/* zeo's work house — Lab / QR Code
   standalone: --zeo-* + --qr-* 토큰 */

:root {
  /* ===== zeo base (외장 v2 동일) ===== */
  --zeo-bg: #FFFFFF;
  --zeo-fg: #111111;
  --zeo-accent: #6B3FA0;
  --zeo-muted: #767676;
  --zeo-border: #E5E5E5;
  /* ===== case (외장 v2 결 매핑) ===== */
  --case-bg: #EBE2CE;
  --case-fg: #2A2620;
  --case-line: #C8BFA8;
  --case-ink: #6E6859;
  --inset: #161310;
  --inset-fg: #E8E1CC;
  --inset-soft: #D7CCB3;
  --raise: #F2EBD9;
  --accent-glow: rgba(107,63,160,.5);
  --led-off: #B3A98F;
  /* ===== QR Code 토큰 (정체성 보존) ===== */
  --qr-default-fg:  #6B3FA0;
  --qr-default-bg:  #FFFFFF;
  --qr-preview-bg:  #FAFAFA;
  --qr-input-bg:    #FFFFFF;
}

:root[data-theme="dark"] {
  --zeo-bg: #0F0F12;
  --zeo-fg: #EDEDED;
  --zeo-accent: #B69CE0;
  --zeo-muted: #9B9B9B;
  --zeo-border: #2A2A2E;
  --case-bg: #221F1A;
  --case-fg: #E8E1CC;
  --case-line: #3A352D;
  --case-ink: #9B948A;
  --inset: #0B0A08;
  --inset-fg: #E8E1CC;
  --inset-soft: #15130F;
  --raise: #2D2822;
  --accent-glow: rgba(182,156,224,.55);
  --led-off: #4A4640;
  --qr-default-fg:  #B69CE0;
  --qr-default-bg:  #FFFFFF;
  --qr-preview-bg:  #1A1A1F;
  --qr-input-bg:    #18181C;
}

:root[data-theme="blue"] {
  --zeo-bg: #232C40;
  --zeo-fg: #DCE3F0;
  --zeo-accent: #B69CE0;
  --zeo-muted: #8995AA;
  --zeo-border: #3A4358;
  --case-bg: #232C40;
  --case-fg: #DCE3F0;
  --case-line: #3A4358;
  --case-ink: #8995AA;
  --inset: #0E121C;
  --inset-fg: #DCE3F0;
  --inset-soft: #1A2233;
  --raise: #2D3852;
  --accent-glow: rgba(182,156,224,.55);
  --led-off: #51596D;
  --qr-default-fg:  #B69CE0;
  --qr-default-bg:  #FFFFFF;
  --qr-preview-bg:  #1A2233;
  --qr-input-bg:    #1A2233;
}

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

body {
  background: var(--case-bg);
  color: var(--case-fg);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  line-height: 1.6;
}

code, pre, kbd, samp, .qr-mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

.zeo-toggle {
  position: fixed;
  top: 48px;
  right: 16px;
  z-index: 9999;
  font-size: 1.4rem;
  padding: 6px 10px;
  border: 1px solid var(--zeo-border);
  border-radius: 8px;
  background: var(--zeo-bg);
  color: var(--zeo-fg);
  cursor: pointer;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.qr-header { text-align: center; margin-bottom: 1.5rem; }
.qr-header h1 { font-size: 1.8rem; margin: 0 0 0.3rem; color: var(--zeo-fg); }
.qr-header h1 .accent { color: var(--zeo-accent); }
.qr-header p { color: var(--zeo-muted); font-size: 0.92rem; margin: 0; }

/* 두 컬럼 — 왼쪽 입력 / 오른쪽 미리보기 */
.qr-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1rem;
}
@media (max-width: 720px) {
  .qr-layout { grid-template-columns: 1fr; }
}

.qr-panel {
  background: var(--raise);
  border: 1px solid var(--case-line);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, var(--raise) 60%, #FFFFFF 40%),
    0 1px 2px color-mix(in oklab, var(--case-bg) 80%, #000000 20%);
}

.qr-panel-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--zeo-accent);
  margin: 0 0 0.7rem;
  letter-spacing: 0.05em;
}

/* 모드 라디오 (5개) */
.qr-mode-radios {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}
.qr-mode-radios label {
  flex: 1;
  min-width: 70px;
  padding: 0.45rem 0.5rem;
  text-align: center;
  border: 1px solid var(--case-line);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  background: var(--raise);
  color: var(--case-fg);
  user-select: none;
  transition: border-color 0.15s, color 0.15s;
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, var(--raise) 60%, #FFFFFF 40%),
    inset 0 -1px 0 color-mix(in oklab, var(--raise) 80%, #000000 20%);
}
.qr-mode-radios label:has(input:checked) {
  border-color: var(--zeo-accent);
  color: var(--zeo-accent);
  background: var(--inset-soft);
  font-weight: 600;
  box-shadow: inset 0 1px 2px color-mix(in oklab, var(--inset-soft) 60%, #000000 40%);
}
.qr-mode-radios input { display: none; }

