/* ===================================================================
   Windows 11 Fluent Dark Theme - Attendance Tracker Web App
   Clean, modern, matte Zinc/slate styling (non-neon)
   =================================================================== */

:root {
  --bg-app: #121215;
  --bg-sidebar: #18181B;
  --bg-card: #1F1F24;
  --bg-surface: #27272A;
  --bg-surface-hover: #323238;
  --bg-surface-active: #3F3F46;

  --border-subtle: #2D2D35;
  --border-medium: #3F3F46;
  --border-focus: #3B82F6;

  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-tertiary: #6B7280;

  --accent-blue: #3B82F6;
  --accent-blue-hover: #2563EB;
  --accent-emerald: #10B981;
  --accent-emerald-light: #34D399;
  --accent-amber: #F59E0B;
  --accent-amber-light: #FBBF24;
  --accent-red: #EF4444;
  --accent-red-light: #F87171;
  --accent-purple: #A855F7;
  --accent-purple-light: #C084FC;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 14px;
}

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

body {
  font-family: system-ui, -apple-system, "Segoe UI Variable Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-app);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* App Shell Layout */
.app-shell {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 230px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 16px 12px;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 18px 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand-icon {
  font-size: 24px;
}

.brand-title {
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}

.brand-subtitle {
  font-size: 10px;
  color: var(--text-secondary);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 14px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.nav-item:hover {
  background-color: var(--bg-surface);
  color: var(--text-primary);
}

.nav-item.active {
  background-color: var(--bg-surface);
  color: #FFFFFF;
  border-left: 3px solid var(--accent-blue);
  font-weight: 600;
}

.nav-icon {
  font-size: 16px;
}

.nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 8px 4px;
}

.sidebar-footer {
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.footer-status-pill {
  font-size: 10px;
  font-weight: 600;
  color: var(--accent-emerald-light);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 8px;
  border-radius: 12px;
  text-align: center;
  margin-bottom: 6px;
}

.footer-version {
  font-size: 9px;
  color: var(--text-tertiary);
  text-align: center;
}

/* Main Content Area */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  background-color: var(--bg-app);
}

.app-view {
  display: none;
  max-width: 1240px;
  margin: 0 auto;
}

.app-view.active {
  display: block;
}

/* View Header */
.view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.view-title {
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
}

.view-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Badge Pills */
.badge-pill {
  background-color: var(--bg-surface);
  color: #E4E4E7;
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-code {
  background: var(--bg-surface);
  color: #93C5FD;
  border: 1px solid var(--border-medium);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 700;
}

/* Fluent Card */
.fluent-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  margin-bottom: 16px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.card-desc {
  font-size: 11px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* Metric Tag */
.metric-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
}
.tag-blue { background: #1E293B; color: #60A5FA; border: 1px solid #334155; }
.tag-success { background: #142E24; color: #34D399; border: 1px solid #1E4A37; }
.tag-warning { background: #2A2416; color: #FBBF24; border: 1px solid #42351B; }
.tag-danger { background: #2E1919; color: #F87171; border: 1px solid #4D2626; }
.tag-neutral { background: #27272A; color: #D4D4D8; border: 1px solid #3F3F46; }

/* Hero Cards Grid */
.hero-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.hero-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 230px;
}

.ring-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 4px 0;
}

.rates-pill-row {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}

.metric-pill {
  flex: 1;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
}
.pill-gain { background: #142E24; color: #34D399; border: 1px solid #1A4736; }
.pill-loss { background: #2E1919; color: #F87171; border: 1px solid #4D2626; }
.pill-neutral { background: #27272A; color: #D4D4D8; border: 1px solid #3F3F46; }

.hero-large-stat {
  font-size: 28px;
  font-weight: 700;
  color: #FFFFFF;
  margin-top: 4px;
}
.stat-blue { color: #60A5FA; }

.hero-sub-stat {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.sandbox-impact-container {
  margin-bottom: 6px;
}

.caption-text {
  font-size: 11px;
  color: var(--text-secondary);
}

.card-footer-tip {
  font-size: 10px;
  color: var(--text-tertiary);
  margin-top: 10px;
}

