:root {
  --bg: #f1efe8;
  --frame-bg: #ffffff;
  --border: #e3e1da;
  --input-border: #d3d1c7;
  --text: #1a1a1a;
  --muted: #6b6a64;
  --muted-light: #9a988f;
  --accent: #0c447c;
  --accent-bg: #e6f1fb;
  --accent-border: #85b7eb;
  --good: #3b6d11;
  --good-bg: #eaf3de;
  --good-border: #97c459;
  --bad: #a32d2d;
  --bad-bg: #fcebeb;
  --warn: #854f0b;
  --warn-bg: #faeeda;
  --soft-bg: #f7f6f2;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 1.5rem 1rem;
  display: flex;
  justify-content: center;
}

.hidden { display: none !important; }

.frame {
  width: 100%;
  max-width: 420px;
  background: var(--frame-bg);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 1.25rem;
}

.frame h3 {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  margin: 0 0 8px;
}

input, select, textarea, button {
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 8px 10px;
  box-sizing: border-box;
  width: 100%;
}

button { cursor: pointer; background: transparent; }

label {
  font-size: 13px;
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
}

.stack { display: flex; flex-direction: column; gap: 12px; }

.muted { color: var(--muted-light); font-size: 12px; margin: 4px 0 0; }

/* Login */
.login-frame {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 520px;
  margin: auto;
}
.login-header { text-align: center; margin-bottom: 32px; }
.login-icon { font-size: 36px; color: #c26a2b; }
.login-header h2 { font-size: 18px; font-weight: 600; margin: 8px 0 0; }
.btn-primary {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  font-weight: 500;
  background: var(--soft-bg);
}
.error-text {
  font-size: 12px;
  color: var(--bad);
  background: var(--bad-bg);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: center;
  margin: 12px 0 0;
}
.hint-text {
  font-size: 12px;
  color: var(--muted-light);
  text-align: center;
  margin: 8px 0 0;
}

/* App shell */
.app { width: 100%; max-width: 420px; margin: 0 auto; padding-bottom: 76px; }
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 12px;
}
.app-title { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.btn-link {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 13px;
  width: auto;
  padding: 4px 6px;
  text-decoration: underline;
}

.view { margin-bottom: 12px; }

/* Log entry */
.chip-row { display: flex; gap: 8px; margin-bottom: 16px; }
.chip { flex: 1; padding: 10px; font-weight: 500; background: transparent; border-color: var(--input-border); color: var(--text); }
.chip.selected { background: var(--accent-bg); color: var(--accent); border-color: var(--accent-border); }

.chip-group { display: flex; gap: 6px; margin-bottom: 8px; }
.chip-group.wrap { flex-wrap: wrap; }
.chip.small { flex: none; width: auto; padding: 5px 10px; font-size: 12px; }

.field-block {
  padding: 10px 12px;
  background: var(--bg);
  border-radius: 8px;
  margin-bottom: 16px;
}
.field-block input[type="date"] { border: none; background: transparent; padding: 0; width: 100%; }

.checkbox-row { display: flex; gap: 24px; }
.checkbox-row label { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); margin-bottom: 0; }
.checkbox-row input[type="checkbox"] { width: 18px; height: 18px; }

.split-inputs { display: flex; gap: 8px; }
.split-inputs input { flex: 1; }

.save-result {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--good-bg);
  border: 1px solid var(--good-border);
  font-size: 12px;
  color: var(--good);
}
.save-result.error {
  background: var(--bad-bg);
  border-color: var(--bad);
  color: var(--bad);
}
.save-result ul { margin: 6px 0 0; padding-left: 18px; }

/* History */
.month-picker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.month-label {
  font-size: 14px;
  font-weight: 500;
  border: none;
  background: transparent;
  padding: 4px 6px;
  width: auto;
  text-align: center;
  color: var(--text);
}
.icon-btn {
  width: auto;
  border: none;
  background: none;
  padding: 6px 10px;
  font-size: 18px;
  color: var(--muted);
}

.scroll-list {
  max-height: 55vh;
  overflow-y: auto;
  padding-right: 4px;
}

.day-group { }
.day-group .day-header { font-size: 13px; font-weight: 500; margin: 0 0 6px; }
.day-rows { display: flex; flex-direction: column; gap: 6px; }
.event-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  border: 1px solid var(--good-border);
  background: var(--good-bg);
  border-radius: 8px;
  font-size: 13px;
}
.event-row .event-value { color: var(--good); }

/* Tabbar */
.tabbar {
  display: flex;
  border-top: 1px solid var(--border);
  padding: 8px 1rem calc(8px + env(safe-area-inset-bottom));
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 420px;
  background: var(--frame-bg);
  box-sizing: border-box;
}
.tab-btn {
  flex: 1;
  text-align: center;
  border: none;
  background: none;
  padding: 6px 4px;
  color: var(--muted-light);
}
.tab-btn.active { color: var(--accent); }
.tab-btn i { font-size: 20px; display: block; }
.tab-btn span { font-size: 10px; }