:root {
  --bg: #f3f5f7;
  --bg-elevated: #ffffff;
  --bg-alt: #e9edf1;
  --surface: #ffffff;
  --surface-strong: #f8fafc;
  --text: #111827;
  --muted: #667085;
  --border: #d7dde5;
  --border-strong: #c2ccd7;
  --primary: #1f3b57;
  --primary-strong: #13283d;
  --accent: #5f6f82;
  --success: #166534;
  --warning: #b45309;
  --danger: #b42318;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --sidebar-width: 340px;
}

html[data-bs-theme='dark'] {
  --bg: #0f141b;
  --bg-elevated: #121a23;
  --bg-alt: #1a2430;
  --surface: #151d27;
  --surface-strong: #101720;
  --text: #e7edf4;
  --muted: #99a7b8;
  --border: #243140;
  --border-strong: #324457;
  --primary: #cbd5e1;
  --primary-strong: #f8fafc;
  --accent: #7f8ea3;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 10px 24px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body.archive-app {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

img,
video,
iframe {
  max-width: 100%;
}

a {
  color: inherit;
}

.btn,
.form-control,
.form-select,
.dropdown-menu,
.card,
.toast,
.badge,
.alert {
  border-radius: var(--radius-sm);
}

.btn-primary {
  --bs-btn-bg: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary-strong);
  --bs-btn-hover-border-color: var(--primary-strong);
  --bs-btn-active-bg: var(--primary-strong);
  --bs-btn-active-border-color: var(--primary-strong);
}

.btn-outline-secondary {
  --bs-btn-color: var(--text);
  --bs-btn-border-color: var(--border-strong);
  --bs-btn-hover-bg: var(--surface-strong);
  --bs-btn-hover-border-color: var(--border-strong);
  --bs-btn-hover-color: var(--text);
}

.form-control,
.form-select {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
  min-height: 46px;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.2rem rgba(31, 59, 87, 0.15);
}

.card,
.dropdown-menu,
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.section-kicker,
.eyebrow {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
}

.text-secondary,
.small,
small,
.form-text {
  color: var(--muted) !important;
}

code {
  background: var(--surface-strong);
  color: var(--text);
  padding: 0.18rem 0.4rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 520px);
}

.login-splash {
  position: relative;
  overflow: hidden;
  padding: 48px 56px;
  background: #0d141b;
  color: #eef4fa;
  display: flex;
  align-items: flex-end;
}

.glass-city {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.92;
}

.tower,
.grid-line {
  position: absolute;
  border: 1px solid rgba(233, 239, 246, 0.18);
  background: rgba(220, 230, 239, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.03), 0 20px 50px rgba(0,0,0,0.28);
}

.tower::before {
  content: '';
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255,255,255,0.06);
  opacity: 0.45;
}

.tower-a {
  width: 28%;
  height: 76%;
  bottom: -6%;
  left: 6%;
  transform: skewY(-8deg);
}

.tower-b {
  width: 26%;
  height: 64%;
  bottom: 2%;
  left: 30%;
  transform: skewY(-6deg);
}

.tower-c {
  width: 30%;
  height: 82%;
  right: 10%;
  bottom: -8%;
  transform: skewY(7deg);
}

.grid-line {
  border: 0;
  background: rgba(255,255,255,0.08);
}

.grid-a {
  width: 1px;
  top: 0;
  bottom: 0;
  left: 62%;
}

.grid-b {
  height: 1px;
  left: 0;
  right: 0;
  bottom: 24%;
}

.login-copy {
  position: relative;
  z-index: 1;
  max-width: 620px;
}

.login-copy h1 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 0 1rem;
  max-width: 14ch;
}

.login-copy .lead {
  font-size: 1.12rem;
  margin-bottom: 0.5rem;
  color: #f8fbff;
}

.muted-copy {
  max-width: 58ch;
  color: rgba(238, 244, 250, 0.78);
}

.security-badges {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.security-badges span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  font-size: 0.92rem;
}

.login-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: var(--bg);
}

.login-panel .card {
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow);
}

.demo-credentials {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

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

.sidebar-panel {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px;
  border-right: 1px solid var(--border);
  background: var(--bg-elevated);
  overflow-y: auto;
}

.sidebar-top {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.folder-tree {
  display: grid;
  gap: 0.9rem;
}

.folder-group {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.folder-group summary {
  list-style: none;
  cursor: pointer;
  padding: 0.9rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
}

