:root {
  --bg: #0c1118;
  --panel: #131b26;
  --panel2: #18222f;
  --input: #0d141d;
  --line: #243142;
  --text: #e3eaf3;
  --muted: #8b9bb0;
  --accent: #35d0ff;
  --accent-strong: #2e7cf6;
  --accent-from: #1ab3e6;
  --on-accent: #002433;
  --tint: #10324a;
  --tint-line: #1f5a73;
  --accent2: #ff4d6d;
  --ok: #21d07a;
  --ok-line: #1d5a3c;
  --warn: #ffb020;
  --warn-line: #5c4615;
  --danger-bg: #4a1420;
  --danger-line: #7a2234;
  --toast: #1d2a3a;
  --backdrop: rgba(0, 0, 0, .6);
  --chk0: #0a0f15;
  --chk1: #121a24;
  --chk2: #0d141d;
  color-scheme: dark;
  --radius: 10px;
}
/* 라이트 모드: 시스템 설정(자동) 또는 상단 토글로 선택 */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --panel2: #f1f4f8;
  --input: #ffffff;
  --line: #d9dfe7;
  --text: #1b2430;
  --muted: #5f6b7a;
  --accent: #0a7fb0;
  --accent-strong: #1f63d6;
  --accent-from: #12a3d6;
  --on-accent: #ffffff;
  --tint: #e2f3fb;
  --tint-line: #9fd3ea;
  --accent2: #d6334f;
  --ok: #138a4c;
  --ok-line: #9fd8b8;
  --warn: #9a6200;
  --warn-line: #ebcf8f;
  --danger-bg: #fde8ec;
  --danger-line: #f1a7b5;
  --toast: #ffffff;
  --backdrop: rgba(20, 30, 45, .35);
  --chk0: #eef1f5;
  --chk1: #e3e8ee;
  --chk2: #f6f8fa;
  color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --panel2: #f1f4f8;
  --input: #ffffff;
  --line: #d9dfe7;
  --text: #1b2430;
  --muted: #5f6b7a;
  --accent: #0a7fb0;
  --accent-strong: #1f63d6;
  --accent-from: #12a3d6;
  --on-accent: #ffffff;
  --tint: #e2f3fb;
  --tint-line: #9fd3ea;
  --accent2: #d6334f;
  --ok: #138a4c;
  --ok-line: #9fd8b8;
  --warn: #9a6200;
  --warn-line: #ebcf8f;
  --danger-bg: #fde8ec;
  --danger-line: #f1a7b5;
  --toast: #ffffff;
  --backdrop: rgba(20, 30, 45, .35);
  --chk0: #eef1f5;
  --chk1: #e3e8ee;
  --chk2: #f6f8fa;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.5 "Pretendard", "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
}
h1, h2, h3 { margin: 0; font-weight: 650; }
h3 { font-size: 15px; margin: 4px 0 10px; }
h3 + h3, .card h3:not(:first-child) { margin-top: 18px; }
small, .muted { color: var(--muted); font-weight: 400; }
.hint { color: var(--muted); font-size: 12px; }
[hidden] { display: none !important; }

.topbar {
  display: flex; align-items: center; gap: 16px; padding: 10px 18px;
  background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand h1 { font-size: 17px; letter-spacing: .2px; }
.brand small { font-size: 11px; }
.logo { width: 30px; height: 30px; border-radius: 8px; background: radial-gradient(circle at 50% 50%, var(--accent2) 0 3px, transparent 4px), radial-gradient(circle, transparent 7px, var(--accent) 8px 10px, transparent 11px), #0b1420; border: 1px solid var(--line); }
.status { display: flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.chip { font-size: 12px; padding: 3px 9px; border-radius: 999px; background: var(--panel2); border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.chip.ok { color: var(--ok); border-color: var(--ok-line); }
.chip.warn { color: var(--warn); border-color: var(--warn-line); }

