:root {
  color-scheme: light;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(160deg, #f2f4f8, #dbe8ef);
}

.container {
  width: min(92vw, 760px);
  margin: 32px auto;
  background: #ffffff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(22, 34, 58, 0.12);
}

h1 {
  margin-top: 0;
}

.main-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.logout-btn {
  background: #425469;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-card {
  width: min(92vw, 420px);
  background: #ffffff;
  border-radius: 14px;
  padding: 26px;
  box-shadow: 0 14px 40px rgba(22, 34, 58, 0.16);
}

.login-help {
  margin: 8px 0 0;
  color: #40516b;
}

.login-form {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.remember-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
}

.remember-row input {
  width: 16px;
  height: 16px;
  margin: 0;
}

.login-error {
  margin: 0;
  min-height: 1.2em;
  color: #b42318;
  font-size: 0.9rem;
}

.card {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid #d7deea;
  border-radius: 10px;
  background: #f8fbff;
}

.filters {
  margin: 14px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
  color: #1c2a44;
}

input,
select {
  border: 1px solid #c5d3e3;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.95rem;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  background: #0b6bcb;
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  filter: brightness(1.05);
}

pre {
  margin-top: 16px;
  padding: 12px;
  background: #f6f8fb;
  border: 1px solid #d7deea;
  border-radius: 8px;
  white-space: pre-wrap;
  word-break: break-word;
}

.charts-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

.chart-card {
  background: #ffffff;
  border: 1px solid #d7deea;
  border-radius: 10px;
  padding: 10px;
  min-height: 280px;
  overflow: hidden;
}

.chart-card h3 {
  margin: 0 0 8px 0;
  font-size: 1rem;
  color: #1c2a44;
}

.chart-viewport {
  position: relative;
  width: 100%;
  height: 230px;
  max-height: 230px;
}

.chart-card canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}