:root {
  --primary: #1a56db;
  --primary-dark: #1340a8;
  --bg: #f4f6fa;
  --card: #ffffff;
  --border: #dde3ec;
  --text: #1f2937;
  --muted: #6b7280;
  --danger: #dc2626;
  --green: #047857;
}

* { box-sizing: border-box; }

/* 로그인 게이트 */
.auth-gate {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
.auth-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 36px 32px; width: 340px; box-shadow: 0 8px 30px rgba(26,86,219,.10);
  display: flex; flex-direction: column; gap: 12px; text-align: center;
}
.auth-card h1 { margin: 0; color: var(--primary); }
.auth-sub { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.auth-card input {
  padding: 11px 13px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit;
}
.auth-card input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.auth-card .btn { margin-top: 4px; }
.auth-error { color: var(--danger); font-size: 13px; margin: 4px 0 0; }
.user-email { color: var(--muted); font-size: 13px; }

body {
  margin: 0;
  font-family: "Apple SD Gothic Neo", "Noto Sans KR", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 28px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { margin: 0; font-size: 22px; cursor: pointer; color: var(--primary); }
.subtitle { color: var(--muted); font-size: 14px; flex: 1; }

main { max-width: 1080px; margin: 0 auto; padding: 24px; }

/* 버튼 */
.btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.btn:hover { background: #eef2f8; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--danger); border-color: #f3c1c1; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: wait; }

/* 카드 목록 */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow .15s, transform .15s;
}
.card:hover { box-shadow: 0 6px 18px rgba(26, 86, 219, .12); transform: translateY(-2px); }
.card-poster { height: 150px; background: #eef2f8; display: flex; align-items: center; justify-content: center; }
.card-poster img { width: 100%; height: 100%; object-fit: cover; }
.no-poster { font-size: 42px; opacity: .4; }
.no-poster.big { font-size: 64px; text-align: center; padding: 40px 0; color: var(--muted); }
.card-body { padding: 12px 14px; }
.card-month { font-size: 13px; color: var(--primary); font-weight: 700; }
.card-title { font-weight: 600; margin: 4px 0; }
.card-meta { font-size: 12px; color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 60px 0; }

/* 폼 */
#view-form form { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; }
#view-form label { display: block; margin-bottom: 14px; font-size: 14px; font-weight: 600; }
#view-form input, #view-form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 14px; font-family: inherit;
}
#view-form input:focus, #view-form textarea:focus { outline: 2px solid var(--primary); border-color: transparent; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.actions { display: flex; gap: 10px; margin-top: 8px; }

/* 상세 */
.detail-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.detail-head h2 { margin: 0; font-size: 20px; }
.spacer { flex: 1; }
.badge {
  background: var(--primary); color: #fff; border-radius: 999px;
  padding: 2px 10px; font-size: 12px; font-weight: 700;
  white-space: nowrap; display: inline-block;
}
.badge.src-manual { background: #6b7280; }
.badge.src-ai { background: #7c3aed; }
.badge.src-rollback { background: #b45309; }

.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 18px; }
.tab {
  border: none; background: none; padding: 10px 18px; font-size: 15px;
  cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }

.tabpane { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; }
.detail-grid { display: grid; grid-template-columns: 300px 1fr; gap: 28px; }
.poster-box img { width: 100%; border-radius: 8px; border: 1px solid var(--border); }
.theme { color: var(--primary); margin-top: 0; }
.content-body p { margin: 6px 0; line-height: 1.7; }
.rules li { margin: 6px 0; line-height: 1.6; }

/* 버전 테이블 */
.vtable { width: 100%; border-collapse: collapse; font-size: 14px; }
.vtable th, .vtable td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
.vtable th { color: var(--muted); font-weight: 600; font-size: 13px; }
.current-row { background: #f0f5ff; }
.diff-controls { margin-top: 16px; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.diff-controls select { padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; }
.diff {
  margin-top: 12px; background: #0f172a; color: #e2e8f0; border-radius: 8px;
  padding: 16px; font-size: 13px; overflow-x: auto; line-height: 1.5;
}
.diff .add { color: #4ade80; }
.diff .del { color: #f87171; }
.diff .hunk { color: #93c5fd; }

/* AI 채팅 */
.hint { color: var(--muted); font-size: 13px; margin-top: 0; }
.chat-log {
  max-height: 380px; overflow-y: auto; display: flex; flex-direction: column;
  gap: 10px; padding: 6px 0; margin-bottom: 12px;
}
.msg { max-width: 80%; padding: 10px 14px; border-radius: 12px; font-size: 14px; line-height: 1.6; }
.msg p { margin: 4px 0; }
.msg.user { align-self: flex-end; background: var(--primary); color: #fff; border-bottom-right-radius: 2px; }
.msg.assistant { align-self: flex-start; background: #eef2f8; border-bottom-left-radius: 2px; }
.msg.pending { color: var(--muted); font-style: italic; }
.msg.error { background: #fef2f2; color: var(--danger); }
.chat-input { display: flex; gap: 8px; }
.chat-input input {
  flex: 1; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; font-family: inherit;
}

/* AI 수정안 */
.proposal {
  border: 2px solid #7c3aed; border-radius: 12px; padding: 16px 20px;
  margin-bottom: 14px; background: #faf7ff;
}
.proposal h4 { margin-top: 0; color: #7c3aed; }
.proposal-content { background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin: 8px 0; max-height: 240px; overflow-y: auto; }

/* 토스트 */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: var(--green); color: #fff; padding: 11px 22px;
  border-radius: 8px; font-size: 14px; box-shadow: 0 4px 14px rgba(0,0,0,.2); z-index: 100;
}
.toast.error { background: var(--danger); }

@media (max-width: 760px) {
  .detail-grid { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
}