:root {
  --bg: #f7f9fc;
  --bg-soft: #eef3ff;
  --card: #ffffff;
  --line: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --accent: #06b6d4;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }

.shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #ffffff;
  padding: 24px 16px;
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.nav-link {
  display: block;
  padding: 11px 12px;
  margin-bottom: 8px;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  color: #0b3aa4;
  background: #eaf1ff;
}

.main {
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
}

.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: #e6f4ff;
  color: #0b63b6;
  font-size: 0.8rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.card h3 {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.card .value {
  font-size: 1.7rem;
  font-weight: 700;
  margin-top: 6px;
}

.panel {
  margin-top: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.panel-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.table th,
.table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.table th { color: var(--muted); font-weight: 600; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary { background: linear-gradient(135deg, #2563eb, #1d4ed8 55%, #0ea5e9); color: #fff; }
.btn-soft { background: #eff6ff; color: #1e40af; border: 1px solid #dbeafe; }
.btn-danger { background: #ef4444; color: #fff; }

.form-wrap {
  max-width: 780px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

label {
  display: block;
  margin: 14px 0 6px;
  color: var(--muted);
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--text);
  border-radius: 10px;
  padding: 11px 12px;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.helptext, ul.errorlist { color: #fca5a5; font-size: 0.85rem; }

.flash {
  margin-bottom: 14px;
  border: 1px solid #a7f3d0;
  background: #ecfdf5;
  color: #047857;
  border-radius: 10px;
  padding: 10px 12px;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #f1f5ff 100%);
}

.login-box {
  width: min(440px, 100%);
  border: 1px solid #dbe5f3;
  border-radius: 22px;
  padding: 24px;
  text-align: center;
  background: #ffffff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

.login-sub {
  color: var(--muted);
  margin-top: 4px;
}

.login-box label {
  text-align: center;
  margin-top: 10px;
}

.login-box input {
  text-align: center;
  border: 1px solid #c7d8f5;
  background: #ffffff;
}

.login-box .btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8 45%, #0ea5e9);
}

.login-box .btn-primary:hover {
  filter: brightness(1.05);
}

.page-intro {
  background: linear-gradient(135deg, #ffffff, #f2f7ff);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.page-intro h2 {
  margin: 0;
  font-size: 1.2rem;
}

.page-intro p {
  margin: 8px 0 0;
  color: var(--muted);
}

.storage-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.storage-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.storage-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.86rem;
  margin-top: 6px;
}

.type-pill {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  background: #eef2ff;
  color: #4338ca;
}

.format-pill {
  display: inline-block;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  background: #ecfeff;
  color: #0e7490;
}

.storage-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.module-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.module-form-grid .full-row {
  grid-column: 1 / -1;
}

.field-box label {
  margin: 0 0 6px;
  font-size: 0.95rem;
}

.field-box .helptext,
.field-box ul.errorlist {
  margin-top: 6px;
  display: block;
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
}

.inline-check input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.mobile-toggle {
  display: none;
}

@media (max-width: 960px) {
  .shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none;
  }
  .sidebar.open {
    display: block;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .storage-grid,
  .section-grid,
  .module-form-grid {
    grid-template-columns: 1fr;
  }
  .mobile-toggle {
    display: inline-flex;
  }
}