/* ============================================================
   安防点位设计系统 — Design System 2.0
   暖感精密工具 · 单一 token 驱动 · 无暗色模式
   ============================================================ */

/* ─── Token Layer ────────────────────────────────────────── */
:root {
  /* Surfaces — aligned with pages.css */
  --bg:           #f5f6f8;
  --bg-raised:    #ecedf0;
  --surface:      #ffffff;
  --surface-alt:  #f8f9fa;

  /* Borders */
  --border:       #e3e6ec;
  --border-md:    #c8cdd8;
  --border-strong:#9ba3b0;

  /* Text */
  --text:         #1f2937;
  --text-muted:   #6b7280;
  --text-subtle:  #9ca3af;

  /* Accent — blue (aligned with pages.css --primary) */
  --accent:       #2563eb;
  --accent-hover: #1d4ed8;
  --accent-bg:    rgba(37, 99, 235, 0.07);
  --accent-ring:  rgba(37, 99, 235, 0.22);

  /* Status */
  --ok:           #15803d;
  --ok-bg:        rgba(21, 128, 61, 0.09);
  --warn:         #c97c00;
  --warn-bg:      rgba(201, 124, 0, 0.09);
  --bad:          #be2e2e;
  --bad-bg:       rgba(190, 46, 46, 0.09);

  /* Radius — one consistent scale */
  --r-xs:  3px;
  --r-sm:  5px;
  --r-md:  8px;
  --r-lg:  11px;
  --r-xl:  16px;

  /* Shadows */
  --s-xs:  0 1px 2px rgba(0,0,0,0.05);
  --s-sm:  0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --s-md:  0 4px 12px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
  --s-lg:  0 10px 28px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.04);

  /* Canvas hero shadow — three layers */
  --s-canvas:
    0 0 0 1px rgba(0,0,0,0.07),
    0 4px 16px rgba(0,0,0,0.10),
    0 14px 42px rgba(0,0,0,0.07);

  /* Easing */
  --ease:   cubic-bezier(0.4, 0, 0.2, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── Base reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Helvetica Neue", sans-serif !important;
  background: var(--bg) !important;
  color: var(--text) !important;
  overflow: hidden;
}

/* Erase decorative gradients from styles.css */
body {
  background: var(--bg) !important;
  background-image: none !important;
}

/* ─── App Shell ──────────────────────────────────────────── */
.app-shell {
  display: grid !important;
  grid-template-rows: 48px 1fr !important;
  height: 100vh !important;
  min-height: 100vh;
  background: var(--bg);
  padding: 0 !important;
  gap: 0 !important;
}

/* ─── App Bar ────────────────────────────────────────────── */
.app-header,
.site-top-nav { display: none !important; }

.app-bar {
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 16px;
  gap: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--s-xs);
  position: relative;
  z-index: 50;
}

.app-bar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-right: 18px;
  margin-right: 2px;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.app-bar__brand strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
}

.app-bar__tag {
  font-size: 10px;
  padding: 2px 8px;
  color: var(--accent);
  background: var(--accent-bg);
  border: 1px solid var(--accent-ring);
  border-radius: 100px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.app-bar__nav {
  display: flex;
  gap: 2px;
  flex: 1;
  padding: 0 10px;
}

.app-bar__nav a {
  padding: 5px 10px;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--r-sm);
  font-weight: 450;
  transition: background 120ms var(--ease), color 120ms var(--ease);
}

.app-bar__nav a:hover {
  background: var(--surface-alt);
  color: var(--text);
}

.app-bar__nav a.active {
  color: var(--accent);
  background: var(--accent-bg);
  font-weight: 600;
}

.app-bar__actions {
  display: flex;
  gap: 5px;
  align-items: center;
}

/* ─── Buttons — global ───────────────────────────────────── */
button,
.file-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-sm) !important;
  padding: 5px 10px !important;
  background: var(--surface) !important;
  color: var(--text) !important;
  font: inherit !important;
  font-size: 12.5px !important;
  font-weight: 500 !important;
  cursor: pointer;
  box-shadow: var(--s-xs) !important;
  transition:
    background 120ms var(--ease),
    border-color 120ms var(--ease),
    box-shadow 120ms var(--ease),
    transform 100ms var(--ease) !important;
}

button:hover,
.file-btn:hover {
  background: var(--surface-alt) !important;
  border-color: var(--border-md) !important;
  box-shadow: var(--s-sm) !important;
  transform: none !important;   /* cancel translateY from styles.css */
}

button:active,
.file-btn:active {
  transform: scale(0.95) !important;
  box-shadow: none !important;
  transition-duration: 60ms !important;
}

button:disabled,
select:disabled {
  opacity: 0.40;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
  box-shadow: none !important;
}

