/**
 * ============================================================================
 * 프로젝트: 터널 단면 3D 파라메트릭 모델러 (Tunnel Modeler 3D)
 * 개발자: m12205.tdc.hanmacgroup@gmail.com
 * 저작권: Copyright (c) 2026 m12205.tdc.hanmacgroup@gmail.com. All rights reserved.
 * ============================================================================
 */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+KR:wght@400;500;600;700&display=swap');

:root {
  font-family: 'DM Sans', 'Noto Sans KR', sans-serif;
  color: #e8edf5;
  background: #0b0f15;
  font-synthesis: none;
  font-optical-sizing: auto;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #0b0f15;
  overflow: hidden;
}

/* 상단 바 */
.topbar {
  height: 64px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  border-bottom: 1px solid #202734;
  background: #10151d;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(145deg, #50d6c5, #219b99);
  display: grid;
  place-items: center;
  color: #061514;
  font-weight: 800;
  font-size: 19px;
}

.topbar strong {
  display: block;
  font-size: 14px;
  letter-spacing: -0.2px;
}

.topbar small {
  display: block;
  margin-top: 2px;
  color: #8490a2;
  font-size: 11px;
}

.top-status {
  margin-left: auto;
  font-size: 11px;
  color: #909bac;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #57c9a9;
  box-shadow: 0 0 10px #57c9a955;
}

/* 메인 레이아웃 */
.layout {
  height: calc(100vh - 64px);
  min-height: 600px;
  display: grid;
  grid-template-columns: 340px 1fr;
}

/* 좌측 사이드바 */
.sidebar {
  background: #111720;
  border-right: 1px solid #202734;
  overflow-y: auto;
  padding: 20px 18px 16px;
}

.panel {
  padding: 0 4px 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid #252d39;
}

.section-kicker {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.4px;
  color: #5dc6bb;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.panel h1 {
  font-size: 17px;
  margin: 0 0 14px;
  letter-spacing: -0.5px;
}

.panel h2 {
  font-size: 14px;
  margin: 0;
}

.detection-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.dropzone {
  height: 136px;
  border: 1px dashed #394554;
  border-radius: 9px;
  background: #151d27;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 0.2s;
}

.dropzone:hover,
.dropzone.dragging {
  border-color: #55c8bc;
  background: #16242a;
}

.dropzone input {
  display: none;
}

.upload-icon {
  width: 28px;
  height: 28px;
  border: 1px solid #415465;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #66d4c6;
  font-size: 18px;
  margin-bottom: 10px;
}

.dropzone b {
  font-size: 12px;
  font-weight: 600;
}

.dropzone small {
  font-size: 10px;
  color: #8994a3;
  margin-top: 5px;
}

.sample-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.quiet-button {
  background: none;
  border: 0;
  color: #8794a4;
  font: inherit;
  font-size: 11px;
  padding: 10px 0 0;
  cursor: pointer;
}

.quiet-button:hover {
  color: #5dc6bb;
}

.file-meta {
  font-size: 10px;
  color: #aeb9c8;
  margin: 10px 0 0;
  word-break: break-all;
  padding: 6px 8px;
  background: #151d27;
  border-radius: 5px;
  border-left: 3px solid #57c6ba;
}

.hidden {
  display: none !important;
}

/* 모델 길이 입력 및 프리셋 */
.length-label {
  display: flex;
  justify-content: space-between;
  color: #b9c3d0;
  font-size: 11px;
  margin-bottom: 7px;
}

.length-label span,
.length-input > span {
  color: #8390a1;
}

.length-input {
  display: flex;
  align-items: center;
  gap: 10px;
}

.length-input input {
  width: 100%;
  height: 36px;
  background: #0d131b;
  border: 1px solid #303b49;
  border-radius: 6px;
  padding: 0 10px;
  color: #eef4f8;
  font: inherit;
  font-size: 14px;
}

.length-input input:focus {
  outline: 1px solid #53bcb2;
}

.length-presets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-top: 8px;
}

.preset-len-btn {
  padding: 5px 0;
  border-radius: 5px;
  border: 1px solid #2b3645;
  background: #151d27;
  color: #9ba8b8;
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s;
}