.ceiling-stats-table {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
}

.cst-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
}

.cst-label { color: var(--text-secondary); }
.cst-val { color: var(--text-primary); font-weight: 600; }
.text-success { color: var(--accent-emerald-light); font-weight: 700; }

/* Dynamic Target Analyzer Card */
.target-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.tch-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.target-presets {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.target-preset-chip {
  background: var(--bg-surface);
  color: #D4D4D8;
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  font-size: 11px;
  padding: 2px 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.target-preset-chip:hover {
  background: var(--bg-surface-active);
  color: #FFFFFF;
}

.slider-control-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.slider-lbl {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.fluent-range {
  flex: 1;
  height: 6px;
  background: #2D2D35;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.fluent-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--accent-blue);
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  cursor: pointer;
}

.spinbox-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.fluent-spinbox {
  width: 78px;
  background: var(--bg-surface);
  color: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 4px 20px 4px 8px;
  font-size: 12px;
  font-weight: 600;
}

.spin-suffix {
  position: absolute;
  right: 8px;
  font-size: 11px;
  color: var(--text-secondary);
  pointer-events: none;
}

.target-panels-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.target-metric-panel {
  border-radius: var(--radius-md);
  padding: 12px 14px;
}
.panel-safe { background: #17241E; border: 1px solid #234335; }
.panel-danger { background: #271E1E; border: 1px solid #422626; }
.panel-info { background: #162031; border: 1px solid #233857; }

.tmp-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.panel-safe .tmp-title { color: #34D399; }
.panel-danger .tmp-title { color: #F87171; }
.panel-info .tmp-title { color: #60A5FA; }

.tmp-main {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 2px;
}

.tmp-sub {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Smart Bunk Strip */
.bunk-cards-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.bunk-day-card {
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.bunk-day-card.level-safe { background: #17241E; border: 1px solid #234335; }
.bunk-day-card.level-warning { background: #242017; border: 1px solid #3E341F; }
.bunk-day-card.level-danger { background: #271E1E; border: 1px solid #422626; }

.bunk-card-rank {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  width: fit-content;
}
.level-safe .bunk-card-rank { background: #142E24; color: #34D399; }
.level-warning .bunk-card-rank { background: #2A2416; color: #FBBF24; }
.level-danger .bunk-card-rank { background: #2E1919; color: #F87171; }

.bunk-card-day {
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
}

.bunk-card-score {
  font-size: 11px;
  font-weight: 600;
}
.level-safe .bunk-card-score { color: #34D399; }
.level-warning .bunk-card-score { color: #FBBF24; }
.level-danger .bunk-card-score { color: #F87171; }

.bunk-card-bot {
  font-size: 10px;
  color: var(--text-secondary);
  line-height: 1.2;
}

/* Subjects Section */
.subjects-section {
  margin-top: 20px;
}

.section-head-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}

.section-heading {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.subject-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sc-pct {
  font-size: 16px;
  font-weight: 700;
}

.sc-name {
  font-size: 12px;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sc-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
}

.sc-sessions {
  font-weight: 600;
  color: #E5E7EB;
}

.sc-progress-track {
  height: 5px;
  background-color: #2D2D35;
  border-radius: 2px;
  overflow: hidden;
}

.sc-progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s ease;
}

.sc-guardrail {
  font-size: 10px;
  font-weight: 600;
}

.sc-target-ceil {
  font-size: 10px;
  color: var(--text-secondary);
}

/* ================= CALENDAR VIEW ================= */
.calendar-layout {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.calendar-card {
  flex: 65;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
}

.calendar-header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.calendar-month-title {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
}

.month-chips-group {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.chip-btn {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  font-size: 11px;
  padding: 3px 9px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip-btn:hover {
  background: var(--bg-surface-active);
  color: #FFFFFF;
}

.chip-btn.active {
  background: var(--accent-blue);
  color: #FFFFFF;
  border-color: var(--accent-blue);
  font-weight: 600;
}

.calendar-weekdays-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  margin-bottom: 6px;
}

.cal-weekday-lbl {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 4px 0;
}

.calendar-days-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 5px;
}

.cal-day-cell {
  min-height: 64px;
  border-radius: var(--radius-md);
  padding: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid transparent;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.cal-day-cell.other-month {
  background: #18181C !important;
  border-color: #222228 !important;
  cursor: pointer;
}
.cal-day-cell.other-month .cell-num {
  color: #4B5563;
}

