:root {
  --bg: #0f1115;
  --panel: #1a1d24;
  --panel2: #232730;
  --line: #333a47;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --accent: #4f8cff;
  --accent2: #2ec28a;
  --danger: #e0556a;
  --warn: #e0a23a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
header h1 { font-size: 18px; margin: 0; }
.header-right { display: flex; align-items: center; gap: 12px; }
.btn.download {
  background: var(--accent2);
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn.download.ready { box-shadow: 0 0 0 2px rgba(80, 200, 120, 0.4); }
.download-status {
  padding: 8px 24px;
  font-size: 13px;
  color: var(--muted);
  background: var(--panel2);
  border-bottom: 1px solid var(--line);
}
.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.ok { color: var(--accent2); border-color: var(--accent2); }
.badge.ng { color: var(--danger); border-color: var(--danger); }

.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.steps .chip {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--panel2);
  color: var(--muted);
  border: 1px solid var(--line);
}
.steps .chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.steps .chip.done { color: var(--accent2); border-color: var(--accent2); }

main { max-width: 980px; margin: 0 auto; padding: 24px; }
.step h2 { font-size: 20px; margin: 0 0 14px; }
.step h3 { font-size: 14px; margin: 0 0 8px; color: var(--muted); }
.hint { color: var(--muted); font-size: 13px; margin: 0 0 14px; }
code { background: var(--panel2); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
em { color: var(--accent); font-style: normal; }

.row { display: flex; gap: 10px; align-items: center; }
.field { display: block; margin: 0 0 14px; }
.field > span { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }

.text {
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  width: 280px;
}
.text.wide { width: 100%; flex: 1; }
.text.area { width: 100%; font-family: inherit; }

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }
.btn.primary { background: var(--accent2); font-weight: 600; }
.btn.danger { background: var(--danger); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.mode-grid { display: flex; gap: 16px; }
.mode-btn {
  flex: 1;
  padding: 40px;
  font-size: 20px;
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  cursor: pointer;
}
.mode-btn:hover { border-color: var(--accent); }
.mode-btn.active { border-color: var(--accent); background: var(--panel2); }

.dropzone {
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 22px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  background: var(--panel);
  transition: 0.15s;
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dropzone:hover { border-color: var(--accent); }
.dropzone.dragover { border-color: var(--accent); background: var(--panel2); }
.dropzone.filled { border-style: solid; border-color: var(--accent2); color: var(--accent2); }

.drop-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.lang-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.lang-grid .cell h4 { margin: 0 0 6px; font-size: 13px; }
.lang-grid .cell .dropzone { padding: 14px; min-height: 56px; font-size: 12px; }

.design-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}
.design-card .card-head { display: flex; gap: 12px; align-items: flex-end; margin-bottom: 12px; flex-wrap: wrap; }
.design-card .card-head .grow { flex: 1; }
.design-card .four { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 12px; }
.design-card .del { margin-left: auto; }
select.text { width: auto; }

.filelist { list-style: none; padding: 0; margin: 10px 0 0; }
.filelist li {
  font-size: 12px;
  padding: 4px 8px;
  background: var(--panel2);
  border-radius: 6px;
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
}

.result-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  margin-top: 14px;
  font-size: 13px;
  white-space: pre-wrap;
  max-height: 360px;
  overflow: auto;
}
.result-box .ok { color: var(--accent2); }
.result-box .warn { color: var(--warn); }
.result-box .err { color: var(--danger); }
.result-box ul { margin: 6px 0; padding-left: 18px; }

.nav-bar {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--panel);
  border-top: 1px solid var(--line);
}
[hidden] { display: none !important; }