/* Evident ICU Dashboard Application Shell
   Task-oriented layout for eDiscovery workflows
   Copyright (c) 2026 Evident Technologies LLC
*/

/* ── App Shell ───────────────────────────────────────────────────────────── */
.dashboard-app-shell {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  background: oklch(97% 0.01 250deg);
}

/* ── Top Bar ─────────────────────────────────────────────────────────────── */
.dashboard-app__topbar {
  background: oklch(100% 0 0deg);
  border-block-end: 1px solid oklch(90% 0.02 250deg);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px oklch(0% 0 0deg / 5%);
}

.dashboard-app__topbar-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  max-width: 1600px;
  margin: 0 auto;
}

/* Case Selector */
.dashboard-app__case-selector {
  justify-self: start;
}

.dashboard-app__case-select {
  min-width: 280px;
  padding: 0.5rem 0.75rem;
  border: 1px solid oklch(80% 0.03 250deg);
  border-radius: 0.375rem;
  background: oklch(100% 0 0deg);
  font-size: 0.875rem;
  color: oklch(30% 0.02 250deg);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.dashboard-app__case-select:hover {
  border-color: oklch(60% 0.1 250deg);
}

.dashboard-app__case-select:focus {
  outline: 2px solid oklch(60% 0.15 250deg);
  outline-offset: 2px;
}

/* Global Search */
.dashboard-app__search {
  justify-self: center;
}

.dashboard-app__search-form {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dashboard-app__search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.dashboard-app__search-icon {
  position: absolute;
  left: 0.75rem;
  color: oklch(60% 0.03 250deg);
  pointer-events: none;
}

.dashboard-app__search-input {
  width: 400px;
  padding: 0.5rem 0.75rem 0.5rem 2.5rem;
  border: 1px solid oklch(80% 0.03 250deg);
  border-radius: 0.375rem;
  background: oklch(100% 0 0deg);
  font-size: 0.875rem;
  color: oklch(30% 0.02 250deg);
  transition: border-color 0.15s ease;
}

.dashboard-app__search-input:hover {
  border-color: oklch(60% 0.1 250deg);
}

.dashboard-app__search-input:focus {
  outline: 2px solid oklch(60% 0.15 250deg);
  outline-offset: 2px;
}

.dashboard-app__search-btn {
  padding: 0.5rem 0.75rem;
  border: 1px solid oklch(80% 0.03 250deg);
  border-radius: 0.375rem;
  background: oklch(100% 0 0deg);
  color: oklch(50% 0.03 250deg);
  cursor: pointer;
  transition:
    background 150ms ease,
    border-color 150ms ease,
    color 150ms ease;
}

.dashboard-app__search-btn:hover {
  background: oklch(97% 0.01 250deg);
  border-color: oklch(60% 0.1 250deg);
  color: oklch(40% 0.05 250deg);
}

/* User Menu */
.dashboard-app__user-menu {
  justify-self: end;
}

.dashboard-app__user-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid oklch(80% 0.03 250deg);
  border-radius: 0.375rem;
  background: oklch(100% 0 0deg);
  color: oklch(30% 0.02 250deg);
  cursor: pointer;
  transition:
    background 150ms ease,
    border-color 150ms ease;
}

.dashboard-app__user-btn:hover {
  background: oklch(97% 0.01 250deg);
  border-color: oklch(60% 0.1 250deg);
}

.dashboard-app__user-name {
  font-size: 0.875rem;
  font-weight: 500;
}

/* ── Main Body ───────────────────────────────────────────────────────────── */
.dashboard-app__body {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: calc(100vh - 64px);
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.dashboard-app__sidebar {
  background: oklch(100% 0 0deg);
  border-inline-end: 1px solid oklch(90% 0.02 250deg);
  display: flex;
  flex-direction: column;
  padding: 1.5rem 0;
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
}

.dashboard-app__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.dashboard-app__nav-item {
  margin: 0;
}

.dashboard-app__nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: oklch(50% 0.03 250deg);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-inline-start: 3px solid transparent;
  transition:
    background 150ms ease,
    color 150ms ease,
    border-inline-start-color 150ms ease;
}

.dashboard-app__nav-link:hover {
  background: oklch(97% 0.01 250deg);
  color: oklch(30% 0.02 250deg);
}

.dashboard-app__nav-link--active {
  background: oklch(95% 0.03 250deg);
  color: oklch(30% 0.02 250deg);
  border-inline-start-color: oklch(60% 0.15 250deg);
}

.dashboard-app__nav-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.dashboard-app__nav-label {
  flex: 1;
}

/* Sidebar Footer */
.dashboard-app__sidebar-footer {
  margin-top: auto;
  padding: 1.5rem;
  border-block-start: 1px solid oklch(90% 0.02 250deg);
}

.dashboard-app__lumen-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, oklch(60% 0.15 250deg), oklch(55% 0.2 170deg));
  color: oklch(100% 0 0deg);
  text-decoration: none;
  font-weight: 600;
  border-radius: 0.5rem;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.dashboard-app__lumen-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px oklch(60% 0.15 250deg / 30%);
}

/* ── Main Content ────────────────────────────────────────────────────────── */
.dashboard-app__main {
  background: oklch(97% 0.01 250deg);
  overflow-y: auto;
  padding: 2rem;
}

.dashboard-app__page-header {
  margin-bottom: 2rem;
}

.dashboard-app__page-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}

.dashboard-app__page-header-copy {
  flex: 1;
}

.dashboard-app__page-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: oklch(20% 0.02 250deg);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.dashboard-app__page-lead {
  font-size: 1rem;
  color: oklch(50% 0.03 250deg);
  margin: 0;
  line-height: 1.6;
  max-width: 720px;
}

.dashboard-app__content {
  background: oklch(100% 0 0deg);
  border-radius: 0.75rem;
  padding: 2rem;
  box-shadow: 0 1px 3px oklch(0% 0 0deg / 5%);
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (width <= 1024px) {
  .dashboard-app__topbar-inner {
    grid-template-columns: 1fr auto;
    gap: 1rem;
  }

  .dashboard-app__case-selector {
    grid-column: 1;
  }

  .dashboard-app__search {
    grid-column: 2;
  }

  .dashboard-app__user-menu {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 0.5rem;
  }

  .dashboard-app__search-input {
    width: 280px;
  }

  .dashboard-app__body {
    grid-template-columns: 240px 1fr;
  }
}

@media (width <= 768px) {
  .dashboard-app__topbar-inner {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .dashboard-app__case-selector,
  .dashboard-app__search,
  .dashboard-app__user-menu {
    grid-column: 1;
    justify-self: stretch;
  }

  .dashboard-app__search-input {
    width: 100%;
  }

  .dashboard-app__body {
    grid-template-columns: 1fr;
  }

  .dashboard-app__sidebar {
    display: none; /* Mobile nav implementation needed */
  }

  .dashboard-app__main {
    padding: 1rem;
  }

  .dashboard-app__page-header-inner {
    flex-direction: column;
    gap: 1rem;
  }
}

/* ── Accessibility ──────────────────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Focus visible */
.dashboard-app__case-select:focus-visible,
.dashboard-app__search-input:focus-visible,
.dashboard-app__search-btn:focus-visible,
.dashboard-app__user-btn:focus-visible,
.dashboard-app__nav-link:focus-visible,
.dashboard-app__lumen-link:focus-visible {
  outline: 2px solid oklch(60% 0.15 250deg);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .dashboard-app__lumen-link,
  .dashboard-app__nav-link,
  .dashboard-app__search-btn,
  .dashboard-app__user-btn {
    transition: none;
  }
}