.cal-day-cell.today {
  border-color: var(--accent-amber) !important;
}

.cal-day-cell.selected {
  border-color: var(--accent-blue) !important;
  background-color: #1E293B !important;
}

.cal-day-cell:hover {
  border-color: #60A5FA !important;
}

.cell-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cell-num {
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
}

.cell-badge {
  font-size: 8px;
  font-weight: 600;
  padding: 1px 4px;
  border-radius: 3px;
}

.cell-detail {
  font-size: 9px;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calendar-legend-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: var(--text-secondary);
}

.legend-item .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}

/* Drawer Card */
.drawer-card {
  flex: 35;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 320px;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.drawer-date-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.drawer-sub-info {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.status-pill {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
}

.drawer-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  color: #D4D4D8;
}

.drawer-quick-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.status-btn {
  font-size: 11px !important;
  padding: 6px 8px !important;
  text-align: center;
}

.checklist-section {
  flex: 1;
}

.checklist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.period-checklist-scroll {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: #18181C;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.period-check-item {
  background: #222228;
  border-radius: 4px;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.fluent-checkbox {
  width: 15px;
  height: 15px;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

.period-meta {
  flex: 1;
}

.p-time {
  font-size: 9px;
  color: var(--text-secondary);
}

.p-sub {
  font-size: 11px;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 4px;
}

.drawer-footer {
  margin-top: 4px;
}

/* ================= SETTINGS VIEW ================= */
.settings-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.actions-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.right-align {
  justify-content: flex-end;
  margin-top: 10px;
}

.calc-mode-select-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.fluent-select {
  background: var(--bg-surface);
  color: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  font-size: 12px;
  outline: none;
  min-width: 320px;
}

.mode-info-box {
  background: var(--bg-surface);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-md);
  padding: 8px 12px;
}

.mode-info-title {
  font-size: 12px;
  font-weight: 700;
  color: #93C5FD;
  margin-bottom: 2px;
}

.mode-info-text {
  font-size: 11px;
  color: #D4D4D8;
}

/* Manual Attendance Table */
.manual-summary-strip {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  display: flex;
  gap: 16px;
  font-size: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

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

.fluent-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.fluent-table th {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-weight: 700;
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid var(--border-medium);
}

.fluent-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.tbl-sub-name {
  max-width: 200px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fluent-num-input {
  background: var(--bg-surface);
  color: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: 4px;
  padding: 3px 6px;
  font-size: 11px;
  width: 70px;
}

/* JUNO Portal Sync Box */
.fluent-textarea {
  width: 100%;
  height: 110px;
  background-color: #18181C;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  font-family: "Consolas", monospace;
  font-size: 11px;
  color: #E5E7EB;
  resize: vertical;
  margin-bottom: 10px;
  outline: none;
}
.fluent-textarea:focus {
  border-color: var(--accent-blue);
}

.portal-preview-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-top: 14px;
}

/* General Preferences */
.preferences-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.pref-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.field-lbl {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.fluent-input {
  background: var(--bg-surface);
  color: #FFFFFF;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 5px 10px;
  font-size: 12px;
  outline: none;
}
.fluent-input:focus {
  border-color: var(--accent-blue);
}

.sim-date-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Switch */
.fluent-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}
.fluent-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #3F3F46;
  transition: 0.2s;
  border-radius: 20px;
}
.switch-slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.2s;
  border-radius: 50%;
}
.fluent-switch input:checked + .switch-slider {
  background-color: var(--accent-blue);
}
.fluent-switch input:checked + .switch-slider:before {
  transform: translateX(16px);
}

/* Danger Zone */
.danger-zone {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-top: 14px;
  flex-wrap: wrap;
  gap: 10px;
}
.dz-title { font-size: 12px; font-weight: 700; color: #F87171; }
.dz-desc { font-size: 10px; color: #FCA5A5; }

/* Buttons */
.fluent-btn {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fluent-btn:hover:not(:disabled) {
  background-color: var(--bg-surface-active);
  color: #FFFFFF;
}
.fluent-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.primary-btn {
  background-color: var(--accent-blue-hover);
  color: #FFFFFF;
  border-color: #1D4ED8;
  font-weight: 600;
}
.primary-btn:hover:not(:disabled) {
  background-color: #1D4ED8;
}

