:root {
  --bg: #0b1020;
  --bg-elevated: #111a2b;
  --panel: #171f31;
  --panel-strong: #1f2b3d;
  --panel-soft: #1a2439;
  --border: rgba(148, 163, 184, 0.18);
  --text: #e5edf9;
  --muted: #9aa9c4;
  --primary: #7dd3fc;
  --primary-soft: rgba(125, 211, 252, 0.12);
  --accent: #c084fc;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --shadow: rgba(2, 6, 23, 0.45);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  overflow: hidden;
}

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0f1d 0%, #101826 100%);
}

.sidebar {
  background: rgba(13, 19, 31, 0.9);
  border-right: 1px solid var(--border);
  padding: 2px 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 8px 24px;
}

.brand-mark {
  width: 58px;
  height: 58px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #0a1220;
  font-size: 2rem;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(125, 211, 252, 0.25);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.68rem;
}

.brand-block h1 {
  margin: 0;
  font-size: 1.28rem;
  line-height: 1.15;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.nav-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  border-radius: 12px;
  text-align: left;
  padding: 12px 14px;
  transition: 0.2s ease;
  font-weight: 600;
}

.nav-btn:hover,
.nav-btn.active {
  background: var(--primary-soft);
  border-color: rgba(125, 211, 252, 0.25);
  box-shadow: inset 0 0 0 1px rgba(125, 211, 252, 0.08);
}

.hidden {
  display: none !important;
}

.upload-field {
  min-width: 0;
}

.file-picker {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.8);
  border-radius: 12px;
}

.hidden-file-input {
  display: none;
}

.secondary-btn {
  border: 1px solid rgba(125, 211, 252, 0.25);
  background: rgba(125, 211, 252, 0.08);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  font-weight: 600;
}

.file-name {
  color: var(--muted);
  font-size: 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 140px;
}

.plate-name-container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.plate-name-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.queue-item {
  width: 100%;
  max-width: 100%;
  transition: transform 0.28s ease, opacity 0.2s ease, box-shadow 0.28s ease, border-color 0.2s ease;
}

.queue-item.dragging {
  opacity: 0.65;
  transform: scale(0.985);
}

.queue-item.drop-target {
  box-shadow: 0 0 0 2px rgba(125, 211, 252, 0.45), 0 18px 34px rgba(15, 23, 42, 0.38);
  border-color: rgba(125, 211, 252, 0.45);
  transform: translateY(-5px) scale(1.015);
  animation: reorderPulse 0.3s ease;
}

.queue-item.is-removing {
  animation: queueFadeOut 0.35s ease forwards;
}

@keyframes queueFadeOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
  }
}

@keyframes reorderPulse {
  0% {
    box-shadow: 0 0 0 0 rgba(125, 211, 252, 0.2);
    transform: translateY(0) scale(1);
  }
  35% {
    box-shadow: 0 0 0 10px rgba(125, 211, 252, 0.1);
    transform: translateY(-8px) scale(1.02);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(125, 211, 252, 0);
    transform: translateY(-5px) scale(1.015);
  }
}

.sidebar-card,
.card {
  background: rgba(23, 31, 49, 0.9);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow) 0 10px 30px;
}

.sidebar-card {
  padding: 18px 16px 22px;
  text-align: center;
}

.sidebar-card p {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.sidebar-card h3 {
  margin: 14px 0 0;
  color: #ffffff;
  font-size: 1.7rem;
  line-height: 1.1;
  font-weight: 800;
}

.content {
  padding: 32px;
  overflow: hidden;
}

.view {
  display: none;
}

.view.active {
  display: block;
  animation: viewFadeIn 0.28s ease both;
}

@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.page-header h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.panel-grid {
  display: grid;
  gap: 20px;
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.filament-page-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
  gap: 20px;
  align-items: start;
}

.filament-forms {
  display: grid;
  gap: 16px;
}

.filament-library-card {
  min-height: 100%;
  padding: 20px;
}

.form-card,
.list-card {
  padding: 20px;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.card h3 {
  margin: 0;
  font-size: 1.15rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  border-radius: 999px;
  padding: 0 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.field-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.inline-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--muted);
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
  border-radius: 12px;
  padding: 11px 12px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type="color"] {
  height: 44px;
  padding: 4px;
  background: var(--panel-strong);
  cursor: pointer;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(125, 211, 252, 0.7);
  box-shadow: 0 0 0 3px rgba(125, 211, 252, 0.12);
}

textarea {
  resize: vertical;
  min-height: 88px;
}

.primary-btn {
  background: linear-gradient(135deg, var(--primary), #9ae6ff);
  color: #091421;
  border: none;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  box-shadow: 0 12px 28px rgba(125, 211, 252, 0.22);
}

.stack-list,
.history-list,
.inventory-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.queue-item,
.history-entry,
.filament-card {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  animation: contentSlideIn 0.28s ease both;
}

@keyframes contentSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 1000;
  animation: modalFadeIn 0.2s ease both;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.7);
  animation: backdropFadeIn 0.2s ease both;
}

.modal-card {
  position: relative;
  z-index: 1;
  width: min(560px, calc(100vw - 32px));
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px;
  box-shadow: 0 24px 80px rgba(2, 6, 23, 0.7);
  animation: modalSlideIn 0.24s ease both;
}

