:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg: #f5f7fb;
  --bg-grad-1: #f8fbff;
  --bg-grad-2: #eef3fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e5e7eb;
  --ring: rgba(37, 99, 235, 0.25);
  --radius: 14px;
  --shadow-1: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-2: 0 14px 38px rgba(15, 23, 42, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
}
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1000px 650px at 0% 0%, var(--bg-grad-1), transparent 60%),
              radial-gradient(900px 600px at 100% 0%, var(--bg-grad-2), transparent 55%),
              var(--bg);
  min-height: 100vh;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.navbar-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.2px;
}
.navbar-links a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 14px;
  padding: 8px 12px;
  border-radius: 10px;
  transition: all 0.2s ease;
}
.navbar-links a:hover {
  color: var(--text);
  background: rgba(15, 23, 42, 0.05);
}
.navbar-links .logout {
  color: #b91c1c;
}
.navbar-links .logout:hover {
  background: rgba(185, 28, 28, 0.08);
}

.container {
  max-width: 1100px;
  margin: 28px auto 48px;
  padding: 0 20px;
  padding-bottom: 64px;
}

.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  color: var(--muted);
  font-size: 14px;
}

.page-header {
  margin-bottom: 18px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.page-title {
  margin: 0 0 4px 0;
  font-size: 26px;
  font-weight: 700;
}
.page-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.page-actions {
  display: flex;
  gap: 10px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 20px;
}
.empty-state {
  text-align: center;
  color: var(--muted);
}

.widgets {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.widget-card {
  background: linear-gradient(180deg, #fff, #fafcff);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 18px;
}
.widget-label {
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 8px;
}
.widget-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--text);
}

.table-wrap {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
}
.table thead th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.3px;
  background: #f9fafb;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.table tbody td {
  padding: 14px;
  border-bottom: 1px solid #f1f5f9;
}
.table tbody tr:hover td {
  background: #f9fbff;
  transition: background 0.15s ease;
}

.form {
  display: grid;
  gap: 16px;
}
.form-group {
  display: grid;
  gap: 8px;
}
.form-group label {
  font-weight: 600;
  color: #334155;
  font-size: 14px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  color: var(--text);
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.form-group textarea {
  resize: vertical;
  min-height: 160px;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #a7c2ff;
  box-shadow: 0 0 0 4px var(--ring);
  background: #ffffff;
}
.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.button {
  appearance: none;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  border-radius: 12px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.05s ease, background 0.2s ease, border 0.2s ease;
}
.button:hover {
  background: #f5f7fb;
}
.button:active {
  transform: translateY(1px);
}
.button-primary {
  color: #ffffff;
  background: linear-gradient(180deg, #3b82f6, var(--primary));
  border-color: rgba(37, 99, 235, 0.4);
}
.button-primary:hover {
  background: linear-gradient(180deg, #2f74ed, var(--primary-hover));
}
.button-secondary {
  background: #ffffff;
}

.flash-stack {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}
.flash {
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: #ffffff;
}
.flash-success {
  border-color: #a7f3d0;
  background: #ecfdf5;
  color: #065f46;
}
.flash-danger,
.flash-error {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}
.flash-warning {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}

.auth-wrapper {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 120px);
  padding-top: 40px;
}
.auth-card {
  max-width: 420px;
  width: 100%;
}

@media (max-width: 900px) {
  .widgets {
    grid-template-columns: 1fr;
  }
}