/* Login Layout */
#login {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
}

.lb {
  background: var(--card-bg);
  border: 1px solid var(--bd);
  border-radius: var(--radius-2xl);
  padding: 32px;
  width: min(840px, 100%);
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 32px;
  position: relative;
}

/* App Layout & Sidebar */
#app {
  display: flex;
  min-height: 100vh;
}

#side {
  width: 252px;
  background: var(--card-bg);
  border-right: 1px solid var(--bd);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  transition: var(--theme-transition);
}

#side .brand {
  padding: 0 8px 20px;
}

.nv {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--mu);
  margin-bottom: 2px;
  transition: background-color 0.15s ease, color 0.15s ease;
  font-size: 13.5px;
  font-weight: 500;
}

.nv:hover {
  background: var(--seg-bg);
  color: var(--tx);
}

.nv.on {
  background: var(--as);
  color: var(--ac);
  font-weight: 600;
}

.nv svg {
  flex-shrink: 0;
}

.me {
  margin-top: auto;
  border-top: 1px solid var(--bd);
  padding-top: 14px;
}

.side-deploy {
  padding: 0 8px 8px;
}

.deployment-label {
  font-size: 11px;
  color: var(--mu);
  padding-left: 2px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.side-deploy .seg {
  margin: 7px 0 10px;
}

.side-deploy .seg span {
  white-space: nowrap;
  padding: 7px 3px;
  font-size: 11px;
}

.who {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px;
}

.who a {
  color: var(--mu);
  font-size: 12px;
  cursor: pointer;
  text-decoration: underline;
}

.who a:hover {
  color: var(--tx);
}

/* Main Content Area */
#main {
  flex: 1;
  min-width: 0;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 36px 0;
  flex-wrap: wrap;
}

.top-left {
  min-width: 180px;
}

.top-left h1 {
  margin: 0;
  font-size: 23px;
  font-weight: 700;
  color: var(--tx);
  display: flex;
  align-items: center;
}

.top-left small {
  color: var(--mu);
  font-size: 12.5px;
}

.top-center {
  flex: 1;
  max-width: 380px;
  min-width: 220px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.scope-line {
  display: block;
  color: var(--mu);
  font-size: 12px;
  margin-top: 2px;
}

#view {
  padding: 22px 36px 8px;
}

.note {
  color: var(--mu);
  font-size: 12px;
  padding: 0 36px 20px;
  text-align: right;
}

/* Grids & Forms */
.grid {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.grid > .card {
  margin-bottom: 0;
}

.g4 {
  grid-template-columns: repeat(4, 1fr);
}

.g3 {
  grid-template-columns: repeat(3, 1fr);
}

.g2 {
  grid-template-columns: 1fr 1fr;
}

.g21 {
  grid-template-columns: 2fr 1fr;
}

.f {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}

.full {
  grid-column: 1 / 3;
  margin-top: 20px;
}

/* Mobile Drawer & Backdrop */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--seg-bg);
  border: 1px solid var(--bd);
  color: var(--tx);
  cursor: pointer;
  margin-right: 10px;
  flex-shrink: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.mobile-menu-btn:hover {
  background: var(--as);
  border-color: var(--ac);
  color: var(--ac);
}

.side-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(2px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.side-backdrop.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

/* Tablet & Mobile Breakpoints */
@media (max-width: 900px) {
  .mobile-menu-btn {
    display: inline-flex;
  }

  #side {
    position: fixed;
    top: 0;
    left: -300px;
    bottom: 0;
    width: 275px;
    height: 100vh;
    z-index: 999;
    box-shadow: var(--shadow-lg);
    transition: left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  #side.open {
    left: 0;
  }

  .g4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .g3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .g2, .g21, .f, .lb {
    grid-template-columns: 1fr;
  }

  #view, .top {
    padding-left: 18px;
    padding-right: 18px;
  }

  .top {
    padding-top: 14px;
    gap: 12px;
  }

  .top-left {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 8px;
  }

  .top-left h1 {
    font-size: 20px;
  }

  .top-center {
    order: 3;
    max-width: 100%;
    width: 100%;
  }

  .top-actions {
    margin-left: auto;
  }

  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 600px) {
  .g4, .g3 {
    grid-template-columns: 1fr;
  }

  .lb {
    padding: 20px 16px;
    border-radius: var(--radius-xl);
  }

  .top-left h1 {
    font-size: 18px;
  }

  .chip {
    margin-left: 4px;
    font-size: 11px;
    padding: 2px 7px;
  }

  #view {
    padding: 16px 14px;
  }

  .top {
    padding-left: 14px;
    padding-right: 14px;
  }

  .note {
    padding-left: 14px;
    padding-right: 14px;
    text-align: center;
  }

  .card {
    padding: 14px 12px;
    border-radius: var(--radius-lg);
  }

  .f {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .f > div {
    margin-bottom: 12px;
  }

  .full {
    margin-top: 12px;
  }

  .seg {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    scrollbar-width: thin;
  }

  .seg span {
    flex-shrink: 0;
  }

  .cal-cell {
    min-height: 68px;
    padding: 4px;
  }

  .cal-date-num {
    font-size: 11.5px;
  }

  .cal-event-tag {
    font-size: 9.5px;
    padding: 1px 4px;
  }

  .cal-slot-info {
    font-size: 9.5px;
  }

  .top-actions .icon-btn {
    width: 34px;
    height: 34px;
  }
}

/* Settings & Preferences Components */
.theme-swatches {
  display: flex;
  gap: 6px;
  align-items: center;
}

.theme-swatch {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.theme-swatch:hover {
  transform: scale(1.15);
}

.theme-swatch.active {
  border-color: var(--tx);
  box-shadow: 0 0 0 2px var(--card-bg);
}

.swatch-azure { background: #009EF7; }
.swatch-teal { background: #0D9488; }
.swatch-purple { background: #7C3AED; }
.swatch-rose { background: #E11D48; }
.swatch-amber { background: #D97706; }

.lang-selector {
  display: flex;
  gap: 3px;
  background: var(--seg-bg);
  padding: 2px;
  border-radius: var(--radius-sm);
}

.lang-btn {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 6px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--mu);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.lang-btn.active {
  background: var(--card-bg);
  color: var(--ac);
  box-shadow: var(--shadow-sm);
}

.mode-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: var(--seg-bg);
  border: 1px solid var(--bd);
  font-size: 11px;
  color: var(--tx);
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.mode-toggle-btn:hover {
  background: var(--as);
  color: var(--ac);
}