:root {
  --bg: #f6f2eb;
  --card: #ffffff;
  --line: #e6ddd0;
  --text: #3a332c;
  --muted: #8a7d6e;
  --accent: #7a6a58;
  --accent-dark: #5f5243;
  --chip: #efe5d8;
  --input: #faf8f5;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  line-height: 1.9;
  -webkit-text-size-adjust: 100%;
}
main { max-width: 640px; margin: 0 auto; padding: 32px 16px 48px; }
.hero { text-align: center; margin-bottom: 32px; }
.portrait {
  width: 168px; height: 168px; border-radius: 50%; object-fit: cover;
  box-shadow: 0 2px 12px rgba(90, 70, 50, .18); background: #d8cbbb;
}
h1 { font-size: 2rem; letter-spacing: .2em; margin: 18px 0 0; font-weight: 600; }
.kana { margin: 0; color: var(--muted); letter-spacing: .15em; font-size: .9rem; }
.dates { color: var(--muted); font-size: .9rem; margin: 8px 0 0; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 22px 22px; margin: 0 0 18px;
}
.card p { margin: 0 0 1em; }
.card p:last-child { margin-bottom: 0; }
.card-label { font-size: .95rem; color: var(--accent); margin: 0 0 8px; letter-spacing: .1em; }
.sign { text-align: right; }
.section-title, .form-title {
  font-size: 1.15rem; color: var(--accent); letter-spacing: .2em;
  border-bottom: 1px solid var(--line); padding-bottom: 10px; margin: 36px 0 18px;
}
.form-title { margin-top: 0; }
.msg-body { white-space: pre-wrap; margin: 0 0 10px; }
.msg-meta { color: var(--muted); font-size: .85rem; display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; }
.msg-secret { color: var(--muted); font-size: .95rem; text-align: center; background: #fbf8f4; }
.photos { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 8px; margin: 0 0 12px; }
.photos img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 8px; cursor: zoom-in; }
.muted { color: var(--muted); text-align: center; }
label { display: block; color: var(--muted); font-size: .9rem; margin: 0 0 16px; }
input, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px; font: inherit; font-size: 16px;
  color: var(--text); background: var(--input); border: 1px solid var(--line); border-radius: 8px;
}
input[type=file] { padding: 10px; font-size: 14px; }
button[type=submit] {
  width: 100%; padding: 14px; border: 0; border-radius: 8px; background: var(--accent);
  color: #fff; font: inherit; font-size: 1rem; letter-spacing: .2em; cursor: pointer;
}
button[type=submit]:disabled { opacity: .6; }
.status { margin: 10px 0 0 !important; font-size: .9rem; text-align: center; min-height: 1em; }
.status.error { color: #a0452f; }
.note { font-size: .9rem; color: var(--muted); }
.small { font-size: .8rem; }
.tabs { display: flex; gap: 8px; margin: 16px 0 18px; }
.tab {
  flex: 1; padding: 10px 6px; border: 1px solid var(--line); background: var(--input);
  border-radius: 8px; font: inherit; font-size: .85rem; color: var(--muted); cursor: pointer;
}
.tab.active { background: var(--chip); color: var(--accent-dark); border-color: #d9c9b4; }
.who { font-size: .9rem; color: var(--muted); }
.link { background: none; border: 0; color: var(--accent); text-decoration: underline; font: inherit; cursor: pointer; padding: 0 0 0 6px; }
.sub-title { font-size: 1rem; color: var(--accent); margin: 28px 0 12px; }
.mine { border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 12px; background: #fdfbf8; }
.del { margin-left: auto; background: #fff; border: 1px solid #d9b9ad; color: #a0452f; border-radius: 6px; font-size: .8rem; padding: 2px 10px; cursor: pointer; }
.user-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; border-bottom: 1px solid var(--line); padding: 10px 0; font-size: .9rem; }
.user-row span { flex: 1 1 180px; }
.user-row button { background: var(--chip); border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px; font: inherit; font-size: .8rem; cursor: pointer; }
footer { text-align: center; color: var(--muted); font-size: .8rem; margin-top: 40px; }
.lightbox { position: fixed; inset: 0; background: rgba(30, 25, 20, .9); display: flex; align-items: center; justify-content: center; z-index: 10; cursor: zoom-out; }
.lightbox img { max-width: 94vw; max-height: 90vh; border-radius: 6px; }
.nw { white-space: nowrap; display: inline-block; }