/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:active { background: var(--color-primary-hover); transform: scale(0.98); }
.btn-secondary { background: var(--bg-card-sub); color: var(--text-main); border-color: var(--border-color); }
.btn-secondary:active { background: #475569; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-sm { min-height: 34px; padding: 4px 10px; font-size: 13px; border-radius: var(--radius-sm); }
.btn-block { width: 100%; }

/* フォーム部品 */
.form-group {
  margin-bottom: 14px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  transition: border-color 0.15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* 入力ユニット付き */
.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}
.input-with-unit .form-control {
  padding-right: 36px;
}
.input-unit {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  font-size: 13px;
  pointer-events: none;
}

/* クイック選択チップ */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}
.chip-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}
.chip-btn.active, .chip-btn:active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* カード */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-accent);
}

/* モーダル */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}
.modal-sheet {
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-card);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  padding: 20px 16px calc(20px + var(--safe-bottom));
  transform: translateY(100%);
  transition: transform 0.25s cubic-bezier(0.1, 0.9, 0.2, 1);
}
.modal-backdrop.active .modal-sheet {
  transform: translateY(0);
}