:root {
  --bg-body: #020617;
  --bg-elevated: #02081f;
  --bg-card: #020617;
  --bg-card-soft: #020617;
  --bg-sidebar: #020617;

  --border-subtle: #111827;
  --border-strong: #1f2937;

  --accent: #0ea5e9;
  --accent-soft: #38bdf8;
  --accent-strong: #0284c7;

  --text-main: #e5e7eb;
  --text-strong: #f9fafb;
  --text-muted: #9ca3af;

  --input-bg: #020818;
  --input-border: #374151;

  --shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.8);
}

body {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

::placeholder {
  color: var(--text-muted) !important;
  opacity: 1;
}

.navbar {
  background: linear-gradient(90deg, #020617, #020b2a);
  border-bottom: 1px solid var(--border-strong);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.75);
}

.navbar-brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-strong) !important;
  font-size: 1rem;
}

.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid var(--accent-soft);
  color: var(--accent-soft);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, rgba(56, 189, 248, 0.18), transparent);
}

.brand-text {
  font-size: 0.98rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-accent {
  color: var(--accent-soft);
  font-weight: 600;
}

.nav-link-back {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.nav-link-back:hover {
  color: var(--text-strong);
}

.navbar .text-muted.small {
  color: #d1d5db !important;
}

.dm-sidebar {
  width: 230px;
  min-height: calc(100vh - 56px);
  background: linear-gradient(180deg, var(--bg-sidebar), #020918);
  border-right: 1px solid var(--border-strong);
}

.dm-sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1rem;
  gap: 0.75rem;
}

.dm-sidebar-nav {
  margin-top: 0.5rem;
}

.dm-sidebar-nav .nav-link {
  color: var(--text-main);
  font-size: 0.9rem;
  padding: 0.45rem 0.55rem;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.dm-sidebar-nav .nav-link i {
  font-size: 0.98rem;
}

.dm-sidebar-nav .nav-link:hover {
  background-color: #111827;
  color: var(--text-strong);
  transform: translateX(1px);
}

.dm-sidebar-nav .nav-link.active {
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.18), transparent), #020b2a;
  color: var(--text-strong);
  border: 1px solid var(--accent-soft);
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9);
}

.dm-sidebar-footer {
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.75rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.dm-main {
  flex: 1;
  min-height: calc(100vh - 56px);
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.10), transparent), var(--bg-body);
  padding-bottom: 2rem;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 0.25rem;
}

.page-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

label,
.form-label,
.form-label.small,
.small,
.small.text-muted {
  color: var(--text-main) !important;
  opacity: 1 !important;
}

.form-control,
.form-select,
.form-control-sm,
.form-select-sm {
  background-color: var(--input-bg) !important;
  border-color: var(--input-border) !important;
  color: var(--text-strong) !important;
}

.form-check-label {
  color: var(--text-main) !important;
}

.form-check-input:disabled ~ .form-check-label {
  color: var(--text-muted) !important;
  opacity: 1 !important;
}

.form-check-input:checked ~ .form-check-label {
  color: var(--text-strong) !important;
}


.btn-accent,
.btn-capture,
.btn-success {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft)) !important;
  border-color: var(--accent) !important;
  font-weight: 600 !important;
  border-radius: 999px;
  padding-inline: 26px;
  color: #020617 !important;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.25);
  cursor: pointer;
}

.btn-outline-info.dm-btn {
  border-color: rgba(56, 189, 248, 0.45) !important;
  color: var(--accent-soft) !important;
}
.btn-outline-info.dm-btn:hover {
  background: rgba(56, 189, 248, 0.12) !important;
  border-color: rgba(56, 189, 248, 0.65) !important;
  color: var(--text-strong) !important;
}

.dicom-card,
.viewer-card,
.pacs-card {
  border-radius: 12px;
  overflow: hidden !important;
  border: 1px solid var(--border-strong) !important;
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617) !important;
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: 1rem 1.25rem !important;
  display: flex !important;
  align-items: center !important;
  background: transparent !important;
  border-bottom: 1px solid var(--border-strong) !important;
}

.viewer-title,
.card-header span,
.card-header .viewer-title {
  color: var(--text-strong) !important;
  font-weight: 600 !important;
  opacity: 1 !important;
  background: transparent !important;
}

.viewer-box {
  position: relative;
  overflow: hidden;
  height: 520px;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#cine-frame {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(1);
  image-rendering: pixelated;
  user-select: none;
}

.viewer-hud {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 5;
  pointer-events: none;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--accent-soft) !important;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 12px;
  backdrop-filter: blur(6px);
}

.viewer-hud b,
.viewer-hud span {
  color: #ffffff !important;
}

.table-dark {
  --bs-table-bg: #02071c;
  --bs-table-border-color: var(--border-strong);
  --bs-table-color: var(--text-strong);
  color: var(--text-strong);
}