.layout { display: grid; grid-template-columns: 260px 1fr; min-height: calc(100vh - 53px); }
.sidebar { background: var(--panel); border-right: 1px solid var(--line); padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.side-head { display: flex; justify-content: space-between; align-items: center; }
.side-head h2 { font-size: 14px; }
.storage-box { display: flex; flex-direction: column; gap: 4px; }
.storage-box label { font-size: 12px; color: var(--muted); }
.project-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; overflow: auto; }
.project-list li { padding: 9px 10px; border-radius: 8px; background: var(--panel2); border: 1px solid transparent; cursor: pointer; }
.project-list li:hover { border-color: var(--line); }
.project-list li.active { border-color: var(--accent); }
.project-list li b { display: block; font-size: 13px; }
.project-list li span { font-size: 11px; color: var(--muted); }
.project-list .empty { color: var(--muted); font-size: 12px; background: none; cursor: default; }

.main { padding: 16px 20px 40px; min-width: 0; }
.steps { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.steps button { background: var(--panel); color: var(--muted); border: 1px solid var(--line); padding: 8px 14px; border-radius: 999px; cursor: pointer; font: inherit; }
.steps button b { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--panel2); margin-right: 6px; font-size: 12px; }
.steps button.active { color: var(--text); border-color: var(--accent); }
.steps button.active b { background: var(--accent); color: var(--on-accent); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.card-head h3 { margin: 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: 14px; align-items: start; }
.grid2 > .card { margin-bottom: 0; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; margin-top: 10px; }
.row.center { justify-content: center; margin-top: 10px; }
.row.tight { flex-wrap: nowrap; }
.grow { flex: 1; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; min-width: 0; }
.field label { font-size: 12px; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0 12px; }
.form-grid.one { grid-template-columns: 1fr; min-width: 420px; }
.form-grid .span2 { grid-column: span 2; }

input, select, textarea {
  background: var(--input); color: var(--text); border: 1px solid var(--line); border-radius: 7px;
  padding: 7px 9px; font: inherit; width: 100%; min-width: 0;
}
input[type=checkbox] { width: auto; accent-color: var(--accent); }
input[type=range] { padding: 0; accent-color: var(--accent); }
input[type=color] { padding: 2px; height: 34px; }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.btn { background: var(--panel2); color: var(--text); border: 1px solid var(--line); padding: 8px 14px; border-radius: 8px; cursor: pointer; font: inherit; white-space: nowrap; }
.btn:hover { border-color: var(--accent); }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn.primary { background: linear-gradient(135deg, var(--accent-from), var(--accent-strong)); border-color: transparent; color: #fff; font-weight: 600; }
.btn.danger { background: var(--danger-bg); border-color: var(--danger-line); }
.btn.ghost { background: transparent; }
.btn:disabled { opacity: .5; cursor: wait; }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chips button { background: var(--panel2); color: var(--muted); border: 1px dashed var(--line); padding: 4px 10px; border-radius: 999px; cursor: pointer; font: inherit; font-size: 12px; }
.chips button:hover { color: var(--text); border-color: var(--accent); }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--tint); color: var(--accent); margin-left: 6px; font-weight: 500; }
.refine { display: flex; gap: 6px; flex: 1; max-width: 560px; }

.preview-strip { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; }
.thumb { position: relative; background: var(--chk0) repeating-conic-gradient(var(--chk1) 0 25%, var(--chk2) 0 50%) 0 0 / 16px 16px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; cursor: pointer; aspect-ratio: 1; }
.thumb img, .thumb canvas { width: 100%; height: 100%; object-fit: contain; display: block; }
.thumb .cap { position: absolute; left: 0; right: 0; bottom: 0; font-size: 11px; padding: 3px 6px; background: linear-gradient(transparent, rgba(0,0,0,.8)); display: flex; justify-content: space-between; gap: 4px; }
.thumb .cap b { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.thumb .ov { position: absolute; border: 1.5px solid var(--accent2); box-shadow: 0 0 0 1px rgba(0,0,0,.5); pointer-events: none; }
.serial-box { background: var(--input); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; gap: 6px; }
.serial-box .row.tight input { max-width: 110px; }
.alloc.tol { grid-template-columns: 1fr 90px 100px; margin-top: 8px; }
.svg-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.svg-tile { display: flex; flex-direction: column; gap: 4px; }
.svg-tile .row { justify-content: center; gap: 4px; }
.svg-tile .state { font-size: 11px; color: var(--muted); text-align: center; }
.svg-tile .state.err { color: var(--accent2); }
.svg-edit { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 12px; }
.svg-edit textarea { font: 12px/1.4 Consolas, monospace; }
.svg-edit .thumb { cursor: default; }
code { background: var(--input); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
@media (max-width: 900px) { .svg-edit { grid-template-columns: 1fr; } }
.notes { color: var(--muted); font-size: 12px; white-space: pre-wrap; }

