:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #152033;
  --muted: #627089;
  --primary: #1d4ed8;
  --primary-dark: #1e40af;
  --border: #dbe3ef;
  --danger: #b91c1c;
  --success: #047857;
  --warning: #92400e;
  --shadow: 0 20px 45px rgba(21, 32, 51, 0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background: radial-gradient(circle at top left, #e0ecff, transparent 34%), var(--bg);
  color: var(--text);
}

a { color: var(--primary); }

.wrapper {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 44px 0;
}

.hero {
  text-align: center;
  margin-bottom: 28px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 48px);
  letter-spacing: -0.04em;
}

.hero p {
  margin: 0 auto;
  max-width: 680px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 22px;
  padding: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field { margin-bottom: 18px; }

.field.full { grid-column: 1 / -1; }

label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
}

input[type="text"], input[type="url"], input[type="password"], textarea, input[type="file"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 13px 14px;
  font: inherit;
  background: #fff;
  color: var(--text);
  outline: none;
}

textarea { min-height: 115px; resize: vertical; }

input:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
}

.help {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  line-height: 1.5;
}

.checkbox input { margin-top: 4px; }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  min-height: 44px;
}

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

.btn.secondary {
  background: #edf2ff;
  color: var(--primary-dark);
}

.alert {
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 18px;
  line-height: 1.5;
}

.alert.error {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
}

.alert.success {
  background: #ecfdf5;
  color: var(--success);
  border: 1px solid #bbf7d0;
}

.alert.warning {
  background: #fffbeb;
  color: var(--warning);
  border: 1px solid #fde68a;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

th, td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.preview {
  width: 82px;
  height: 82px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #f8fafc;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.kpi-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.kpi-card strong {
  display: block;
  font-size: 26px;
}

.kpi-card span { color: var(--muted); }

@media (max-width: 720px) {
  .form-grid, .kpi { grid-template-columns: 1fr; }
  .card { padding: 20px; }
}