.subtle-btn {
  background-color: transparent;
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}
.subtle-btn:hover:not(:disabled) {
  background-color: var(--bg-surface);
  color: #FFFFFF;
}

.danger-btn {
  background-color: #7F1D1D;
  color: #FFFFFF;
  border-color: #991B1B;
}
.danger-btn:hover:not(:disabled) {
  background-color: #991B1B;
}

.compact-btn { padding: 4px 10px; font-size: 11px; }
.tiny-btn { padding: 2px 7px; font-size: 10px; }
.block-btn { width: 100%; justify-content: center; }
.icon-btn { padding: 4px 8px; }

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}

.fluent-toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 380px;
  background: #202028;
  border: 1px solid var(--border-medium);
  border-left: 4px solid var(--accent-blue);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  animation: slideIn 0.2s ease forwards;
  transition: opacity 0.3s ease;
}

.toast-success { border-left-color: var(--accent-emerald); }
.toast-danger { border-left-color: var(--accent-red); }
.toast-warning { border-left-color: var(--accent-amber); }
.toast-info { border-left-color: var(--accent-blue); }

.toast-content { flex: 1; }
.toast-title { font-size: 12px; font-weight: 700; color: #FFFFFF; margin-bottom: 2px; }
.toast-msg { font-size: 11px; color: var(--text-secondary); line-height: 1.3; }

.toast-close-btn {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 16px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.toast-close-btn:hover { color: #FFFFFF; }

.fluent-toast.fade-out {
  opacity: 0;
}

@keyframes slideIn {
  from { transform: translateX(30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===================================================================
   User Account Widget, Sync Badges & Modal Dialog
   =================================================================== */

.sidebar-user-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  margin: 12px 0 6px 0;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.15s ease;
}
.sidebar-user-card:hover {
  background: var(--bg-surface);
  border-color: var(--border-medium);
}

.user-avatar-box {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: #2D2D36;
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  flex-shrink: 0;
}

.user-info-text {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 12px;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-status-row {
  margin-top: 2px;
}

.user-card-arrow {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* Cloud Sync Indicators */
.cloud-sync-indicator {
  font-size: 9px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 10px;
  display: inline-block;
  line-height: 1.2;
}

.sync-cloud {
  background: rgba(16, 185, 129, 0.15);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.sync-local {
  background: rgba(156, 163, 175, 0.15);
  color: #D1D5DB;
  border: 1px solid rgba(156, 163, 175, 0.25);
}

.sync-active {
  background: rgba(59, 130, 246, 0.15);
  color: #60A5FA;
  border: 1px solid rgba(59, 130, 246, 0.3);
  animation: pulseSync 1s infinite alternate;
}

@keyframes pulseSync {
  from { opacity: 0.6; }
  to { opacity: 1; }
}

/* Mobile Top Header Bar */
.mobile-top-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 900;
}

.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-brand-title {
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  display: block;
  line-height: 1.1;
}

.mobile-brand-subtitle {
  font-size: 9px;
  color: var(--text-secondary);
  display: block;
}

.mobile-user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 4px 8px;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 11px;
}

.user-avatar-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #3B82F6;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
}

.mobile-user-name {
  max-width: 90px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(24, 24, 27, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-subtle);
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  align-items: center;
  justify-content: space-around;
}

.mobile-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 100%;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
}

.mobile-nav-item:active {
  transform: scale(0.96);
}

.mobile-nav-item.active {
  color: #3B82F6;
}

.mobile-nav-item.active::after {
  content: "";
  position: absolute;
  top: 0;
  left: 30%;
  right: 30%;
  height: 3px;
  background: #3B82F6;
  border-radius: 0 0 3px 3px;
}

.mobile-nav-icon {
  font-size: 18px;
  line-height: 1;
}

.mobile-nav-lbl {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

/* Fluent Account Modal */
.fluent-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: modalFadeIn 0.2s ease forwards;
}

.fluent-modal-card {
  width: 100%;
  max-width: 440px;
  background: #1C1C22;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
  padding: 22px;
  animation: modalScaleUp 0.2s ease forwards;
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalScaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-icon-badge {
  font-size: 22px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
}