/* Ghost — top-bar utility buttons */
button.ghost {
  background: transparent !important;
  border-color: transparent !important;
  color: var(--text-muted) !important;
  box-shadow: none !important;
}
button.ghost:hover {
  background: var(--surface-alt) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}

/* Primary — export buttons */
#copyCanvasBtn,
#downloadCanvasBtn {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
  box-shadow: 0 1px 3px rgba(12,122,109,0.30), var(--s-xs) !important;
}
#copyCanvasBtn:hover,
#downloadCanvasBtn:hover {
  background: var(--accent-hover) !important;
  border-color: var(--accent-hover) !important;
  box-shadow: 0 2px 6px rgba(12,122,109,0.35) !important;
}

/* Danger — clear cache */
button.danger {
  color: var(--bad) !important;
  background: transparent !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
button.danger:hover {
  background: var(--bad-bg) !important;
  border-color: rgba(190,46,46,0.22) !important;
}

/* ─── Inputs ─────────────────────────────────────────────── */
input[type="text"],
input[type="number"],
select {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-sm) !important;
  padding: 4px 8px !important;
  color: var(--text) !important;
  font: inherit !important;
  font-size: 12px !important;
  transition: border-color 120ms var(--ease), box-shadow 120ms var(--ease);
}

input:focus-visible,
select:focus-visible {
  outline: none !important;
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-ring) !important;
}

:focus-visible {
  outline: none !important;
  box-shadow: 0 0 0 2px var(--accent-ring) !important;
  border-radius: var(--r-sm);
}

input[type="range"] {
  accent-color: var(--accent);
  width: 100px;
}

/* ─── Layout grid ────────────────────────────────────────── */
.content-grid {
  display: grid !important;
  grid-template-columns: minmax(200px, 260px) 1fr !important;
  gap: 10px !important;
  padding: 10px !important;
  background: var(--bg) !important;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  /* Spring sidebar collapse — supported Chrome 107+, FF 116+ */
  transition: grid-template-columns 260ms var(--spring);
}

.content-grid.panel-collapsed {
  grid-template-columns: 52px 1fr !important;
}

/* ─── Sidebar ────────────────────────────────────────────── */
.panel {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  box-shadow: var(--s-sm) !important;
  padding: 5px !important;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  min-width: 0;
  backdrop-filter: none !important;
}

/* Collapsed icon bar */
.panel-collapsed-tools {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 2px;
}

.panel-collapsed-tools button {
  width: 100%;
  min-width: 0;
  padding: 8px 0 !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  border-radius: var(--r-md) !important;
  justify-content: center;
}

.content-grid.panel-collapsed .panel {
  padding: 4px !important;
}

.content-grid.panel-collapsed .panel section {
  display: none !important;
}

.content-grid.panel-collapsed .panel-collapsed-tools {
  display: flex;
}

/* ─── Accordion sections ─────────────────────────────────── */
.panel section {
  background: transparent !important;
  border: none !important;
  border-bottom: 1px solid var(--border) !important;
  border-radius: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
}

.panel section:last-child {
  border-bottom: none !important;
}

.section-toggle {
  width: 100%;
  display: flex !important;
  justify-content: space-between;
  align-items: center;
  padding: 9px 10px !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
  font-size: 12.5px !important;
  font-weight: 600 !important;
  color: var(--text-muted) !important;
  cursor: pointer;
  box-shadow: none !important;
  letter-spacing: 0.005em;
  transition: background 100ms var(--ease), color 100ms var(--ease) !important;
  transform: none !important;
}

.section-toggle:hover {
  background: var(--bg) !important;
  color: var(--text) !important;
  transform: none !important;
}

.section-toggle:active {
  background: var(--bg-raised) !important;
  transform: none !important;
}

.section-toggle .chevron {
  font-size: 9px;
  color: var(--text-subtle);
  transition: transform 200ms var(--ease), color 150ms var(--ease);
}

/* Open state */
.panel section.open .section-toggle,
.section-toggle[aria-expanded="true"] {
  color: var(--accent) !important;
}

.panel section.open .section-toggle .chevron,
.section-toggle[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

/* Section body — collapse animation */
.section-body {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  padding: 0 10px !important;
  transition:
    max-height 220ms var(--ease),
    opacity    160ms var(--ease),
    padding    140ms var(--ease);
}

.panel section.open .section-body {
  max-height: 1200px;
  opacity: 1;
  padding: 2px 10px 12px !important;
}

/* Field rows */
.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  align-items: center;
  margin-bottom: 5px;
  font-size: 12px;
}

label {
  font-size: 12px;
  color: var(--text-muted);
}

.subtle {
  font-size: 11px !important;
  color: var(--text-subtle) !important;
  line-height: 1.5;
}