.defect-list { display: flex; flex-direction: column; gap: 8px; }
.defect { display: grid; grid-template-columns: 28px 92px 1fr; gap: 12px; padding: 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel2); align-items: start; }
.defect.off { opacity: .45; }
.defect .thumb { width: 92px; }
.defect .dgrid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 0.8fr 0.7fr auto; gap: 8px; }
.defect .dgrid .field { margin: 0; }
.defect textarea { margin-top: 6px; font-size: 12px; }
.sev-minor { color: var(--ok); } .sev-major { color: var(--warn); } .sev-critical { color: var(--accent2); }
.vis { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 6px; }
.vis span { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--input); border: 1px solid var(--line); color: var(--muted); }
.vis span.on { color: var(--accent); border-color: var(--tint-line); }

.seg { display: flex; flex-wrap: wrap; gap: 0; margin-bottom: 10px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; width: fit-content; max-width: 100%; }
.seg button { background: transparent; color: var(--muted); border: 0; border-right: 1px solid var(--line); padding: 7px 12px; cursor: pointer; font: inherit; font-size: 13px; }
.seg button:last-child { border-right: 0; }
.seg button.on { background: var(--tint); color: var(--accent); }
.checks { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
.checks label { display: flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel2); cursor: pointer; }
.check { display: flex; align-items: center; gap: 8px; margin: 6px 0; cursor: pointer; }
.check.inline { margin: 0; }
.alloc { display: grid; grid-template-columns: 1fr 90px 70px; gap: 4px 10px; align-items: center; font-size: 13px; margin-bottom: 10px; }
.alloc .h { color: var(--muted); font-size: 11px; }
.alloc input { padding: 4px 6px; }
.summary { background: var(--input); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; font-size: 13px; }
.summary b { color: var(--accent); }

.progress { height: 8px; background: var(--input); border-radius: 99px; overflow: hidden; margin: 6px 0; border: 1px solid var(--line); }
.progress div { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-strong)); transition: width .2s; }
.class-stats { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.class-stats span { font-size: 12px; padding: 3px 9px; border-radius: 999px; background: var(--panel2); border: 1px solid var(--line); cursor: pointer; }
.class-stats span b { color: var(--accent); margin-left: 4px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.gallery select, .card-head select { width: auto; }

.dlg { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 16px; max-width: 95vw; }
.dlg::backdrop { background: var(--backdrop); }
.dlg.wide { width: 1100px; }
.dlg-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.img-detail { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 14px; }
.canvas-wrap { background: var(--chk0) repeating-conic-gradient(var(--chk1) 0 25%, var(--chk2) 0 50%) 0 0 / 16px 16px; border-radius: 8px; display: grid; place-items: center; min-height: 300px; }
.canvas-wrap canvas { max-width: 100%; max-height: 72vh; }
.img-info { font-size: 13px; display: flex; flex-direction: column; gap: 10px; }
.kv { display: grid; grid-template-columns: 80px 1fr; gap: 2px 8px; font-size: 12px; }
.kv span:nth-child(odd) { color: var(--muted); }
.boxitem { border-left: 3px solid var(--accent2); padding: 6px 10px; background: var(--panel2); border-radius: 0 6px 6px 0; margin-bottom: 6px; font-size: 12px; }
.boxitem b { display: block; font-size: 13px; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(80px); background: var(--toast); box-shadow: 0 6px 24px rgba(0,0,0,.18); border: 1px solid var(--line); padding: 10px 16px; border-radius: 8px; transition: transform .25s; z-index: 20; max-width: 80vw; }
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.err { border-color: var(--accent2); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .grid2 { grid-template-columns: 1fr; }
  .defect { grid-template-columns: 24px 1fr; }
  .defect .thumb { display: none; }
  .defect .dgrid { grid-template-columns: 1fr 1fr; }
  .img-detail { grid-template-columns: 1fr; }
  .form-grid.one { min-width: 0; }
  .main { padding: 12px 16px 40px; }
}

.theme-btn { min-width: 38px; padding: 6px 10px; }
.toast { color: var(--text); }