/* ───────────────────────────────────────────────────────────
 *  FLOW.US 설문 앱 — 반응형 (모바일 / 태블릿 / 키오스크)
 *  디자인 시스템: Analyzer/Crawler 와 동일 (브랜드 레드 + 무채색, KoPub 폰트)
 * ─────────────────────────────────────────────────────────── */
:root {
  /* ── FLOW.US 브랜드 — 레드 단일 포인트 + 무채색 보조 (그라디언트 금지) ── */
  --primary: #D93B20; --primary-light: #F2604A; --primary-dark: #B5301A; --accent: #B5301A;
  --primary-muted: #F4C4BA; --primary-tint: #FBF1EE;
  --bg: #F7F5F3; --card: #FFFFFF; --surface-card: #F0EDEA; --border: #E0DDDA; --divider: #D0CCC8;
  --text: #1A1A1A; --muted: #555555; --ink-light: #888888; --danger: #B5301A;
  --radius: 16px;
  --maxw: 720px;             /* 본문 최대 폭(태블릿·키오스크에서 가운데 정렬) */
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; }
body {
  font-family: 'KoPub Dotum', 'Noto Sans KR', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}
h1, h2, h3 { font-family: 'KoPub Dotum', 'Noto Sans KR', sans-serif; }

/* ── 화면 공통 ─────────────────────────────────────────── */
.screen { min-height: 100%; }

/* ── 표지 (Analyzer/Crawler 업로드 화면과 동일 구성: 배지 로고 + 태그라인 + 카드) ── */
.intro {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px; padding: 40px 20px; min-height: 100vh;
}
.logo-wrap { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-bottom: 6px; }
.flowus-badge {
  background: var(--primary); border-radius: 18px; padding: 22px 36px;
  display: inline-flex; align-items: center; justify-content: center;
}
.flowus-badge .flow-logo-img { height: 52px; width: auto; }
.tagline {
  font-size: .92rem; color: var(--muted);
  font-family: 'KoPub Batang', 'Noto Sans KR', serif; letter-spacing: .01em;
  text-align: center;
}
.intro-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 40px; max-width: 640px; width: 100%; text-align: center;
  box-shadow: 0 2px 14px rgba(0,0,0,.05);
}
.intro-card h1 { font-size: 1.45rem; color: var(--text); margin-bottom: 14px; letter-spacing: -.01em; line-height: 1.4; }
.intro-text {
  font-size: .95rem; color: var(--text); margin-bottom: 16px; line-height: 1.75;
  font-family: 'KoPub Batang', 'Noto Sans KR', serif;
}
.intro-privacy { font-size: .78rem; color: var(--ink-light); margin-bottom: 8px; line-height: 1.6; }
.intro-contact { font-size: .78rem; color: var(--ink-light); margin-bottom: 22px; }

/* ── 상단바: 레드 헤더 (Analyzer/Crawler 결과 화면 헤더와 동일 계열) ── */
.topbar {
  position: sticky; top: 0; z-index: 5;
  background: var(--primary); color: #fff;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 10px;
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; gap: 12px;
}
.topbar .flow-logo-sm { height: 20px; width: auto; flex-shrink: 0; }
.topbar .brand-divider { width: 1px; height: 18px; background: rgba(255,255,255,.45); flex-shrink: 0; }
.topbar .top-title {
  font-size: .85rem; font-weight: 700; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; flex: 1;
}
.progress-step { font-size: .78rem; color: rgba(255,255,255,.9); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.progress-wrap { max-width: var(--maxw); margin: 8px auto 0; }
.progress { height: 6px; background: rgba(255,255,255,.28); border-radius: 99px; overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: #fff; transition: width .3s ease; }

