/* 설치 안내(/app)·설치 안내문 인쇄(/app/poster) */
.install-page { min-height: 100vh; margin: 0; background: linear-gradient(180deg, #e7f2ee 0%, #f6f1e7 100%); padding: 24px 16px 120px; }
.install-card { max-width: 480px; margin: 0 auto; border: 1px solid var(--line); border-radius: 24px; background: var(--surface); box-shadow: var(--shadow-sm); padding: 24px 22px; }
.install-brand { display: flex; align-items: center; gap: 12px; }
.install-brand img { border-radius: 16px; }
.install-brand strong, .install-brand small { display: block; }
.install-brand strong { font-size: 18px; }
.install-brand small { color: var(--ink-soft); font-size: 12.5px; }
.install-card h1 { margin: 20px 0 6px; font-size: 22px; letter-spacing: -0.02em; }
.install-lead { margin: 0 0 18px; color: var(--ink-soft); font-size: 14.5px; line-height: 1.55; }
.install-step { border-top: 1px dashed var(--line); padding-top: 16px; }
.install-step[hidden] { display: none; }
.install-step h2 { margin: 0 0 10px; color: var(--teal-700); font-size: 17px; }
.install-step p { margin: 0 0 10px; font-size: 14px; line-height: 1.55; }
.install-list { display: grid; gap: 10px; margin: 0 0 14px; padding-left: 20px; font-size: 15px; line-height: 1.5; }
.install-list--big { padding-left: 0; list-style: none; }
.install-list--big li { display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 10px; border-radius: 14px; background: var(--surface-muted); padding: 12px; }
.install-num { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 999px; background: var(--teal-600); color: #fff; font-weight: 800; }
.install-share { display: inline-grid; width: 26px; height: 26px; place-items: center; border: 1.5px solid #1d6fe0; border-radius: 7px; color: #1d6fe0; font-size: 14px; vertical-align: middle; }
.install-note { color: var(--ink-soft); font-size: 12.5px !important; }
.install-big { width: 100%; height: 56px; font-size: 17px; }
.install-qr { display: block; width: 240px; height: 240px; margin: 6px auto 8px; image-rendering: pixelated; }
.install-url { text-align: center; font-weight: 700; word-break: break-all; }
.install-login { display: block; margin-top: 18px; color: var(--ink-soft); font-size: 13.5px; text-align: center; text-decoration: none; }
.install-pointer { position: fixed; bottom: 8px; left: 50%; display: grid; justify-items: center; gap: 2px; transform: translateX(-50%); color: #1d6fe0; font-weight: 800; pointer-events: none; animation: install-bounce 1.2s ease-in-out infinite; }
.install-pointer[hidden] { display: none; }
.install-pointer span { border-radius: 999px; background: #1d6fe0; padding: 6px 14px; color: #fff; font-size: 14px; box-shadow: 0 6px 16px -6px rgba(29, 111, 224, 0.7); }
.install-pointer b { font-size: 34px; line-height: 1; }
@keyframes install-bounce { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }
@media (prefers-reduced-motion: reduce) { .install-pointer { animation: none; } }

/* 인쇄용 안내문(A4) */
.poster-page { margin: 0; background: #fff; color: #1e2b28; }
.poster { box-sizing: border-box; width: 210mm; min-height: 297mm; margin: 0 auto; padding: 14mm 15mm 10mm; }
.poster-head { display: flex; align-items: center; gap: 14px; }
.poster-head img { width: 64px; height: 64px; border-radius: 16px; }
.poster-head strong { display: block; font-size: 22px; }
.poster-head small { color: #5d6b67; font-size: 14px; }
.poster h1 { margin: 8mm 0 3mm; font-size: 32px; letter-spacing: -0.03em; }
.poster-lead { margin: 0 0 5mm; color: #3c4a46; font-size: 17px; line-height: 1.6; }
.poster-qr { display: grid; justify-items: center; gap: 4px; margin-bottom: 6mm; }
.poster-qr img { width: 62mm; height: 62mm; image-rendering: pixelated; }
.poster-qr p { margin: 0; font-size: 18px; font-weight: 800; }
.poster-qr small { color: #5d6b67; font-size: 14px; }
.poster-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 8mm; }
.poster-cols section { border: 1.5px solid #cfe2dc; border-radius: 16px; padding: 6mm; }
.poster-cols h2 { margin: 0 0 4mm; font-size: 20px; }
.poster-cols ol { display: grid; gap: 3mm; margin: 0; padding-left: 20px; font-size: 15.5px; line-height: 1.5; }
.poster-foot { margin-top: 5mm; color: #5d6b67; font-size: 13.5px; line-height: 1.6; }
.poster-print { position: fixed; right: 16px; bottom: 16px; }
@media print {
  @page { size: A4; margin: 0; }
  .poster-print { display: none; }
}
@media screen and (max-width: 820px) {
  .poster { width: auto; min-height: 0; padding: 20px 16px; }
  .poster-cols { grid-template-columns: 1fr; }
}

/* 안드로이드 "안전하지 않은 앱 차단됨" 안내 */
.install-blocked { margin-top: 14px; border: 1px solid #f1d7a8; border-radius: 14px; background: #fff8ea; padding: 10px 14px; }
.install-blocked summary { color: #8a5a12; cursor: pointer; font-size: 14.5px; font-weight: 800; }
.install-blocked[open] summary { margin-bottom: 8px; }
.install-blocked .install-big { display: grid; place-items: center; margin-top: 4px; text-decoration: none; }
.poster-tip { margin: 4mm 0 0; border-radius: 10px; background: #fff8ea; padding: 3mm 4mm; color: #6b4a12; font-size: 13.5px; line-height: 1.5; }