.modal-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 20px;
  cursor: pointer;
  padding: 0 4px;
}
.modal-close-btn:hover { color: #FFFFFF; }

.modal-tabs {
  display: flex;
  gap: 6px;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}

.modal-tab-btn {
  flex: 1;
  padding: 7px 10px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.modal-tab-btn.active {
  background: #3B82F6;
  color: #FFFFFF;
}

.modal-tab-content {
  display: none;
}
.modal-tab-content.active {
  display: block;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-actions {
  margin-top: 6px;
}

.form-footer-tip {
  font-size: 11px;
  color: var(--text-tertiary);
  text-align: center;
  margin-top: 10px;
}

.form-footer-tip a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 600;
}
.form-footer-tip a:hover {
  text-decoration: underline;
}

/* Profile Card in Modal */
.profile-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.profile-avatar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.profile-big-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #3B82F6;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
}

.profile-name {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.profile-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

.profile-status-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ps-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}

.ps-label {
  color: var(--text-secondary);
}

.ps-val {
  font-weight: 600;
  color: #F3F4F6;
}

.profile-actions-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-footer-info {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  font-size: 10px;
  color: var(--text-tertiary);
  line-height: 1.4;
}

/* ===================================================================
   Responsive Mobile & Tablet Rules
   =================================================================== */

@media (max-width: 1024px) {
  .hero-cards-grid {
    grid-template-columns: 1fr;
  }
  .bunk-cards-strip {
    grid-template-columns: repeat(3, 1fr);
  }
  .calendar-layout {
    flex-direction: column;
  }
  .drawer-card {
    width: 100%;
  }
}

@media (max-width: 768px) {
  html, body {
    height: 100%;
    overscroll-behavior-y: none;
  }

  .app-shell {
    height: 100dvh;
    flex-direction: column;
    overflow: hidden;
  }

  /* Replace heavy desktop sidebar with top & bottom app navigation */
  .sidebar {
    display: none !important;
  }

  .mobile-top-bar {
    display: flex;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .main-content {
    padding: 14px 14px 80px 14px;
    height: calc(100dvh - 50px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .view-header {
    margin-bottom: 14px;
    gap: 8px;
  }

  .view-title {
    font-size: 18px;
  }

  .view-subtitle {
    font-size: 11px;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .badge-pill {
    font-size: 10px;
  }

  /* Cards */
  .fluent-card {
    padding: 14px;
    border-radius: var(--radius-lg);
  }

  .hero-cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .target-panels-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .bunk-cards-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  /* Target Presets Horizontal Touch Scroll */
  .target-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .target-presets {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
  }

  .target-presets::-webkit-scrollbar {
    display: none;
  }

  .slider-control-row {
    flex-wrap: wrap;
    gap: 8px;
  }

  .fluent-range {
    min-width: 140px;
  }

  /* Calendar Responsive */
  .calendar-card {
    padding: 12px;
  }

  .calendar-header-nav {
    flex-wrap: wrap;
    gap: 8px;
  }

  .month-chips-group {
    overflow-x: auto;
    width: 100%;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .cal-day-cell {
    min-height: 52px;
    padding: 4px;
  }

  .cell-num {
    font-size: 11px;
  }

  .cell-badge {
    font-size: 8px;
    padding: 1px 3px;
  }

  .cell-detail {
    font-size: 9px;
  }

  .calendar-legend-bar {
    gap: 8px;
    font-size: 10px;
  }

  /* Tables */
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
  }

  .fluent-table th, .fluent-table td {
    padding: 8px 10px;
    font-size: 12px;
    white-space: nowrap;
  }

  .actions-row {
    flex-wrap: wrap;
    gap: 8px;
  }

  .preferences-grid {
    grid-template-columns: 1fr;
  }

  /* Forms & Inputs iOS zoom prevention (font-size >= 16px) */
  .fluent-input, .fluent-select, .fluent-spinbox, .fluent-textarea {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .bunk-cards-strip {
    grid-template-columns: 1fr 1fr;
  }

  .hero-large-stat {
    font-size: 26px;
  }

  .cal-weekday-lbl {
    font-size: 10px;
  }

  .fluent-modal-card {
    padding: 16px;
  }
}