/* ─── Canvas wrap ────────────────────────────────────────── */
.canvas-wrap {
  display: grid !important;
  grid-template-rows: 40px 1fr !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-lg) !important;
  box-shadow: var(--s-md) !important;
  overflow: hidden;
  min-height: 0;
  backdrop-filter: none !important;
}

/* ─── Canvas toolbar ─────────────────────────────────────── */
.canvas-toolbar {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: center;
  height: 40px;
  padding: 0 !important;
  gap: 0 !important;
  background: var(--surface) !important;
  border-bottom: 1px solid var(--border) !important;
  backdrop-filter: none !important;
  font-size: 12px !important;
  overflow-x: auto;
  overflow-y: hidden;
  /* Remove gradient from styles.css */
  background-image: none !important;
}

/* Cancel styles.css ::before/::after on toolbar */
.canvas-toolbar::before,
.canvas-toolbar::after { content: none !important; background: none !important; }

.toolbar-group {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  height: 100%;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  white-space: nowrap;
}

.toolbar-group:last-child {
  border-right: none;
}

.toolbar-group label {
  font-size: 11.5px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

/* HUD status chips */
#modeLabel,
#mousePos,
#statusText {
  font-size: 11px !important;
  padding: 2px 7px;
  border-radius: var(--r-xs);
  background: var(--bg) !important;
  border: 1px solid var(--border);
  color: var(--text-muted) !important;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace !important;
  font-variant-numeric: tabular-nums !important;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: none !important;
  transform: none !important;
  /* Smooth text transitions for mode changes */
  transition: color 180ms var(--ease), opacity 180ms var(--ease) !important;
}

#modeLabel  { max-width: 110px; font-weight: 600; }
#mousePos   { max-width: 108px; min-width: 90px; }
#statusText { max-width: 200px; }

#zoomLabel,
#iconScaleValue {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace !important;
  font-variant-numeric: tabular-nums !important;
  color: var(--accent) !important;
  font-size: 12px !important;
  font-weight: 700;
  min-width: 40px;
  text-align: center;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  transform: none !important;
}

/* Compact toolbar buttons */
.canvas-toolbar button {
  padding: 3px 8px !important;
  font-size: 11.5px !important;
  height: 26px;
  min-width: 26px;
  box-shadow: none !important;
}

.canvas-toolbar button:hover {
  box-shadow: var(--s-xs) !important;
}

.canvas-toolbar input[type="range"] { width: 80px !important; }

.canvas-toolbar input[type="number"] {
  width: 48px;
  height: 26px;
  padding: 2px 6px !important;
  font-size: 11.5px !important;
}

.canvas-toolbar input[type="color"] {
  width: 26px;
  height: 26px;
  padding: 2px !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-sm) !important;
  background: none !important;
  box-shadow: none !important;
  cursor: pointer;
}

.toolbar-advanced {
  border-left: 1px solid var(--border);
  border-right: none;
  padding-left: 10px;
}

/* Text tool active indicator */
#textToolBtn.active {
  background: var(--accent-bg) !important;
  border-color: rgba(12,122,109,0.30) !important;
  color: var(--accent) !important;
  box-shadow: none !important;
}

/* ─── Canvas Viewport — THE HERO ─────────────────────────── */
.canvas-viewport {
  overflow: auto;
  position: relative;
  min-height: 0;
  overscroll-behavior: contain;
  padding: 2rem !important;

  background-color: #ecedf0 !important;
  background-image:
    radial-gradient(circle, rgba(0,0,0,0.12) 1px, transparent 1px) !important;
  background-size: 20px 20px !important;
}

.canvas-viewport.pan-ready    { cursor: grab; }
.canvas-viewport.pan-ready *  { cursor: inherit !important; }
.canvas-viewport.pan-active   { cursor: grabbing; }
.canvas-viewport.pan-active * { cursor: inherit !important; }

/* The canvas — premium floating paper */
#mainCanvas {
  display: block;
  background: #ffffff;
  border-radius: 1px;
  image-rendering: auto;
  transform-origin: top left;
  border: none !important;
  box-shadow: var(--s-canvas) !important;
}

/* ─── Inline text editor ─────────────────────────────────── */
.canvas-inline-text-editor {
  position: absolute;
  z-index: 8;
  min-width: 88px;
  max-width: min(90vw, 600px);
  width: max-content;
  padding: 3px 8px;
  border: 1.5px solid var(--bad) !important;
  border-radius: var(--r-sm) !important;
  background: rgba(255,255,255,0.97) !important;
  color: var(--bad);
  line-height: 1.2;
  box-shadow: 0 4px 14px rgba(0,0,0,0.12) !important;
  outline: none;
}

