:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17212f;
  --muted: #5f6b7a;
  --line: #d8dee6;
  --accent: #005f73;
  --accent-strong: #004f60;
  --warn: #bc6c25;
  --danger: #9b2226;
  --ok: #2a9d8f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 10% 5%, #fdf8ed 0%, var(--bg) 35%, #eef3f8 100%);
  color: var(--text);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.page {
  width: min(1280px, 96vw);
  margin: 20px auto 40px;
  display: grid;
  gap: 16px;
}

.topbar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
}

.topbar h1 {
  margin: 0;
  font-size: 26px;
}

.topbar p {
  margin: 6px 0 0;
  color: var(--muted);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-logo {
  width: 130px;
  max-width: 22vw;
  height: auto;
}

.auth-box {
  display: flex;
  align-items: center;
  gap: 10px;
}

.auth-box #whoami {
  font-size: 13px;
  color: var(--muted);
}

.week-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.week-control select,
.week-control button {
  height: 34px;
}

.app-nav {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app-nav a {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 7px 14px;
  font-size: 14px;
  line-height: 1;
}

.app-nav a:hover {
  border-color: var(--accent);
}

.app-nav a.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.card .label {
  color: var(--muted);
  font-size: 13px;
}

.card .value {
  margin-top: 4px;
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.form-grid.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid input,
.form-grid select,
.form-grid button,
.secondary-btn {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 8px 10px;
  min-height: 36px;
  font-size: 14px;
  background: #fff;
}

.form-grid button,
.login-form button {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.form-grid button:hover,
.login-form button:hover {
  background: var(--accent-strong);
}

.secondary-btn {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 780px;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 8px;
  font-size: 14px;
  vertical-align: middle;
}

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

.risk-normal {
  color: var(--ok);
}

.risk-warn {
  color: var(--warn);
}

.risk-danger {
  color: var(--danger);
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.login-card {
  width: min(460px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px;
}

.login-card h1 {
  margin: 0 0 6px;
  font-size: 23px;
}

.login-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.login-hero-image {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0 0 12px;
}

.login-form {
  display: grid;
  gap: 12px;
}

.login-form label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.login-form input {
  border: 1px solid var(--line);
  border-radius: 7px;
  min-height: 38px;
  padding: 8px 10px;
  font-size: 14px;
}

.captcha-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.captcha-question {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.form-error {
  min-height: 18px;
  margin: 0;
  color: var(--danger);
  font-size: 13px;
}

@media (max-width: 1080px) {
  .two-col {
    grid-template-columns: 1fr;
  }
  .form-grid,
  .form-grid.compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 780px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
  .topbar-brand {
    align-items: flex-start;
  }
  .topbar-logo {
    width: 110px;
    max-width: 45vw;
  }
  .week-control {
    flex-wrap: wrap;
  }
}

@media (max-width: 680px) {
  .form-grid,
  .form-grid.compact {
    grid-template-columns: 1fr;
  }
  .auth-box {
    justify-content: space-between;
  }
}