:root {
  color-scheme: dark;
  --bg: #0b1220;
  --bg-elevated: #111a2c;
  --bg-subtle: #0f1726;
  --surface: #141f33;
  --surface-2: #182437;
  --border: #26334a;
  --border-strong: #31415f;
  --text: #e6edf7;
  --muted: #9fb0c6;
  --muted-2: #7e91ab;
  --primary: #7cc4ff;
  --primary-strong: #4ca7ff;
  --success: #4fd39d;
  --warning: #f1c76d;
  --danger: #f36f78;
  --info: #7f9cff;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  --radius: 14px;
  --radius-sm: 10px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --nav-width: 272px;
  --max-content: 1400px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

body {
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

img {
  max-width: 100%;
  display: block;
}

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

.fine-print {
  font-size: 0.88rem;
}

.eyebrow {
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--muted-2);
}

.stack {
  display: flex;
  flex-direction: column;
}

.row {
  display: flex;
  align-items: center;
}

.wrap {
  flex-wrap: wrap;
}

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

.auth-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(124, 196, 255, 0.08), transparent 26%),
    radial-gradient(circle at 80% 20%, rgba(79, 211, 157, 0.07), transparent 18%),
    var(--bg);
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
}

.auth-card {
  width: min(100%, 520px);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(180deg, rgba(20, 31, 51, 0.98), rgba(16, 24, 41, 0.98));
  box-shadow: var(--shadow);
  padding: var(--space-8);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field > span {
  font-size: 0.9rem;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--text);
  padding: 0.8rem 0.95rem;
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted-2);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 196, 255, 0.14);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.btn {
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.78rem 1rem;
  cursor: pointer;
  transition: transform 0.12s ease, border-color 0.12s ease, background 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--primary-strong);
  color: #06101f;
  font-weight: 650;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-danger {
  background: rgba(243, 111, 120, 0.12);
  color: #ffb3b8;
  border-color: rgba(243, 111, 120, 0.28);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-info {
  background: rgba(127, 156, 255, 0.12);
  color: #c9d6ff;
  border-color: rgba(127, 156, 255, 0.22);
}

.badge-success {
  background: rgba(79, 211, 157, 0.12);
  color: #b8f5de;
  border-color: rgba(79, 211, 157, 0.22);
}

.badge-warning {
  background: rgba(241, 199, 109, 0.12);
  color: #f8e3ad;
  border-color: rgba(241, 199, 109, 0.22);
}

.badge-danger {
  background: rgba(243, 111, 120, 0.12);
  color: #ffc1c6;
  border-color: rgba(243, 111, 120, 0.22);
}

.badge-neutral {
  background: rgba(159, 176, 198, 0.12);
  color: #d6deea;
  border-color: rgba(159, 176, 198, 0.18);
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(20, 31, 51, 0.92), rgba(16, 24, 41, 0.92));
  box-shadow: var(--shadow);
}

.card-body {
  padding: var(--space-5);
}

.card-header {
  padding: var(--space-5);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-4);
}

.stat {
  padding: var(--space-5);
}

.stat-value {
  margin: var(--space-1) 0 0;
  font-size: clamp(1.7rem, 2vw, 2.4rem);
  line-height: 1;
  font-weight: 750;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--nav-width) minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  min-height: 100vh;
  border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(10, 16, 29, 0.98), rgba(12, 19, 33, 0.96));
  padding: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(124, 196, 255, 0.28), rgba(76, 167, 255, 0.18));
  border: 1px solid rgba(124, 196, 255, 0.28);
}

.brand-title {
  font-weight: 700;
  margin: 0;
}

.brand-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.nav {
  display: grid;
  gap: var(--space-2);
}

.nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  border: 1px solid transparent;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.nav a.active {
  color: var(--text);
  border-color: rgba(124, 196, 255, 0.24);
  background: rgba(124, 196, 255, 0.08);
}

