* {
  margin: 0;
  padding: 0;
  box-sizing: border-box
}

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --bg: #f0f2f5;
  --card: #fff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text2: #64748b;
  --danger: #ef4444;
  --success: #22c55e;
  --telecom: #3b82f6;
  --unicom: #ef4444;
  --mobile: #22c55e;
  --broadcast: #f59e0b;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column
}

/* Header */
.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .06)
}

.logo {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap
}

.tabs {
  display: flex;
  gap: 3px;
  background: var(--bg);
  border-radius: 10px;
  padding: 3px
}

.tab {
  padding: 6px 16px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--text2);
  transition: .15s
}

.tab:hover {
  background: rgba(79, 70, 229, .08)
}

.tab.on {
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .15)
}

.tab[data-op=telecom].on {
  background: var(--telecom)
}

.tab[data-op=unicom].on {
  background: var(--unicom)
}

.tab[data-op=mobile].on {
  background: var(--mobile)
}

.tab[data-op=broadcast].on {
  background: var(--broadcast)
}

.hdr-btns {
  margin-left: auto;
  display: flex;
  gap: 8px
}

.btn {
  padding: 6px 14px;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: .15s;
  display: inline-flex;
  align-items: center;
  gap: 5px
}

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

.btn-p:hover {
  background: var(--primary-hover)
}

.btn-s {
  background: var(--success);
  color: #fff
}

.btn-s:hover {
  background: #16a34a
}

.btn-o {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text)
}

.btn-o:hover {
  border-color: var(--primary);
  color: var(--primary)
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px
}

.btn-xs {
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 5px
}

/* Upper: Canvas + Right Panel */
.upper {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0
}

.canvas-area {
  flex: 1;
  overflow: hidden;
  min-height: 0;
  position: relative;
  user-select: none;
  background: #e2e6ec
}

.canvas-area.panning {
  cursor: grabbing !important
}

.canvas-inner {
  transform-origin: 0 0;
  position: absolute;
  left: 0;
  top: 0
}

.canvas-wrap {
  position: relative;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .12);
  border-radius: 4px;
  line-height: 0
}

#cv {
  display: block
}

.inline-edit {
  display: none;
  position: absolute;
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid #4f46e5;
  outline: none;
  resize: none;
  padding: 2px 4px;
  z-index: 10;
  overflow: hidden;
  border-radius: 2px;
  box-sizing: border-box;
  transform-origin: 0 0;
}

/* Zoom controls */
.zoom-bar {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(30, 41, 59, .85);
  backdrop-filter: blur(6px);
  padding: 5px 10px;
  border-radius: 10px;
  z-index: 10
}

.zoom-bar button {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: .12s
}

.zoom-bar button:hover {
  background: rgba(255, 255, 255, .25)
}

.zoom-val {
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  min-width: 42px;
  text-align: center
}

.right-panel {
  width: 300px;
  background: var(--card);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0
}

.right-panel-scroll {
  flex: 1;
  overflow-y: auto
}

.right-panel-scroll::-webkit-scrollbar {
  width: 5px
}

.right-panel-scroll::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px
}

.sec {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border)
}

.sec-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text2);
  letter-spacing: .5px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center
}

/* Upload - compact */
.upload-row {
  display: flex;
  align-items: center;
  gap: 8px
}

.upload-status {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text2)
}

.upload-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0
}

.upload-dot.yes {
  background: var(--success)
}

.upload-dot.no {
  background: #cbd5e1
}

.upload-info {
  font-size: 11px;
  color: var(--text2);
  margin-top: 4px
}

/* Layer list */
.layers {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 300px;
  overflow-y: auto;
  padding-right: 2px
}

.layers::-webkit-scrollbar {
  width: 4px
}

.layers::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 2px
}

.ly {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  border-radius: 7px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: .12s;
  font-size: 13px
}

