* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f0f2f5;
  color: #1a1a1a;
  line-height: 1.5;
}

.header {
  background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 100%);
  color: #fff;
  padding: 1.5rem 2rem;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.btn-logout {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  text-decoration: none;
  white-space: nowrap;
}

.btn-logout:hover { background: rgba(255, 255, 255, 0.25); }

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
}

.login-card h1 {
  margin: 0 0 0.5rem;
  color: #1e3a5f;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 1.25rem 0;
  font-size: 0.85rem;
  color: #444;
}

.login-card input[type="password"] {
  padding: 0.55rem 0.75rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

.btn-login {
  width: 100%;
  padding: 0.6rem;
  background: #1e3a5f;
  color: #fff;
}

.btn-login:hover { background: #2d5a87; }

.login-error {
  color: #c0392b;
  font-size: 0.9rem;
  margin: 0.75rem 0 0;
}

.login-hint {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: #888;
  text-align: center;
}

.header p {
  margin: 0;
  opacity: 0.85;
  font-size: 0.95rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: flex-end;
  margin-top: 1rem;
}

.period-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  align-items: flex-end;
}

.period-group label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  opacity: 0.9;
}

.toolbar input[type="month"],
.toolbar input[type="date"],
.toolbar select {
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.95);
  color: #1a1a1a;
  font-size: 0.9rem;
}

.btn {
  padding: 0.45rem 1rem;
  border: none;
  border-radius: 6px;
  background: #fff;
  color: #1e3a5f;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn:hover { background: #eef2f7; }
.btn:disabled { opacity: 0.6; cursor: wait; }

.btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover { background: rgba(255, 255, 255, 0.3); }

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  margin: 0;
}

.period-custom {
  padding-left: 1rem;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 1rem 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.card .label {
  font-size: 0.8rem;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card .value {
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.card.danger .value { color: #c0392b; }
.card.warn .value { color: #d68910; }
.card.ok .value { color: #1e8449; }

.section {
  background: #fff;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.section h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  border-bottom: 2px solid #eef0f3;
  padding-bottom: 0.5rem;
}

.section-desc {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  color: #555;
}

.column-legend {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.35rem 1.25rem;
  margin: 0 0 1rem;
  padding: 0.75rem 1rem;
  background: #f8f9fb;
  border-radius: 8px;
  border: 1px solid #eef0f3;
  font-size: 0.8rem;
}

.column-legend > div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.column-legend dt {
  margin: 0;
  font-weight: 600;
  color: #1e3a5f;
}

.column-legend dd {
  margin: 0;
  color: #555;
  line-height: 1.4;
}

.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.chart-box {
  background: #fff;
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  position: relative;
  height: 300px;
}

.chart-box canvas {
  max-height: 250px;
}

.chart-box h3 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: #444;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #eef0f3;
}

th {
  background: #f8f9fb;
  font-weight: 600;
  white-space: nowrap;
}

tr:hover td { background: #fafbfc; }

.num { text-align: right; font-variant-numeric: tabular-nums; }
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.high { background: #fdecea; color: #c0392b; }
.badge.mid { background: #fef5e7; color: #d68910; }
.badge.low { background: #eafaf1; color: #1e8449; }

.analysis-text {
  white-space: pre-wrap;
  background: #f8f9fb;
  border: 1px solid #e2e6ec;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #333;
}

.empty, .loading, .error {
  text-align: center;
  padding: 3rem 1.5rem;
  color: #666;
}

.error {
  color: #333;
  text-align: left;
  max-width: 640px;
  margin: 2rem auto;
  padding: 1.5rem;
  background: #fff;
  border-radius: 10px;
  border: 1px solid #f5c6cb;
}

.error pre {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .header { padding: 1rem; }
  .container { padding: 1rem; }
}