/* Quantify — Togal-inspired layout and theme */

:root {
  --topbar-bg: #0d3d3d;
  --topbar-fg: rgba(255, 255, 255, 0.95);
  --topbar-fg-dim: rgba(255, 255, 255, 0.7);
  --accent-green: #22a34a;
  --accent-green-hover: #1d8f3f;
  --accent-outline: rgba(34, 163, 74, 0.8);
  --content-bg: #e8e9ea;
  --toolbar-bg: #e0e1e3;
  --panel-bg: #f5f6f7;
  --panel-border: #d8d9db;
  --modal-bg: #ffffff;
  --modal-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  --cta-blue: #1a56a5;
  --cta-blue-hover: #154a8f;
  --text: #1a1a1a;
  --text-muted: #5c5c5c;
  --topbar-height: 52px;
  --toolbar-width: 56px;
  --panel-width: 320px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--content-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top bar */
.topbar {
  height: var(--topbar-height);
  background: var(--topbar-bg);
  color: var(--topbar-fg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  flex-shrink: 0;
}

.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-left {
  gap: 4px;
}

.doc-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 8px;
}

.doc-nav-label {
  padding: 0 6px;
  font-size: 13px;
  color: var(--topbar-fg-dim);
}

.doc-title {
  margin-left: 8px;
  font-size: 13px;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-version {
  margin-left: 12px;
  font-size: 12px;
  color: var(--topbar-fg-dim);
  font-weight: normal;
}

.icon-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: inherit;
  cursor: pointer;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.icon-btn.small {
  width: 28px;
  height: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--topbar-fg);
}

.btn-primary {
  background: var(--accent-green);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-green-hover);
}

.btn-outline {
  border: 1px solid var(--accent-outline);
  color: rgba(255, 255, 255, 0.95);
}

.btn-outline:hover,
.btn-outline.btn-active {
  background: rgba(34, 163, 74, 0.2);
}

.btn-ghost {
  color: var(--topbar-fg-dim);
}

.btn-ghost:hover {
  color: var(--topbar-fg);
  background: rgba(255, 255, 255, 0.08);
}

.btn-upload {
  margin-top: 12px;
  padding: 10px 20px;
  background: var(--accent-green);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.btn-upload:hover {
  background: var(--accent-green-hover);
}

.btn-cta {
  background: var(--cta-blue);
  color: #fff;
  padding: 10px 24px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.btn-cta:hover {
  background: var(--cta-blue-hover);
}

/* App body: toolbar + viewer + panel */
.app-body {
  flex: 1;
  display: flex;
  min-height: 0;
}

/* Left toolbar */
.toolbar {
  width: var(--toolbar-width);
  background: var(--toolbar-bg);
  border-right: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 4px;
  flex-shrink: 0;
}

.tool-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
}

.tool-btn:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text);
}

.tool-btn.active {
  background: rgba(0, 0, 0, 0.08);
  color: var(--text);
}

.toolbar-divider {
  height: 1px;
  width: 24px;
  background: var(--panel-border);
  margin: 6px 0;
}

/* Main viewer */
.viewer {
  flex: 1;
  min-width: 0;
  background: var(--content-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  position: relative;
}

/* 2D/3D toggle — separated from sidebar, overlaps viewer content */
.view-toggle {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 10;
  display: flex;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 3px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.view-btn {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.view-btn:hover {
  color: var(--text);
}

.view-btn.active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.viewer-content {
  flex: 1;
  align-self: stretch;
  min-width: 0;
  min-height: 0;
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewer-viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.viewer-viewport.viewer-viewport--active {
  pointer-events: auto;
  cursor: grab;
}

.viewer-viewport.viewer-viewport--active:active {
  cursor: grabbing;
}

.viewer-viewport.viewer-viewport--zoom-window {
  cursor: crosshair;
}

.viewer-zoom-rect {
  position: absolute;
  pointer-events: none;
  border: 2px solid var(--accent-green, #22a34a);
  background: rgba(34, 163, 74, 0.12);
  z-index: 2;
}

