:root {
  --bg: #eef0f2;
  --panel: #ffffff;
  --text: #111317;
  --muted: #5e646d;
  --line: #cfd4da;
  --primary: #111317;
  --secondary: #65758b;
  --accent: #d2b12f;
}

* { box-sizing: border-box; }
html, body {
  width: 100%;
  overflow-x: hidden;
}
body {
  margin: 0;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1400px 700px at 0% -10%, #f6f7f8 0%, transparent 55%),
    linear-gradient(180deg, #f2f3f5 0%, #e8ebef 100%);
}

.hidden { display: none !important; }

.brand-header {
  padding: 16px 18px 12px;
  background: linear-gradient(135deg, #0f1114 0%, #1a1d22 60%, #252a31 100%);
  border-bottom: 3px solid var(--accent);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.brand-wrap {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 170px 220px;
  align-items: center;
  gap: 12px;
  max-width: 1200px;
  margin: 0 auto;
}

.brand-copy {
  min-width: 0;
}

h1 {
  margin: 0 0 4px;
  font-size: 1.65rem;
  color: #f9fafb;
}

.tagline {
  margin: 0 0 4px;
  color: #ced4dc;
  font-size: 0.96rem;
}

.brand-logo {
  width: 170px;
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid #333943;
  background: #e7e8ea;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
}

#generatedAt {
  margin: 0;
  color: #e5e9ef;
  font-size: 0.9rem;
}

.auth-box {
  min-width: 0;
  width: 100%;
  max-width: 220px;
  justify-self: end;
  padding: 8px 9px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.header-mid {
  min-width: 0;
  width: 210px;
  max-width: 100%;
  justify-self: end;
  padding: 8px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  gap: 4px;
}

.header-mid > div {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 8px;
  font-size: 0.86rem;
  color: #f4f6f9;
}

.header-mid .k {
  color: #cfd6df;
  font-weight: 600;
}

.auth-box p {
  margin: 0 0 8px;
  color: #f4f6f9;
  font-size: 0.88rem;
}

.auth-actions {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}

.auth-actions .btn,
.auth-actions button {
  min-width: 0;
  flex: 1 1 0;
  white-space: nowrap;
  font-size: 0.82rem;
  padding: 7px 8px;
}

.page-shell {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
  padding: 10px 14px 14px;
  overflow-x: hidden;
}

.filter-actions {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
}

.view-tabs {
  display: flex;
  gap: 8px;
  padding: 10px 14px 6px;
  position: sticky;
  top: var(--sticky-header-h, 96px);
  z-index: 950;
  background: #eef0f2;
  border-bottom: 1px solid #d9dee5;
}

.tab-btn {
  background: #eceff3;
  color: #1a1f25;
  border: 1px solid #cdd3db;
}

.tab-btn.active {
  background: #111317;
  color: #fff;
  border-color: #111317;
}

.status-row {
  margin: 0 14px 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #f8fafb;
  font-size: 0.9rem;
  color: #2c3b4f;
}

label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.9rem;
}

input, select, button, .btn {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 0.95rem;
  background: white;
}

button, .btn {
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button.secondary, .btn.secondary { background: var(--secondary); }
button.tertiary, .btn.tertiary {
  background: #eceff3;
  color: #1a1f25;
  border: 1px solid #cdd3db;
}

button.active, .btn.active {
  background: var(--accent);
  color: #111317;
  border: 1px solid #b59722;
}

.quick-range {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

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

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 2px 10px rgba(9, 24, 44, 0.06);
  border-top: 3px solid var(--accent);
  min-width: 0;
}

.action-card {
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.action-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(9, 24, 44, 0.14);
}

.card-link {
  margin-top: 6px;
  font-size: 0.76rem;
  color: #4c5a68;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card h3 {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  font-weight: 600;
}

.card .value {
  margin-top: 7px;
  font-size: 1.6rem;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 14px 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
  box-shadow: 0 2px 10px rgba(9, 24, 44, 0.06);
  min-width: 0;
}

.panel.full { grid-column: 1 / -1; }

.panel h2 {
  margin: 0 0 8px;
  font-size: 0.96rem;
}

.panel h3 {
  margin: 0 0 8px;
  font-size: 0.92rem;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.gate-panel {
  margin: 14px;
  text-align: center;
  padding: 20px;
}

.finder-panel {
  margin: 0 14px 18px;
}

.admin-panel {
  display: grid;
  gap: 12px;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.admin-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.admin-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.admin-copy {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.admin-card input[type="file"] {
  width: 100%;
  background: #fff;
}

