:root {
  --bg: #f4f5f8;
  --card: #ffffff;
  --ink: #1b1f27;
  --sub: #6b7280;
  --line: #e8eaf0;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --c-economy: #2563eb;
  --c-it: #7c3aed;
  --c-ai: #0d9488;
  --c-general: #475569;
  --shadow: 0 6px 24px rgba(20, 24, 40, .08);
}
* { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
               "Noto Sans KR", "Segoe UI", sans-serif;
  line-height: 1.5; -webkit-font-smoothing: antialiased;
  /* 전체 화면 고정 — 페이지 자체는 절대 스크롤되지 않는다 */
  height: 100dvh; overflow: hidden;
  display: flex; flex-direction: column;
}
a { color: inherit; text-decoration: none; }

/* ── 상단바 ── */
.topbar {
  flex-shrink: 0; z-index: 20;
  background: #fff; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 18px; padding: 12px 18px; flex-wrap: wrap;
}
.brand { font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav a {
  padding: 7px 14px; border-radius: 999px; color: var(--sub);
  font-size: 14px; font-weight: 600; transition: all .15s;
}
.nav a:hover { background: var(--bg); color: var(--ink); }
.nav a.on { background: var(--ink); color: #fff; }
.nav a.me { color: var(--accent); }

/* ── 본문(남은 높이 전부 차지, 내부에서 분배) ── */
.container {
  width: 100%; max-width: 760px; margin: 0 auto; padding: 8px 14px 8px;
  flex: 1; min-height: 0; display: flex; flex-direction: column;
}
.empty { color: var(--sub); text-align: center; padding: 60px 0; }

/* ── 분야 필터 ── */
.filters { display: flex; gap: 7px; flex-wrap: wrap; flex-shrink: 0; padding-bottom: 8px; }
.chip {
  padding: 7px 15px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--sub); font-size: 13px; font-weight: 600; transition: all .15s;
}
.chip:hover { color: var(--ink); border-color: var(--sub); }
.chip.on { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── 뉴스 동향 캐러셀 ── */
/* 카드 왼쪽은 필터(카테고리) 시작선과 정렬, 오른쪽 여백에 넘김 버튼 */
/* 카드 좌우 끝을 위 필터와 정렬 — 좌우 패딩 0 */
.carousel { position: relative; padding: 0; flex: 1; min-height: 0; }
.track {
  display: flex; gap: 0; height: 100%; overflow-x: auto; overflow-y: hidden;
  scroll-snap-type: x mandatory; scroll-behavior: smooth;
  scrollbar-width: none; -ms-overflow-style: none; border-radius: 20px;
  cursor: grab;
}
.track:active { cursor: grabbing; }
.track::-webkit-scrollbar { display: none; }

.trend {
  flex: 0 0 100%; scroll-snap-align: center;
  height: 100%; overflow: hidden;
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
/* 시의성 헤더 */
.newshead { flex-shrink: 0; display: flex; align-items: baseline; gap: 10px; padding-bottom: 10px; }
.newshead h1 { font-size: 19px; font-weight: 800; margin: 0; letter-spacing: -.02em; }
.ago { color: var(--sub); font-size: 12px; }

/* 카드 상단: 카테고리 + 감성 + 영향도 */
.trend-top { flex-shrink: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 20px 52px 6px; }
.trend-cat {
  display: inline-block; color: #fff; font-size: 12px; font-weight: 700;
  letter-spacing: .02em; padding: 5px 13px; border-radius: 999px; background: var(--sub);
}
.sent { font-size: 12px; font-weight: 700; padding: 5px 11px; border-radius: 999px; }
.sent-positive { background: #e7f6ee; color: #0f9d58; }
.sent-negative { background: #fdecec; color: #db3b3b; }
.sent-neutral { background: #eef0f3; color: #5b6472; }
.impact { font-size: 11px; color: #f59e0b; letter-spacing: 2px; }
.cat-economy { background: var(--c-economy); }
.cat-it { background: var(--c-it); }
.cat-ai { background: var(--c-ai); }
.cat-general { background: var(--c-general); }

/* 본문 — 세로 중앙. 평소엔 스크롤 없음, 근거 기사 펼칠 때만 카드 안에서 스크롤 */
.trend-body {
  flex: 1; min-height: 0; overflow-y: auto;
  display: flex; flex-direction: column; justify-content: center;
  padding: 8px 52px 28px; scrollbar-width: thin;
}
.trend-head {
  font-size: 26px; font-weight: 800; line-height: 1.34; letter-spacing: -.02em; margin: 0 0 16px;
}
.trend-sum { margin: 0; font-size: 17px; line-height: 1.8; color: #39404e; }

.sources { margin-top: 22px; }
.sources summary {
  cursor: pointer; color: var(--accent); font-size: 13px; font-weight: 700;
  list-style: none; padding: 8px 0;
}
.sources summary::-webkit-details-marker { display: none; }
.sources summary::before { content: "▸ "; }
.sources[open] summary::before { content: "▾ "; }
.sources ul { list-style: none; padding: 0; margin: 6px 0 0; }
.sources li { padding: 12px 0; border-top: 1px solid var(--line); }
.ahead { font-weight: 600; font-size: 14px; }
.ahead:hover { color: var(--accent); }
.sources .src { color: var(--sub); font-size: 12px; margin-left: 6px; }
.asum { margin: 5px 0 0; color: #525a68; font-size: 13px; line-height: 1.6; }