.viewer-zoom-rect[hidden] {
  display: none !important;
}

.viewer-stage {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform;
}

.viewer-stage .doc-image {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: fill;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.viewer-stage .fixture-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}

.viewer-content.viewer-drag-over {
  background: rgba(34, 163, 74, 0.06);
}

.viewer-content.viewer-drag-over .viewer-placeholder {
  border-color: var(--accent-green);
  background: rgba(34, 163, 74, 0.06);
}

.viewer-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(232, 233, 234, 0.9);
  z-index: 20;
}

.viewer-spinner[hidden] {
  display: none !important;
}

.viewer-spinner-ring {
  width: 40px;
  height: 40px;
  border: 3px solid var(--panel-border);
  border-top-color: var(--accent-green);
  border-radius: 50%;
  animation: viewer-spin 0.8s linear infinite;
}

.viewer-spinner-text {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

@keyframes viewer-spin {
  to { transform: rotate(360deg); }
}

.viewer-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  padding: 32px;
  text-align: center;
  border: 2px dashed var(--panel-border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.5);
  min-width: 280px;
  min-height: 200px;
}

.viewer-placeholder[hidden] {
  display: none !important;
}

.viewer-placeholder p {
  margin: 12px 0 0;
  font-size: 14px;
}

.doc-canvas,
.doc-image {
  max-width: 100%;
  height: auto;
  display: block;
}

.doc-canvas[hidden],
.doc-image[hidden] {
  display: none !important;
}

/* Right panel */
.right-panel {
  width: var(--panel-width);
  background: var(--panel-bg);
  border-left: 1px solid var(--panel-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.right-panel.panel-hidden {
  width: 0;
  min-width: 0;
  overflow: hidden;
  border-left-width: 0;
}

.right-panel.collapsed {
  width: 48px;
  min-width: 48px;
}

.right-panel.collapsed.panel-hidden {
  width: 0;
  min-width: 0;
}

.right-panel.collapsed .panel-header-left,
.right-panel.collapsed .panel-header-actions-quantities,
.right-panel.collapsed .panel-content {
  display: none !important;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--panel-border);
}

.panel-header-left {
  flex: 1;
  min-width: 0;
}

.panel-header-left[hidden] {
  display: none !important;
}

.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.panel-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel-tab-quantities {
  overflow: auto;
}

.panel-tab-chat {
  overflow: hidden;
}

.panel-tab[hidden] {
  display: none !important;
}

.panel-search {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  font-size: 13px;
  background: #fff;
}

.panel-search::placeholder {
  color: var(--text-muted);
}

.panel-actions {
  display: flex;
  gap: 2px;
}

.panel-actions .icon-btn {
  color: var(--text-muted);
}

.panel-actions .icon-btn:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.06);
}

.panel-content {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 12px;
  overflow: hidden;
}

.quantities-placeholder {
  font-size: 13px;
}

.quantities-toolbar {
  margin-bottom: 12px;
}

.quantities-hint {
  color: var(--text-muted);
  margin: 0 0 8px;
}

.fixture-overlay-master {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.fixture-overlay-master input {
  margin: 0;
}

.fixture-overlay-master[hidden] {
  display: none;
}

.quantities-table .th-visibility {
  width: 44px;
  text-align: center;
}

.quantities-table .th-visibility-label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.quantities-table td.td-visibility {
  text-align: center;
  vertical-align: middle;
}

.quantities-table td.td-visibility input {
  margin: 0;
  cursor: pointer;
}

.quantities-table .td-fixture {
  display: flex;
  align-items: center;
  gap: 8px;
}

.quantities-table .fixture-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}

.quantities-table .fixture-name {
  font-weight: 500;
}

.quantities-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.quantities-table th,
.quantities-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--panel-border);
}

.quantities-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.quantities-table .empty-row {
  color: var(--text-muted);
  font-style: italic;
}

/* Chat tab */
.chat-messages {
  flex: 1;
  min-height: 0;
  overflow: auto;
  font-size: 13px;
  margin-bottom: 12px;
}

.chat-placeholder {
  color: var(--text-muted);
  margin: 0;
  font-size: 13px;
}

.chat-msg {
  margin-bottom: 12px;
  font-size: 13px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--panel-border);
}