/* ── 페이지/문항 ───────────────────────────────────────── */
#app {
  max-width: var(--maxw); margin: 0 auto;
  padding: 8px 20px 120px;
}
.page-title { font-size: 1.25rem; margin: 16px 0 4px; letter-spacing: -.01em; }
.page-desc  { font-size: .85rem; color: var(--muted); margin: 0 0 16px; }
.items { display: flex; flex-direction: column; gap: 16px; }

.q {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 20px; box-shadow: 0 2px 14px rgba(0,0,0,.05);
  transition: border-color .2s, background .2s;
}
.q.missing { border-color: var(--danger); background: var(--primary-tint); }
.q-title { font-size: 1rem; font-weight: 700; margin-bottom: 12px; line-height: 1.5; }
.q-help  { font-size: .8rem; color: var(--ink-light); margin: -6px 0 12px; }
.q-note  { font-size: .9rem; color: var(--muted); }
.req { color: var(--primary); }

/* ── 선택지(단일·복수) ─────────────────────────────────── */
.opts { display: flex; flex-direction: column; gap: 9px; }
.opt {
  appearance: none; text-align: left; cursor: pointer;
  font-family: inherit; font-size: .95rem; padding: 13px 15px;
  border: 1px solid var(--border); border-radius: 9px;
  background: #fff; color: var(--text);
  transition: background .15s, border-color .15s; min-height: 50px;
}
.opt:hover { background: var(--primary-tint); border-color: var(--primary-light); }
.opt.sel {
  border-color: var(--primary); background: var(--primary);
  color: #fff; font-weight: 700;
}

/* ── 텍스트/숫자 입력 ──────────────────────────────────── */
.txt {
  width: 100%; font-size: .95rem; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: 9px; background: #fff;
  color: var(--text); font-family: inherit;
}
.txt:focus { outline: none; border-color: var(--primary-light); }
.area { resize: vertical; min-height: 120px; }
/* 단위 고정 표기 입력칸 (예: 금액 '원') */
.txt-wrap { position: relative; }
.txt-wrap .txt.has-unit { padding-right: 44px; text-align: right; }
.txt-unit {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  font-size: .9rem; color: var(--muted); pointer-events: none;
}
/* 시간·분 두 칸 입력 */
.dur { display: flex; gap: 10px; }
.dur .txt-wrap { flex: 1; }
.dur.col { flex-direction: column; }   /* 거주지처럼 라벨이 긴 경우 세로 배치 */

/* ── 리커트 7점 ────────────────────────────────────────── */
.likert { display: flex; flex-direction: column; gap: 4px; }
.lk-legend {
  text-align: center; font-size: .8rem; color: var(--muted);
  background: var(--bg); border-radius: 8px; padding: 8px 10px; margin-bottom: 8px;
}
.lk-legend b { font-weight: 700; }
.lk-legend .lo { color: var(--text); }
.lk-legend .hi { color: var(--primary); }
.lk-legend .arrow { color: var(--ink-light); margin: 0 2px; }
.likert-row { padding: 12px 0; border-top: 1px solid var(--border); }
.likert-row:first-of-type { border-top: none; }
.lk-text { font-size: .9rem; margin-bottom: 10px; }
.lk-scale { display: flex; gap: 6px; }
/* 각 척도 줄 아래 양끝 뜻 + 선택한 값의 뜻 */
.lk-ends {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 6px; font-size: .72rem; color: var(--ink-light);
}
.lk-ends .lk-picked {
  font-size: .8rem; font-weight: 700; color: var(--primary);
  min-height: 1.2em; text-align: center;
}
.lk {
  flex: 1; cursor: pointer; font-family: inherit; font-size: .9rem; font-weight: 700;
  padding: 11px 0; min-height: 44px;
  border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--muted);
  transition: background .15s, border-color .15s;
}
.lk:hover { background: var(--primary-tint); border-color: var(--primary-light); }
.lk.sel { border-color: var(--primary); background: var(--primary); color: #fff; }