/* ─── Camera / candidate lists ───────────────────────────── */
.camera-list,
.candidate-list {
  /* Override styles.css max-height/overflow — panel itself scrolls */
  max-height: none !important;
  overflow: visible !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-md) !important;
  padding: 2px !important;
  background: var(--bg) !important;
  font-size: 12px;
  box-shadow: none !important;
}

.camera-item,
.candidate-item {
  display: block;           /* not flex — HTML uses <br> + block children */
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  line-height: 1.5;
}

.camera-item:last-child,
.candidate-item:last-child { border-bottom: none; }

/* Compact buttons inside list items */
.camera-item button,
.candidate-item button,
.roi-item button {
  padding: 2px 8px !important;
  font-size: 11.5px !important;
  height: 22px;
  box-shadow: none !important;
}

/* ─── Tags ───────────────────────────────────────────────── */
.tag {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 100px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin-left: 3px;
}
.tag.ok   { color: var(--ok);   background: var(--ok-bg); }
.tag.warn { color: var(--warn); background: var(--warn-bg); }
.tag.bad  { color: var(--bad);  background: var(--bad-bg); }

/* ─── PDF preview grid ───────────────────────────────────── */
.pdf-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 6px;
  padding: 6px !important;
  max-height: 188px;
  overflow: auto;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-md) !important;
  background: var(--bg) !important;
  box-shadow: none !important;
}

.pdf-thumb {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-sm);
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  text-align: left;
  box-shadow: none !important;
  transition:
    transform 120ms var(--ease),
    box-shadow 120ms var(--ease),
    border-color 120ms var(--ease);
}

.pdf-thumb:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(12,122,109,0.12) !important;
}

.pdf-thumb:active { transform: scale(0.97); }

.pdf-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 0.72;
  object-fit: cover;
  background: var(--bg);
}

.pdf-thumb span {
  display: block;
  padding: 3px 5px 4px;
  font-size: 10.5px;
  color: var(--text-muted);
}

.pdf-thumb.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent), 0 2px 8px rgba(12,122,109,0.12) !important;
}

/* ─── Template grid ─────────────────────────────────────── */
.template-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  margin-bottom: 6px;
}

.tpl-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  cursor: pointer;
  font-size: 11px;
  color: var(--text);
  box-shadow: none !important;
  transition: border-color 120ms var(--ease), background 120ms var(--ease), transform 120ms var(--ease);
}

.tpl-card:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
  transform: translateY(-1px);
}

.tpl-card:active { transform: scale(0.97); }

.tpl-card.active {
  border-color: var(--accent);
  background: var(--accent-bg);
  box-shadow: inset 0 0 0 1px var(--accent) !important;
}

.tpl-card .tpl-type {
  font-size: 9.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tpl-card .tpl-model {
  font-weight: 600;
  font-size: 12px;
}

.tpl-card .tpl-focal {
  font-size: 10px;
  color: var(--text-muted);
}

/* ─── ROI list ───────────────────────────────────────────── */
.roi-list { display: flex; flex-direction: column; gap: 3px; }

.roi-item {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  font-size: 12px;
}

.roi-item.selected {
  border-color: var(--accent);
  background: var(--accent-bg);
}

/* ─── Metrics panel ──────────────────────────────────────── */
.metrics-panel {
  border: 1px solid var(--border) !important;
  border-radius: var(--r-md) !important;
  padding: 6px 8px !important;
  background: var(--bg) !important;
  box-shadow: none !important;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace !important;
  font-size: 11.5px !important;
}

.metric-good, .text-success { color: var(--ok) !important; }
.metric-warn, .text-warn    { color: var(--warn) !important; }
.metric-bad, .text-danger   { color: var(--bad) !important; }

/* ─── Modal ──────────────────────────────────────────────── */
.contact-modal[hidden] { display: none; }

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
  animation: modal-reveal 180ms var(--ease);
}

@keyframes modal-reveal {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1);    }
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 20, 0.38) !important;
  backdrop-filter: none !important;
}

.contact-modal__dialog {
  position: relative;
  width: min(100%, 440px);
  padding: 1.5rem;
  border: 1px solid var(--border) !important;
  border-radius: var(--r-xl) !important;
  background: var(--surface) !important;
  box-shadow: var(--s-lg) !important;
  backdrop-filter: none !important;
}

.contact-modal__dialog h2 {
  margin: 0 0 1rem;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.contact-modal__dialog p {
  margin: 0.3rem 0;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
}

.contact-modal__dialog button {
  margin-top: 1rem;
  min-width: 88px;
}

/* ─── Monospace HUD — global ─────────────────────────────── */
#mousePos, #modeLabel, #statusText, #zoomLabel, #iconScaleValue,
.canvas-toolbar input[type="number"],
.panel input[type="number"] {
  font-variant-numeric: tabular-nums !important;
}