.folder-group summary::-webkit-details-marker {
  display: none;
}

.folder-group[open] summary i {
  transform: rotate(180deg);
}

.folder-group summary i {
  transition: transform 0.2s ease;
}

.folder-links {
  padding: 0 0.85rem 0.85rem;
  display: grid;
  gap: 0.65rem;
}

.folder-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
}

.folder-select {
  text-align: left;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-strong);
  color: var(--text);
}

.folder-select:hover,
.folder-select.active {
  border-color: var(--primary);
  background: rgba(31, 59, 87, 0.06);
}

.folder-select small,
.folder-name {
  display: block;
}

.folder-name {
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.folder-add {
  width: 40px;
  height: 40px;
  padding: 0;
}

.app-main {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(243, 245, 247, 0.94);
  backdrop-filter: blur(12px);
}

html[data-bs-theme='dark'] .topbar {
  background: rgba(15, 20, 27, 0.92);
}

.topbar-static {
  position: sticky;
}

.profile-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 0.35rem 0.5rem 0.35rem 0.35rem;
  color: var(--text);
}

.profile-chip.static-chip {
  cursor: default;
}

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  background: var(--primary);
  color: #fff;
}

html[data-bs-theme='dark'] .avatar {
  background: var(--primary-strong);
  color: #111827;
}

.content-grid {
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.8fr);
  gap: 1.25rem;
}

.content-grid > .hero-panel,
.content-grid > .table-card {
  grid-column: 1 / -1;
}

.display-title {
  margin: 0;
  font-size: clamp(1.7rem, 2vw, 2.45rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  max-width: 18ch;
}

.session-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 0.85rem;
  min-width: min(100%, 340px);
}

.metric-box {
  padding: 1rem;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.metric-box span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 0.35rem;
}

.metric-box strong {
  font-size: 1.45rem;
}

.dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  min-height: 148px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1.2rem;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.dropzone i {
  font-size: 1.4rem;
  display: inline-flex;
  margin-bottom: 0.55rem;
  color: var(--primary);
}

.dropzone.dragover {
  border-color: var(--primary);
  background: rgba(31, 59, 87, 0.08);
  transform: translateY(-1px);
}

.queue-list {
  display: grid;
  gap: 0.75rem;
}

.queue-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}

.queue-item:hover {
  border-color: var(--primary);
}

.queue-item strong,
.queue-item span {
  display: block;
}

.search-box {
  position: relative;
  max-width: 320px;
  width: 100%;
}

.search-box i {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
}

.search-box input {
  padding-left: 2.6rem;
}

.archive-table th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.archive-table td,
.archive-table th {
  padding: 1rem 0.75rem;
  border-color: var(--border);
  background: transparent;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  padding: 0.42rem 0.72rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.status-pill.pending {
  color: var(--warning);
  background: rgba(180, 83, 9, 0.1);
  border-color: rgba(180, 83, 9, 0.18);
}

.status-pill.validated {
  color: var(--success);
  background: rgba(22, 101, 52, 0.1);
  border-color: rgba(22, 101, 52, 0.18);
}

.security-list {
  display: grid;
  gap: 0.85rem;
}

.security-list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.security-list i {
  color: var(--primary);
  margin-top: 0.15rem;
}

.empty-panel {
  min-height: 148px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1.5rem;
}

.empty-panel.tall {
  min-height: 240px;
}

.empty-panel i {
  font-size: 1.6rem;
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.detail-layout {
  max-width: 1460px;
}

.detail-meta strong,
.meta-label {
  display: block;
}

.meta-label {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.annotation-box {
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
}

.preview-frame {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-strong);
}

.preview-iframe {
  width: 100%;
  min-height: 640px;
  border: 0;
  background: #fff;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 0.35rem;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(31, 59, 87, 0.12);
}

.theme-toggle {
  min-width: 42px;
}

.sidebar-open .sidebar-panel {
  transform: translateX(0);
}

@media (max-width: 1199.98px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar-panel {
    position: fixed;
    z-index: 40;
    width: min(92vw, 360px);
    transform: translateX(-102%);
    transition: transform 0.24s ease;
    box-shadow: var(--shadow);
  }

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

@media (max-width: 991.98px) {
  .login-shell {
    grid-template-columns: 1fr;
  }

  .login-splash {
    min-height: 50vh;
    padding: 32px 24px;
  }

  .login-panel {
    padding: 20px;
  }

  .topbar {
    padding: 16px;
  }

  .content-grid {
    padding: 16px;
  }
}

@media (max-width: 575.98px) {
  .login-copy h1 {
    max-width: none;
  }

  .session-panel {
    grid-template-columns: 1fr 1fr;
  }

  .hero-actions,
  .detail-actions {
    width: 100%;
  }

  .hero-actions .btn,
  .detail-actions .btn {
    flex: 1 1 auto;
  }
}