:root {
  --optima-blue: #0f4a4c;
  --optima-stone: #756d6b;
  --ink: #172033;
  --muted: #667085;
  --line: #e7ebf2;
  --soft: #f4f7fb;
}

body {
  background: var(--soft);
  color: var(--ink);
  overflow-x: hidden;
}

.bg-primary,
.btn-primary {
  background-color: var(--optima-blue) !important;
  border-color: var(--optima-blue) !important;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
}

.brand-lockup img {
  width: 155px;
  height: 42px;
  object-fit: contain;
  background: #fff;
  border-radius: 4px;
  padding: .25rem .45rem;
}

.brand-lockup span {
  font-weight: 800;
}

.app-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 260px;
  background: var(--optima-blue);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 1rem;
  z-index: 1030;
  box-shadow: 8px 0 24px rgba(16, 24, 40, 0.10);
}

.sidebar-brand {
  justify-content: center;
  margin-bottom: 1rem;
}

.sidebar-brand img {
  width: 210px;
  height: 82px;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  padding: .35rem;
}

.sidebar-user {
  border-top: 1px solid rgba(255, 255, 255, .18);
  border-bottom: 1px solid rgba(255, 255, 255, .18);
  padding: .85rem .25rem;
  margin-bottom: .75rem;
}

.sidebar-user strong,
.sidebar-user span {
  display: block;
}

.sidebar-user span {
  color: rgba(255, 255, 255, .72);
  font-size: .82rem;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  overflow-y: auto;
  padding-right: .2rem;
}

.nav-group span {
  display: block;
  color: rgba(255, 255, 255, .62);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 .3rem .45rem;
  text-transform: uppercase;
}

.nav-group a {
  align-items: center;
  border-radius: 8px;
  color: #fff;
  display: flex;
  gap: .65rem;
  padding: .58rem .7rem;
  text-decoration: none;
}

.nav-group a:hover {
  background: rgba(255, 255, 255, .12);
}

.sidebar-logout {
  margin-top: auto;
}

.app-main,
.app-footer {
  margin-left: 260px;
}

.app-main {
  width: calc(100% - 260px);
  min-height: calc(100vh - 44px);
  padding-left: clamp(1rem, 3vw, 2.25rem) !important;
  padding-right: clamp(1rem, 3vw, 2.25rem) !important;
}

.app-main > .page-header,
.app-main > .row,
.app-main > .panel,
.app-main > form.panel,
.app-main > .table-responsive.panel,
.app-main > .summary-band,
.app-main > section.panel {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

.app-main > .page-header {
  align-items: center;
}

.app-main > .row {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 1040;
}

.mobile-logo {
  max-width: 190px;
  max-height: 74px;
  object-fit: contain;
}

.mobile-nav .nav-group a,
.mobile-nav .nav-group span {
  color: var(--ink);
}

.mobile-nav .nav-group span {
  color: var(--muted);
}

.mobile-nav .nav-group a:hover {
  background: var(--soft);
}

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

.page-header h1,
.calendar-title {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.panel,
.metric-card,
.calendar-shell,
.login-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.06);
}

.panel {
  padding: 1.25rem;
}

.panel h2 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.metric-card {
  border-left: 5px solid var(--optima-blue);
  padding: 1rem;
  min-height: 112px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: .85rem;
  min-height: 42px;
}

.metric-card strong {
  font-size: 2rem;
  line-height: 1;
}

.event-row {
  display: flex;
  gap: .65rem;
  align-items: flex-start;
  padding: .65rem 0;
  border-bottom: 1px solid var(--line);
}

.event-row small {
  display: block;
  color: var(--muted);
}

.dot {
  display: inline-block;
  width: .75rem;
  height: .75rem;
  border-radius: 50%;
  margin-right: .4rem;
  vertical-align: middle;
  flex: 0 0 auto;
}

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

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

.calendar-shell {
  position: relative;
  padding: 1.35rem 1.35rem 1.75rem;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
}

.calendar-actions {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  display: flex;
  gap: .75rem;
}

.calendar-title {
  text-align: center;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 1.1rem;
}

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}

.filters .btn {
  min-width: 84px;
}

.fc {
  --fc-border-color: #edf1f6;
  --fc-neutral-bg-color: #f3f4f6;
  --fc-today-bg-color: #e7f3ff;
}

.fc .fc-col-header-cell-cushion {
  color: #111827;
  text-decoration: none;
  font-size: .9rem;
  font-weight: 700;
}

.fc .fc-daygrid-day-number {
  color: #0876cf;
  text-decoration: none;
  font-size: .92rem;
  padding: .45rem;
}

.fc .fc-daygrid-day-frame {
  min-height: 98px;
}

.fc-event {
  border: 0;
  border-radius: 0;
  padding: .25rem .35rem;
  font-size: .72rem;
  line-height: 1.15;
  white-space: pre-line;
}

.detail-grid {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: .65rem 1rem;
}

.detail-grid strong {
  color: var(--muted);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #eef5f3, #f7f8fb);
}

.login-panel {
  width: min(480px, calc(100vw - 2rem));
  padding: 2rem;
}

.login-logo {
  display: block;
  width: min(360px, 100%);
  height: auto;
  margin: 0 auto 1.5rem;
}

.login-panel h1 {
  font-weight: 800;
  font-size: 1.8rem;
}

.app-footer {
  color: var(--muted);
  font-size: .85rem;
  padding: 0 1rem 1.25rem;
  text-align: center;
}

.app-footer span {
  color: var(--optima-stone);
}

.attendee-list {
  max-height: 360px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.attendee-item {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: .5rem;
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--line);
}

.attendee-item small {
  color: var(--muted);
}

.summary-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}

.login-panel p {
  color: var(--muted);
}

@media (max-width: 900px) {
  .app-sidebar {
    display: none;
  }

  .app-main,
  .app-footer {
    margin-left: 0;
    width: 100%;
  }

  .app-main {
    padding-top: 4rem !important;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .filters,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .calendar-actions {
    position: static;
    margin-bottom: 1rem;
  }

  .calendar-title {
    text-align: left;
  }

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

@media print {
  @page {
    size: landscape;
    margin: .35in;
  }

  body {
    background: #fff;
  }

  .no-print,
  .navbar,
  .app-sidebar,
  .mobile-menu-toggle,
  .offcanvas,
  .fc .fc-button {
    display: none !important;
  }

  .container-fluid {
    padding: 0 !important;
  }

  .app-main,
  .app-footer {
    margin-left: 0;
  }

  .calendar-shell {
    max-width: none;
    box-shadow: none;
    border: 0;
    padding: 0;
  }

  .calendar-title {
    text-align: center;
    margin-bottom: .5rem;
  }

  .fc .fc-daygrid-day-frame {
    min-height: 88px;
  }

  .fc-event {
    color: #fff !important;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
}