.ly:hover {
  border-color: var(--primary)
}

.ly.on {
  border-color: var(--primary);
  background: rgba(79, 70, 229, .05)
}

.ly-text {
  flex: 1;
  min-width: 0;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--text);
  line-height: 1.3;
  max-height: 40px;
  overflow: hidden
}

.ly-color {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid #ccc;
  flex-shrink: 0
}

.empty {
  text-align: center;
  padding: 12px;
  color: var(--text2);
  font-size: 12px
}

/* Font import */
.font-import {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px
}

.font-import input[type=file] {
  flex: 1;
  font-size: 11px;
  padding: 3px
}

.font-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 8px;
  border-radius: 5px;
  background: var(--bg);
  font-size: 11px;
  margin-bottom: 3px
}

.font-item span {
  flex: 1
}

.font-item button {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 13px;
  padding: 1px 3px
}

/* Lower: Properties Panel - 3 columns */
.lower {
  background: var(--card);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  overflow: hidden
}

.prop-inner {
  padding: 10px 20px;
  display: flex;
  gap: 0;
  align-items: flex-start
}

.prop-col {
  flex: 1;
  min-width: 0;
  padding: 0 16px
}

.prop-col:first-child {
  padding-left: 0
}

.prop-col:last-child {
  padding-right: 0
}

.prop-col-divider {
  width: 1px;
  background: var(--border);
  align-self: stretch;
  flex-shrink: 0
}

.prop-col-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  white-space: nowrap
}

.fg {
  margin-bottom: 6px
}

.fg:last-child {
  margin-bottom: 0
}

.fl {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 2px;
  white-space: nowrap
}

.fr {
  display: flex;
  gap: 6px
}

.fr .fg {
  flex: 1;
  min-width: 0
}

input[type=text],
input[type=number],
select,
textarea {
  width: 100%;
  padding: 4px 7px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  background: #fff;
  color: var(--text);
  transition: border .15s
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, .1)
}

textarea {
  resize: vertical;
  min-height: 60px
}

input[type=color] {
  width: 30px;
  height: 26px;
  padding: 2px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  cursor: pointer
}

input[type=range] {
  width: 100%;
  height: 4px;
  -webkit-appearance: none;
  background: var(--border);
  border-radius: 2px;
  outline: none
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer
}

.cg {
  display: flex;
  align-items: center;
  gap: 4px
}

.cg input[type=text] {
  flex: 1;
  min-width: 50px
}

.chk {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap
}

.chk label {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap
}

.gradient-preview {
  height: 16px;
  border-radius: 3px;
  border: 1px solid var(--border);
  margin-top: 4px
}

.range-wrap {
  display: flex;
  align-items: center;
  gap: 5px
}

.range-wrap input[type=range] {
  flex: 1
}

.range-val {
  font-size: 10px;
  color: var(--text2);
  min-width: 28px;
  text-align: right
}

/* No selection hint */
.no-select-hint {
  text-align: center;
  padding: 14px 20px;
  color: var(--text2);
  font-size: 13px
}

/* Modal */
.modal-bg {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .45);
  z-index: 1000;
  align-items: center;
  justify-content: center
}

.modal-bg.show {
  display: flex
}

.modal {
  background: var(--card);
  border-radius: 14px;
  padding: 22px;
  width: 460px;
  max-height: 75vh;
  overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0, 0, 0, .2)
}

.modal-h {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px
}

.tpl-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 14px
}

.tpl {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 9px;
  cursor: pointer;
  transition: .12s
}

.tpl:hover {
  border-color: var(--primary);
  background: rgba(79, 70, 229, .03)
}

.tpl-name {
  font-weight: 600;
  font-size: 14px
}

.tpl-meta {
  font-size: 11px;
  color: var(--text2);
  margin-top: 2px
}

.op-tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  color: #fff
}

.op-tag.telecom {
  background: var(--telecom)
}

.op-tag.unicom {
  background: var(--unicom)
}

.op-tag.mobile {
  background: var(--mobile)
}

.op-tag.broadcast {
  background: var(--broadcast)
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--text);
  color: #fff;
  padding: 10px 22px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  transition: transform .25s;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .2)
}