.preset-len-btn:hover {
  border-color: #53bcb2;
  color: #eef4f8;
}

.preset-len-btn.active {
  background: #234946;
  border-color: #57c6ba;
  color: #6ee7b7;
}

.help {
  color: #7f8b9b;
  font-size: 10px;
  margin: 8px 0 12px;
}

.primary-button,
.export-button {
  border: 0;
  border-radius: 6px;
  background: #57c6ba;
  color: #071714;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  padding: 11px 14px;
  cursor: pointer;
  transition: 0.15s;
}

.primary-button {
  width: 100%;
}

.primary-button:disabled,
.export-button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.primary-button:not(:disabled):hover,
.export-button:not(:disabled):hover {
  background: #73ded2;
}

.secondary-button {
  width: 100%;
  margin-top: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid #3c7e77;
  background: #193332;
  color: #8ce4d9;
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.secondary-button:hover {
  background: #214543;
}

/* 구조물 인식 리스트 */
.detection-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.empty-state {
  color: #758191;
  font-size: 10px;
  padding: 12px;
  border: 1px dashed #303946;
  border-radius: 6px;
}

.detection-item {
  border: 1px solid #28323e;
  border-radius: 6px;
  background: #151c25;
  padding: 9px 10px;
  display: grid;
  grid-template-columns: 8px 1fr auto;
  gap: 8px;
  align-items: center;
}

.detection-swatch {
  width: 7px;
  height: 26px;
  border-radius: 4px;
}

.detection-item strong {
  font-size: 11px;
  display: block;
  color: #e2e8f0;
}

.detection-item small {
  display: block;
  color: #818d9d;
  font-size: 10px;
  margin-top: 3px;
  line-height: 1.35;
}

.confidence {
  font-size: 10px;
  font-weight: 700;
  color: #6ee7b7;
}

/* 상세 제원 편집기 */
.param-editor {
  margin-top: 12px;
  padding: 10px;
  background: #0d131b;
  border: 1px solid #28323e;
  border-radius: 7px;
}

.param-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 8px;
}

.param-grid label {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 10px;
  color: #94a3b8;
}

.param-grid input {
  height: 26px;
  padding: 0 6px;
  background: #151d27;
  border: 1px solid #303b49;
  border-radius: 4px;
  color: #f1f5f9;
  font: inherit;
  font-size: 11px;
}

.note {
  font-size: 10px;
  line-height: 1.55;
  color: #798696;
  margin: 12px 0 0;
}

.sidebar-foot {
  font-size: 10px;
  line-height: 1.5;
  color: #677383;
}

/* 우측 워크스페이스 영역 */
.workspace {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.view-tabs {
  height: 52px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  border-bottom: 1px solid #202734;
  background: #10151d;
}

.view-tab {
  height: 100%;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: #818d9b;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 0 4px;
  cursor: pointer;
}

.view-tab.active {
  color: #e9f4f4;
  border-bottom-color: #54c5b8;
}

.view-spacer {
  flex: 1;
}

.viewer-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tool-button {
  height: 30px;
  padding: 0 10px;
  border-radius: 5px;
  border: 1px solid #2b3542;
  background: #171e28;
  color: #cbd5e1;
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s;
}

.tool-button:hover {
  border-color: #54c5b8;
  color: #ffffff;
}

.opacity-slider-box {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  padding: 0 10px;
  border-radius: 5px;
  border: 1px solid #2b3542;
  background: #171e28;
  color: #cbd5e1;
  font-size: 11px;
  font-weight: 600;
  user-select: none;
  transition: border-color 0.15s;
}

.opacity-slider-box:hover {
  border-color: #54c5b8;
}

.opacity-slider-box .slider-label {
  color: #94a3b8;
  font-size: 11px;
  white-space: nowrap;
}

.opacity-slider-box .slider-range {
  -webkit-appearance: none;
  appearance: none;
  width: 75px;
  height: 5px;
  border-radius: 3px;
  background: #334155;
  outline: none;
  cursor: pointer;
  accent-color: #57c6ba;
}

.opacity-slider-box .slider-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #57c6ba;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(87, 198, 186, 0.5);
  transition: transform 0.1s;
}

