/* ============================================================
   방명록 — 한지·낮 테마 확장
   poomasi.org/guestbook.html · 2026-08-20
   토큰은 landing-hanji.css 의 :root 를 그대로 쓴다(감빛/먹/한지).
   원칙: 카피 불변 · 자체호스팅(외부 에셋 없음) · AA 대비
   landing-hanji.js 를 싣지 않으므로 si-reveal 계열은 쓰지 않는다.
   ============================================================ */

.gb-body {
  /* 3D 그래프 없는 정적 배경 — 히어로와 같은 빛 방향.
     바탕색을 반드시 함께 깔아야 한다. 그러지 않으면 그러데이션이 끝나는
     아래쪽이 흰 종이로 비친다. */
  background-color: var(--hanji);
  background-image:
    radial-gradient(120% 34rem at 50% 0, #faf5eb 0%, rgba(245, 239, 226, 0) 100%);
  background-repeat: no-repeat;
}

/* hidden 속성이 display 선언에 지지 않게 한다.
   .gb-err / .gb-formmsg / .gb-error 는 display:flex 라 hidden 이 무시된다. */
.gb-page [hidden] { display: none !important; }

.gb-page {
  position: relative;
  z-index: 10;
}

.gb-inner {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- 머리 ---------- */

.gb-head {
  padding: 3rem 0 2.5rem;
}

.gb-back {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.4rem 0.7rem 0.4rem 0;
  font-size: 0.95rem;
  color: var(--meok-faint);
  text-decoration: none;
  transition: color 0.2s ease;
}
.gb-back svg { width: 1em; height: 1em; }
.gb-back:hover { color: var(--gam-deep); }
.gb-back:focus-visible {
  outline: 3px solid var(--meok-deep);
  outline-offset: 3px;
  border-radius: 2px;
}

.gb-title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(2.1rem, 7vw, 3.1rem);
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--meok-deep);
  margin: 0.6rem 0 0;
}
.gb-title::after {
  content: "";
  display: block;
  width: 2.6rem;
  height: 3px;
  margin-top: 1rem;
  background: var(--gam);
}

.gb-lede {
  font-size: 1.05rem;
  color: var(--meok);
  margin: 1.4rem 0 0;
  max-width: 34rem;
}

/* ---------- 본문 ---------- */

.gb-main { padding-bottom: 1rem; }

.gb-h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--meok-deep);
  margin: 0 0 1.6rem;
}

.gb-entries { padding: 2.5rem 0 3.5rem; border-top: 1px solid var(--line); }
.gb-write   { padding: 3.5rem 0 4rem;   border-top: 1px solid var(--line); }

/* ---------- 목록 ---------- */

.gb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.gb-item {
  position: relative;
  background: var(--hanji-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.4rem 1.5rem 1.4rem 1.8rem;
  box-shadow: 0 1px 3px rgba(38, 34, 27, 0.06);
}
/* 왼쪽 감빛 실괘선 — 생태계 카드와 같은 어법 */
.gb-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.2rem;
  bottom: 1.2rem;
  width: 3px;
  background: linear-gradient(to bottom, var(--gam), rgba(179, 100, 31, 0.25));
}

.gb-item-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 0.8rem;
  margin-bottom: 0.6rem;
}
.gb-item-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--meok-deep);
}
.gb-item-date {
  font-size: 0.85rem;
  color: var(--meok-faint);
  font-variant-numeric: tabular-nums;
}
.gb-item-body {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--meok);
  white-space: pre-wrap;
}

/* 목록 등장 — 30ms 계단 */
.gb-item {
  opacity: 0;
  transform: translateY(10px);
  animation: gb-rise 0.36s ease-out forwards;
}
@keyframes gb-rise {
  to { opacity: 1; transform: none; }
}

/* ---------- 상태 표시 ---------- */

.gb-state {
  font-size: 0.98rem;
  color: var(--meok-faint);
  margin: 0;
  padding: 1.6rem 0;
}
.gb-empty {
  background: rgba(250, 245, 234, 0.6);
  border: 1px dashed var(--line);
  border-radius: 4px;
  padding: 2.2rem 1.5rem;
  text-align: center;
}
.gb-error {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: #8f3520;
}
.gb-error svg { width: 1.15em; height: 1.15em; flex: none; margin-top: 0.2em; }

/* ---------- 폼 ---------- */

.gb-form { display: grid; gap: 1.5rem; }

.gb-field { display: grid; gap: 0.5rem; }

.gb-field label {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--meok-deep);
}
.gb-req { color: var(--gam-deep); margin-left: 0.15em; }

