html {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

/* Global Dark Scrollbars */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #0a0a0a;
}

::-webkit-scrollbar-thumb {
  background: #2a2a2a;
  border-radius: 5px;
  border: 2px solid #0a0a0a;
}

::-webkit-scrollbar-thumb:hover {
  background: #444444;
}

:root {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --bg-main: #000000;
  --bg-surface: #0a0a0a;
  --bg-surface-hover: #141414;
  --border-color: #222222;
  --border-color-light: #333333;
  --text-primary: #ffffff;
  --text-secondary: #888888;
  --accent-color: #ffffff;
}

body {
  margin: 0;
  background-color: var(--bg-main);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.topbar {
  background-color: #000000;
  border-bottom: 1px solid var(--border-color);
  padding: 20px clamp(20px, 4vw, 48px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.topbar h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.topbar p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13.5px;
}

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

.views-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.status {
  padding: 6px 14px;
  border-radius: 6px;
  background: #0a0a0a;
  border: 1px solid var(--border-color);
  color: #ffffff;
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
}

/* Container */
.container {
  width: min(1560px, 94%);
  margin: 24px auto 50px;
}

/* Base Cards & Panels */
.search-panel, .panel, .grid-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.search-panel {
  padding: 16px;
  margin-bottom: 18px;
}

.search-box {
  height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0 14px;
  background: #000000;
}

.search-box:focus-within {
  border-color: #555555;
}

.search-box span {
  font-size: 18px;
  color: var(--text-secondary);
}

.search-box input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 14px;
  color: var(--text-primary);
}

.search-box input::placeholder {
  color: #555555;
}

button {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 500;
  font-size: 13px;
  transition: all 0.15s;
}

.search-box button {
  background: #111111;
  color: #cccccc;
}

.search-box button:hover {
  background: #222222;
  color: #ffffff;
}

.filter-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

select {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 12px;
  background: #000000;
  color: #ffffff;
  min-width: 190px;
  outline: 0;
  font-size: 13px;
}

select option {
  background-color: #0a0a0a;
  color: #ffffff;
}

select:focus {
  border-color: #555555;
}

/* Metric Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(7, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
}

.card span {
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  display: block;
}

.card strong {
  font-size: 24px;
  font-weight: 700;
  margin-top: 6px;
  display: block;
  color: var(--text-primary);
}

/* Analytics Layout */
.analytics-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.panel {
  padding: 18px;
  min-height: 260px;
}

.panel-header, .grid-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 14px;
}

.panel h2, .grid-toolbar h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.panel-header span, #resultCount {
  color: var(--text-secondary);
  font-size: 12px;
}

/* Company Bar Charts */
.bar-row {
  display: grid;
  grid-template-columns: 140px 1fr 40px;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
  font-size: 13px;
}

.bar-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #dddddd;
}

.bar-track {
  height: 7px;
  background: #111111;
  border-radius: 4px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: #ffffff;
  border-radius: inherit;
}

.bar-value {
  text-align: right;
  font-weight: 600;
  color: #ffffff;
}

/* Placement Donut */
.overview {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 190px;
  position: relative;
}

.donut {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(#ffffff var(--placed), #1a1a1a 0);
}

.donut::after {
  content: "";
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--bg-surface);
  position: absolute;
}

.donut-text {
  position: absolute;
  z-index: 1;
  text-align: center;
}

.donut-text strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.donut-text span {
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
}

/* Quality List */
.quality-list {
  margin-top: 6px;
}

.quality-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  color: #cccccc;
}

.quality-item strong {
  color: #ffffff;
  font-size: 13.5px;
}

/* Grid Panel & Buttons */
.grid-panel {
  padding: 18px;
}

.toolbar-actions {
  display: flex;
  gap: 8px;
}

.primary {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.primary:hover {
  background: #dddddd;
}

.secondary {
  background: #111111;
  color: #ffffff;
  border-color: var(--border-color);
}

.secondary:hover {
  background: #222222;
}

/* AG Grid OLED Pure Black Integration */
#studentGrid {
  width: 100%;
  height: 600px;
  margin-top: 14px;
  border-radius: 6px;
  overflow: hidden;
}