.admin-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.admin-file-list {
  margin-top: 12px;
  border-top: 1px solid #e3e8ee;
  padding-top: 10px;
  min-height: 120px;
  max-height: 260px;
  overflow: auto;
}

.admin-file-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #edf1f6;
  font-size: 0.88rem;
}

.admin-file-name {
  font-weight: 600;
  color: #111317;
  word-break: break-word;
}

.admin-file-meta {
  color: var(--muted);
  white-space: nowrap;
  font-size: 0.82rem;
}

.clock-frame {
  width: 100%;
  min-height: 78vh;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0d1117;
}

.finder-controls {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
}

.finder-controls label {
  min-width: 160px;
}

.finder-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
}

.finder-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fbfcfd;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.finder-detail-shell {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.finder-schedule-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: stretch;
  flex: 1 1 auto;
  min-height: 0;
}

.finder-schedule-grid .insight-block {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.finder-schedule-grid .table-wrap,
.finder-schedule-grid .rows-5-wrap {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
}

.finder-schedule-grid .insight-block p {
  flex: 1 1 auto;
  margin: 0;
}


.finder-compare {
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
  padding: 10px;
}

.finder-add-btn {
  margin: 0 0 10px;
  width: fit-content;
}

.finder-compare-controls {
  display: grid;
  grid-template-columns: 2fr 1fr auto;
  gap: 10px;
  align-items: end;
}

.compare-btns {
  display: grid;
  gap: 8px;
}

.finder-compare-controls textarea {
  resize: vertical;
  min-height: 74px;
}

.finder-compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

#finderResultsTable th,
#finderResultsTable td {
  padding: 6px 8px;
  font-size: 0.86rem;
}

#finderResultsWrap {
  min-height: 920px !important;
  height: 920px !important;
  max-height: 920px !important;
  overflow-y: auto !important;
  overflow-x: auto;
  flex: 0 0 auto;
}

#finderDetail {
  min-height: 920px;
  height: 920px;
  overflow: hidden;
}

#dailyChart,
#locationChart {
  width: 100%;
  height: 220px;
}

.table-wrap {
  overflow: auto;
  max-height: 320px;
}

.no-scroll-wrap {
  overflow: visible;
  max-height: none;
}

.rows-5-wrap {
  max-height: 190px;
  overflow: auto;
}

.clickable-row {
  cursor: pointer;
}

.clickable-row:hover {
  background: #f5f7fa;
}

.schedule-lunch-note {
  margin-left: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  color: #2563eb;
}

.current-block-row {
  background: #fff8d8;
  font-weight: 700;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

th, td {
  border-bottom: 1px solid #edf1f6;
  padding: 8px;
  text-align: left;
}

th {
  background: #f4f5f7;
  position: sticky;
  top: 0;
}

.chart-tooltip {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
  background: rgba(17, 19, 23, 0.95);
  color: #f3f5f8;
  border: 1px solid #3a4048;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.82rem;
  line-height: 1.35;
  opacity: 0;
  transition: opacity 120ms ease;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.35);
}

.insight-hint {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.demo-shell {
  display: grid;
  gap: 12px;
}

.demo-grade-strip {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fb 100%);
  padding: 12px;
}

.demo-grade-strip-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 10px;
}

.demo-grade-strip-head h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.demo-grade-strip-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.demo-grade-total {
  font-size: 0.88rem;
  font-weight: 700;
  color: #1a1f25;
  white-space: nowrap;
}

.demo-grade-bars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.demo-grade-bar {
  position: relative;
  overflow: hidden;
  border: 1px solid #cfd4da;
  border-radius: 12px;
  background: #f2f5f8;
  color: #111317;
  min-height: 84px;
  padding: 12px;
  text-align: left;
}

.demo-grade-bar.active {
  border-color: #111317;
  box-shadow: inset 0 0 0 1px #111317;
}

.demo-grade-fill {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 8px;
  background: linear-gradient(90deg, #111317 0%, #d2b12f 100%);
  border-radius: 0 999px 999px 0;
}

.demo-grade-label,
.demo-grade-value {
  position: relative;
  z-index: 1;
  display: block;
}

.demo-grade-label {
  font-size: 0.92rem;
  font-weight: 700;
}

.demo-grade-value {
  margin-top: 10px;
  font-size: 1.35rem;
  font-weight: 800;
}

.demo-detail-grid {
  display: grid;
  gap: 12px;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.demo-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
  padding: 10px;
}

.demo-block.demo-block-wide {
  padding-bottom: 6px;
}

.demo-block h3 {
  margin: 0 0 8px;
  font-size: 0.92rem;
}

.demo-place-cards {
  display: grid;
  gap: 10px;
}

.demo-place-card {
  border: 1px solid #d8dde4;
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbfd 100%);
  padding: 12px;
}