.chat-msg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--panel-border);
}

.chat-msg-user .chat-msg-header {
  background: rgba(34, 163, 74, 0.08);
  color: var(--accent-green);
}

.chat-msg-assistant .chat-msg-header {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-muted);
}

.chat-msg-role {
  font-weight: 600;
}

.chat-msg-time {
  font-weight: normal;
  opacity: 0.9;
  font-size: 11px;
}

.chat-msg-body {
  padding: 10px 12px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-msg-user .chat-msg-body {
  background: rgba(34, 163, 74, 0.04);
  color: var(--text);
}

.chat-msg-assistant .chat-msg-body {
  background: var(--panel-bg);
  color: var(--text);
}

.chat-input-row {
  flex-shrink: 0;
  display: flex;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--panel-border);
}

.chat-input {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  font-size: 13px;
}

.chat-send {
  flex-shrink: 0;
  padding: 8px 14px;
}

/* Welcome modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: var(--modal-bg);
  border-radius: 12px;
  box-shadow: var(--modal-shadow);
  max-width: 440px;
  width: 100%;
  padding: 28px 32px;
}

.modal-title {
  margin: 0 0 12px;
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}

.modal-desc {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-muted);
}

.modal-brand {
  margin: 20px 0 0;
  font-size: 12px;
  color: var(--text-muted);
  opacity: 0.8;
}

.modal-footer {
  margin-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-progress {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== Responsive layout ========== */

/* Large tablet / small desktop */
@media (max-width: 1200px) {
  :root {
    --panel-width: 280px;
  }
  .topbar {
    padding: 0 12px;
  }
  .doc-title {
    max-width: 160px;
  }
}

/* Tablet: compact topbar, panel can stack below on smaller */
@media (max-width: 1024px) {
  :root {
    --panel-width: 260px;
    --toolbar-width: 48px;
  }
  .topbar-right .btn {
    padding: 6px 10px;
    font-size: 12px;
  }
  .topbar-version {
    display: none;
  }
  .tool-btn {
    width: 36px;
    height: 36px;
  }
}

/* Small tablet / large phone: stack layout, horizontal toolbar */
@media (max-width: 768px) {
  .topbar {
    padding: 0 8px;
    flex-wrap: wrap;
    min-height: 48px;
    height: auto;
    padding: 6px 8px;
  }
  .topbar-left {
    flex-wrap: wrap;
  }
  .doc-nav,
  .doc-title {
    max-width: 120px;
  }
  .topbar-right {
    flex-wrap: wrap;
  }
  .app-body {
    flex-direction: column;
  }
  .toolbar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    padding: 8px;
    gap: 4px;
    border-right: none;
    border-bottom: 1px solid var(--panel-border);
  }
  .toolbar-divider {
    width: 1px;
    height: 24px;
    margin: 0 6px;
  }
  .view-toggle {
    left: 8px;
    top: 8px;
  }
  .viewer {
    flex: 1;
    min-height: 50vh;
  }
  .right-panel:not(.panel-hidden) {
    width: 100%;
    max-width: 100%;
    border-left: none;
    border-top: 1px solid var(--panel-border);
  }
  .right-panel.collapsed:not(.panel-hidden) {
    width: 100%;
    min-width: 100%;
  }
  .viewer-placeholder {
    min-width: 240px;
    min-height: 160px;
    padding: 24px;
  }
  .modal {
    max-width: 90vw;
    margin: 16px;
  }
}

/* Phone: very compact */
@media (max-width: 480px) {
  .topbar-left .doc-nav,
  .topbar-left .doc-title {
    display: none;
  }
  .topbar-right .btn {
    padding: 8px;
  }
  .topbar-right .btn:not(.btn-primary) {
    padding: 6px 8px;
  }
  .doc-title {
    display: none;
  }
  .viewer-placeholder {
    min-width: 200px;
    min-height: 140px;
    padding: 20px;
  }
  .viewer-placeholder p {
    font-size: 13px;
  }
  .chat-input-row {
    flex-direction: column;
  }
  .chat-send {
    width: 100%;
  }
}