/* 기능 소개 페이지 공통 스타일 — login/home 디자인 토큰 차용 */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #15171c;
  --bg-2: #1c1f26;
  --card: #21252e;
  --card-2: #2a2f3a;
  --border: #343a46;
  --text: #e9ebef;
  --muted: #98a1b0;
  --primary: #8b5cf6;
  --primary-2: #a274f4;
  --green: #2ecc71;
  --amber: #f1c40f;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
}
[hidden] { display: none !important; }

.wrap {
  max-width: 680px; margin: 0 auto;
  padding: 32px 20px 48px;
  display: flex; flex-direction: column; gap: 26px;
}

.back {
  align-self: flex-start;
  color: var(--muted); font-size: 13px; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.back:hover { color: var(--text); }

.hero { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.hero-icon { font-size: 44px; color: var(--primary); }
.hero-title { font-size: 30px; font-weight: 900; letter-spacing: -.4px; }
.hero-sub { font-size: 15px; color: var(--muted); }

.desc {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px; font-size: 14px; line-height: 1.75; color: var(--text);
}

.how { display: flex; flex-direction: column; gap: 12px; }
.how h2 { font-size: 15px; font-weight: 700; color: var(--muted); }
.how ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.how li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px; line-height: 1.6;
}
.how li i { color: var(--green); margin-top: 3px; flex-shrink: 0; }
.how li b { color: var(--text); }

/* ===== 버튼 / CTA ===== */
.cta-row { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 6px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--border); background: var(--card-2); color: var(--text);
  padding: 12px 22px; border-radius: 10px; font-size: 15px; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: background .15s, transform .05s;
}
.btn:hover { background: #333a47; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-2); }
.cta-note { font-size: 12px; color: var(--muted); }