:root {
  --bg: #fdfbfa;
  --card: #ffffff;
  --primary: #8b453d;
  --primary-dark: #6d352f;
  --accent: #a67c74;
  --primary-light: #f5ebe6;
  --text: #1a1a1a;
  --border: #ede5e0;
  --danger: #c45c4a;
  --ok: #8b453d;
  --shadow: 0 1px 8px rgba(139, 69, 61, 0.06);
  --tab-h: 58px;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}
button, textarea, input { font: inherit; }
button { cursor: pointer; }
textarea, input {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--primary-light);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  outline: none;
}
textarea { min-height: 72px; resize: none; overflow-y: hidden; }
a { color: var(--primary); }

.page {
  min-height: 100vh;
  padding: 20px 16px calc(var(--tab-h) + 28px + env(safe-area-inset-bottom));
}
.page.login { padding-bottom: 24px; }

.welcome { margin-bottom: 12px; font-weight: 500; }
.header-title { color: var(--accent); font-size: 15px; }
.header-status {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 6px 0 16px;
}
.header-sub { flex: 1; color: var(--accent); font-size: 13px; }
.header-sub.ok { color: var(--ok); }
.header-sub.error { color: var(--danger); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.card-title {
  font-weight: 600;
  margin-bottom: 10px;
  padding-left: 10px;
  border-left: 3px solid var(--primary);
}

.hour-row {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 8px;
}
.hour-label {
  width: 52px;
  padding-top: 10px;
  color: var(--accent);
  font-size: 13px;
  flex-shrink: 0;
}
.hour-row textarea { min-height: 44px; }

.btn {
  border: none;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 500;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  width: 100%;
  padding: 12px 16px;
  box-shadow: 0 3px 10px rgba(139, 69, 61, 0.2);
}
.btn-secondary {
  background: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid var(--border);
}
.btn-danger {
  background: #fef5f5;
  color: var(--danger);
}
.btn[disabled] { opacity: 0.55; cursor: default; }
.sync-now {
  flex-shrink: 0;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
}

.tab-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(var(--tab-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: #fff;
  border-top: 1px solid var(--border);
  display: flex;
  z-index: 20;
}
.tab-bar button {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--accent);
  font-size: 14px;
}
.tab-bar button.active { color: var(--primary); font-weight: 600; }

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(var(--tab-h) + 24px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: rgba(26, 26, 26, 0.86);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 50;
  max-width: 86vw;
  text-align: center;
}

.diary-item { display: block; width: 100%; text-align: left; background: var(--card); }
.diary-head { display: flex; align-items: center; gap: 8px; }
.diary-date { font-weight: 600; flex: 1; }
.tag {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--primary-light);
  color: var(--primary-dark);
}
.tag.warn { background: #fef5f5; color: var(--danger); }
.diary-preview { display: block; margin-top: 6px; color: #444; }
.diary-meta { display: block; margin-top: 4px; color: var(--accent); font-size: 13px; }
.empty { text-align: center; color: var(--accent); padding: 48px 16px; }

.field { margin-bottom: 12px; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; color: var(--accent); }
.muted { color: var(--accent); font-size: 13px; }
.row-actions { display: flex; gap: 8px; margin-top: 12px; }
.row-actions .btn { flex: 1; }
.delete-btn {
  border: none;
  background: transparent;
  color: var(--danger);
  font-size: 13px;
  padding: 0;
}
.date-open {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.date-open input { flex: 1; min-height: 44px; }
.date-open .btn { width: auto; padding: 10px 14px; }