.demo-place-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 10px;
}

.demo-place-head h3 {
  margin: 0 0 2px;
  font-size: 0.98rem;
}

.demo-place-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.demo-place-total {
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
}

.demo-place-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.demo-place-section {
  border: 1px solid #e5e9ef;
  border-radius: 10px;
  background: #fbfcfd;
  padding: 10px;
}

.demo-place-section h4 {
  margin: 0 0 8px;
  font-size: 0.88rem;
}

.demo-place-list {
  display: grid;
  gap: 6px;
}

.demo-place-item {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  font-size: 0.84rem;
  align-items: center;
}

.demo-place-item strong {
  font-size: 0.88rem;
}

.insight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.insight-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fbfcfd;
}

.insight-block h3 {
  margin: 0 0 8px;
  font-size: 0.95rem;
}

.kv {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 4px 8px;
  font-size: 0.9rem;
}

.kv .k {
  color: var(--muted);
}

.mini-kv {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 4px 8px;
  font-size: 0.9rem;
}

.mini-kv .k {
  color: var(--muted);
}

.compact-kv {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.compact-kv .mini-row {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto 1fr auto 1fr;
  gap: 6px 10px;
  align-items: center;
  font-size: 0.88rem;
}

.compact-kv .mini-row.row-student {
  grid-template-columns: auto minmax(260px, 2fr) auto minmax(92px, auto) auto minmax(62px, auto);
}

.compact-kv .mini-row.row-totals {
  grid-template-columns: auto minmax(38px, 4ch) auto minmax(38px, 4ch) auto minmax(92px, auto);
  gap: 6px 8px;
}

.compact-kv .mini-row .k {
  font-weight: 700;
  color: #111317;
  white-space: nowrap;
}

.compact-kv .mini-row.row-student span:nth-child(2) {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.compact-kv .mini-row.row-totals span:nth-child(2),
.compact-kv .mini-row.row-totals span:nth-child(4),
.compact-kv .mini-row.row-totals span:nth-child(6) {
  white-space: nowrap;
}

.finder-schedule-grid {
  margin-top: 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 980px) {
  .brand-wrap {
    grid-template-columns: 130px minmax(0, 1fr) minmax(145px, 180px) minmax(190px, 240px);
    gap: 12px;
  }
  .brand-logo {
    width: 130px;
  }
  h1 {
    font-size: 1.4rem;
  }
  .tagline {
    font-size: 0.88rem;
  }
  .header-mid > div {
    grid-template-columns: 42px 1fr;
    font-size: 0.8rem;
  }
  .auth-box p {
    font-size: 0.8rem;
  }
  .filters {
    padding: 10px 10px 12px;
  }
  .cards { grid-template-columns: 1fr 1fr; padding: 0 10px 10px; }
  .grid { grid-template-columns: 1fr; padding: 0 10px 14px; }
  .admin-grid { grid-template-columns: 1fr; }
  canvas { width: 100%; height: auto; }
  .insight-grid { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; }
  .mini-kv { grid-template-columns: 1fr; }
  .compact-kv .mini-row { grid-template-columns: auto 1fr auto 1fr; }
  .finder-schedule-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .finder-grid { grid-template-columns: 1fr; }
  .finder-compare-controls { grid-template-columns: 1fr; }
  .finder-compare-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .brand-wrap {
    grid-template-columns: 1fr;
    align-items: flex-start;
  }
  .header-mid,
  .auth-box {
    width: 100%;
    max-width: none;
    justify-self: stretch;
  }
}


.demo-place-toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.demo-place-picker {
  display: grid;
  gap: 0.35rem;
  min-width: 260px;
}

.demo-place-picker span {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink-2);
}

.demo-place-picker input,
.demo-place-picker select {
  border: 1px solid rgba(15, 23, 42, 0.16);
  border-radius: 12px;
  padding: 0.7rem 0.85rem;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

.demo-place-picker input {
  display: none;
}

.demo-place-card-single {
  max-width: none;
}


.demo-export-row {
  margin-top: 0.85rem;
  display: flex;
  justify-content: flex-end;
}


.demo-detail-tabs {
  display: flex;
  gap: 8px;
  margin: 0 0 12px;
}

.demo-tab-btn {
  background: #eceff3;
  color: #1a1f25;
  border: 1px solid #cdd3db;
}

.demo-tab-btn.active {
  background: #111317;
  color: #fff;
  border-color: #111317;
}