.workspace {
  min-width: 0;
  padding: var(--space-6);
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.topbar h1 {
  margin: 0;
  font-size: clamp(1.6rem, 2vw, 2.2rem);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.content {
  display: grid;
  gap: var(--space-5);
  max-width: var(--max-content);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.section-title {
  margin: 0;
  font-size: 1.05rem;
}

.table-wrap {
  overflow: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(16, 24, 41, 0.84);
}

th,
td {
  text-align: left;
  vertical-align: middle;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(38, 51, 74, 0.7);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
  background: rgba(12, 19, 33, 0.96);
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.025);
}

.kanban {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.kanban-column {
  display: grid;
  gap: var(--space-3);
}

.kanban-column h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.task-card,
.meeting-card,
.slot-card,
.announcement-card,
.profile-card {
  padding: var(--space-4);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(16, 24, 41, 0.88);
}

.task-card {
  display: grid;
  gap: var(--space-3);
}

.task-meta,
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  color: var(--muted);
  font-size: 0.86rem;
}

.task-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.timeline {
  display: grid;
  gap: var(--space-3);
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(16, 24, 41, 0.88);
}

.calendar {
  display: grid;
  gap: var(--space-3);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
  overflow: hidden;
  border-radius: var(--radius);
}

.calendar-day,
.calendar-head {
  min-height: 112px;
  background: rgba(16, 24, 41, 0.94);
  padding: var(--space-3);
}

.calendar-head {
  min-height: auto;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.calendar-day.muted {
  color: var(--muted-2);
}

.calendar-day strong {
  display: block;
  margin-bottom: var(--space-2);
}

.day-event {
  display: block;
  margin-top: var(--space-1);
  padding: 0.3rem 0.45rem;
  border-radius: 8px;
  background: rgba(124, 196, 255, 0.12);
  color: #d8ecff;
  font-size: 0.78rem;
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-5);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.progress {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.progress > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--success));
}

.empty-state {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: var(--space-8);
  text-align: center;
  color: var(--muted);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 10, 18, 0.7);
  display: grid;
  place-items: center;
  z-index: 30;
  padding: var(--space-4);
}

.modal {
  width: min(100%, 760px);
  max-height: min(88vh, 920px);
  overflow: auto;
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.modal-body {
  padding: var(--space-5);
}

.tabs {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.tabs button {
  border-radius: 999px;
  padding: 0.6rem 0.95rem;
  border: 0;
  color: var(--muted);
  background: transparent;
}

.tabs button.active {
  color: var(--text);
  background: rgba(124, 196, 255, 0.12);
}

.notification-bell {
  position: relative;
}

.notification-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: min(360px, 88vw);
  max-height: 440px;
  overflow: auto;
  padding: var(--space-3);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  z-index: 40;
}

.notification-item {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.notification-item.unread {
  background: rgba(124, 196, 255, 0.08);
  border-color: rgba(124, 196, 255, 0.16);
}

.notification-item + .notification-item {
  margin-top: var(--space-2);
}

.chart-bar {
  display: grid;
  gap: 0.45rem;
}

.chart-bar > span {
  height: 10px;
  border-radius: 999px;
  background: var(--primary);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 1200px) {
  .stat-grid,
  .grid-4,
  .kanban {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .stat-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .kanban,
  .timeline-item {
    grid-template-columns: 1fr;
  }
}

.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.9375rem;
}

.alert-info {
  border-color: rgba(124, 196, 255, 0.4);
  background: rgba(124, 196, 255, 0.1);
  color: var(--text);
}

.alert-danger {
  border-color: rgba(243, 111, 120, 0.4);
  background: rgba(243, 111, 120, 0.12);
  color: #ffc1c6;
}

.auth-tabs {
  display: flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
  margin-bottom: var(--space-4);
}

.auth-tab {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.auth-tab:hover {
  color: var(--text);
}

.auth-tab.active {
  background: var(--bg-elevated);
  color: var(--text);
  font-weight: 600;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}