.table-dark td,
.table-dark th {
  border-color: var(--border-strong) !important;
  color: var(--text-strong) !important;
}


#metaSearch.form-control {
  background-color: var(--input-bg) !important;
  border-color: var(--input-border) !important;
  color: var(--text-strong) !important;
}

#metaTable.table-dark {
  background-color: transparent !important;
  --bs-table-bg: transparent !important;
  --bs-table-color: var(--text-main) !important;
  --bs-table-border-color: var(--border-strong) !important;

  --bs-table-striped-bg: rgba(255, 255, 255, 0.03) !important;
  --bs-table-hover-bg: rgba(56, 189, 248, 0.06) !important;
}

#metaTable thead th {
  background-color: var(--input-bg) !important;
  color: var(--text-muted) !important;
  border-bottom: 1px solid var(--border-strong) !important;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

#metaTable tbody tr,
#metaTable tbody td,
#metaTable tbody th {
  background-color: transparent !important;
  color: var(--text-main) !important;
  border-color: var(--border-strong) !important;
}

#metaTable tbody tr:hover {
  background-color: rgba(56, 189, 248, 0.06) !important;
}

#metaTable td:nth-child(2) {
  color: var(--accent-soft) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace !important;
}
#metaTable td:nth-child(1) {
  color: var(--text-strong) !important;
}

.modal .modal-content {
  background: var(--bg-body) !important;
  color: var(--text-main) !important;
  border: 1px solid var(--border-strong) !important;
}

.modal .modal-header,
.modal .modal-footer,
.modal .modal-body {
  background: var(--bg-body) !important;
  border-color: var(--border-strong) !important;
}

.modal .table {
  --bs-table-bg: transparent !important;
  --bs-table-color: var(--text-main) !important;
  --bs-table-border-color: var(--border-strong) !important;

  --bs-table-striped-bg: rgba(255, 255, 255, 0.03) !important;
  --bs-table-hover-bg: rgba(56, 189, 248, 0.06) !important;

  background: transparent !important;
  color: var(--text-main) !important;
}

.modal .table thead th {
  background: var(--input-bg) !important;
  color: var(--text-muted) !important;
  border-bottom: 1px solid var(--border-strong) !important;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.modal .table tbody tr,
.modal .table tbody td,
.modal .table tbody th {
  background: transparent !important;
  color: var(--text-main) !important;
  border-color: var(--border-strong) !important;
}

.modal .table tbody tr:hover {
  background: rgba(56, 189, 248, 0.06) !important;
}

.modal .table *[style*="background"] {
  background: transparent !important;
}

.modal .form-control,
.modal input.form-control {
  background: var(--input-bg) !important;
  border-color: var(--input-border) !important;
  color: var(--text-strong) !important;
}

.modal .table td:first-child {
  color: var(--accent-soft) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace !important;
}


.upload-hero {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.upload-dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  padding: 32px 48px;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.10), transparent);
  transition: border-color 0.2s ease;
}

.qc-card { border-radius: 12px; border-width: 1px; }
.qc-passed { background-color: #022c22; border-color: #065f46; color: var(--text-strong); }
.qc-warning { background-color: #3b2f0b; border-color: #a16207; color: var(--text-strong); }
.qc-error { background-color: #431022; border-color: #be123c; color: var(--text-strong); }


.btn-group.shadow-sm {
  display: flex !important;
  align-items: stretch !important;
  gap: 0 !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: 8px !important;
  overflow: hidden !important;
}

.btn-group.shadow-sm .btn {
  border: none !important;
  border-radius: 0 !important;
  margin: 0 !important;
  height: 38px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

.btn-group.shadow-sm .btn:not(:last-child) {
  border-right: 1px solid var(--border-strong) !important;
}

#frame-indicator {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace !important;
  font-size: 0.85rem !important;
  padding: 0 15px !important;
  white-space: nowrap !important;
  color: var(--text-strong) !important;
}


#metadataModal thead th {
  font-size: 0.72rem !important;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted) !important;
}

#metadataModal tbody td {
  font-size: 0.82rem !important;
  line-height: 1.45;
  vertical-align: middle;
}

#metadataModal .meta-val-text,
#metadataModal .meta-val-input {
  font-size: 0.82rem !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

#metadataModal .meta-tag-id {
  font-size: 0.8rem !important;
  color: var(--accent-soft) !important;
}

#metadataModal .btn-sm {
  padding: 0.15rem 0.45rem;
  font-size: 0.7rem;
}


.viewer-card .card-header {
  gap: 0.5rem;
}

.viewer-card .btn-group-sm .btn {
  padding-inline: 0.5rem;
}

@media (max-width: 992px) {
  .viewer-card .card-header {
    align-items: flex-start;
  }
}