.guestbook-page {
  background: var(--paper);
}

.guestbook-page .subpage-brand,
.guestbook-page .subpage-nav a {
  font-family: "Space Grotesk", var(--body);
}

.guestbook-page .subpage-brand {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.guestbook-page .subpage-nav a {
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: opacity 0.15s ease;
}

.guestbook-page .subpage-nav a:nth-child(1) { color: #d94f3d; }
.guestbook-page .subpage-nav a:nth-child(2) { color: #e8a020; }
.guestbook-page .subpage-nav a:nth-child(3) { color: #3a8f5c; }
.guestbook-page .subpage-nav a:nth-child(4) { color: #6b4fc8; }
.guestbook-page .subpage-nav a:nth-child(5) { color: #2878d6; }
.guestbook-page .subpage-nav a:nth-child(6) { color: #c0392b; }
.guestbook-page .subpage-nav a:nth-child(7) { color: #d4850a; font-weight: 800; }

.guestbook-page .subpage-nav a:hover { opacity: 0.72; }

.guestbook-main {
  display: block;
  padding-top: 2.5rem;
}

/* ── 상단 헤더 ───────────────────────────────────── */
.guestbook-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.guestbook-kicker {
  margin: 0 0 0.3rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.guestbook-subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.guestbook-write-btn {
  padding: 0.65rem 1.25rem;
  border: 2.5px solid #111;
  border-radius: 4px;
  background: #111;
  color: #fff;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.18);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.guestbook-write-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.2);
}

.guestbook-write-btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.15);
}

/* ── 의자 그리드 ─────────────────────────────────── */
.chair-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 1rem;
  align-items: flex-end;
}

.chair-empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.chair-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 118px;
  transform: rotate(var(--tilt, 0deg)) translateY(var(--offset, 0px));
  transform-origin: bottom center;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.chair-btn img {
  width: 100%;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.chair-btn:hover {
  transform: rotate(calc(var(--tilt, 0deg) * 0.3)) translateY(calc(var(--offset, 0px) - 10px));
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.22));
}

.chair-btn:active {
  transform: rotate(var(--tilt, 0deg)) translateY(calc(var(--offset, 0px) + 2px));
  filter: none;
}

/* ── 말풍선 ──────────────────────────────────────── */
.chair-bubble {
  position: fixed;
  z-index: 200;
  width: 230px;
  padding: 1rem 1.1rem 0.95rem;
  background: #fff;
  border: 2.5px solid #111;
  border-radius: 4px;
  box-shadow: 5px 5px 0 #111;
  pointer-events: auto;
}

/* 꼬리 — 아래 (버블이 의자 위에 있을 때) */
.chair-bubble[data-tail="bottom"]::after,
.chair-bubble[data-tail="bottom"]::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.chair-bubble[data-tail="bottom"]::after {
  bottom: -15px;
  border: 7.5px solid transparent;
  border-top-color: #111;
}
.chair-bubble[data-tail="bottom"]::before {
  bottom: -11.5px;
  border: 7px solid transparent;
  border-top-color: #fff;
  z-index: 1;
}

/* 꼬리 — 위 (버블이 의자 아래에 있을 때) */
.chair-bubble[data-tail="top"]::after,
.chair-bubble[data-tail="top"]::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.chair-bubble[data-tail="top"]::after {
  top: -15px;
  border: 7.5px solid transparent;
  border-bottom-color: #111;
}
.chair-bubble[data-tail="top"]::before {
  top: -11.5px;
  border: 7px solid transparent;
  border-bottom-color: #fff;
  z-index: 1;
}

.bubble-close {
  position: absolute;
  top: 0.3rem;
  right: 0.45rem;
  border: none;
  background: none;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0.1rem 0.25rem;
}
.bubble-close:hover { color: var(--ink); }

.bubble-name {
  display: block;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  padding-right: 1.4rem;
  margin-bottom: 0.15rem;
}

.bubble-date {
  display: block;
  font-size: 0.71rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.bubble-message {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--forest);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── 글쓰기 모달 ─────────────────────────────────── */
.write-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.52);
  padding: 1rem;
  backdrop-filter: blur(3px);
}

.write-modal[hidden] {
  display: none;
}

.write-modal-card {
  position: relative;
  width: min(460px, 100%);
  padding: 1.8rem;
  background: #fff;
  border: 2.5px solid #111;
  border-radius: 4px;
  box-shadow: 7px 7px 0 #111;
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.9rem;
  border: none;
  background: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
}
.modal-close:hover { color: var(--ink); }

.write-modal-kicker {
  margin: 0 0 1.3rem;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

/* ── 폼 ─────────────────────────────────────────── */
.guestbook-form {
  display: grid;
  gap: 0.9rem;
}

.guestbook-field {
  display: grid;
  gap: 0.4rem;
}

.guestbook-field-label {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.guestbook-input,
.guestbook-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 2px solid #ddd;
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s ease;
}
.guestbook-textarea {
  resize: vertical;
  min-height: 7rem;
}
.guestbook-input:focus,
.guestbook-textarea:focus {
  border-color: #111;
}

.guestbook-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.2rem;
}

.guestbook-status {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
}
.guestbook-status[data-error="true"] { color: #b94040; }

.guestbook-submit {
  flex-shrink: 0;
  padding: 0.65rem 1.4rem;
  border: 2.5px solid #111;
  border-radius: 4px;
  background: #111;
  color: #fff;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.2);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.guestbook-submit:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}
.guestbook-submit:not(:disabled):hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.22);
}
.guestbook-submit:not(:disabled):active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.15);
}

/* ── 반응형 ─────────────────────────────────────── */
@media (max-width: 680px) {
  .chair-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem 1rem;
    align-items: end;
  }
  .chair-btn { width: 100%; }
  .guestbook-form-footer { flex-direction: column; align-items: stretch; }
  .guestbook-submit { text-align: center; }
}