/* 사용법 매뉴얼 모달과 여는 버튼(manual-viewer.js). 다른 테마 파일의 .modal 규칙보다 앞서도록 #manualModal 범위로 씁니다. */

/* 접속 화면: 왼쪽 위 '사용법 보기' (오른쪽 위 '인트로 다시 보기'와 짝) */
body #gate .sb-manual-btn {
  position: absolute; left: 18px; top: 16px; z-index: 2;
  display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 4px 14px;
  font: inherit; font-size: 14px; font-weight: 700; color: #3a3f62; background: #fffdf8;
  border: 2px solid #3a3f62; border-radius: 15px 255px 15px 225px / 225px 15px 255px 15px; cursor: pointer;
}
body #gate .sb-manual-btn:hover { box-shadow: 2px 3px 0 #3a3f62; }
body #gate .sb-manual-btn:focus-visible { outline: 3px dashed #7d6bc7; outline-offset: 4px; }
html.sb-intro-pending body.sb-theme #gate.sb-gate .sb-manual-btn { visibility: hidden; animation: sbRevealFailsafe .001s step-end 4s forwards !important; }
body.sb-theme.sb-intro-on #gate.sb-gate .sb-manual-btn { opacity: 0; }

/* 머리말: '다른 모드로 전환' 앞의 '사용법' */
body.curriculum-app .app-utilities .app-manual-btn {
  display: inline-flex; align-items: center; gap: 5px; min-height: 36px; padding: 4px 12px;
  font: inherit; font-size: calc(13px * var(--reading-scale, 1)); font-weight: 800; color: #3a3f62;
  background: #fff; border: 2px solid #3a3f62; border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px; cursor: pointer;
}
body.curriculum-app .app-utilities .app-manual-btn:hover { background: #fff8e6; box-shadow: 2px 3px 0 #3a3f62; }
body.curriculum-app .app-utilities .app-manual-btn:focus-visible { outline: 3px dashed #7d6bc7; outline-offset: 3px; }

/* 모달 */
body.manual-open { overflow: hidden; }
body #manualModal { z-index: 60; padding: 16px; background: rgb(28 30 52 / 52%); }
body #manualModal.hidden { display: none; }
body #manualModal .manual-panel {
  box-sizing: border-box; display: flex; flex-direction: column;
  width: min(1000px, 100%); height: calc(100dvh - 32px); max-height: none; padding: 0; overflow: hidden;
  background: #fffdf8; border: 2px solid #3a3f62; border-radius: 14px 6px 12px 7px / 7px 12px 6px 14px;
  box-shadow: 4px 6px 0 rgb(44 53 102 / 18%);
}
body #manualModal .manual-head {
  position: static; flex: 0 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 18px; color: #2c3566; background: #fff7df; border-bottom: 2px dashed #e2d3a6;
  font-size: calc(18px * var(--reading-scale, 1)); line-height: 1.35;
}
body #manualModal .manual-head strong { min-width: 0; word-break: keep-all; }
body #manualModal .manual-head .btn {
  flex: 0 0 auto; width: auto; min-height: 36px; padding: 2px 14px; font-size: 14px; font-weight: 800;
  color: #fff !important; background: #e0533d !important; border: 2px solid #3a3f62 !important;
  border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px; box-shadow: 2px 3px 0 #3a3f62;
}
body #manualModal .manual-bar {
  flex: 0 0 auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px;
  padding: 10px 18px; background: #fffdf8; border-bottom: 1px solid #e2d9c4;
}
body #manualModal .manual-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
body #manualModal .manual-tabs button {
  min-height: 36px; padding: 4px 14px; font: inherit; font-size: calc(14px * var(--reading-scale, 1)); font-weight: 800;
  color: #3a3f62; background: #fff; border: 2px solid #d7cdb5; border-radius: 999px; cursor: pointer;
}
body #manualModal .manual-tabs button[aria-pressed="true"] { color: #fff; background: #2c3566; border-color: #2c3566; }
body #manualModal .manual-tabs button:focus-visible,
body #manualModal .manual-links a:focus-visible { outline: 3px dashed #7d6bc7; outline-offset: 2px; }
body #manualModal .manual-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; font-weight: 700; }
body #manualModal .manual-links a { color: #2c3566; text-decoration: underline; text-underline-offset: 3px; }
body #manualModal .manual-frame-wrap { position: relative; flex: 1 1 auto; min-height: 0; background: #f7f3e9; }
body #manualModal iframe { display: block; width: 100%; height: 100%; border: 0; background: #f7f3e9; }

@media (max-width: 640px) {
  body #gate .sb-manual-btn { left: 10px; top: 10px; min-height: 36px; padding: 2px 10px; font-size: 13px; }
  body #manualModal { padding: 0; }
  body #manualModal .manual-panel { width: 100%; height: 100dvh; border: 0; border-radius: 0; box-shadow: none; }
  body #manualModal .manual-head { padding: 10px 12px; font-size: 16px; }
  body #manualModal .manual-bar { padding: 8px 12px; }
  body #manualModal .manual-tabs button { padding: 2px 10px; font-size: 13px; }
  body #manualModal .manual-links { gap: 10px; font-size: 13px; }
}