {
  border-radius: 14px;
  padding: 14px 16px;
  border: 1px solid transparent;
  font-weight: 600;
}

.alert-success {
  background: #e8f8ef;
  border-color: #bce8cb;
  color: #16603d;
}

.alert-error {
  background: #fdecec;
  border-color: #f2c4c4;
  color: #922f2f;
}

.kpi-list {
  display: grid;
  gap: var(--space-4);
}

.kpi-card {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.kpi-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 14px;
}

.kpi-value {
  margin: 0;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
}

.data-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: var(--surface);
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: #f8fbfe;
}

.mobile-cards {
  display: grid;
  gap: var(--space-4);
}

.mobile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: var(--space-4);
}

.mobile-card-row + .mobile-card-row {
  margin-top: 10px;
}

.mobile-card-label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.mobile-only {
  display: block;
}

.desktop-only {
  display: none;
}

.auth-wrap {
  min-height: calc(100dvh - 100px);
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(100%, 460px);
}

.center-text {
  text-align: center;
}

.site-footer {
  padding: var(--space-5) 0;
  color: var(--muted);
  font-size: 14px;
}

@media (min-width: 768px) {
  .site-header-inner {
    padding: 0;
  }

  .page-main {
    padding: var(--space-6) 0 var(--space-8);
  }

  .grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .form-row.two-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kpi-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mobile-only {
    display: none;
  }

  .desktop-only {
    display: block;
  }
}

@media (max-width: 767px) {
  .top-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .top-nav a {
    background: var(--surface);
    border: 1px solid var(--border);
  }

  .site-header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 0;
  }

  .page-main {
    padding-top: var(--space-4);
  }
}