.ag-theme-quartz,
.ag-theme-quartz-dark,
[class*="ag-theme-"] {
  --ag-background-color: #000000 !important;
  --ag-header-background-color: #0a0a0a !important;
  --ag-odd-row-background-color: #050505 !important;
  --ag-even-row-background-color: #000000 !important;
  --ag-row-hover-color: #1c1c1c !important;
  --ag-border-color: #222222 !important;
  --ag-text-color: #ffffff !important;
  --ag-header-foreground-color: #aaaaaa !important;
  --ag-row-border-color: #1a1a1a !important;
  --ag-control-panel-background-color: #0a0a0a !important;
  --ag-subheader-background-color: #0a0a0a !important;
  --ag-data-color: #ffffff !important;
  --ag-input-focus-border-color: #555555 !important;
  --ag-icon-color: #ffffff !important;
}

/* Hard override for all AG-Grid background layers */
#studentGrid .ag-root-wrapper,
#studentGrid .ag-root-wrapper-body,
#studentGrid .ag-header,
#studentGrid .ag-header-row,
#studentGrid .ag-row,
#studentGrid .ag-cell,
#studentGrid .ag-paging-panel {
  background-color: #000000 !important;
  color: #ffffff !important;
  border-color: #222222 !important;
}

/* Pagination buttons and dropdown text white styling */
#studentGrid .ag-paging-panel .ag-paging-button,
#studentGrid .ag-paging-panel .ag-button,
#studentGrid .ag-paging-panel button,
#studentGrid .ag-paging-number,
#studentGrid .ag-paging-page-summary-panel,
#studentGrid .ag-paging-panel select,
#studentGrid .ag-paging-panel .ag-picker-field-display,
#studentGrid .ag-paging-panel .ag-picker-field-wrapper,
.ag-select-list,
.ag-select-list-item,
.ag-picker-field-display {
  color: #ffffff !important;
}

#studentGrid .ag-paging-panel select option {
  background-color: #0a0a0a !important;
  color: #ffffff !important;
}

#studentGrid .ag-paging-panel .ag-paging-button .ag-icon,
#studentGrid .ag-paging-panel .ag-icon,
#studentGrid .ag-paging-panel svg {
  color: #ffffff !important;
  fill: #ffffff !important;
}

#studentGrid .ag-paging-panel .ag-paging-button:not(.ag-disabled):hover,
#studentGrid .ag-paging-panel button:not(:disabled):hover {
  background-color: #222222 !important;
  color: #ffffff !important;
}

#studentGrid .ag-paging-panel .ag-paging-button.ag-disabled,
#studentGrid .ag-paging-panel button:disabled,
#studentGrid .ag-paging-panel .ag-disabled .ag-icon {
  color: #555555 !important;
  fill: #555555 !important;
  opacity: 0.4 !important;
}

#studentGrid ::-webkit-scrollbar,
.ag-body-viewport ::-webkit-scrollbar {
  width: 10px !important;
  height: 10px !important;
}

#studentGrid ::-webkit-scrollbar-track,
.ag-body-viewport ::-webkit-scrollbar-track {
  background: #000000 !important;
}

#studentGrid ::-webkit-scrollbar-thumb,
.ag-body-viewport ::-webkit-scrollbar-thumb {
  background: #2a2a2a !important;
  border-radius: 5px !important;
  border: 2px solid #000000 !important;
}

#studentGrid ::-webkit-scrollbar-thumb:hover,
.ag-body-viewport ::-webkit-scrollbar-thumb:hover {
  background: #444444 !important;
}

#studentGrid .ag-header-cell,
#studentGrid .ag-header-group-cell {
  background-color: #0a0a0a !important;
  color: #aaaaaa !important;
}

#studentGrid .ag-row-hover,
#studentGrid .ag-row-hover .ag-cell {
  background-color: #1c1c1c !important;
}

.clickable-link {
  color: #60a5fa;
  cursor: pointer;
  font-weight: 500;
}

.clickable-link:hover {
  text-decoration: underline;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  z-index: 1000;
  padding: 20px;
}

.hidden {
  display: none !important;
}

.modal-card {
  width: min(600px, 95vw);
  background: #0a0a0a;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9);
}

.modal-close {
  position: absolute;
  right: 16px;
  top: 14px;
  background: transparent;
  font-size: 24px;
  color: var(--text-secondary);
  border: 0;
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.detail {
  padding: 12px;
  background: #000000;
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.detail label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.detail div {
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .analytics-grid { grid-template-columns: 1fr; }
}

@media (max-width: 650px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .details-grid { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 90px 1fr 35px; }
  #studentGrid { height: 520px; }
}