:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #e0e2e7;
  --color-text: #1f2328;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-success: #16a34a;
  --color-success-bg: #ecfdf3;
  --color-warning-bg: #fff7ed;
  --color-warning-text: #9a3412;
  --color-danger: #dc2626;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #16181d;
    --color-surface: #22252b;
    --color-border: #33363d;
    --color-text: #ecedee;
    --color-text-muted: #9aa0a6;
    --color-primary: #3b82f6;
    --color-primary-dark: #60a5fa;
    --color-success: #22c55e;
    --color-success-bg: #10331f;
    --color-warning-bg: #3a2410;
    --color-warning-text: #fdba74;
    --color-danger: #f87171;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.app-header h1 {
  font-size: 1.25rem;
  margin: 0;
}

.icon-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 6px;
  line-height: 1;
}

.notice {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.readonly-banner {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.hidden { display: none !important; }

.drug-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.drug-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: white;
  padding: 16px 18px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.drug-btn:active { background: var(--color-primary-dark); }

.drug-btn:disabled {
  background: var(--color-border);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.drug-btn .drug-btn-sub {
  font-weight: 400;
  font-size: 0.8rem;
  opacity: 0.85;
}

.drug-btn .drug-btn-count {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
}

section.summary, section.log {
  margin-bottom: 20px;
}

h2 {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin: 0 0 8px;
}

.summary-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.summary-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 0.9rem;
}

.summary-list li.done {
  background: var(--color-success-bg);
  border-color: var(--color-success);
  color: var(--color-success);
}

#logTable {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.9rem;
}

#logTable th, #logTable td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

#logTable tr:last-child td { border-bottom: none; }

#logTable th {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.8rem;
}

.row-delete {
  background: none;
  border: none;
  color: var(--color-danger);
  cursor: pointer;
  font-size: 0.85rem;
}

.actions-cell {
  display: flex;
  gap: 8px;
  align-items: center;
  white-space: nowrap;
}

.row-action {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.85rem;
}

.time-edit-btn {
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0;
}

.time-input {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 0.85rem;
  background: var(--color-surface);
  color: var(--color-text);
  width: 100px;
}

.empty-log {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 16px 0;
}

.date-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  max-width: 560px;
  margin: 0 auto;
}

.nav-btn {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.9rem;
  cursor: pointer;
}

.today-btn { margin-left: auto; }

#datePicker {
  flex: 1;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 10;
}

@media (min-width: 600px) {
  .modal { align-items: center; }
}

.modal-content {
  background: var(--color-surface);
  color: var(--color-text);
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: 16px 16px 0 0;
  padding: 20px;
}

@media (min-width: 600px) {
  .modal-content { border-radius: 16px; }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.modal-header h2 { margin: 0; font-size: 1.05rem; color: var(--color-text); }

.auth-content {
  text-align: center;
  border-radius: 16px;
  max-width: 340px;
}

.auth-content h1 {
  font-size: 1.3rem;
  margin: 0 0 8px;
}

.auth-content p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.auth-content .primary-btn {
  margin: 0;
  width: 100%;
}

.auth-error {
  color: var(--color-danger) !important;
  margin-top: 12px !important;
}

.account-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--color-border);
  margin-top: 16px;
  padding-top: 16px;
}

.account-info span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.drug-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.drug-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
  background: var(--color-bg);
}

.drug-list-item .name { font-weight: 600; }
.drug-list-item .meta { font-size: 0.8rem; color: var(--color-text-muted); }

.add-btn {
  width: 100%;
  border: 1px dashed var(--color-border);
  background: none;
  color: var(--color-primary);
  border-radius: var(--radius);
  padding: 12px;
  font-size: 0.9rem;
  cursor: pointer;
}

#drugEditForm {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#drugEditForm label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

#drugEditForm input, #drugEditForm select {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px;
  font-size: 1rem;
  background: var(--color-surface);
  color: var(--color-text);
}

.form-actions {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
}

.primary-btn {
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
  margin-left: auto;
}

.danger-btn {
  background: none;
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
}