/* 넘김 버튼 — 카드 양옆(좌우) */
.arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff;
  font-size: 24px; line-height: 1; color: var(--ink); cursor: pointer;
  box-shadow: var(--shadow); transition: background .15s, color .15s, border-color .15s;
}
.arrow.prev { left: -46px; }
.arrow.next { right: -46px; }
.arrow:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* 카운터 바 */
.cbar { flex-shrink: 0; display: flex; align-items: center; justify-content: center; gap: 14px; padding-top: 9px; }
.counter { color: var(--ink); font-size: 14px; font-weight: 700; }
.batch { color: var(--sub); font-size: 12px; }

/* ── 동향 그리드 (3열, 클릭 시 모달 상세) ── */
.filler { flex: 1; }
.grid {
  flex: 1; min-height: 0; overflow-y: auto;
  display: flex; flex-direction: column; gap: 10px;
  padding-bottom: 8px;
  scrollbar-width: none; -ms-overflow-style: none;
}
.grid::-webkit-scrollbar { display: none; }
.gcard {
  background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--line);
  border-radius: 14px; box-shadow: var(--shadow); padding: 14px 18px; text-align: left; cursor: pointer;
  display: flex; flex-direction: column; gap: 8px;
  font: inherit; color: inherit; transition: transform .12s, box-shadow .12s;
}
.bar-economy { border-left-color: var(--c-economy); }
.bar-it { border-left-color: var(--c-it); }
.bar-ai { border-left-color: var(--c-ai); }
.bar-general { border-left-color: var(--c-general); }
.gcard:hover { transform: translateX(3px); box-shadow: 0 8px 22px rgba(20, 24, 40, .12); }
.gcard-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.gmeta { display: flex; align-items: center; gap: 8px; }
.gcard .trend-cat { font-size: 11px; padding: 3px 9px; }
.gcard .sent { font-size: 11px; padding: 3px 9px; }
.gkey { font-size: 20px; font-weight: 800; letter-spacing: -.025em; line-height: 1.3; }
.gsum { margin: 0; font-size: 14px; color: #525a68; line-height: 1.6; }
.gtime { align-self: flex-end; color: var(--sub); font-size: 11px; margin-top: 1px; }

/* ── 상세 모달 ── */
.modal { position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center; padding: 18px; }
.modal[hidden] { display: none; }
.modal-back { position: absolute; inset: 0; background: rgba(15, 18, 28, .5); }
.modal-card {
  position: relative; z-index: 1; background: var(--card); border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, .3); max-width: 600px; width: 100%;
  max-height: 86vh; overflow-y: auto; padding: 28px 26px;
}
.modal-x {
  position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; cursor: pointer; font-size: 14px; color: var(--sub);
}
.modal-x:hover { background: var(--bg); color: var(--ink); }
.modal-body .trend-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 0 40px 14px 0; }
.modal-body .trend-head { font-size: 23px; font-weight: 800; line-height: 1.35; margin: 0 0 14px; }
.modal-body .trend-sum { font-size: 16px; line-height: 1.8; color: #39404e; margin: 0; }

/* ── 로그인(login.html) ── */
.auth { max-width: 400px; margin: 24px auto; overflow-y: auto; }
.page-title { font-size: 21px; margin: 8px 0 16px; }
.hint { color: var(--sub); font-size: 14px; }
.auth-box { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px; margin-bottom: 14px; box-shadow: var(--shadow); }
.auth-box h2 { font-size: 16px; margin: 0 0 4px; }
.auth-box.backup { opacity: .9; }
.code-form { display: flex; gap: 8px; margin-top: 12px; }
.code-form input { flex: 1; padding: 11px 13px; border: 1px solid var(--line); border-radius: 11px; font-size: 16px; }
.btn { padding: 11px 17px; border: 1px solid var(--line); background: #fff; border-radius: 11px; font-weight: 700; cursor: pointer; font-size: 14px; }
.btn.primary, .btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.alert { padding: 11px 14px; border-radius: 11px; font-size: 14px; }
.alert.err { background: #fef2f2; color: #b91c1c; }
.alert.ok { background: #ecfdf5; color: #047857; }

/* ── 개인 메뉴(me.html) ── */
.panels { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 8px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; box-shadow: var(--shadow); }
.panel h2 { font-size: 15px; margin: 0 0 8px; }

/* 이스터에그: 하단 카운터의 '촉' 5번 탭 → 개인 로그인 */
.egg { color: var(--sub); font-size: 12px; cursor: default; user-select: none; }

/* 카드 밖 여백이 부족한 화면에서는 화살표를 카드 안쪽으로(글자는 패딩으로 회피) */
@media (max-width: 920px) {
  .arrow.prev { left: 6px; }
  .arrow.next { right: 6px; }
}
@media (max-width: 640px) {
  .carousel { padding: 0; }
  .arrow { width: 36px; height: 36px; font-size: 20px; }
  .arrow.prev { left: 4px; }
  .arrow.next { right: 4px; }
  .trend-top { padding-left: 44px; padding-right: 44px; }
  .trend-body { padding-left: 44px; padding-right: 44px; }
  .trend-head { font-size: 22px; }
  .trend-sum { font-size: 16px; }
  .panels { grid-template-columns: 1fr; }
}