:root { font-family: Arial, sans-serif; color: #333; background: #f5f7fb; }
* { box-sizing: border-box; }
body { margin: 0; }
.container { max-width: 1500px; margin: 0 auto; min-height: 100vh; background: #fff; }
header { display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; background: linear-gradient(135deg, #667eea, #764ba2); color: #fff; }
header h1 { margin: 0; font-size: 24px; }
.user-info { display: flex; gap: 10px; align-items: center; }
.role-badge { padding: 4px 8px; border-radius: 12px; background: rgba(255,255,255,.2); font-size: 12px; }
.link-button { border: 0; background: transparent; color: #fff; text-decoration: underline; cursor: pointer; }
.main-nav { display: flex; flex-wrap: wrap; gap: 4px; padding: 10px 16px; box-shadow: 0 2px 7px rgba(0,0,0,.12); }
.nav-btn { border: 0; background: transparent; padding: 10px 12px; border-radius: 5px; cursor: pointer; }
.nav-btn:hover, .nav-btn.active { color: #fff; background: #667eea; }
main { padding: 24px; min-height: 70vh; }
.screen { display: none; }
.screen.active { display: block; }
footer { padding: 12px 24px; color: #777; text-align: center; border-top: 1px solid #eee; }
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, #667eea, #764ba2); }
.login-card { width: min(390px, calc(100% - 32px)); padding: 32px; border-radius: 12px; background: #fff; box-shadow: 0 18px 50px rgba(0,0,0,.25); }
.login-card h1 { margin: 0; }
.login-card p { color: #777; }
.login-card label { display: grid; gap: 6px; margin: 16px 0; }
.login-card input { padding: 11px; border: 1px solid #ccd2df; border-radius: 5px; }
.login-card button { width: 100%; padding: 12px; border: 0; border-radius: 5px; color: #fff; background: #667eea; cursor: pointer; }
.password-field { display: grid; grid-template-columns: minmax(0, 1fr) auto; }
.password-field input { min-width: 0; border-radius: 5px 0 0 5px; }
.login-card .password-toggle {
  width: auto;
  padding: 0 12px;
  border: 1px solid #ccd2df;
  border-left: 0;
  border-radius: 0 5px 5px 0;
  color: #5362b8;
  background: #f7f8fc;
}
.login-card .password-toggle:hover { background: #eef0fa; }
.login-card .password-toggle:focus-visible { outline: 2px solid #667eea; outline-offset: 2px; }
.alert.error { padding: 10px; color: #a32121; background: #fee; border-radius: 5px; }
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; }
.toolbar input, .toolbar select { padding: 9px; border: 1px solid #ccd2df; border-radius: 5px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px; border-bottom: 1px solid #e6e9ef; text-align: left; }
th { background: #f2f4f9; position: sticky; top: 0; }
.muted { color: #777; }
.panel { margin: 18px 0; padding: 18px; border: 1px solid #e2e6ef; border-radius: 8px; background: #fff; }
.panel h3 { margin-top: 0; }
.toolbar button { padding: 9px 14px; border: 0; border-radius: 5px; color: #fff; background: #667eea; cursor: pointer; }
.hour-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 8px; }
.hour-grid label { display: grid; gap: 4px; font-size: 12px; color: #666; }
.hour-grid input { width: 100%; padding: 8px; border: 1px solid #ccd2df; border-radius: 4px; }
.flag-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; }
.setting-value { width: 100%; min-width: 120px; padding: 7px; border: 1px solid #ccd2df; border-radius: 4px; }
.save-setting { padding: 7px 10px; border: 0; border-radius: 4px; color: #fff; background: #667eea; cursor: pointer; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; align-items: end; }
.form-grid label { display: grid; gap: 5px; }
.form-grid input, .form-grid select, .wish-row input, .wish-row select { width: 100%; padding: 7px; border: 1px solid #ccd2df; border-radius: 4px; }
.form-grid button { padding: 9px; border: 0; border-radius: 5px; color: #fff; background: #667eea; cursor: pointer; }
.danger { padding: 6px 9px; border: 0; border-radius: 4px; color: #fff; background: #d9534f; cursor: pointer; }
.table-scroll { max-height: 65vh; overflow: auto; }
.summary-grid { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0; }
.summary-grid > div { padding: 12px 16px; border-radius: 7px; background: #eef1ff; }
.matrix { font-size: 12px; min-width: 1450px; }
.matrix th, .matrix td { padding: 5px; text-align: center; }
.shift-matrix { min-width: 2400px; }
.shift-matrix input { width: 58px; padding: 4px; border: 1px solid #ccd2df; border-radius: 3px; text-align: center; }
.card-matrix { min-width: 1800px; }
.bad { color: #fff; background: #d9534f; font-weight: bold; }
.hidden { display: none !important; }
.edit-employee { padding: 6px 9px; border: 0; border-radius: 4px; color: #fff; background: #667eea; cursor: pointer; }
.history-chart { min-height: 220px; margin: 12px 0; border: 1px solid #e2e6ef; border-radius: 7px; background: #fafbff; }
.history-chart svg { display: block; width: 100%; height: 220px; }
.chart-axis { stroke: #aab1c4; stroke-width: 1; }
.chart-line { fill: none; stroke: #667eea; stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.history-matrix { min-width: 1700px; }