@keyframes modalFadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes backdropFadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalSlideIn { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

.modal-header,
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.modal-header {
  margin-bottom: 18px;
}

.modal-close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(148, 163, 184, 0.06);
  color: var(--text);
  font-size: 1.3rem;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-actions {
  margin-top: 20px;
}

.modal-plate-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.delete-btn {
  border: 1px solid rgba(248, 113, 113, 0.2);
  background: rgba(248, 113, 113, 0.08);
  color: #fca5a5;
}

.queue-item {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.queue-top {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: flex-start;
  gap: 16px;
}

.queue-main {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.queue-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.queue-main strong,
.filament-card h4,
.history-entry strong {
  font-size: 1rem;
}

.filament-card h4 {
  flex: 1;
  margin: 0;
  font-size: 1.2rem;
}

.queue-meta,
.meta-row,
.muted {
  color: var(--muted);
  font-size: 0.82rem;
}

.file-chip {
  display: inline-flex;
  align-self: flex-start;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.08);
  color: var(--primary);
  border: 1px solid rgba(125, 211, 252, 0.18);
  padding: 4px 8px;
  font-size: 0.72rem;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.queue-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.small-btn,
.icon-btn {
  border: 1px solid var(--border);
  background: rgba(148, 163, 184, 0.06);
  color: var(--text);
  border-radius: 10px;
  padding: 7px 10px;
  font-size: 0.8rem;
}

.icon-btn {
  min-width: 38px;
}

.plate-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plate-progress-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.78rem;
}

.progress-bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.12);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--success));
  transition: width 0.28s ease;
  animation: progressGlow 0.45s ease;
}

@keyframes progressGlow {
  from { filter: brightness(1.5); transform: scaleX(0.96); transform-origin: left; }
  to { filter: brightness(1); transform: scaleX(1); }
}

.plate-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.plate-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.8));
  border: 1px solid rgba(148, 163, 184, 0.22);
  color: var(--text);
  font-size: 0.8rem;
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}

.plate-toggle input {
  width: 15px;
  height: 15px;
  accent-color: var(--primary);
}

.plate-toggle:has(input:checked) {
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.12), rgba(52, 211, 153, 0.12));
  border-color: rgba(125, 211, 252, 0.38);
}

.queue-page-grid {
  display: grid;
  grid-template-columns: minmax(360px, 440px) minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
  min-height: calc(100vh - 120px);
}

.list-card {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#queueList {
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
  min-height: 0;
  max-height: calc(100vh - 235px);
}

.urgency-pill {
  display: inline-flex;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 0.7rem;
  font-weight: 700;
  border: 1px solid transparent;
}

.urgency-pill.high {
  background: rgba(248, 113, 113, 0.12);
  color: #fca5a5;
  border-color: rgba(248, 113, 113, 0.22);
}

.urgency-pill.normal {
  background: rgba(251, 191, 36, 0.12);
  color: #fcd34d;
  border-color: rgba(251, 191, 36, 0.2);
}

.urgency-pill.low {
  background: rgba(52, 211, 153, 0.12);
  color: #6ee7b7;
  border-color: rgba(52, 211, 153, 0.2);
}

.full-width-card {
  margin-top: 22px;
  padding: 20px;
}

.inventory-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.history-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.select-all-history {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.select-all-history input,
.history-checkbox {
  width: 16px;
  height: 16px;
}

.selected-filament-color {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  margin-top: 6px;
  padding: 2px 8px 2px 28px;
  border-radius: 999px;
  background-repeat: no-repeat !important;
  background-position: 7px center !important;
  background-size: 14px 14px !important;
  color: var(--text);
  font-size: 0.78rem;
}

.filament-card {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.filament-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-swatch {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
}

.inventory-remaining {
  margin-top: 2px;
  color: var(--text);
  font-size: 1.55rem;
  line-height: 1;
  font-weight: 800;
}

.low-stock-label {
  display: inline-block;
  margin-left: 6px;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(251, 191, 36, 0.14);
  color: #fcd34d;
  font-size: 0.68rem;
  vertical-align: middle;
}

.out-section {
  margin-top: 18px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.out-section summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 700;
}

.out-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.out-card {
  opacity: 0.78;
}

.retention-card {
  margin-top: 18px;
  padding: 18px 20px;
}

.retention-controls {
  display: grid;
  grid-template-columns: 1fr minmax(180px, 260px);
  align-items: end;
  gap: 20px;
}

.filament-card .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.74rem;
  background: rgba(125, 211, 252, 0.08);
  color: var(--primary);
  border: 1px solid rgba(125, 211, 252, 0.18);
}

.history-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.history-entry .entry-main {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.history-entry .entry-cost {
  text-align: right;
}

.history-entry .entry-cost strong {
  display: block;
  font-size: 1.1rem;
}

.history-entry-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 140px;
  padding: 18px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.4);
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .content {
    padding: 18px;
  }

  .two-columns,
  .filament-page-grid,
  .queue-page-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .inventory-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #queueList {
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 560px) {
  .inventory-grid {
    grid-template-columns: 1fr;
  }
}