/* 한누네 세무 도구 - 자체 포함 스타일 (외부 CDN / 웹폰트 없음)
 *
 * 방향: 조용하고 정밀한 문서 도구.
 * - 그림자 없음, 그라데이션 없음, 이모지 없음. 여백 / 타이포 / 헤어라인으로만 위계를 만든다.
 * - 악센트 색은 딱 하나 (딥 틸). 링크 / 주요 버튼 / 포커스 링에만 쓴다.
 * - 숫자가 나오는 곳은 전부 tabular-nums (금액 / 사업자등록번호 자릿수 정렬).
 */

:root {
  color-scheme: light dark;

  --canvas: #fbfbfa;
  --surface: #ffffff;
  --surface-sunken: #f6f5f2;

  --ink: #1a1a19;
  --ink-muted: #6c6c66;
  --ink-faint: #98978f;

  --line: #e6e4df;
  --line-strong: #d1cec6;

  --accent: #1d4a44;
  --accent-strong: #143631;
  --accent-tint: #eef3f1;
  --accent-contrast: #ffffff;

  --ok: #3f7a5c;
  --down: #a94a2f;
  --busy: #8a7420;

  --danger: #a33227;
  --danger-tint: #fbf1f0;
  --danger-line: #e8ccc7;
  --warn: #8a5a1c;
  --warn-tint: #fbf5ec;
  --warn-line: #e9dcc3;

  --radius: 6px;
  --radius-lg: 8px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", "맑은 고딕", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", "D2Coding", Consolas, Menlo,
    "DejaVu Sans Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #141413;
    --surface: #1b1b19;
    --surface-sunken: #212020;

    --ink: #ecebe6;
    --ink-muted: #9e9d95;
    --ink-faint: #77766e;

    --line: #2e2d2a;
    --line-strong: #46443f;

    --accent: #7fc4b8;
    --accent-strong: #a7dcd2;
    --accent-tint: #1c2b28;
    --accent-contrast: #11211e;

    --ok: #6fb392;
    --down: #d98b6f;
    --busy: #c5ac5d;

    --danger: #e08d80;
    --danger-tint: #271b19;
    --danger-line: #4a332e;
    --warn: #d4ad6c;
    --warn-tint: #23201a;
    --warn-line: #443a2a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: -0.003em;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

h1, h2, h3 {
  letter-spacing: -0.012em;
  line-height: 1.25;
  margin: 0;
  font-weight: 600;
}

/* ── 헤더 (캔버스와 같은 배경 + 하단 헤어라인) ───────────────── */

.site-head {
  border-bottom: 1px solid var(--line);
  background: var(--canvas);
}

.site-head-inner,
.site-foot-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-head-inner {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  color: var(--ink);
  text-decoration: none;
}
.wordmark:hover { text-decoration: none; }
.wordmark:hover .wordmark-org { color: var(--ink-muted); }

.wordmark-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.wordmark-org {
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color .15s ease;
}

.site-nav { display: flex; gap: 20px; }

.site-nav a {
  font-size: 13.5px;
  color: var(--ink-muted);
  text-decoration: none;
}
.site-nav a:hover { color: var(--ink); text-decoration: none; }

/* ── 레이아웃 ─────────────────────────────────────────────── */

.wrap {
  flex: 1;
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

.site-foot {
  border-top: 1px solid var(--line);
}

.site-foot-inner {
  padding-top: 20px;
  padding-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--ink-faint);
  font-size: 12.5px;
}

.dot-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line-strong);
  display: inline-block;
}

/* ── 페이지 머리말 ────────────────────────────────────────── */

.page-head { margin-bottom: 32px; }

.page-head h1 {
  font-size: 30px;
  margin: 0 0 6px;
}

.page-head .lede {
  margin: 0;
  color: var(--ink-muted);
  font-size: 15px;
}

.eyebrow {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-muted);
  font-size: 13.5px;
  text-decoration: none;
  margin-bottom: 14px;
}
.back:hover { color: var(--ink); text-decoration: none; }
.back svg { width: 12px; height: 12px; }

.muted { color: var(--ink-muted); margin: 0; }
.small { font-size: 13px; }
.nums { font-variant-numeric: tabular-nums; }

/* ── 카드 / 표면 ──────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  margin-bottom: 24px;
}

/* ── 도구 목록 ────────────────────────────────────────────── */

.tool-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px 22px 20px;
  color: inherit;
  text-decoration: none;
  transition: border-color .15s ease, background-color .15s ease;
}

.tool-card:hover {
  border-color: var(--line-strong);
  background: var(--surface-sunken);
  text-decoration: none;
}
.tool-card:hover .tool-go { color: var(--accent-strong); }
.tool-card:hover .tool-go svg { transform: translateX(2px); }

.tool-card h2 {
  font-size: 17px;
  margin: 0 0 6px;
}

.tool-card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.tool-go {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}
.tool-go svg { width: 12px; height: 12px; transition: transform .15s ease; }

.tool-card-empty {
  border-style: dashed;
  background: transparent;
}
.tool-card-empty:hover { background: transparent; border-color: var(--line); }
.tool-card-empty h2 { color: var(--ink-muted); font-weight: 500; }

/* ── 상태 표시 (절제된 인라인) ─────────────────────────────── */

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  flex-wrap: wrap;
  padding: 0;
  margin: 0 0 6px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--ink-faint);
}
.status-ok .status-dot { background: var(--ok); }
.status-down .status-dot { background: var(--down); }
.status-busy .status-dot { background: var(--busy); }

