/**
 * 🧭 EJPAN Web Common Unified Stylesheet
 * File: y:\css\common.css
 * 통합 컴포넌트: 기본 리셋, 테마 변수, 폼/컨트롤, 상태 바, 지표 카드, 
 * 3D 뷰포트 & HUD, 차트/탭, 모달, 토스트, 슬라이더 채널, 반응형 그리드
 */

/* 1. 전역 테마 CSS 변수 */
:root {
  --bg-color: #060913;
  --bg: #0f172a;
  --panel-bg: #0c1222;
  --panel: #1e293b;
  --card-bg: #111a2e;
  --card-hover: #1e293b;
  --card-border: #1e293b;
  --input-bg: #1e293b;
  --accent: #06b6d4;
  --accent-color: #3b82f6;
  --accent-hover: #0891b2;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --purple: #8b5cf6;
  --text-main: #f8fafc;
  --text-color: #f8fafc;
  --text: #f8fafc;
  --text-sub: #94a3b8;
  --sub-text: #94a3b8;
  --border: #334155;
  --border-color: #334155;
  --canvas-bg: #0a0f1d;
  --red: #ef4444;
  --green: #10b981;
  --blue: #3b82f6;
  --yellow: #f59e0b;
}

/* 라이트 모드 테마 */
body.light-mode, :root.light-mode {
  --bg-color: #f1f5f9;
  --bg: #f8fafc;
  --panel-bg: #ffffff;
  --panel: #ffffff;
  --card-bg: #ffffff;
  --card-hover: #f1f5f9;
  --card-border: #cbd5e1;
  --input-bg: #ffffff;
  --accent: #0284c7;
  --accent-color: #2563eb;
  --accent-hover: #0369a1;
  --text-main: #0f172a;
  --text-color: #0f172a;
  --text: #0f172a;
  --text-sub: #64748b;
  --sub-text: #64748b;
  --border: #cbd5e1;
  --border-color: #cbd5e1;
  --canvas-bg: #e2e8f0;
}

/* 2. 기본 리셋 및 전역 레이아웃 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  user-select: none;
}

form {
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* 기본 컨테이너 래퍼 */
.container {
  width: 100% !important;
  max-width: 1600px !important;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px;
  box-sizing: border-box;
  overflow-y: auto;
  flex: 1;
}

.dashboard-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  padding: 12px 16px;
  gap: 10px;
  box-sizing: border-box;
  overflow-y: auto;
}

h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.panel {
  background-color: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  width: 100%;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 100px;
}

label {
  font-size: 0.8rem;
  color: var(--text-sub);
  font-weight: 600;
}

/* 3. 폼 & 입력 컨트롤 */
select, input, button {
  background-color: var(--input-bg);
  color: var(--text-main);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  outline: none;
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

/* 상단바 네비게이션 및 컨트롤 예외 */
.topbar select,
.topbar input,
.topbar button,
.topbar .nav-btn,
.topbar .login-btn,
#themeSelect {
  width: auto !important;
}

select:focus, input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.2);
}

input[type="text"], input[type="number"] {
  font-family: 'Courier New', Courier, monospace;
}

input[type="range"] {
  accent-color: var(--accent);
  cursor: pointer;
  height: 6px;
  background: var(--input-bg);
}

button {
  font-weight: 700;
  cursor: pointer;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  transition: all 0.2s ease;
  width: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

button:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

/* 버튼 컬러 프리셋 */
.btn-accent { background-color: var(--accent); color: #fff; }
.btn-start { background-color: var(--success); color: #fff; }
.btn-stop { background-color: var(--danger); color: #fff; }
.btn-reset { background-color: #374151; color: #9ca3af; font-size: 0.75rem; padding: 4px 8px; }

/* 4. 상단 메인 헤더 바 & 컨트롤 박스 */
.top-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px 18px;
  flex-shrink: 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  flex-wrap: wrap;
  gap: 12px;
}

.header-left-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #06b6d4, #0284c7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  box-shadow: 0 0 14px rgba(6, 182, 212, 0.4);
}

.title-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.title-main-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.title-tag-badge {
  font-size: 0.7rem;
  font-weight: 700;
  background: rgba(6, 182, 212, 0.15);
  color: #22d3ee;
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.title-sub-text {
  font-size: 0.78rem;
  color: var(--text-sub);
  font-weight: 500;
}

.header-right-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.control-select-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--card-border);
  padding: 6px 12px;
  border-radius: 8px;
}

.control-select-box label {
  font-size: 0.75rem;
  color: var(--text-sub);
  font-weight: 700;
}

.control-select-box select {
  background: transparent;
  color: #38bdf8;
  border: none;
  outline: none;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0;
  width: auto;
}

.control-select-box select option {
  background: #0f172a;
  color: #fff;
}

.btn-header {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  color: #fff;
}

.btn-connect {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}
.btn-connect:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(2, 132, 199, 0.4); }

.btn-demo {
  background: linear-gradient(135deg, #8b5cf6, #6d28d9);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}
.btn-demo:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(139, 92, 246, 0.4); }

.conn-status-badge {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 5. 센서/장치 상태 스트립 */
.sensor-status-strip {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 4px 12px;
  font-size: 0.8rem;
  color: var(--text-sub);
  flex-wrap: wrap;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.status-item b {
  color: var(--text-main);
}