/* 입력 영역 (모드별) */
.qr-fields > div { display: none; }
.qr-fields > div.active { display: block; }
.qr-fields .qr-field-row { margin-bottom: 0.6rem; }
.qr-fields label {
  display: block;
  font-size: 0.78rem;
  color: var(--zeo-muted);
  margin-bottom: 0.2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.qr-fields input[type="text"],
.qr-fields input[type="email"],
.qr-fields input[type="tel"],
.qr-fields input[type="url"],
.qr-fields textarea {
  width: 100%;
  padding: 0.5rem 0.7rem;
  background: var(--inset-soft);
  color: var(--case-fg);
  border: 1px solid var(--case-line);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.92rem;
  box-shadow: inset 0 1px 2px color-mix(in oklab, var(--inset-soft) 70%, #000000 30%);
}
.qr-fields textarea {
  min-height: 4.5rem;
  resize: vertical;
  font-family: inherit;
}
.qr-fields input:focus,
.qr-fields textarea:focus {
  outline: none;
  border-color: var(--zeo-accent);
}
.qr-fields .qr-hint {
  font-size: 0.78rem;
  color: var(--zeo-muted);
  margin-top: 0.25rem;
  font-style: italic;
}

.qr-radios {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  font-size: 0.9rem;
}
.qr-radios > span {
  color: var(--zeo-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.qr-radios label {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
}

/* 옵션 (ECC / 크기 / 색) */
.qr-options { display: flex; flex-direction: column; gap: 0.7rem; }
.qr-slider-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.qr-slider-row > label {
  font-size: 0.78rem;
  color: var(--zeo-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  min-width: 5.5rem;
}
.qr-slider-row input[type="range"] { flex: 1; }
.qr-slider-row .qr-size-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.86rem;
  color: var(--zeo-fg);
  min-width: 3.5rem;
  text-align: right;
}

.qr-color-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}
.qr-color-row label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--zeo-fg);
}
.qr-color-row input[type="color"] {
  width: 3rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--zeo-border);
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
}

/* 미리보기 */
.qr-preview-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}
.qr-preview {
  background: var(--qr-preview-bg);
  border: 1px solid var(--zeo-border);
  border-radius: 10px;
  padding: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 240px;
  width: 100%;
}
#qr-canvas {
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
  display: block;
}
.qr-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.qr-btn {
  padding: 0.45rem 0.9rem;
  background: var(--raise);
  color: var(--case-fg);
  border: 1px solid var(--case-line);
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.86rem;
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, var(--raise) 60%, #FFFFFF 40%),
    inset 0 -1px 0 color-mix(in oklab, var(--raise) 80%, #000000 20%),
    0 1px 0 color-mix(in oklab, var(--case-bg) 70%, #000000 30%);
}
.qr-btn:hover { border-color: var(--zeo-accent); color: var(--zeo-accent); }
.qr-btn.qr-btn-primary {
  background: var(--zeo-accent);
  color: #fff;
  border-color: var(--zeo-accent);
}
.qr-btn.qr-btn-primary:hover { filter: brightness(1.1); }

.qr-encoded-text {
  width: 100%;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--inset-fg);
  background: var(--inset);
  border: 1px solid var(--case-line);
  border-radius: 6px;
  padding: 0.5rem 0.7rem;
  word-break: break-all;
  max-height: 6rem;
  overflow-y: auto;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.4);
}
.qr-encoded-text.err { color: #D9534F; border-color: #D9534F; }

.qr-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  justify-content: center;
  font-size: 0.78rem;
  color: var(--zeo-muted);
  font-family: 'JetBrains Mono', monospace;
}

.copy-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-30px);
  background: var(--zeo-accent);
  color: #fff;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 10000;
  font-size: 0.92rem;
}
.copy-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.qr-footer {
  text-align: center;
  color: var(--zeo-muted);
  font-size: 0.82rem;
  margin-top: 2rem;
  line-height: 1.7;
}
.qr-footer a { color: var(--zeo-accent); }

/* 모바일 ≤600px */
@media (max-width: 600px) {
  .container { padding: 1.2rem 0.7rem 2rem; }
  .qr-header h1 { font-size: 1.4rem; }
  .qr-mode-radios { gap: 0.3rem; }
  .qr-mode-radios label { padding: 0.35rem 0.4rem; font-size: 0.78rem; }
}