/*
  모델: 사용 안 함
  기술: CSS3 (라이트 테마, 반응형 그리드/플렉스 레이아웃)
  라이브러리: 사용 안 함
*/
:root {
  --bg: #f5f7fa; --surface: #fff; --surface-2: #f8fafc; --border: #e3e8ef; --border-strong: #cbd5e1;
  --text: #1f2933; --muted: #64748b; --primary: #2563eb; --primary-dark: #1d4ed8; --primary-soft: #eff4ff;
  --ok: #15803d; --ok-soft: #ecfdf3; --err: #b91c1c; --err-soft: #fef2f2; --warn: #92400e; --warn-soft: #fffbeb;
  --code-bg: #f1f5f9; --radius: 12px;
  --shadow: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.08);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.6 "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 16px; }
code, pre, .mono { font-family: Consolas, "D2Coding", ui-monospace, monospace; }
code { background: var(--code-bg); border-radius: 4px; padding: 1px 5px; font-size: 12.5px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.hidden { display: none !important; }
.pad { padding: 16px; margin: 0; }

/* 최상단 모델·기술 표시 */
.techbar { background: #eef2f7; border-bottom: 1px solid var(--border); font-size: 12.5px; color: #334155; }
.techbar-inner { display: flex; flex-wrap: wrap; gap: 4px 20px; padding: 7px 16px; }
.tb-item { display: inline-flex; gap: 6px; align-items: baseline; }
.tb-item b { color: var(--primary-dark); font-weight: 700; white-space: nowrap; }

/* 상단 바 */
.appbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.appbar-inner { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo { width: 36px; height: 36px; border-radius: 9px; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 800; }
.brand h1 { font-size: 18px; margin: 0; line-height: 1.3; }
.brand .sub { margin: 0; color: var(--muted); font-size: 12.5px; }
.appnav { display: flex; gap: 6px; }
.appnav a { color: var(--text); text-decoration: none; padding: 7px 12px; border: 1px solid var(--border); border-radius: 8px; font-weight: 600; font-size: 13px; background: var(--surface); }
.appnav a:hover { border-color: #bfdbfe; color: var(--primary-dark); background: var(--primary-soft); }

/* KPI */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 20px 0 16px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.kpi-label { color: var(--muted); font-size: 12.5px; font-weight: 600; }
.kpi strong { font-size: 18px; display: flex; align-items: center; gap: 8px; }
.kpi-meta { color: var(--muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); display: inline-block; }
.dot.ok { background: #22c55e; box-shadow: 0 0 0 3px var(--ok-soft); }
.dot.err { background: #ef4444; box-shadow: 0 0 0 3px var(--err-soft); }

/* 패널 */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 16px; overflow: hidden; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.panel-head h2 { font-size: 15px; margin: 0; }
.tabs { display: inline-flex; background: #e9eef5; border-radius: 9px; padding: 3px; }
.tab { border: 0; background: transparent; padding: 6px 14px; border-radius: 7px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; }
.tab.active { background: var(--surface); color: var(--primary-dark); box-shadow: var(--shadow); }
.tabpane { padding: 16px; }
.desc { margin: 0 0 14px; }
.note { margin: 14px 0 0; color: var(--muted); font-size: 13px; }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 12px; }
.step { border: 1px solid var(--border); border-radius: 10px; padding: 14px; min-width: 0; }
.step h3 { font-size: 14px; margin: 0 0 6px; display: flex; align-items: center; gap: 8px; }
.step h3.mt { margin-top: 14px; }
.step p { margin: 0 0 8px; font-size: 13px; }
.step ol { margin: 0; padding-left: 18px; }
.step li { margin: 3px 0; }
.num { width: 22px; height: 22px; border-radius: 6px; background: var(--primary-soft); color: var(--primary-dark); font-size: 12px; font-weight: 800; display: inline-grid; place-items: center; flex: none; }

.code { position: relative; }
.code pre { margin: 0; background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; padding-right: 64px; font-size: 12.5px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
.copy { position: absolute; top: 6px; right: 6px; border: 1px solid var(--border-strong); background: var(--surface); border-radius: 6px; padding: 2px 9px; font: inherit; font-size: 12px; cursor: pointer; color: var(--text); }
.copy:hover { border-color: var(--primary); color: var(--primary-dark); }
.copy.inline { position: static; flex: none; }