/* ── 하단 내비게이션 ───────────────────────────────────── */
.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 5;
  display: flex; gap: 12px; max-width: var(--maxw); margin: 0 auto;
  padding: 12px 20px calc(env(safe-area-inset-bottom) + 12px);
  background: linear-gradient(to top, var(--bg) 70%, rgba(247,245,243,0));
}

/* ── 버튼 (Crawler .btn-upload 계열) ───────────────────── */
.btn {
  appearance: none; cursor: pointer;
  font-family: 'KoPub Dotum', 'Noto Sans KR', sans-serif;
  font-size: 1rem; font-weight: 700; border-radius: 8px;
  padding: 13px 22px; border: 1px solid transparent; min-height: 52px;
  transition: background .15s, border-color .15s;
}
.btn.primary { background: var(--primary); color: #fff; flex: 2; }
.btn.primary:hover { background: var(--primary-light); }
.btn.primary:active { transform: translateY(1px); }
.btn.ghost { background: #fff; color: var(--text); border-color: var(--border); flex: 1; }
.btn.ghost:hover { background: var(--primary-tint); border-color: var(--primary-light); }
.btn.big { width: 100%; font-size: 1.05rem; padding: 15px; }

/* ── 완료 화면 ─────────────────────────────────────────── */
.done { text-align: center; padding-top: 16vh; }
.done .check {
  width: 84px; height: 84px; border-radius: 50%; margin: 0 auto 24px;
  background: var(--primary); color: #fff; font-size: 46px; line-height: 84px;
}
.done h2 { font-size: 1.4rem; margin-bottom: 12px; }
.done-sub { color: var(--muted); font-size: .9rem; margin-bottom: 28px; }
.done-count { color: var(--primary); font-weight: 700; }

/* ── 오버레이 ──────────────────────────────────────────── */
.overlay {
  position: fixed; inset: 0; z-index: 20;
  background: rgba(247,245,243,.92);
  display: flex; align-items: center; justify-content: center;
}
.ov-box { text-align: center; }
.ov-title { font-size: 1rem; font-weight: 700; margin-top: 16px; }
.ov-sub { font-size: .8rem; color: var(--muted); }
.spinner {
  width: 44px; height: 44px; margin: 0 auto;
  border: 4px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── 미전송 배지 ───────────────────────────────────────── */
.queue-badge {
  position: fixed; bottom: calc(env(safe-area-inset-bottom) + 88px); left: 12px; z-index: 30;
  background: var(--text); color: #fff; font-size: .74rem;
  padding: 6px 10px; border-radius: 99px; opacity: .88;
}

/* ── 태블릿/키오스크(넓은 화면) ────────────────────────── */
@media (min-width: 700px) {
  .intro-card h1 { font-size: 1.7rem; }
  .page-title { font-size: 1.45rem; }
  .q-title { font-size: 1.1rem; }
  .opt { font-size: 1rem; }
}

/* 키오스크: 더 큰 글씨·버튼 (URL 에 ?kiosk=1) */
body.kiosk { --maxw: 820px; }
body.kiosk .q-title { font-size: 1.2rem; }
body.kiosk .opt { font-size: 1.15rem; padding: 17px 18px; min-height: 60px; }
body.kiosk .lk { font-size: 1.05rem; min-height: 54px; }
body.kiosk .lk-ends { font-size: .85rem; }
body.kiosk .lk-ends .lk-picked { font-size: .95rem; }
body.kiosk .lk-legend { font-size: .95rem; }
body.kiosk .btn { font-size: 1.15rem; min-height: 62px; }
body.kiosk .txt { font-size: 1.1rem; }

/* 터치 기기에서는 hover 효과 고정 방지 */
@media (hover: none) {
  .opt:hover { background: #fff; border-color: var(--border); }
  .opt.sel:hover { background: var(--primary); border-color: var(--primary); }
  .lk:hover { background: #fff; border-color: var(--border); }
  .lk.sel:hover { background: var(--primary); border-color: var(--primary); }
}