/* ===== onetool 공용 디자인 시스템 & 토큰 ===== */
:root {
  --bg: #f4f1ea;
  --card: #ffffff;
  --ink: #2b2b2b;
  --muted: #8a857c;
  --accent: #c59a5b;
  --accent-dark: #a87e3f;
  --radius: 14px;
  --shadow: 0 6px 18px rgba(0, 0, 0, 0.07);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }

/* ===== 공용 헤더 (스티키 메뉴 / 뒤로가기) ===== */
header.site-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  background: var(--card);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid #e0dacd;
  border-radius: 999px;
  background: #fff;
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s;
}
.btn-back:hover { background: #f0ece3; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent-dark);
}
.brand .logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  display: grid; place-items: center;
  color: #fff; font-size: 1rem; font-weight: 800;
}

/* ===== 공용 본문 및 패널 폼 요소 ===== */
main { max-width: 720px; margin: 0 auto; padding: 40px 24px 64px; }
.page-title {
  font-size: 1.6rem; letter-spacing: -0.02em;
  color: var(--accent-dark); margin-bottom: 6px;
}
.page-desc { color: var(--muted); margin-bottom: 28px; }
.panel {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px; margin-bottom: 20px;
}
.panel h2 { font-size: 1.05rem; margin-bottom: 16px; }
.field { margin-bottom: 18px; }
.field label {
  display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 6px;
}
.field input, .field select {
  width: 100%; padding: 11px 14px;
  border: 1px solid #ddd6c8; border-radius: 10px;
  font-size: 1rem; background: #fffdf9; color: var(--ink);
}
.field input:focus, .field select:focus {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
.field-row { display: flex; gap: 14px; }
.field-row .field { flex: 1; min-width: 0; }
.field-notice { color: #b3452e; font-size: 0.9rem; margin: 4px 0 10px; }
.actions { display: flex; gap: 10px; margin-top: 4px; }
.btn {
  padding: 11px 20px; border: none; border-radius: 10px;
  font-size: 1rem; font-weight: 600; cursor: pointer; transition: background 0.2s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { background: #f0ece3; color: var(--ink); }
.btn-ghost:hover { background: #e5dfd2; }

/* ===== 공용 푸터 ===== */
footer.site-footer {
  text-align: center; padding: 24px;
  color: var(--muted); font-size: 0.85rem;
  border-top: 1px solid #e4ded2;
  background: var(--card);
}

@media (max-width: 560px) {
  .field-row { flex-direction: column; gap: 0; }
  header.site-header { flex-wrap: wrap; padding: 12px 16px; }
}