:root {
  --bg: #0f172a;
  --panel: #111827;
  --card: #ffffff;
  --line: #e5e7eb;
  --text: #10233f;
  --muted: #6b7280;
  --accent: #ff6b13;
  --accent-dark: #e05600;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: #f3f4f6;
}

.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: linear-gradient(180deg, var(--bg), #1e293b);
  color: #fff;
  padding: 24px 18px;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-weight: 800;
}

.admin-brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}

.admin-nav {
  display: grid;
  gap: 8px;
}

.admin-nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 12px;
  font-weight: 700;
}

.admin-nav a.active,
.admin-nav a:hover {
  background: rgba(255,107,19,0.18);
  color: #fff;
}

.admin-main {
  padding: 28px;
}

.admin-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.admin-top h1 {
  margin: 0;
  font-size: 1.8rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 10px 30px rgba(16,35,63,0.05);
}

.grid-3 {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 16px;
  padding: 18px;
}

.stat small {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 700;
}

.stat strong {
  display: block;
  margin-top: 8px;
  font-size: 1.8rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.field label {
  font-weight: 700;
  font-size: 0.92rem;
}

.field input,
.field select,
.field textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--bg), var(--accent-dark));
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

.btn-ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-danger {
  background: #dc2626;
}

.status {
  display: none;
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 12px;
}

.status.show { display: block; }
.status.ok { background: #ecfdf5; color: #166534; }
.status.err { background: #fef2f2; color: #991b1b; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(255,107,19,0.12), transparent 28%),
    linear-gradient(180deg, #f8fafc, #e5e7eb);
}

.login-card {
  width: min(460px, 100%);
  background: #fff;
  border-radius: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(15,23,42,0.08);
}

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { padding-bottom: 12px; }
  .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 1024px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    width: 280px;
    max-width: 86vw;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 999;
    transform: translateX(-102%);
    transition: transform 0.26s ease;
    box-shadow: 18px 0 40px rgba(16, 35, 63, 0.20);
  }

  .admin-main {
    padding-top: 14px;
    padding-bottom: 18px;
  }
}

@media (max-width: 640px) {
  .admin-main {
    padding: 16px;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}