/* MSSDS Portal - Design System */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --font-sans: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --color-bg: #0f0f12;
  --color-bg-elevated: #18181c;
  --color-bg-card: #1e1e24;
  --color-border: #2a2a32;
  --color-text: #e4e4e7;
  --color-text-muted: #a1a1aa;
  --color-primary: #22d3ee;
  --color-primary-hover: #67e8f9;
  --color-accent: #f472b6;
  --color-success: #34d399;
  --color-error: #f87171;
  --color-warning: #fbbf24;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
  --transition: 0.2s ease;
}

/* Light theme */
html[data-theme="light"] {
  --color-bg: #f8fafc;
  --color-bg-elevated: #ffffff;
  --color-bg-card: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-primary: #0891b2;
  --color-primary-hover: #0e7490;
  --color-accent: #db2777;
  --color-success: #059669;
  --color-error: #dc2626;
  --color-warning: #d97706;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
}

html[data-theme="light"] body::before {
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(8, 145, 178, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(219, 39, 119, 0.05), transparent),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(8, 145, 178, 0.04), transparent);
}

html[data-theme="light"] .btn--ghost:hover {
  background: rgba(0, 0, 0, 0.05);
}

html[data-theme="light"] .data-table tbody tr:hover {
  background: rgba(0, 0, 0, 0.03);
}

html[data-theme="light"] .attendance-table tbody tr:hover td:nth-child(1),
html[data-theme="light"] .attendance-table tbody tr:hover td:nth-child(2),
html[data-theme="light"] .attendance-table tbody tr:hover td:nth-child(3) {
  background: rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(244, 114, 182, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(34, 211, 238, 0.06), transparent);
  pointer-events: none;
  z-index: 0;
}

/* Layout */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Messages & notifications */
.messages,
.notification-auto-dismiss {
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.notification-auto-dismiss.notification-fade-out {
  opacity: 0;
  transform: translateY(-8px);
}

.messages {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: 480px;
  margin-inline: auto;
  padding: 1rem;
}

.messages li {
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.messages .success {
  background: rgba(52, 211, 153, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.messages .error {
  background: rgba(248, 113, 113, 0.15);
  color: var(--color-error);
  border: 1px solid rgba(248, 113, 113, 0.3);
}

.messages .warning {
  background: rgba(251, 191, 36, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

/* Cards */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.card--login {
  width: 100%;
  max-width: 400px;
}

.card--dashboard {
  width: 100%;
  max-width: 100%;
}

/* Form elements */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group:last-of-type {
  margin-bottom: 1.5rem;
}

.form-row--single .form-group:last-of-type {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
}

.form-input[readonly] {
  opacity: 0.8;
  cursor: default;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.35);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
}

.btn--ghost:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.btn--logout {
  color: var(--color-text);
  font-weight: 600;
  gap: 0.5rem;
}

.btn--logout:hover {
  color: var(--color-primary);
}

.btn-icon {
  flex-shrink: 0;
}

/* Error list */
.errorlist {
  list-style: none;
  padding: 0;
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--color-error);
}

/* Login page */
.login-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.login-page .card {
  animation: cardFadeIn 0.5s ease;
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-brand {
  text-align: center;
  margin-bottom: 2rem;
}

.login-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.login-brand p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Dashboard page */
.dashboard-page {
  flex: 1;
  padding: 2rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.dashboard-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.dashboard-header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn--theme-toggle {
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  line-height: 1;
}

.btn--theme-toggle .theme-icon--light {
  display: none;
}

html[data-theme="light"] .btn--theme-toggle .theme-icon--dark {
  display: none;
}

html[data-theme="light"] .btn--theme-toggle .theme-icon--light {
  display: inline;
}

.btn--theme-toggle-fixed {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  font-size: 1.25rem;
  line-height: 1;
}

.dashboard-success {
  padding: 0.875rem 1rem;
  background: rgba(52, 211, 153, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

/* Form layout */
.form-row {
  display: grid;
  gap: 1rem;
}

@media (min-width: 480px) {
  .form-row--two {
    grid-template-columns: 1fr 1fr;
  }
}

/* Single-row form layout */
.form-row--single {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
}

.form-group--inline {
  margin-bottom: 0;
  flex: 0 0 auto;
}

.form-group--inline.form-group--submit {
  flex-shrink: 0;
}

.form-row--single .form-group--inline:first-child {
  min-width: 100px;
}

.form-row--single .form-group--inline.batch-search-wrapper {
  min-width: 320px;
  flex: 1 1 320px;
}

.form-row--single .form-group--inline.form-group--date {
  min-width: 130px;
}

.form-label--hidden {
  display: block;
  visibility: hidden;
  height: 0;
  min-height: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  line-height: 0;
  font-size: 0;
}

/* Align submit button with inputs - spacer matches form-label (0.8rem * 1.2 + 0.5rem margin) */
.form-group--submit .form-label--hidden {
  min-height: 0.96rem;
  margin-bottom: 0.5rem;
  line-height: 1.2;
  font-size: 0.8rem;
}

.form-actions {
  margin-top: 1.5rem;
}

/* Searchable batch dropdown */
.batch-search-wrapper {
  position: relative;
}

.batch-select-container {
  position: absolute;
  left: -9999px;
  width: 0;
  height: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.batch-search-dropdown {
  position: relative;
  min-height: 44px;
}

