* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  overflow: hidden;
  font-family: "Malgun Gothic", "맑은 고딕", "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
#app {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
}

/* title bar */
.title-bar {
  height: 30px;
  background: #B7472A;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  flex: 0 0 auto;
}
.tb-icon { width: 16px; height: 16px; }

/* ribbon tabs */
.ribbon-tabs {
  background: #C43E1C;
  color: #fbe3da;
  display: flex;
  gap: 2px;
  font-size: 12px;
  padding: 4px 8px 0 8px;
  flex: 0 0 auto;
  overflow-x: auto;
  white-space: nowrap;
}
.ribbon-tabs span {
  padding: 5px 10px;
  border-radius: 3px 3px 0 0;
}
.ribbon-tabs span.active {
  background: #fff;
  color: #C43E1C;
  font-weight: 600;
}

/* ribbon */
.ribbon {
  background: #fdf3ef;
  border-bottom: 1px solid #e3c9bd;
  display: flex;
  align-items: stretch;
  padding: 4px 6px;
  gap: 6px;
  flex: 0 0 auto;
  overflow-x: auto;
}
.ribbon-group {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  min-width: 46px;
}
.ribbon-row {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-content: center;
  flex: 1;
}
.font-row { gap: 2px; }
.ribbon-label {
  font-size: 9px;
  color: #6b5049;
  margin-top: 2px;
  white-space: nowrap;
}
.ribbon .ico {
  font-size: 13px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  color: #4a2f28;
}
.ribbon .ico.i { font-style: italic; }
.ribbon .ico.u { text-decoration: underline; }
.ribbon-sep {
  width: 1px;
  background: #e3c9bd;
  margin: 2px 2px;
}
.fake-select {
  font-size: 11px;
  border: 1px solid #e3c9bd;
  border-radius: 2px;
  padding: 1px 2px;
  color: #333;
  background: #fff;
}
.fake-select.wide { width: 84px; }

/* editor layout */
.editor {
  flex: 1;
  display: flex;
  min-height: 0;
  background: #e8e2df;
}

.slide-rail {
  width: 76px;
  flex: 0 0 auto;
  overflow-y: auto;
  background: #f2eeec;
  border-right: 1px solid #d8d0cc;
  padding: 8px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.rail-item {
  width: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.rail-num {
  font-size: 9px;
  color: #7a716c;
}
.rail-thumb {
  width: 60px;
  height: 34px;
  background: #fff;
  border: 2px solid transparent;
  outline: 1px solid #d8d0cc;
  font-size: 5px;
  padding: 3px 4px;
  overflow: hidden;
  color: #444;
  line-height: 1.3;
}
.rail-item.active .rail-thumb {
  border-color: #C43E1C;
}

.slide-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  overflow: auto;
}
.slide-canvas {
  width: min(100%, 640px);
  aspect-ratio: 16 / 9;
  background: #fff;
  box-shadow: 0 1px 6px rgba(0,0,0,0.18);
  padding: 8% 9%;
  display: flex;
  flex-direction: column;
  gap: 4%;
}
.slide-title {
  font-size: clamp(14px, 4vw, 26px);
  font-weight: 700;
  color: #2b2320;
  outline: none;
  border-bottom: 2px solid #C43E1C;
  padding-bottom: 4px;
}
.slide-body {
  flex: 1;
  font-size: clamp(10px, 2.6vw, 15px);
  color: #423a36;
  outline: none;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow: auto;
}

/* status bar */
.status-bar {
  height: 24px;
  background: #C43E1C;
  color: #fbe3da;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  font-size: 11px;
  flex: 0 0 auto;
}
.status-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.view-ico {
  font-size: 12px;
  cursor: pointer;
  opacity: 0.9;
}
.view-ico.play {
  font-size: 14px;
}
.zoom-label {
  font-size: 10px;
  opacity: 0.85;
}