.endpoint-list { display: grid; gap: 8px; margin-bottom: 14px; }
.endpoint { display: flex; align-items: center; gap: 12px; border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: var(--surface-2); }
.ep-body { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.ep-label { font-size: 12px; color: var(--muted); font-weight: 600; }
.ep-url { background: transparent; padding: 0; font-size: 13.5px; color: var(--text); word-break: break-all; }
.tag { font-size: 11.5px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: #e9eef5; color: var(--muted); flex: none; }
.tag-primary { background: var(--primary-soft); color: var(--primary-dark); }
.alert { border: 1px solid #fcd34d; background: var(--warn-soft); color: var(--warn); border-radius: 10px; padding: 12px 14px; margin-bottom: 14px; font-size: 13px; }
.alert .code { margin-top: 8px; }

/* 도구 */
.tool-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); min-height: 420px; }
.tool-list { border-right: 1px solid var(--border); background: var(--surface-2); }
.tool-item { display: block; width: 100%; text-align: left; border: 0; border-bottom: 1px solid var(--border); background: transparent; padding: 11px 16px; font: inherit; cursor: pointer; color: var(--text); }
.tool-item:hover { background: #f1f5f9; }
.tool-item.active { background: var(--surface); box-shadow: inset 3px 0 0 var(--primary); }
.tool-item .t-name { font-family: Consolas, ui-monospace, monospace; font-weight: 700; font-size: 13px; }
.tool-item .t-title { display: block; color: var(--muted); font-size: 12.5px; }
.tool-detail { padding: 16px; min-width: 0; }
.td-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.td-head h3 { margin: 0; font-size: 16px; }
.td-head .mono { color: var(--muted); font-size: 13px; }
.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { font-size: 11.5px; font-weight: 700; padding: 2px 8px; border-radius: 6px; background: var(--ok-soft); color: var(--ok); border: 1px solid #bbf7d0; }
.badge.gray { background: #f1f5f9; color: #475569; border-color: var(--border); }
.td-desc { margin: 8px 0 14px; }

.form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px 12px; align-items: end; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); }
.field label { display: block; font-size: 12.5px; font-weight: 600; margin-bottom: 4px; }
.field label .mono { color: var(--muted); font-weight: 400; }
.field input, .field select { width: 100%; height: 36px; border: 1px solid var(--border-strong); border-radius: 8px; padding: 0 10px; font: inherit; background: var(--surface); color: var(--text); }
.field input:focus, .field select:focus { outline: 2px solid #bfdbfe; border-color: var(--primary); }
.field .hint { font-size: 11.5px; color: var(--muted); margin-top: 3px; }
.form-actions { display: flex; gap: 8px; }
.btn { height: 36px; border: 1px solid var(--primary); background: var(--primary); color: #fff; font: inherit; font-weight: 700; padding: 0 18px; border-radius: 8px; cursor: pointer; }
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .6; cursor: progress; }
.btn.ghost { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn.ghost:hover { background: #f1f5f9; }
.no-input { color: var(--muted); font-size: 13px; }

.result { margin-top: 14px; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.result-head .mono { font-size: 12.5px; color: var(--muted); word-break: break-all; }
.status-ok { color: var(--ok); font-weight: 700; }
.status-err { color: var(--err); font-weight: 700; }
.error-box { border: 1px solid #fecaca; background: var(--err-soft); color: var(--err); border-radius: 8px; padding: 10px 12px; white-space: pre-wrap; word-break: break-word; }
.summary { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-bottom: 10px; }
.sum-item { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-width: 0; }
.sum-item span { display: block; font-size: 11.5px; color: var(--muted); }
.sum-item b { font-size: 14px; word-break: break-word; }
.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 8px; max-height: 460px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { position: sticky; top: 0; background: #f1f5f9; font-weight: 700; z-index: 1; }
td.n { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: #f8fafc; }
details.raw { margin-top: 10px; }
details.raw summary { cursor: pointer; color: var(--muted); font-weight: 600; font-size: 13px; }
details.raw pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 12px; max-height: 360px; overflow: auto; }

.foot { color: var(--muted); font-size: 12px; padding: 8px 16px 28px; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px); background: #1f2933; color: #fff; padding: 8px 16px; border-radius: 8px; font-size: 13px; opacity: 0; transition: .2s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 760px) {
  .tool-layout { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .tool-list { border-right: 0; border-bottom: 1px solid var(--border); display: flex; overflow-x: auto; }
  .tool-item { border-bottom: 0; border-right: 1px solid var(--border); white-space: nowrap; width: auto; }
  .tool-item.active { box-shadow: inset 0 -3px 0 var(--primary); }
  .steps { grid-template-columns: 1fr; }
}