:root {
  --bg: #fff7f4;
  --bg-grad-1: #ffe4ec;
  --bg-grad-2: #f3e8ff;
  --card: #ffffff;
  --ink: #2b2438;
  --ink-soft: #6b6478;
  --accent: #ff6b9a;
  --accent-2: #b794f6;
  --border: #f1e3ec;
  --shadow: 0 4px 14px rgba(180, 120, 160, 0.10);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: linear-gradient(160deg, var(--bg-grad-1) 0%, var(--bg) 50%, var(--bg-grad-2) 100%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 20px 16px 80px;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0 22px;
  flex-wrap: wrap;
  gap: 10px;
}
.site-header h1 {
  font-size: 1.55rem;
  margin: 0;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-header h1 .heart {
  color: var(--accent);
  font-size: 1.15em;
}
.site-header nav { display: flex; gap: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.06s ease, filter 0.15s ease;
}
.btn:hover { filter: brightness(1.05); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn.subtle {
  background: #fff;
  color: var(--ink);
  border-color: var(--border);
}
.btn.danger { background: #e85a7c; }
.btn.success { background: #4ec07d; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 16px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}

.card .to {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.card .to b {
  color: var(--accent);
  font-weight: 600;
}
.card .msg {
  font-size: 1.02rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.card .meta {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--ink-soft);
}
.card .meta a {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.form-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 22px;
  box-shadow: var(--shadow);
}
.form-card label {
  display: block;
  font-weight: 600;
  margin: 14px 0 6px;
  font-size: 0.95rem;
}
.form-card input[type=text],
.form-card textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.15s;
}
.form-card input[type=text]:focus,
.form-card textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-card textarea {
  min-height: 130px;
  resize: vertical;
}
.counter {
  text-align: right;
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 4px;
}
.counter.over { color: #d74e4e; font-weight: 600; }

.notice {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 0.86rem;
  color: var(--ink-soft);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}
.notice button {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
}

.status-msg {
  padding: 11px 14px;
  border-radius: 10px;
  margin-top: 14px;
  font-size: 0.92rem;
}
.status-msg.error { background: #ffe5e9; color: #b03050; }
.status-msg.success { background: #dff6e6; color: #19794a; }

.footnote {
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-top: 18px;
}

.empty {
  text-align: center;
  color: var(--ink-soft);
  padding: 40px 20px;
}

.load-more {
  display: block;
  margin: 18px auto 0;
}

/* Admin panel */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.tabs button {
  background: none;
  border: none;
  padding: 10px 14px;
  font-size: 0.96rem;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.admin-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.admin-card .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 8px;
}
.admin-card .ids {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}
.admin-card .actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.admin-card .actions .btn {
  padding: 6px 12px;
  font-size: 0.85rem;
}

.modal-bg {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}
.modal {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px;
  max-width: 380px;
  width: 100%;
}
.modal h3 { margin: 0 0 14px; }
.modal .row { display: flex; gap: 8px; margin-top: 14px; justify-content: flex-end; }

@media (max-width: 480px) {
  .wrap { padding: 12px 12px 60px; }
  .site-header h1 { font-size: 1.3rem; }
}