.status-label { color: var(--ink-muted); }

.status-value { color: var(--ink); font-weight: 600; }
.status-down .status-value { color: var(--down); }

.status-detail { color: var(--ink-faint); }
.status-detail::before { content: "· "; }

/* ── 알림 ─────────────────────────────────────────────────── */

.alert {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 16px;
  margin-bottom: 20px;
  font-size: 13.5px;
  line-height: 1.6;
}
.alert strong { font-weight: 600; }

.alert-error {
  background: var(--danger-tint);
  border-color: var(--danger-line);
  color: var(--danger);
}
.alert-warn {
  background: var(--warn-tint);
  border-color: var(--warn-line);
  color: var(--warn);
}

/* ── 폼 ───────────────────────────────────────────────────── */

.field { display: block; margin: 0 0 26px; }
.field:last-of-type { margin-bottom: 22px; }

fieldset.field { border: 0; padding: 0; margin-inline: 0; }

.field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 10px;
  padding: 0;
}

.hint { color: var(--ink-muted); font-size: 12.5px; }

/* 드롭존 */
.dropzone {
  display: block;
  position: relative;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface-sunken);
  padding: 30px 22px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.dropzone:hover { border-color: var(--accent); }
.dropzone.is-dragging {
  border-color: var(--accent);
  border-style: solid;
  background: var(--accent-tint);
}
.dropzone.has-file {
  border-style: solid;
  border-color: var(--line-strong);
  background: var(--surface);
  text-align: left;
}

.dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dropzone-icon {
  width: 22px;
  height: 22px;
  color: var(--ink-faint);
  margin-bottom: 10px;
}
.dropzone.is-dragging .dropzone-icon { color: var(--accent); }

.dropzone-primary {
  display: block;
  font-size: 14.5px;
  color: var(--ink);
  font-weight: 500;
}
.dropzone-primary em { font-style: normal; color: var(--accent); font-weight: 600; }

.dropzone-secondary {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.dropzone-file {
  display: none;
  align-items: center;
  gap: 12px;
  text-align: left;
}
.dropzone.has-file .dropzone-file { display: flex; }
.dropzone.has-file .dropzone-empty { display: none; }

.dropzone-file-icon {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.dropzone-file-name {
  display: block;
  font-size: 14px;
  font-weight: 500;
  word-break: break-all;
}

.dropzone-file-meta {
  display: block;
  font-size: 12.5px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.dropzone-change {
  margin-left: auto;
  font-size: 12.5px;
  color: var(--accent);
  white-space: nowrap;
}

/* 선택지 (결과 형식) */
.choice {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 8px;
  cursor: pointer;
  background: var(--surface);
  transition: border-color .15s ease, background-color .15s ease;
}
.choice:hover { border-color: var(--line-strong); }
.choice:has(input:checked),
.choice.is-selected {
  border-color: var(--accent);
  background: var(--accent-tint);
}
.choice input { margin: 6px 0 0; accent-color: var(--accent); }
.choice-title { display: block; font-size: 14.5px; font-weight: 600; }
.choice-desc { display: block; font-size: 12.5px; color: var(--ink-muted); }

/* 버튼 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  padding: 10px 18px;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease, color .15s ease;
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.btn svg { width: 13px; height: 13px; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
}
.btn-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: var(--accent-contrast);
}

.btn-block { width: 100%; }

/* ── 로그인 ───────────────────────────────────────────────── */

.login {
  max-width: 360px;
  margin: 40px auto 0;
}

.login h1 {
  font-size: 24px;
  margin: 0 0 6px;
}

.login .lede {
  margin: 0 0 26px;
  color: var(--ink-muted);
  font-size: 14px;
}

.login-form label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

.login-form input[type="password"] {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-family: inherit;
  font-size: 15px;
  margin-bottom: 16px;
  transition: border-color .15s ease;
}
.login-form input[type="password"]:hover { border-color: var(--ink-faint); }
.login-form input[type="password"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

/* ── 진행 상황 ────────────────────────────────────────────── */

.progress {
  display: flex;
  align-items: center;
  gap: 14px;
}

.progress-stage {
  font-size: 14.5px;
  font-weight: 600;
}

.progress-count {
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--line-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2.4s; }
  * { transition: none !important; }
}

/* ── 결과 (문서 표면) ─────────────────────────────────────── */

.doc-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.doc-head h2 {
  font-size: 15px;
  margin: 0 0 3px;
}

.doc-meta {
  margin: 0;
  font-size: 12.5px;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.document {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  max-height: 62vh;
  overflow-y: auto;
  tab-size: 4;
}

/* ── 안내 ─────────────────────────────────────────────────── */

.note {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  font-size: 13.5px;
  color: var(--ink-muted);
}

.note h3 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 10px;
}

.note ul { margin: 0; padding-left: 17px; }
.note li { margin-bottom: 5px; }
.note li::marker { color: var(--line-strong); }

/* ── 반응형 ───────────────────────────────────────────────── */

@media (max-width: 640px) {
  .site-head-inner, .site-foot-inner { padding: 0 16px; }
  .site-foot-inner { padding-top: 18px; padding-bottom: 18px; }
  .wrap { padding: 32px 16px 52px; }
  .page-head h1 { font-size: 24px; }
  .card { padding: 20px; }
  .document { padding: 18px; font-size: 12.5px; }
  .doc-head { align-items: flex-start; }
  .actions { width: 100%; }
  .actions .btn { flex: 1; }
  .tool-list { grid-template-columns: 1fr; }
}