.gb-sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.gb-field input,
.gb-field textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 1rem;          /* 16px — 모바일 자동확대 방지 */
  line-height: 1.7;
  color: var(--meok);
  background: var(--hanji-card);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.75rem 0.9rem;
  min-height: 48px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.gb-field textarea { resize: vertical; min-height: 9rem; }

.gb-field input:hover,
.gb-field textarea:hover { border-color: rgba(38, 34, 27, 0.3); }

.gb-field input:focus-visible,
.gb-field textarea:focus-visible {
  outline: none;
  border-color: var(--gam-deep);
  box-shadow: 0 0 0 3px rgba(179, 100, 31, 0.22);
}

.gb-field input[aria-invalid="true"],
.gb-field textarea[aria-invalid="true"] { border-color: #8f3520; }

.gb-help {
  font-size: 0.88rem;
  color: var(--meok-faint);
  margin: 0;
}

.gb-err {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  color: #8f3520;
  margin: 0;
}
/* 색만으로 알리지 않는다 — 기호를 함께 둔다 */
.gb-err::before { content: "!"; font-weight: 700; }

/* 허니팟 — 화면·낭독기·탭 어디에도 안 걸린다 */
.gb-hp {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.gb-submit {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.9rem 2.4rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.08rem;
  color: #faf5ea;
  background: var(--gam-deep);
  border: none;
  cursor: pointer;
  /* 도장(印) 느낌 — 비대칭 모서리 하나 */
  border-radius: 3px 16px 3px 3px;
  box-shadow: 0 2px 10px rgba(150, 80, 15, 0.3);
  transition: background 0.2s ease, transform 0.2s ease;
}
.gb-submit:hover:not(:disabled) { background: var(--gam); transform: translateY(-2px); }
.gb-submit:focus-visible { outline: 3px solid var(--meok-deep); outline-offset: 3px; }
.gb-submit:disabled {
  background: var(--meok-faint);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

/* 보내는 중 — 붓끝 도는 표시 */
.gb-submit.is-busy .gb-submit-label { position: relative; padding-left: 1.5rem; }
.gb-submit.is-busy .gb-submit-label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1em;
  height: 1em;
  margin-top: -0.5em;
  border: 2px solid rgba(250, 245, 234, 0.35);
  border-top-color: #faf5ea;
  border-radius: 50%;
  animation: gb-spin 0.7s linear infinite;
}
@keyframes gb-spin { to { transform: rotate(360deg); } }

.gb-note {
  font-size: 0.92rem;
  color: var(--meok-faint);
  margin: 0;
}

.gb-formmsg {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.95rem;
  color: #8f3520;
  margin: 0;
}
.gb-formmsg::before { content: "!"; font-weight: 700; }

/* ---------- 제출 완료 ---------- */

.gb-done {
  text-align: center;
  background: var(--hanji-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 3rem 1.5rem;
}
.gb-done-seal {
  width: 3.4rem;
  height: 3.4rem;
  margin: 0 auto 1.2rem;
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.6rem;
  color: #faf5ea;
  background: var(--gam-deep);
  border-radius: 4px 18px 4px 4px;
}
.gb-done h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--meok-deep);
  margin: 0 0 0.6rem;
}
.gb-done p { margin: 0; color: var(--meok); }

.gb-again {
  margin-top: 1.8rem;
  min-height: 44px;
  padding: 0.6rem 1.4rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--meok-deep);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.gb-again:hover { background: var(--hanji-deep); border-color: rgba(38, 34, 27, 0.3); }
.gb-again:focus-visible { outline: 3px solid var(--meok-deep); outline-offset: 3px; }

/* ---------- 꼬리 ---------- */

.gb-foot {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 4rem;
}
.gb-foot-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--meok-deep);
  margin: 0 0 0.6rem;
}
.gb-foot-line {
  font-size: 0.92rem;
  color: var(--meok-faint);
  margin: 0.25rem 0 0;
}
.gb-foot-line a { color: var(--gam-deep); }

/* ---------- 좁은 화면 ---------- */

@media (max-width: 480px) {
  .gb-head { padding: 2rem 0 1.8rem; }
  .gb-item { padding: 1.2rem 1.2rem 1.2rem 1.5rem; }
  .gb-submit { width: 100%; justify-self: stretch; }
}

@media (prefers-reduced-motion: reduce) {
  .gb-item { opacity: 1; transform: none; animation: none; }
  .gb-submit:hover:not(:disabled) { transform: none; }
  .gb-submit.is-busy .gb-submit-label::before { animation: none; }
  .gb-back, .gb-submit, .gb-again,
  .gb-field input, .gb-field textarea { transition: none; }
}