/* 6. 지표 메트릭 카드 그리드 */
.metrics-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  flex-shrink: 0;
}

@media (max-width: 1024px) {
  .metrics-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.metric-card {
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
}
.card-accel::before { background: #ef4444; }
.card-gyro::before { background: #10b981; }
.card-angle::before { background: #3b82f6; }
.card-mag::before { background: #8b5cf6; }

.metric-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-card-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.metric-unit-tag {
  font-size: 0.7rem;
  color: var(--text-sub);
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
}

.metric-values-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.val-sub-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  padding: 4px 6px;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 6px;
  border-bottom: 2px solid transparent;
}

.val-sub-label {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-sub);
  margin-bottom: 2px;
}

.val-sub-num {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
}

.border-red { border-bottom-color: #ef4444; }
.border-green { border-bottom-color: #22c55e; }
.border-blue { border-bottom-color: #3b82f6; }
.border-yellow { border-bottom-color: #eab308; }

/* 7. 3D 뷰포트 & 메인 비주얼라이저 그리드 */
.visualizer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 10px;
  flex: 1;
  min-height: 320px;
}

@media (max-width: 1200px) {
  .visualizer-grid {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }
}

.vis-panel {
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.vis-panel-header {
  padding: 8px 14px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.4);
  flex-shrink: 0;
}

.vis-title {
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-main);
}

.vis-viewport {
  flex: 1;
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 240px;
  background: #0a0f1d;
}

/* 3D 오버레이 HUD (유틸리티 전용 격리) */
.vis-viewport .hud-overlay,
.vis-hud-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.72rem;
  font-family: monospace;
  display: flex;
  flex-direction: column;
  gap: 3px;
  pointer-events: none;
  backdrop-filter: blur(4px);
  z-index: 5;
}

.btn-vis-action {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--card-border);
  color: var(--text-sub);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
  z-index: 5;
}
.btn-vis-action:hover {
  background: #1e293b;
  color: #fff;
}

/* 8. 차트 툴바 & 탭 */
.chart-tabs-bar {
  display: flex;
  gap: 4px;
  align-items: center;
}

.chart-tab-btn {
  background: transparent;
  color: var(--text-sub);
  border: 1px solid transparent;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.chart-tab-btn.active {
  background: #06b6d4;
  color: #0f172a;
  border-color: #22d3ee;
}

.chart-actions-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chart-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(15, 23, 42, 0.3);
  border-bottom: 1px solid var(--card-border);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}
.dot-red { color: #ef4444; }
.dot-green { color: #22c55e; }
.dot-blue { color: #3b82f6; }

canvas {
  width: 100%;
  height: 100%;
  background-color: transparent;
  display: block;
}

/* 9. 최하단 푸터 툴바 */
.bottom-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: var(--panel-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  flex-shrink: 0;
  font-size: 0.8rem;
  color: var(--text-sub);
  flex-wrap: wrap;
  gap: 10px;
}

.footer-buttons-group {
  display: flex;
  gap: 10px;
  align-items: center;
}

.btn-footer {
  background: #1e293b;
  color: var(--text-main);
  border: 1px solid var(--card-border);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}
.btn-footer:hover {
  background: #334155;
}

/* 10. 캘리브레이션 & 팝업 모달 */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal-box {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 20px;
  width: min(440px, 92vw);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #334155;
  padding-bottom: 10px;
}

.modal-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #38bdf8;
}

.modal-close {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.2rem;
  cursor: pointer;
}

.calib-btn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn-calib-cmd {
  background: #1e293b;
  color: #f8fafc;
  border: 1px solid #475569;
  padding: 10px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-calib-cmd:hover {
  background: #0284c7;
  border-color: #38bdf8;
}

/* 11. 토스트 알림 팝업 */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #10b981;
  color: #fff;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* 12. 멀티 채널 그리드 & 카드 (톤/다채널 발생기 등) */
.channel-grid {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: wrap !important;
  gap: 12px !important;
  width: 100% !important;
  margin-top: 8px !important;
  box-sizing: border-box !important;
  align-items: stretch !important;
}

.channel-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: opacity 0.2s;
  flex: 1 1 360px !important;
  max-width: calc(33.333% - 8px) !important;
  min-width: 320px !important;
  box-sizing: border-box !important;
}

.channel-card.disabled {
  opacity: 0.5;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 6px;
  gap: 8px;
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
}

.card-header span {
  font-weight: bold;
  font-size: 0.9rem;
}

.card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #9ca3af;
  flex-wrap: wrap;
  gap: 8px;
}

/* 파형 그리기 컨테이너 */
.draw-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 8px;
  padding: 8px;
  background: #0d0d11;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.draw-canvas {
  width: 100%;
  height: 100px;
  background: #000;
  border-radius: 4px;
  cursor: crosshair;
  touch-action: none;
}

.draw-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: #9ca3af;
}

/* 13. 반응형 미디어 쿼리 */
@media (max-width: 1200px) {
  .channel-card { max-width: calc(50% - 6px) !important; }
}

@media (max-width: 768px) {
  .channel-card { max-width: 100% !important; }
}