.opacity-slider-box .slider-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.opacity-slider-box .slider-val {
  min-width: 32px;
  text-align: right;
  color: #57c6ba;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 700;
  font-size: 11px;
}

.theme-switch {
  display: inline-flex;
  border: 1px solid #2b3542;
  border-radius: 5px;
  overflow: hidden;
  background: #0d131b;
}

.theme-btn {
  height: 28px;
  padding: 0 9px;
  border: none;
  background: transparent;
  color: #94a3b8;
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.theme-btn.active {
  background: #57c6ba;
  color: #061514;
}

.icon-button {
  border: 1px solid #2b3542;
  border-radius: 5px;
  background: #171e28;
  color: #9aa5b2;
  width: 30px;
  height: 30px;
  font-size: 16px;
  cursor: pointer;
}

.icon-button:hover {
  border-color: #54c5b8;
  color: #ffffff;
}

.export-button {
  padding: 7px 12px;
  font-size: 11px;
}

/* 뷰포트 및 캔버스 */
.viewport {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background-color: #111827;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 36px 36px;
}

.plot-3d {
  width: 100%;
  height: 100%;
  background: transparent;
}

/* Plotly 내부 WebGL 캔버스 배경 강제 투명 처리 (다크/라이트 배경 정상 작동 보장) */
#placement_3d_plot canvas {
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
}

.canvas-2d {
  width: 100%;
  height: 100%;
  display: block;
  background: #0c1118;
}

.welcome {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
  z-index: 10;
}

.welcome-glyph {
  font-size: 32px;
  color: #56c5ba;
  margin-bottom: 8px;
}

.welcome h2 {
  font-size: 15px;
  margin: 0 0 7px;
  color: #f1f5f9;
}

.welcome p {
  font-size: 11px;
  color: #8390a0;
  margin: 0;
}

/* 우측 상단 전구 표시 세로 레이어 리스트 패널 */
.layer-panel {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 50;
  width: 208px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  color: #f3f4f6;
  font-size: 12px;
  user-select: none;
  padding: 6px 7px;
}

.layer-master-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 7px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.layer-master-left {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  flex-grow: 1;
}

.layer-master-right {
  display: flex;
  align-items: center;
  gap: 5px;
}

.master-bulb {
  font-size: 15px;
  filter: drop-shadow(0 0 5px #f59e0b);
  transition: all 0.2s;
}

.master-label {
  font-weight: 700;
  color: #ffffff;
  font-size: 12px;
}

.minimize-btn {
  background: transparent;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  font-size: 14px;
  padding: 0 2px;
  line-height: 1;
  font-weight: bold;
}

.minimize-btn:hover {
  color: #ffffff;
}

.layer-items-wrapper {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.layer-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 4px 0 2px 0;
}

.layer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 7px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s;
}

.layer-item:hover {
  background: rgba(255, 255, 255, 0.14) !important;
}

.layer-item-left {
  display: flex;
  align-items: center;
  gap: 7px;
}

.bulb-icon {
  font-size: 13px;
  transition: all 0.2s;
}

.color-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.layer-label {
  color: #e5e7eb;
  font-size: 12px;
}

.status-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 8px;
  background: #10b981;
  color: #ffffff;
}

.view-hint {
  position: absolute;
  right: 15px;
  bottom: 14px;
  background: rgba(21, 28, 37, 0.85);
  color: #aab5c3;
  border: 1px solid #2a3541;
  border-radius: 5px;
  font-size: 10px;
  padding: 6px 10px;
  pointer-events: none;
  z-index: 20;
}

.bottom-bar {
  height: 30px;
  border-top: 1px solid #202734;
  background: #10151d;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  color: #758191;
  font-size: 10px;
}

.developer-credit {
  color: #94a3b8;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.canvas-credit {
  position: absolute;
  bottom: 10px;
  right: 14px;
  font-size: 11px;
  font-family: inherit;
  color: rgba(255, 255, 255, 0.45);
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  pointer-events: none;
  z-index: 15;
  user-select: none;
  letter-spacing: 0.2px;
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 290px 1fr;
  }
}