.toast.show {
  transform: translateX(-50%) translateY(0)
}

/* Login Screen */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .3s
}

.login-screen.hide {
  opacity: 0;
  pointer-events: none
}

.login-card {
  background: #fff;
  border-radius: 16px;
  padding: 40px 36px;
  width: 380px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3)
}

.login-title {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
  color: var(--text)
}

.login-subtitle {
  font-size: 13px;
  color: var(--text2);
  text-align: center;
  margin-bottom: 28px
}

.login-card input[type=text],
.login-card input[type=password] {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 12px;
  transition: border .15s
}

.login-card input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, .15)
}

.login-btn {
  width: 100%;
  padding: 11px;
  font-size: 15px;
  margin-top: 6px;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s
}

.login-btn:hover {
  background: var(--primary-hover)
}

.login-btn:disabled {
  opacity: .6;
  cursor: not-allowed
}

.login-error {
  color: var(--danger);
  font-size: 12px;
  text-align: center;
  min-height: 18px;
  margin-top: 10px
}

.login-hint {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text2);
  text-align: center;
  line-height: 1.6
}

/* User info in header */
.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(79, 70, 229, .08);
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap
}

.hdr-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px
}

/* Change Password Modal */
.pwd-field {
  margin-bottom: 12px
}

.pwd-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  margin-bottom: 4px
}

.pwd-field input {
  width: 100%;
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 13px
}

.pwd-field input:focus {
  outline: none;
  border-color: var(--primary)
}

.modal-btns {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px
}

/* User Management */
.user-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 14px
}

.user-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 13px
}

.user-row .u-name {
  font-weight: 600;
  flex: 1
}

.user-row .u-display {
  color: var(--text2);
  font-size: 12px
}

.user-row .u-role {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  color: #fff
}

.user-row .u-role.admin {
  background: var(--primary)
}

.user-row .u-role.user {
  background: var(--text2)
}

.add-user-form {
  padding: 14px;
  background: var(--bg);
  border-radius: 10px;
  margin-bottom: 14px
}

.add-user-form .form-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px
}

.add-user-form .form-row:last-child {
  margin-bottom: 0
}

.add-user-form .form-row input,
.add-user-form .form-row select {
  flex: 1;
  padding: 6px 10px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: 12px
}

.add-user-form .form-row input:focus,
.add-user-form .form-row select:focus {
  outline: none;
  border-color: var(--primary)
}

/* Layer drag reorder */
.ly.dragging {
  opacity: .4
}

.ly.drag-over-top {
  border-top: 2.5px solid var(--primary)
}

.ly.drag-over-bottom {
  border-bottom: 2.5px solid var(--primary)
}

.ly-btns {
  display: flex;
  gap: 2px;
  flex-shrink: 0
}

.ly-move, .ly-dup, .ly-del {
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: .15s;
  padding: 0;
  color: var(--text2)
}

.ly-move:hover {
  background: rgba(79, 70, 229, .12);
  color: var(--primary)
}

.ly-move:disabled {
  opacity: .25;
  cursor: default;
  background: transparent
}

.ly-move:disabled:hover {
  background: transparent;
  color: var(--text2)
}

.ly-dup:hover {
  background: rgba(34, 197, 94, .12);
  color: var(--success)
}

.ly-del:hover {
  background: rgba(239, 68, 68, .12);
  color: var(--danger)
}

.ly-move svg, .ly-dup svg, .ly-del svg {
  width: 14px;
  height: 14px;
  fill: currentColor
}

/* Canvas size modal */
.canvas-size-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px
}

.canvas-size-row label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text2);
  white-space: nowrap
}

.canvas-size-row input {
  width: 100px
}

/* Export format */
.export-opts {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px
}

.export-opts label {
  font-size: 12px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer
}

.export-quality {
  margin-bottom: 14px
}

.export-quality label {
  font-size: 12px;
  color: var(--text2);
  display: block;
  margin-bottom: 4px
}