.batch-search-closed {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition);
}

.batch-search-closed:hover {
  border-color: var(--color-text-muted);
}

.batch-search-arrow {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-left: 0.5rem;
}

.batch-search-panel {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  overflow: hidden;
}

.batch-search-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: none;
  border-bottom: 1px solid var(--color-border);
  outline: none;
}

.batch-search-input::placeholder {
  color: var(--color-text-muted);
}

.batch-search-list {
  max-height: 200px;
  overflow-y: auto;
  list-style: none;
  padding: 0.25rem 0;
  margin: 0;
}

.batch-search-list li {
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: background var(--transition);
}

.batch-search-list li[data-value]:hover {
  background: rgba(34, 211, 238, 0.15);
}

.batch-search-list .batch-search-empty {
  color: var(--color-text-muted);
  cursor: default;
  font-size: 0.9rem;
}

/* Flatpickr calendar - match dark theme */
.flatpickr-calendar {
  background: var(--color-bg-card) !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-lg) !important;
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
  background: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
}

.flatpickr-day:hover {
  background: rgba(34, 211, 238, 0.2) !important;
  border-color: rgba(34, 211, 238, 0.3) !important;
}

.flatpickr-day.today {
  border-color: var(--color-primary) !important;
}

.flatpickr-months .flatpickr-month {
  background: var(--color-bg-elevated) !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months,
.flatpickr-current-month .numInputWrapper {
  color: var(--color-text) !important;
}

.flatpickr-weekdays span {
  color: var(--color-text-muted) !important;
}

.flatpickr-day {
  color: var(--color-text) !important;
}

.flatpickr-day.flatpickr-disabled {
  color: var(--color-text-muted) !important;
  opacity: 0.5;
}

.flatpickr-prev-month svg,
.flatpickr-next-month svg {
  fill: var(--color-text-muted) !important;
}

.flatpickr-prev-month:hover svg,
.flatpickr-next-month:hover svg {
  fill: var(--color-primary) !important;
}

/* Results section - Batch Session Count */
.card--results {
  max-width: 100%;
  margin-top: 2rem;
}

.results-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.results-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.results-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.rows-per-page-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.rows-per-page-select {
  width: auto;
  min-width: 70px;
  padding: 0.5rem 0.75rem;
}

.btn--secondary {
  background: var(--color-bg-elevated);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn--secondary:hover {
  background: rgba(34, 211, 238, 0.15);
}

.btn--attendance {
  white-space: nowrap;
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

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

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.table-loading,
.table-empty,
.table-error {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem !important;
}

.table-error {
  color: var(--color-error);
}

.column-filter {
  width: 100%;
  max-width: 120px;
  margin-top: 0.25rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.8rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

.column-filter::placeholder {
  color: var(--color-text-muted);
}

.column-filter:focus {
  outline: none;
  border-color: var(--color-primary);
}

.table-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.pagination {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pagination-btn {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
}

.pagination-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-info {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Modal overlay - hidden state */
.modal-overlay[hidden],
#attendance-modal[hidden],
#results-section[hidden] {
  display: none !important;
}

/* Attendance modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
  overflow-y: auto;
}

.modal-overlay .modal {
  max-width: 95vw;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-body {
  overflow-y: auto;
  flex: 1;
}

.modal-dates {
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.modal-table-wrapper {
  max-height: 60vh;
  overflow-x: auto;
  overflow-y: auto;
}

/* Attendance table - present/absent indicators */
.attendance-cell.present {
  color: var(--color-success);
  font-weight: 600;
  text-align: center;
}

.attendance-cell.absent {
  color: var(--color-error);
  font-weight: 600;
  text-align: center;
}

.attendance-table th,
.attendance-table td {
  white-space: nowrap;
  min-width: 2rem;
}

.attendance-table th:nth-child(1),
.attendance-table td:nth-child(1) { min-width: 2.5rem; }
.attendance-table th:nth-child(2),
.attendance-table td:nth-child(2) { min-width: 10rem; }
.attendance-table th:nth-child(3),
.attendance-table td:nth-child(3) { min-width: 5rem; }

/* Sticky columns for attendance table - #, Candidate Name, Attended Sessions */
.attendance-table th:nth-child(1),
.attendance-table td:nth-child(1) {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--color-bg-elevated);
  box-shadow: 2px 0 4px rgba(0, 0, 0, 0.2);
}

.attendance-table th:nth-child(2),
.attendance-table td:nth-child(2) {
  position: sticky;
  left: 3rem;
  z-index: 2;
  background: var(--color-bg-elevated);
  box-shadow: 2px 0 4px rgba(0, 0, 0, 0.2);
}

.attendance-table th:nth-child(3),
.attendance-table td:nth-child(3) {
  position: sticky;
  left: 13rem;
  z-index: 2;
  background: var(--color-bg-elevated);
  box-shadow: 2px 0 4px rgba(0, 0, 0, 0.2);
}

.attendance-table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--color-bg-elevated);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.attendance-table thead th:nth-child(1),
.attendance-table thead th:nth-child(2),
.attendance-table thead th:nth-child(3) {
  z-index: 4;
}

.attendance-table tbody tr:hover td:nth-child(1),
.attendance-table tbody tr:hover td:nth-child(2),
.attendance-table tbody tr:hover td:nth-child(3) {
  background: rgba(255, 255, 255, 0.05);
}