/* frontend/css/portal.css — 랜딩/제안서 공통 (앱 본체는 style.css) */
:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-2: #22d3ee;
  --border: #334155;
}

* { box-sizing: border-box; }
body.portal {
  margin: 0;
  font-family: "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
.accent { color: var(--accent); }
a { color: var(--accent); text-decoration: none; }

/* ===== 네비 ===== */
.portal-nav {
  display: flex; align-items: center; gap: 28px;
  padding: 14px 28px; background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.portal-nav .brand { font-size: 20px; font-weight: 700; color: var(--text); }
.nav-links { display: flex; gap: 18px; flex: 1; }
.nav-links a { color: var(--muted); font-size: 14px; padding: 6px 2px; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--accent-2); border-bottom: 2px solid var(--accent); }

.proto-btn {
  padding: 9px 18px; border-radius: 8px; font-weight: 700; font-size: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06283d; white-space: nowrap;
}
.proto-btn:hover { filter: brightness(1.1); }
.proto-btn.big { padding: 13px 26px; font-size: 16px; }
.ghost-link {
  padding: 12px 20px; border: 1px solid var(--border); border-radius: 8px;
  color: var(--muted); font-size: 15px;
}
.ghost-link:hover { color: var(--text); border-color: var(--accent); }

/* ===== 히어로 ===== */
.hero { max-width: 880px; margin: 0 auto; padding: 80px 24px 50px; text-align: center; }
.hero-kicker { color: var(--accent-2); font-size: 14px; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 14px; }
.hero h1 { font-size: 42px; line-height: 1.25; margin: 0 0 18px; }
.hero-sub { color: var(--muted); font-size: 17px; max-width: 640px; margin: 0 auto 30px; }
.hero-sub strong { color: var(--text); }
.hero-actions { display: flex; gap: 14px; justify-content: center; align-items: center; }

/* ===== 섹션 / 카드 ===== */
.section { max-width: 980px; margin: 0 auto; padding: 40px 24px; }
.section h2 { font-size: 24px; margin: 0 0 22px; text-align: center; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 24px 22px;
}
.card h3 { margin: 10px 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card p strong { color: var(--accent-2); }
.card-icon { font-size: 26px; }

.card.scenario .tag {
  display: inline-block; font-size: 11px; padding: 3px 10px; border-radius: 12px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--accent-2);
}
.card.scenario .q { color: var(--text); font-weight: 600; font-size: 15px; margin: 12px 0 8px; }
.card.scenario .a { font-size: 13px; }

/* ===== 동작 흐름 ===== */
.flow { display: flex; align-items: stretch; gap: 10px; justify-content: center; flex-wrap: wrap; }
.flow-step {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 18px; min-width: 170px; max-width: 210px; font-weight: 600; font-size: 14px;
}
.flow-step small { display: block; margin-top: 6px; color: var(--muted); font-weight: 400; font-size: 12px; }
.flow-no {
  display: inline-block; width: 22px; height: 22px; line-height: 22px; text-align: center;
  border-radius: 50%; background: var(--accent); color: #06283d; font-size: 12px;
  margin-right: 8px;
}
.flow-arrow { align-self: center; color: var(--accent); font-size: 20px; }
.flow-note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 18px; }

/* ===== 푸터 ===== */
.portal-footer {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  max-width: 980px; margin: 30px auto 0; padding: 22px 24px 36px;
  border-top: 1px solid var(--border); color: var(--muted); font-size: 13px;
}
.portal-footer strong { color: var(--accent-2); }

/* ===== 제안서 페이지 ===== */
.doc { max-width: 820px; margin: 0 auto; padding: 44px 28px 80px; }
.doc h1 { font-size: 32px; margin: 0 0 6px; }
.doc .doc-meta { color: var(--muted); font-size: 13px; margin-bottom: 36px; }
.doc h2 {
  font-size: 21px; margin: 44px 0 14px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.doc h3 { font-size: 16px; margin: 22px 0 8px; color: var(--accent-2); }
.doc p, .doc li { color: var(--text); font-size: 15px; }
.doc .lead { color: var(--muted); }
.doc table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.doc th, .doc td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.doc th { background: var(--panel); }
.doc .pill {
  display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 12px;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--accent-2); margin-right: 6px;
}
.doc .ok { color: #34d399; font-weight: 700; }
.doc blockquote {
  margin: 14px 0; padding: 12px 18px; border-left: 3px solid var(--accent);
  background: var(--panel); border-radius: 0 10px 10px 0; color: var(--muted); font-size: 14px;
}
.print-hint { text-align: right; margin-bottom: 10px; }
.print-hint button {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  padding: 7px 14px; border-radius: 8px; cursor: pointer; font-size: 13px;
}
.print-hint button:hover { color: var(--text); border-color: var(--accent); }

/* ===== 반응형 ===== */
@media (max-width: 760px) {
  .cards { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .flow { flex-direction: column; align-items: center; }
  .flow-arrow { transform: rotate(90deg); }
  .nav-links { gap: 12px; }
}

/* ===== 인쇄(PDF 제안서) ===== */
@media print {
  body.portal { background: #fff; color: #111; }
  .portal-nav, .print-hint, .portal-footer, .proto-btn { display: none !important; }
  .doc { max-width: 100%; padding: 0; }
  .doc h1, .doc h2, .doc h3 { color: #111; border-color: #ccc; }
  .doc p, .doc li, .doc td { color: #222; }
  .doc th, .doc td { border-color: #bbb; }
  .doc th { background: #f1f5f9; }
  .doc blockquote { background: #f8fafc; border-left-color: #0284c7; color: #334155; }
  .doc .pill { border-color: #94a3b8; color: #0369a1; background: #f1f5f9; }
  .doc .ok { color: #047857; }
  a { color: #0369a1; }
}